# -*- coding: utf-8 -*-
# Copyright 2024 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
import os

# try/except added for compatibility with python < 3.8
try:
    from unittest import mock
    from unittest.mock import AsyncMock  # pragma: NO COVER
except ImportError:  # pragma: NO COVER
    import mock

from collections.abc import Iterable
import json
import math

from google.api_core import gapic_v1, grpc_helpers, grpc_helpers_async, path_template
from google.api_core import api_core_version, client_options
from google.api_core import exceptions as core_exceptions
import google.auth
from google.auth import credentials as ga_credentials
from google.auth.exceptions import MutualTLSChannelError
from google.oauth2 import service_account
from google.protobuf import json_format
from google.shopping.type.types import types
import grpc
from grpc.experimental import aio
from proto.marshal.rules import wrappers
from proto.marshal.rules.dates import DurationRule, TimestampRule
import pytest
from requests import PreparedRequest, Request, Response
from requests.sessions import Session

from google.shopping.css_v1.services.css_products_service import (
    CssProductsServiceAsyncClient,
    CssProductsServiceClient,
    pagers,
    transports,
)
from google.shopping.css_v1.types import css_product_common, css_products


def client_cert_source_callback():
    return b"cert bytes", b"key bytes"


# If default endpoint is localhost, then default mtls endpoint will be the same.
# This method modifies the default endpoint so the client can produce a different
# mtls endpoint for endpoint testing purposes.
def modify_default_endpoint(client):
    return (
        "foo.googleapis.com"
        if ("localhost" in client.DEFAULT_ENDPOINT)
        else client.DEFAULT_ENDPOINT
    )


# If default endpoint template is localhost, then default mtls endpoint will be the same.
# This method modifies the default endpoint template so the client can produce a different
# mtls endpoint for endpoint testing purposes.
def modify_default_endpoint_template(client):
    return (
        "test.{UNIVERSE_DOMAIN}"
        if ("localhost" in client._DEFAULT_ENDPOINT_TEMPLATE)
        else client._DEFAULT_ENDPOINT_TEMPLATE
    )


def test__get_default_mtls_endpoint():
    api_endpoint = "example.googleapis.com"
    api_mtls_endpoint = "example.mtls.googleapis.com"
    sandbox_endpoint = "example.sandbox.googleapis.com"
    sandbox_mtls_endpoint = "example.mtls.sandbox.googleapis.com"
    non_googleapi = "api.example.com"

    assert CssProductsServiceClient._get_default_mtls_endpoint(None) is None
    assert (
        CssProductsServiceClient._get_default_mtls_endpoint(api_endpoint)
        == api_mtls_endpoint
    )
    assert (
        CssProductsServiceClient._get_default_mtls_endpoint(api_mtls_endpoint)
        == api_mtls_endpoint
    )
    assert (
        CssProductsServiceClient._get_default_mtls_endpoint(sandbox_endpoint)
        == sandbox_mtls_endpoint
    )
    assert (
        CssProductsServiceClient._get_default_mtls_endpoint(sandbox_mtls_endpoint)
        == sandbox_mtls_endpoint
    )
    assert (
        CssProductsServiceClient._get_default_mtls_endpoint(non_googleapi)
        == non_googleapi
    )


def test__read_environment_variables():
    assert CssProductsServiceClient._read_environment_variables() == (
        False,
        "auto",
        None,
    )

    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "true"}):
        assert CssProductsServiceClient._read_environment_variables() == (
            True,
            "auto",
            None,
        )

    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "false"}):
        assert CssProductsServiceClient._read_environment_variables() == (
            False,
            "auto",
            None,
        )

    with mock.patch.dict(
        os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "Unsupported"}
    ):
        with pytest.raises(ValueError) as excinfo:
            CssProductsServiceClient._read_environment_variables()
    assert (
        str(excinfo.value)
        == "Environment variable `GOOGLE_API_USE_CLIENT_CERTIFICATE` must be either `true` or `false`"
    )

    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "never"}):
        assert CssProductsServiceClient._read_environment_variables() == (
            False,
            "never",
            None,
        )

    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "always"}):
        assert CssProductsServiceClient._read_environment_variables() == (
            False,
            "always",
            None,
        )

    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "auto"}):
        assert CssProductsServiceClient._read_environment_variables() == (
            False,
            "auto",
            None,
        )

    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "Unsupported"}):
        with pytest.raises(MutualTLSChannelError) as excinfo:
            CssProductsServiceClient._read_environment_variables()
    assert (
        str(excinfo.value)
        == "Environment variable `GOOGLE_API_USE_MTLS_ENDPOINT` must be `never`, `auto` or `always`"
    )

    with mock.patch.dict(os.environ, {"GOOGLE_CLOUD_UNIVERSE_DOMAIN": "foo.com"}):
        assert CssProductsServiceClient._read_environment_variables() == (
            False,
            "auto",
            "foo.com",
        )


def test__get_client_cert_source():
    mock_provided_cert_source = mock.Mock()
    mock_default_cert_source = mock.Mock()

    assert CssProductsServiceClient._get_client_cert_source(None, False) is None
    assert (
        CssProductsServiceClient._get_client_cert_source(
            mock_provided_cert_source, False
        )
        is None
    )
    assert (
        CssProductsServiceClient._get_client_cert_source(
            mock_provided_cert_source, True
        )
        == mock_provided_cert_source
    )

    with mock.patch(
        "google.auth.transport.mtls.has_default_client_cert_source", return_value=True
    ):
        with mock.patch(
            "google.auth.transport.mtls.default_client_cert_source",
            return_value=mock_default_cert_source,
        ):
            assert (
                CssProductsServiceClient._get_client_cert_source(None, True)
                is mock_default_cert_source
            )
            assert (
                CssProductsServiceClient._get_client_cert_source(
                    mock_provided_cert_source, "true"
                )
                is mock_provided_cert_source
            )


@mock.patch.object(
    CssProductsServiceClient,
    "_DEFAULT_ENDPOINT_TEMPLATE",
    modify_default_endpoint_template(CssProductsServiceClient),
)
@mock.patch.object(
    CssProductsServiceAsyncClient,
    "_DEFAULT_ENDPOINT_TEMPLATE",
    modify_default_endpoint_template(CssProductsServiceAsyncClient),
)
def test__get_api_endpoint():
    api_override = "foo.com"
    mock_client_cert_source = mock.Mock()
    default_universe = CssProductsServiceClient._DEFAULT_UNIVERSE
    default_endpoint = CssProductsServiceClient._DEFAULT_ENDPOINT_TEMPLATE.format(
        UNIVERSE_DOMAIN=default_universe
    )
    mock_universe = "bar.com"
    mock_endpoint = CssProductsServiceClient._DEFAULT_ENDPOINT_TEMPLATE.format(
        UNIVERSE_DOMAIN=mock_universe
    )

    assert (
        CssProductsServiceClient._get_api_endpoint(
            api_override, mock_client_cert_source, default_universe, "always"
        )
        == api_override
    )
    assert (
        CssProductsServiceClient._get_api_endpoint(
            None, mock_client_cert_source, default_universe, "auto"
        )
        == CssProductsServiceClient.DEFAULT_MTLS_ENDPOINT
    )
    assert (
        CssProductsServiceClient._get_api_endpoint(None, None, default_universe, "auto")
        == default_endpoint
    )
    assert (
        CssProductsServiceClient._get_api_endpoint(
            None, None, default_universe, "always"
        )
        == CssProductsServiceClient.DEFAULT_MTLS_ENDPOINT
    )
    assert (
        CssProductsServiceClient._get_api_endpoint(
            None, mock_client_cert_source, default_universe, "always"
        )
        == CssProductsServiceClient.DEFAULT_MTLS_ENDPOINT
    )
    assert (
        CssProductsServiceClient._get_api_endpoint(None, None, mock_universe, "never")
        == mock_endpoint
    )
    assert (
        CssProductsServiceClient._get_api_endpoint(
            None, None, default_universe, "never"
        )
        == default_endpoint
    )

    with pytest.raises(MutualTLSChannelError) as excinfo:
        CssProductsServiceClient._get_api_endpoint(
            None, mock_client_cert_source, mock_universe, "auto"
        )
    assert (
        str(excinfo.value)
        == "mTLS is not supported in any universe other than googleapis.com."
    )


def test__get_universe_domain():
    client_universe_domain = "foo.com"
    universe_domain_env = "bar.com"

    assert (
        CssProductsServiceClient._get_universe_domain(
            client_universe_domain, universe_domain_env
        )
        == client_universe_domain
    )
    assert (
        CssProductsServiceClient._get_universe_domain(None, universe_domain_env)
        == universe_domain_env
    )
    assert (
        CssProductsServiceClient._get_universe_domain(None, None)
        == CssProductsServiceClient._DEFAULT_UNIVERSE
    )

    with pytest.raises(ValueError) as excinfo:
        CssProductsServiceClient._get_universe_domain("", None)
    assert str(excinfo.value) == "Universe Domain cannot be an empty string."


@pytest.mark.parametrize(
    "client_class,transport_class,transport_name",
    [
        (CssProductsServiceClient, transports.CssProductsServiceGrpcTransport, "grpc"),
        (CssProductsServiceClient, transports.CssProductsServiceRestTransport, "rest"),
    ],
)
def test__validate_universe_domain(client_class, transport_class, transport_name):
    client = client_class(
        transport=transport_class(credentials=ga_credentials.AnonymousCredentials())
    )
    assert client._validate_universe_domain() == True

    # Test the case when universe is already validated.
    assert client._validate_universe_domain() == True

    if transport_name == "grpc":
        # Test the case where credentials are provided by the
        # `local_channel_credentials`. The default universes in both match.
        channel = grpc.secure_channel(
            "http://localhost/", grpc.local_channel_credentials()
        )
        client = client_class(transport=transport_class(channel=channel))
        assert client._validate_universe_domain() == True

        # Test the case where credentials do not exist: e.g. a transport is provided
        # with no credentials. Validation should still succeed because there is no
        # mismatch with non-existent credentials.
        channel = grpc.secure_channel(
            "http://localhost/", grpc.local_channel_credentials()
        )
        transport = transport_class(channel=channel)
        transport._credentials = None
        client = client_class(transport=transport)
        assert client._validate_universe_domain() == True

    # TODO: This is needed to cater for older versions of google-auth
    # Make this test unconditional once the minimum supported version of
    # google-auth becomes 2.23.0 or higher.
    google_auth_major, google_auth_minor = [
        int(part) for part in google.auth.__version__.split(".")[0:2]
    ]
    if google_auth_major > 2 or (google_auth_major == 2 and google_auth_minor >= 23):
        credentials = ga_credentials.AnonymousCredentials()
        credentials._universe_domain = "foo.com"
        # Test the case when there is a universe mismatch from the credentials.
        client = client_class(transport=transport_class(credentials=credentials))
        with pytest.raises(ValueError) as excinfo:
            client._validate_universe_domain()
        assert (
            str(excinfo.value)
            == "The configured universe domain (googleapis.com) does not match the universe domain found in the credentials (foo.com). If you haven't configured the universe domain explicitly, `googleapis.com` is the default."
        )

        # Test the case when there is a universe mismatch from the client.
        #
        # TODO: Make this test unconditional once the minimum supported version of
        # google-api-core becomes 2.15.0 or higher.
        api_core_major, api_core_minor = [
            int(part) for part in api_core_version.__version__.split(".")[0:2]
        ]
        if api_core_major > 2 or (api_core_major == 2 and api_core_minor >= 15):
            client = client_class(
                client_options={"universe_domain": "bar.com"},
                transport=transport_class(
                    credentials=ga_credentials.AnonymousCredentials(),
                ),
            )
            with pytest.raises(ValueError) as excinfo:
                client._validate_universe_domain()
            assert (
                str(excinfo.value)
                == "The configured universe domain (bar.com) does not match the universe domain found in the credentials (googleapis.com). If you haven't configured the universe domain explicitly, `googleapis.com` is the default."
            )

    # Test that ValueError is raised if universe_domain is provided via client options and credentials is None
    with pytest.raises(ValueError):
        client._compare_universes("foo.bar", None)


@pytest.mark.parametrize(
    "client_class,transport_name",
    [
        (CssProductsServiceClient, "grpc"),
        (CssProductsServiceAsyncClient, "grpc_asyncio"),
        (CssProductsServiceClient, "rest"),
    ],
)
def test_css_products_service_client_from_service_account_info(
    client_class, transport_name
):
    creds = ga_credentials.AnonymousCredentials()
    with mock.patch.object(
        service_account.Credentials, "from_service_account_info"
    ) as factory:
        factory.return_value = creds
        info = {"valid": True}
        client = client_class.from_service_account_info(info, transport=transport_name)
        assert client.transport._credentials == creds
        assert isinstance(client, client_class)

        assert client.transport._host == (
            "css.googleapis.com:443"
            if transport_name in ["grpc", "grpc_asyncio"]
            else "https://css.googleapis.com"
        )


@pytest.mark.parametrize(
    "transport_class,transport_name",
    [
        (transports.CssProductsServiceGrpcTransport, "grpc"),
        (transports.CssProductsServiceGrpcAsyncIOTransport, "grpc_asyncio"),
        (transports.CssProductsServiceRestTransport, "rest"),
    ],
)
def test_css_products_service_client_service_account_always_use_jwt(
    transport_class, transport_name
):
    with mock.patch.object(
        service_account.Credentials, "with_always_use_jwt_access", create=True
    ) as use_jwt:
        creds = service_account.Credentials(None, None, None)
        transport = transport_class(credentials=creds, always_use_jwt_access=True)
        use_jwt.assert_called_once_with(True)

    with mock.patch.object(
        service_account.Credentials, "with_always_use_jwt_access", create=True
    ) as use_jwt:
        creds = service_account.Credentials(None, None, None)
        transport = transport_class(credentials=creds, always_use_jwt_access=False)
        use_jwt.assert_not_called()


@pytest.mark.parametrize(
    "client_class,transport_name",
    [
        (CssProductsServiceClient, "grpc"),
        (CssProductsServiceAsyncClient, "grpc_asyncio"),
        (CssProductsServiceClient, "rest"),
    ],
)
def test_css_products_service_client_from_service_account_file(
    client_class, transport_name
):
    creds = ga_credentials.AnonymousCredentials()
    with mock.patch.object(
        service_account.Credentials, "from_service_account_file"
    ) as factory:
        factory.return_value = creds
        client = client_class.from_service_account_file(
            "dummy/file/path.json", transport=transport_name
        )
        assert client.transport._credentials == creds
        assert isinstance(client, client_class)

        client = client_class.from_service_account_json(
            "dummy/file/path.json", transport=transport_name
        )
        assert client.transport._credentials == creds
        assert isinstance(client, client_class)

        assert client.transport._host == (
            "css.googleapis.com:443"
            if transport_name in ["grpc", "grpc_asyncio"]
            else "https://css.googleapis.com"
        )


def test_css_products_service_client_get_transport_class():
    transport = CssProductsServiceClient.get_transport_class()
    available_transports = [
        transports.CssProductsServiceGrpcTransport,
        transports.CssProductsServiceRestTransport,
    ]
    assert transport in available_transports

    transport = CssProductsServiceClient.get_transport_class("grpc")
    assert transport == transports.CssProductsServiceGrpcTransport


@pytest.mark.parametrize(
    "client_class,transport_class,transport_name",
    [
        (CssProductsServiceClient, transports.CssProductsServiceGrpcTransport, "grpc"),
        (
            CssProductsServiceAsyncClient,
            transports.CssProductsServiceGrpcAsyncIOTransport,
            "grpc_asyncio",
        ),
        (CssProductsServiceClient, transports.CssProductsServiceRestTransport, "rest"),
    ],
)
@mock.patch.object(
    CssProductsServiceClient,
    "_DEFAULT_ENDPOINT_TEMPLATE",
    modify_default_endpoint_template(CssProductsServiceClient),
)
@mock.patch.object(
    CssProductsServiceAsyncClient,
    "_DEFAULT_ENDPOINT_TEMPLATE",
    modify_default_endpoint_template(CssProductsServiceAsyncClient),
)
def test_css_products_service_client_client_options(
    client_class, transport_class, transport_name
):
    # Check that if channel is provided we won't create a new one.
    with mock.patch.object(CssProductsServiceClient, "get_transport_class") as gtc:
        transport = transport_class(credentials=ga_credentials.AnonymousCredentials())
        client = client_class(transport=transport)
        gtc.assert_not_called()

    # Check that if channel is provided via str we will create a new one.
    with mock.patch.object(CssProductsServiceClient, "get_transport_class") as gtc:
        client = client_class(transport=transport_name)
        gtc.assert_called()

    # Check the case api_endpoint is provided.
    options = client_options.ClientOptions(api_endpoint="squid.clam.whelk")
    with mock.patch.object(transport_class, "__init__") as patched:
        patched.return_value = None
        client = client_class(transport=transport_name, client_options=options)
        patched.assert_called_once_with(
            credentials=None,
            credentials_file=None,
            host="squid.clam.whelk",
            scopes=None,
            client_cert_source_for_mtls=None,
            quota_project_id=None,
            client_info=transports.base.DEFAULT_CLIENT_INFO,
            always_use_jwt_access=True,
            api_audience=None,
        )

    # Check the case api_endpoint is not provided and GOOGLE_API_USE_MTLS_ENDPOINT is
    # "never".
    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "never"}):
        with mock.patch.object(transport_class, "__init__") as patched:
            patched.return_value = None
            client = client_class(transport=transport_name)
            patched.assert_called_once_with(
                credentials=None,
                credentials_file=None,
                host=client._DEFAULT_ENDPOINT_TEMPLATE.format(
                    UNIVERSE_DOMAIN=client._DEFAULT_UNIVERSE
                ),
                scopes=None,
                client_cert_source_for_mtls=None,
                quota_project_id=None,
                client_info=transports.base.DEFAULT_CLIENT_INFO,
                always_use_jwt_access=True,
                api_audience=None,
            )

    # Check the case api_endpoint is not provided and GOOGLE_API_USE_MTLS_ENDPOINT is
    # "always".
    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "always"}):
        with mock.patch.object(transport_class, "__init__") as patched:
            patched.return_value = None
            client = client_class(transport=transport_name)
            patched.assert_called_once_with(
                credentials=None,
                credentials_file=None,
                host=client.DEFAULT_MTLS_ENDPOINT,
                scopes=None,
                client_cert_source_for_mtls=None,
                quota_project_id=None,
                client_info=transports.base.DEFAULT_CLIENT_INFO,
                always_use_jwt_access=True,
                api_audience=None,
            )

    # Check the case api_endpoint is not provided and GOOGLE_API_USE_MTLS_ENDPOINT has
    # unsupported value.
    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "Unsupported"}):
        with pytest.raises(MutualTLSChannelError) as excinfo:
            client = client_class(transport=transport_name)
    assert (
        str(excinfo.value)
        == "Environment variable `GOOGLE_API_USE_MTLS_ENDPOINT` must be `never`, `auto` or `always`"
    )

    # Check the case GOOGLE_API_USE_CLIENT_CERTIFICATE has unsupported value.
    with mock.patch.dict(
        os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "Unsupported"}
    ):
        with pytest.raises(ValueError) as excinfo:
            client = client_class(transport=transport_name)
    assert (
        str(excinfo.value)
        == "Environment variable `GOOGLE_API_USE_CLIENT_CERTIFICATE` must be either `true` or `false`"
    )

    # Check the case quota_project_id is provided
    options = client_options.ClientOptions(quota_project_id="octopus")
    with mock.patch.object(transport_class, "__init__") as patched:
        patched.return_value = None
        client = client_class(client_options=options, transport=transport_name)
        patched.assert_called_once_with(
            credentials=None,
            credentials_file=None,
            host=client._DEFAULT_ENDPOINT_TEMPLATE.format(
                UNIVERSE_DOMAIN=client._DEFAULT_UNIVERSE
            ),
            scopes=None,
            client_cert_source_for_mtls=None,
            quota_project_id="octopus",
            client_info=transports.base.DEFAULT_CLIENT_INFO,
            always_use_jwt_access=True,
            api_audience=None,
        )
    # Check the case api_endpoint is provided
    options = client_options.ClientOptions(
        api_audience="https://language.googleapis.com"
    )
    with mock.patch.object(transport_class, "__init__") as patched:
        patched.return_value = None
        client = client_class(client_options=options, transport=transport_name)
        patched.assert_called_once_with(
            credentials=None,
            credentials_file=None,
            host=client._DEFAULT_ENDPOINT_TEMPLATE.format(
                UNIVERSE_DOMAIN=client._DEFAULT_UNIVERSE
            ),
            scopes=None,
            client_cert_source_for_mtls=None,
            quota_project_id=None,
            client_info=transports.base.DEFAULT_CLIENT_INFO,
            always_use_jwt_access=True,
            api_audience="https://language.googleapis.com",
        )


@pytest.mark.parametrize(
    "client_class,transport_class,transport_name,use_client_cert_env",
    [
        (
            CssProductsServiceClient,
            transports.CssProductsServiceGrpcTransport,
            "grpc",
            "true",
        ),
        (
            CssProductsServiceAsyncClient,
            transports.CssProductsServiceGrpcAsyncIOTransport,
            "grpc_asyncio",
            "true",
        ),
        (
            CssProductsServiceClient,
            transports.CssProductsServiceGrpcTransport,
            "grpc",
            "false",
        ),
        (
            CssProductsServiceAsyncClient,
            transports.CssProductsServiceGrpcAsyncIOTransport,
            "grpc_asyncio",
            "false",
        ),
        (
            CssProductsServiceClient,
            transports.CssProductsServiceRestTransport,
            "rest",
            "true",
        ),
        (
            CssProductsServiceClient,
            transports.CssProductsServiceRestTransport,
            "rest",
            "false",
        ),
    ],
)
@mock.patch.object(
    CssProductsServiceClient,
    "_DEFAULT_ENDPOINT_TEMPLATE",
    modify_default_endpoint_template(CssProductsServiceClient),
)
@mock.patch.object(
    CssProductsServiceAsyncClient,
    "_DEFAULT_ENDPOINT_TEMPLATE",
    modify_default_endpoint_template(CssProductsServiceAsyncClient),
)
@mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "auto"})
def test_css_products_service_client_mtls_env_auto(
    client_class, transport_class, transport_name, use_client_cert_env
):
    # This tests the endpoint autoswitch behavior. Endpoint is autoswitched to the default
    # mtls endpoint, if GOOGLE_API_USE_CLIENT_CERTIFICATE is "true" and client cert exists.

    # Check the case client_cert_source is provided. Whether client cert is used depends on
    # GOOGLE_API_USE_CLIENT_CERTIFICATE value.
    with mock.patch.dict(
        os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": use_client_cert_env}
    ):
        options = client_options.ClientOptions(
            client_cert_source=client_cert_source_callback
        )
        with mock.patch.object(transport_class, "__init__") as patched:
            patched.return_value = None
            client = client_class(client_options=options, transport=transport_name)

            if use_client_cert_env == "false":
                expected_client_cert_source = None
                expected_host = client._DEFAULT_ENDPOINT_TEMPLATE.format(
                    UNIVERSE_DOMAIN=client._DEFAULT_UNIVERSE
                )
            else:
                expected_client_cert_source = client_cert_source_callback
                expected_host = client.DEFAULT_MTLS_ENDPOINT

            patched.assert_called_once_with(
                credentials=None,
                credentials_file=None,
                host=expected_host,
                scopes=None,
                client_cert_source_for_mtls=expected_client_cert_source,
                quota_project_id=None,
                client_info=transports.base.DEFAULT_CLIENT_INFO,
                always_use_jwt_access=True,
                api_audience=None,
            )

    # Check the case ADC client cert is provided. Whether client cert is used depends on
    # GOOGLE_API_USE_CLIENT_CERTIFICATE value.
    with mock.patch.dict(
        os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": use_client_cert_env}
    ):
        with mock.patch.object(transport_class, "__init__") as patched:
            with mock.patch(
                "google.auth.transport.mtls.has_default_client_cert_source",
                return_value=True,
            ):
                with mock.patch(
                    "google.auth.transport.mtls.default_client_cert_source",
                    return_value=client_cert_source_callback,
                ):
                    if use_client_cert_env == "false":
                        expected_host = client._DEFAULT_ENDPOINT_TEMPLATE.format(
                            UNIVERSE_DOMAIN=client._DEFAULT_UNIVERSE
                        )
                        expected_client_cert_source = None
                    else:
                        expected_host = client.DEFAULT_MTLS_ENDPOINT
                        expected_client_cert_source = client_cert_source_callback

                    patched.return_value = None
                    client = client_class(transport=transport_name)
                    patched.assert_called_once_with(
                        credentials=None,
                        credentials_file=None,
                        host=expected_host,
                        scopes=None,
                        client_cert_source_for_mtls=expected_client_cert_source,
                        quota_project_id=None,
                        client_info=transports.base.DEFAULT_CLIENT_INFO,
                        always_use_jwt_access=True,
                        api_audience=None,
                    )

    # Check the case client_cert_source and ADC client cert are not provided.
    with mock.patch.dict(
        os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": use_client_cert_env}
    ):
        with mock.patch.object(transport_class, "__init__") as patched:
            with mock.patch(
                "google.auth.transport.mtls.has_default_client_cert_source",
                return_value=False,
            ):
                patched.return_value = None
                client = client_class(transport=transport_name)
                patched.assert_called_once_with(
                    credentials=None,
                    credentials_file=None,
                    host=client._DEFAULT_ENDPOINT_TEMPLATE.format(
                        UNIVERSE_DOMAIN=client._DEFAULT_UNIVERSE
                    ),
                    scopes=None,
                    client_cert_source_for_mtls=None,
                    quota_project_id=None,
                    client_info=transports.base.DEFAULT_CLIENT_INFO,
                    always_use_jwt_access=True,
                    api_audience=None,
                )


@pytest.mark.parametrize(
    "client_class", [CssProductsServiceClient, CssProductsServiceAsyncClient]
)
@mock.patch.object(
    CssProductsServiceClient,
    "DEFAULT_ENDPOINT",
    modify_default_endpoint(CssProductsServiceClient),
)
@mock.patch.object(
    CssProductsServiceAsyncClient,
    "DEFAULT_ENDPOINT",
    modify_default_endpoint(CssProductsServiceAsyncClient),
)
def test_css_products_service_client_get_mtls_endpoint_and_cert_source(client_class):
    mock_client_cert_source = mock.Mock()

    # Test the case GOOGLE_API_USE_CLIENT_CERTIFICATE is "true".
    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "true"}):
        mock_api_endpoint = "foo"
        options = client_options.ClientOptions(
            client_cert_source=mock_client_cert_source, api_endpoint=mock_api_endpoint
        )
        api_endpoint, cert_source = client_class.get_mtls_endpoint_and_cert_source(
            options
        )
        assert api_endpoint == mock_api_endpoint
        assert cert_source == mock_client_cert_source

    # Test the case GOOGLE_API_USE_CLIENT_CERTIFICATE is "false".
    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "false"}):
        mock_client_cert_source = mock.Mock()
        mock_api_endpoint = "foo"
        options = client_options.ClientOptions(
            client_cert_source=mock_client_cert_source, api_endpoint=mock_api_endpoint
        )
        api_endpoint, cert_source = client_class.get_mtls_endpoint_and_cert_source(
            options
        )
        assert api_endpoint == mock_api_endpoint
        assert cert_source is None

    # Test the case GOOGLE_API_USE_MTLS_ENDPOINT is "never".
    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "never"}):
        api_endpoint, cert_source = client_class.get_mtls_endpoint_and_cert_source()
        assert api_endpoint == client_class.DEFAULT_ENDPOINT
        assert cert_source is None

    # Test the case GOOGLE_API_USE_MTLS_ENDPOINT is "always".
    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "always"}):
        api_endpoint, cert_source = client_class.get_mtls_endpoint_and_cert_source()
        assert api_endpoint == client_class.DEFAULT_MTLS_ENDPOINT
        assert cert_source is None

    # Test the case GOOGLE_API_USE_MTLS_ENDPOINT is "auto" and default cert doesn't exist.
    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "true"}):
        with mock.patch(
            "google.auth.transport.mtls.has_default_client_cert_source",
            return_value=False,
        ):
            api_endpoint, cert_source = client_class.get_mtls_endpoint_and_cert_source()
            assert api_endpoint == client_class.DEFAULT_ENDPOINT
            assert cert_source is None

    # Test the case GOOGLE_API_USE_MTLS_ENDPOINT is "auto" and default cert exists.
    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "true"}):
        with mock.patch(
            "google.auth.transport.mtls.has_default_client_cert_source",
            return_value=True,
        ):
            with mock.patch(
                "google.auth.transport.mtls.default_client_cert_source",
                return_value=mock_client_cert_source,
            ):
                (
                    api_endpoint,
                    cert_source,
                ) = client_class.get_mtls_endpoint_and_cert_source()
                assert api_endpoint == client_class.DEFAULT_MTLS_ENDPOINT
                assert cert_source == mock_client_cert_source

    # Check the case api_endpoint is not provided and GOOGLE_API_USE_MTLS_ENDPOINT has
    # unsupported value.
    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "Unsupported"}):
        with pytest.raises(MutualTLSChannelError) as excinfo:
            client_class.get_mtls_endpoint_and_cert_source()

        assert (
            str(excinfo.value)
            == "Environment variable `GOOGLE_API_USE_MTLS_ENDPOINT` must be `never`, `auto` or `always`"
        )

    # Check the case GOOGLE_API_USE_CLIENT_CERTIFICATE has unsupported value.
    with mock.patch.dict(
        os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "Unsupported"}
    ):
        with pytest.raises(ValueError) as excinfo:
            client_class.get_mtls_endpoint_and_cert_source()

        assert (
            str(excinfo.value)
            == "Environment variable `GOOGLE_API_USE_CLIENT_CERTIFICATE` must be either `true` or `false`"
        )


@pytest.mark.parametrize(
    "client_class", [CssProductsServiceClient, CssProductsServiceAsyncClient]
)
@mock.patch.object(
    CssProductsServiceClient,
    "_DEFAULT_ENDPOINT_TEMPLATE",
    modify_default_endpoint_template(CssProductsServiceClient),
)
@mock.patch.object(
    CssProductsServiceAsyncClient,
    "_DEFAULT_ENDPOINT_TEMPLATE",
    modify_default_endpoint_template(CssProductsServiceAsyncClient),
)
def test_css_products_service_client_client_api_endpoint(client_class):
    mock_client_cert_source = client_cert_source_callback
    api_override = "foo.com"
    default_universe = CssProductsServiceClient._DEFAULT_UNIVERSE
    default_endpoint = CssProductsServiceClient._DEFAULT_ENDPOINT_TEMPLATE.format(
        UNIVERSE_DOMAIN=default_universe
    )
    mock_universe = "bar.com"
    mock_endpoint = CssProductsServiceClient._DEFAULT_ENDPOINT_TEMPLATE.format(
        UNIVERSE_DOMAIN=mock_universe
    )

    # If ClientOptions.api_endpoint is set and GOOGLE_API_USE_CLIENT_CERTIFICATE="true",
    # use ClientOptions.api_endpoint as the api endpoint regardless.
    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "true"}):
        with mock.patch(
            "google.auth.transport.requests.AuthorizedSession.configure_mtls_channel"
        ):
            options = client_options.ClientOptions(
                client_cert_source=mock_client_cert_source, api_endpoint=api_override
            )
            client = client_class(
                client_options=options,
                credentials=ga_credentials.AnonymousCredentials(),
            )
            assert client.api_endpoint == api_override

    # If ClientOptions.api_endpoint is not set and GOOGLE_API_USE_MTLS_ENDPOINT="never",
    # use the _DEFAULT_ENDPOINT_TEMPLATE populated with GDU as the api endpoint.
    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "never"}):
        client = client_class(credentials=ga_credentials.AnonymousCredentials())
        assert client.api_endpoint == default_endpoint

    # If ClientOptions.api_endpoint is not set and GOOGLE_API_USE_MTLS_ENDPOINT="always",
    # use the DEFAULT_MTLS_ENDPOINT as the api endpoint.
    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "always"}):
        client = client_class(credentials=ga_credentials.AnonymousCredentials())
        assert client.api_endpoint == client_class.DEFAULT_MTLS_ENDPOINT

    # If ClientOptions.api_endpoint is not set, GOOGLE_API_USE_MTLS_ENDPOINT="auto" (default),
    # GOOGLE_API_USE_CLIENT_CERTIFICATE="false" (default), default cert source doesn't exist,
    # and ClientOptions.universe_domain="bar.com",
    # use the _DEFAULT_ENDPOINT_TEMPLATE populated with universe domain as the api endpoint.
    options = client_options.ClientOptions()
    universe_exists = hasattr(options, "universe_domain")
    if universe_exists:
        options = client_options.ClientOptions(universe_domain=mock_universe)
        client = client_class(
            client_options=options, credentials=ga_credentials.AnonymousCredentials()
        )
    else:
        client = client_class(
            client_options=options, credentials=ga_credentials.AnonymousCredentials()
        )
    assert client.api_endpoint == (
        mock_endpoint if universe_exists else default_endpoint
    )
    assert client.universe_domain == (
        mock_universe if universe_exists else default_universe
    )

    # If ClientOptions does not have a universe domain attribute and GOOGLE_API_USE_MTLS_ENDPOINT="never",
    # use the _DEFAULT_ENDPOINT_TEMPLATE populated with GDU as the api endpoint.
    options = client_options.ClientOptions()
    if hasattr(options, "universe_domain"):
        delattr(options, "universe_domain")
    with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "never"}):
        client = client_class(
            client_options=options, credentials=ga_credentials.AnonymousCredentials()
        )
        assert client.api_endpoint == default_endpoint


@pytest.mark.parametrize(
    "client_class,transport_class,transport_name",
    [
        (CssProductsServiceClient, transports.CssProductsServiceGrpcTransport, "grpc"),
        (
            CssProductsServiceAsyncClient,
            transports.CssProductsServiceGrpcAsyncIOTransport,
            "grpc_asyncio",
        ),
        (CssProductsServiceClient, transports.CssProductsServiceRestTransport, "rest"),
    ],
)
def test_css_products_service_client_client_options_scopes(
    client_class, transport_class, transport_name
):
    # Check the case scopes are provided.
    options = client_options.ClientOptions(
        scopes=["1", "2"],
    )
    with mock.patch.object(transport_class, "__init__") as patched:
        patched.return_value = None
        client = client_class(client_options=options, transport=transport_name)
        patched.assert_called_once_with(
            credentials=None,
            credentials_file=None,
            host=client._DEFAULT_ENDPOINT_TEMPLATE.format(
                UNIVERSE_DOMAIN=client._DEFAULT_UNIVERSE
            ),
            scopes=["1", "2"],
            client_cert_source_for_mtls=None,
            quota_project_id=None,
            client_info=transports.base.DEFAULT_CLIENT_INFO,
            always_use_jwt_access=True,
            api_audience=None,
        )


@pytest.mark.parametrize(
    "client_class,transport_class,transport_name,grpc_helpers",
    [
        (
            CssProductsServiceClient,
            transports.CssProductsServiceGrpcTransport,
            "grpc",
            grpc_helpers,
        ),
        (
            CssProductsServiceAsyncClient,
            transports.CssProductsServiceGrpcAsyncIOTransport,
            "grpc_asyncio",
            grpc_helpers_async,
        ),
        (
            CssProductsServiceClient,
            transports.CssProductsServiceRestTransport,
            "rest",
            None,
        ),
    ],
)
def test_css_products_service_client_client_options_credentials_file(
    client_class, transport_class, transport_name, grpc_helpers
):
    # Check the case credentials file is provided.
    options = client_options.ClientOptions(credentials_file="credentials.json")

    with mock.patch.object(transport_class, "__init__") as patched:
        patched.return_value = None
        client = client_class(client_options=options, transport=transport_name)
        patched.assert_called_once_with(
            credentials=None,
            credentials_file="credentials.json",
            host=client._DEFAULT_ENDPOINT_TEMPLATE.format(
                UNIVERSE_DOMAIN=client._DEFAULT_UNIVERSE
            ),
            scopes=None,
            client_cert_source_for_mtls=None,
            quota_project_id=None,
            client_info=transports.base.DEFAULT_CLIENT_INFO,
            always_use_jwt_access=True,
            api_audience=None,
        )


def test_css_products_service_client_client_options_from_dict():
    with mock.patch(
        "google.shopping.css_v1.services.css_products_service.transports.CssProductsServiceGrpcTransport.__init__"
    ) as grpc_transport:
        grpc_transport.return_value = None
        client = CssProductsServiceClient(
            client_options={"api_endpoint": "squid.clam.whelk"}
        )
        grpc_transport.assert_called_once_with(
            credentials=None,
            credentials_file=None,
            host="squid.clam.whelk",
            scopes=None,
            client_cert_source_for_mtls=None,
            quota_project_id=None,
            client_info=transports.base.DEFAULT_CLIENT_INFO,
            always_use_jwt_access=True,
            api_audience=None,
        )


@pytest.mark.parametrize(
    "client_class,transport_class,transport_name,grpc_helpers",
    [
        (
            CssProductsServiceClient,
            transports.CssProductsServiceGrpcTransport,
            "grpc",
            grpc_helpers,
        ),
        (
            CssProductsServiceAsyncClient,
            transports.CssProductsServiceGrpcAsyncIOTransport,
            "grpc_asyncio",
            grpc_helpers_async,
        ),
    ],
)
def test_css_products_service_client_create_channel_credentials_file(
    client_class, transport_class, transport_name, grpc_helpers
):
    # Check the case credentials file is provided.
    options = client_options.ClientOptions(credentials_file="credentials.json")

    with mock.patch.object(transport_class, "__init__") as patched:
        patched.return_value = None
        client = client_class(client_options=options, transport=transport_name)
        patched.assert_called_once_with(
            credentials=None,
            credentials_file="credentials.json",
            host=client._DEFAULT_ENDPOINT_TEMPLATE.format(
                UNIVERSE_DOMAIN=client._DEFAULT_UNIVERSE
            ),
            scopes=None,
            client_cert_source_for_mtls=None,
            quota_project_id=None,
            client_info=transports.base.DEFAULT_CLIENT_INFO,
            always_use_jwt_access=True,
            api_audience=None,
        )

    # test that the credentials from file are saved and used as the credentials.
    with mock.patch.object(
        google.auth, "load_credentials_from_file", autospec=True
    ) as load_creds, mock.patch.object(
        google.auth, "default", autospec=True
    ) as adc, mock.patch.object(
        grpc_helpers, "create_channel"
    ) as create_channel:
        creds = ga_credentials.AnonymousCredentials()
        file_creds = ga_credentials.AnonymousCredentials()
        load_creds.return_value = (file_creds, None)
        adc.return_value = (creds, None)
        client = client_class(client_options=options, transport=transport_name)
        create_channel.assert_called_with(
            "css.googleapis.com:443",
            credentials=file_creds,
            credentials_file=None,
            quota_project_id=None,
            default_scopes=("https://www.googleapis.com/auth/content",),
            scopes=None,
            default_host="css.googleapis.com",
            ssl_credentials=None,
            options=[
                ("grpc.max_send_message_length", -1),
                ("grpc.max_receive_message_length", -1),
            ],
        )


@pytest.mark.parametrize(
    "request_type",
    [
        css_products.GetCssProductRequest,
        dict,
    ],
)
def test_get_css_product(request_type, transport: str = "grpc"):
    client = CssProductsServiceClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Everything is optional in proto3 as far as the runtime is concerned,
    # and we are mocking out the actual API, so just send an empty request.
    request = request_type()

    # Mock the actual call within the gRPC stub, and fake the request.
    with mock.patch.object(type(client.transport.get_css_product), "__call__") as call:
        # Designate an appropriate return value for the call.
        call.return_value = css_products.CssProduct(
            name="name_value",
            raw_provided_id="raw_provided_id_value",
            content_language="content_language_value",
            feed_label="feed_label_value",
        )
        response = client.get_css_product(request)

        # Establish that the underlying gRPC stub method was called.
        assert len(call.mock_calls) == 1
        _, args, _ = call.mock_calls[0]
        request = css_products.GetCssProductRequest()
        assert args[0] == request

    # Establish that the response is the type that we expect.
    assert isinstance(response, css_products.CssProduct)
    assert response.name == "name_value"
    assert response.raw_provided_id == "raw_provided_id_value"
    assert response.content_language == "content_language_value"
    assert response.feed_label == "feed_label_value"


def test_get_css_product_empty_call():
    # This test is a coverage failsafe to make sure that totally empty calls,
    # i.e. request == None and no flattened fields passed, work.
    client = CssProductsServiceClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="grpc",
    )

    # Mock the actual call within the gRPC stub, and fake the request.
    with mock.patch.object(type(client.transport.get_css_product), "__call__") as call:
        call.return_value.name = (
            "foo"  # operation_request.operation in compute client(s) expect a string.
        )
        client.get_css_product()
        call.assert_called()
        _, args, _ = call.mock_calls[0]
        assert args[0] == css_products.GetCssProductRequest()


def test_get_css_product_non_empty_request_with_auto_populated_field():
    # This test is a coverage failsafe to make sure that UUID4 fields are
    # automatically populated, according to AIP-4235, with non-empty requests.
    client = CssProductsServiceClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="grpc",
    )

    # Populate all string fields in the request which are not UUID4
    # since we want to check that UUID4 are populated automatically
    # if they meet the requirements of AIP 4235.
    request = css_products.GetCssProductRequest(
        name="name_value",
    )

    # Mock the actual call within the gRPC stub, and fake the request.
    with mock.patch.object(type(client.transport.get_css_product), "__call__") as call:
        call.return_value.name = (
            "foo"  # operation_request.operation in compute client(s) expect a string.
        )
        client.get_css_product(request=request)
        call.assert_called()
        _, args, _ = call.mock_calls[0]
        assert args[0] == css_products.GetCssProductRequest(
            name="name_value",
        )


def test_get_css_product_use_cached_wrapped_rpc():
    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
    # instead of constructing them on each call
    with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
        client = CssProductsServiceClient(
            credentials=ga_credentials.AnonymousCredentials(),
            transport="grpc",
        )

        # Should wrap all calls on client creation
        assert wrapper_fn.call_count > 0
        wrapper_fn.reset_mock()

        # Ensure method has been cached
        assert client._transport.get_css_product in client._transport._wrapped_methods

        # Replace cached wrapped function with mock
        mock_rpc = mock.Mock()
        mock_rpc.return_value.name = (
            "foo"  # operation_request.operation in compute client(s) expect a string.
        )
        client._transport._wrapped_methods[client._transport.get_css_product] = mock_rpc
        request = {}
        client.get_css_product(request)

        # Establish that the underlying gRPC stub method was called.
        assert mock_rpc.call_count == 1

        client.get_css_product(request)

        # Establish that a new wrapper was not created for this call
        assert wrapper_fn.call_count == 0
        assert mock_rpc.call_count == 2


@pytest.mark.asyncio
async def test_get_css_product_empty_call_async():
    # This test is a coverage failsafe to make sure that totally empty calls,
    # i.e. request == None and no flattened fields passed, work.
    client = CssProductsServiceAsyncClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="grpc_asyncio",
    )

    # Mock the actual call within the gRPC stub, and fake the request.
    with mock.patch.object(type(client.transport.get_css_product), "__call__") as call:
        # Designate an appropriate return value for the call.
        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
            css_products.CssProduct(
                name="name_value",
                raw_provided_id="raw_provided_id_value",
                content_language="content_language_value",
                feed_label="feed_label_value",
            )
        )
        response = await client.get_css_product()
        call.assert_called()
        _, args, _ = call.mock_calls[0]
        assert args[0] == css_products.GetCssProductRequest()


@pytest.mark.asyncio
async def test_get_css_product_async_use_cached_wrapped_rpc(
    transport: str = "grpc_asyncio",
):
    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
    # instead of constructing them on each call
    with mock.patch("google.api_core.gapic_v1.method_async.wrap_method") as wrapper_fn:
        client = CssProductsServiceAsyncClient(
            credentials=ga_credentials.AnonymousCredentials(),
            transport=transport,
        )

        # Should wrap all calls on client creation
        assert wrapper_fn.call_count > 0
        wrapper_fn.reset_mock()

        # Ensure method has been cached
        assert (
            client._client._transport.get_css_product
            in client._client._transport._wrapped_methods
        )

        # Replace cached wrapped function with mock
        mock_object = mock.AsyncMock()
        client._client._transport._wrapped_methods[
            client._client._transport.get_css_product
        ] = mock_object

        request = {}
        await client.get_css_product(request)

        # Establish that the underlying gRPC stub method was called.
        assert mock_object.call_count == 1

        await client.get_css_product(request)

        # Establish that a new wrapper was not created for this call
        assert wrapper_fn.call_count == 0
        assert mock_object.call_count == 2


@pytest.mark.asyncio
async def test_get_css_product_async(
    transport: str = "grpc_asyncio", request_type=css_products.GetCssProductRequest
):
    client = CssProductsServiceAsyncClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Everything is optional in proto3 as far as the runtime is concerned,
    # and we are mocking out the actual API, so just send an empty request.
    request = request_type()

    # Mock the actual call within the gRPC stub, and fake the request.
    with mock.patch.object(type(client.transport.get_css_product), "__call__") as call:
        # Designate an appropriate return value for the call.
        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
            css_products.CssProduct(
                name="name_value",
                raw_provided_id="raw_provided_id_value",
                content_language="content_language_value",
                feed_label="feed_label_value",
            )
        )
        response = await client.get_css_product(request)

        # Establish that the underlying gRPC stub method was called.
        assert len(call.mock_calls)
        _, args, _ = call.mock_calls[0]
        request = css_products.GetCssProductRequest()
        assert args[0] == request

    # Establish that the response is the type that we expect.
    assert isinstance(response, css_products.CssProduct)
    assert response.name == "name_value"
    assert response.raw_provided_id == "raw_provided_id_value"
    assert response.content_language == "content_language_value"
    assert response.feed_label == "feed_label_value"


@pytest.mark.asyncio
async def test_get_css_product_async_from_dict():
    await test_get_css_product_async(request_type=dict)


def test_get_css_product_field_headers():
    client = CssProductsServiceClient(
        credentials=ga_credentials.AnonymousCredentials(),
    )

    # Any value that is part of the HTTP/1.1 URI should be sent as
    # a field header. Set these to a non-empty value.
    request = css_products.GetCssProductRequest()

    request.name = "name_value"

    # Mock the actual call within the gRPC stub, and fake the request.
    with mock.patch.object(type(client.transport.get_css_product), "__call__") as call:
        call.return_value = css_products.CssProduct()
        client.get_css_product(request)

        # Establish that the underlying gRPC stub method was called.
        assert len(call.mock_calls) == 1
        _, args, _ = call.mock_calls[0]
        assert args[0] == request

    # Establish that the field header was sent.
    _, _, kw = call.mock_calls[0]
    assert (
        "x-goog-request-params",
        "name=name_value",
    ) in kw["metadata"]


@pytest.mark.asyncio
async def test_get_css_product_field_headers_async():
    client = CssProductsServiceAsyncClient(
        credentials=ga_credentials.AnonymousCredentials(),
    )

    # Any value that is part of the HTTP/1.1 URI should be sent as
    # a field header. Set these to a non-empty value.
    request = css_products.GetCssProductRequest()

    request.name = "name_value"

    # Mock the actual call within the gRPC stub, and fake the request.
    with mock.patch.object(type(client.transport.get_css_product), "__call__") as call:
        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
            css_products.CssProduct()
        )
        await client.get_css_product(request)

        # Establish that the underlying gRPC stub method was called.
        assert len(call.mock_calls)
        _, args, _ = call.mock_calls[0]
        assert args[0] == request

    # Establish that the field header was sent.
    _, _, kw = call.mock_calls[0]
    assert (
        "x-goog-request-params",
        "name=name_value",
    ) in kw["metadata"]


def test_get_css_product_flattened():
    client = CssProductsServiceClient(
        credentials=ga_credentials.AnonymousCredentials(),
    )

    # Mock the actual call within the gRPC stub, and fake the request.
    with mock.patch.object(type(client.transport.get_css_product), "__call__") as call:
        # Designate an appropriate return value for the call.
        call.return_value = css_products.CssProduct()
        # Call the method with a truthy value for each flattened field,
        # using the keyword arguments to the method.
        client.get_css_product(
            name="name_value",
        )

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(call.mock_calls) == 1
        _, args, _ = call.mock_calls[0]
        arg = args[0].name
        mock_val = "name_value"
        assert arg == mock_val


def test_get_css_product_flattened_error():
    client = CssProductsServiceClient(
        credentials=ga_credentials.AnonymousCredentials(),
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.get_css_product(
            css_products.GetCssProductRequest(),
            name="name_value",
        )


@pytest.mark.asyncio
async def test_get_css_product_flattened_async():
    client = CssProductsServiceAsyncClient(
        credentials=ga_credentials.AnonymousCredentials(),
    )

    # Mock the actual call within the gRPC stub, and fake the request.
    with mock.patch.object(type(client.transport.get_css_product), "__call__") as call:
        # Designate an appropriate return value for the call.
        call.return_value = css_products.CssProduct()

        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
            css_products.CssProduct()
        )
        # Call the method with a truthy value for each flattened field,
        # using the keyword arguments to the method.
        response = await client.get_css_product(
            name="name_value",
        )

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(call.mock_calls)
        _, args, _ = call.mock_calls[0]
        arg = args[0].name
        mock_val = "name_value"
        assert arg == mock_val


@pytest.mark.asyncio
async def test_get_css_product_flattened_error_async():
    client = CssProductsServiceAsyncClient(
        credentials=ga_credentials.AnonymousCredentials(),
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        await client.get_css_product(
            css_products.GetCssProductRequest(),
            name="name_value",
        )


@pytest.mark.parametrize(
    "request_type",
    [
        css_products.ListCssProductsRequest,
        dict,
    ],
)
def test_list_css_products(request_type, transport: str = "grpc"):
    client = CssProductsServiceClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Everything is optional in proto3 as far as the runtime is concerned,
    # and we are mocking out the actual API, so just send an empty request.
    request = request_type()

    # Mock the actual call within the gRPC stub, and fake the request.
    with mock.patch.object(
        type(client.transport.list_css_products), "__call__"
    ) as call:
        # Designate an appropriate return value for the call.
        call.return_value = css_products.ListCssProductsResponse(
            next_page_token="next_page_token_value",
        )
        response = client.list_css_products(request)

        # Establish that the underlying gRPC stub method was called.
        assert len(call.mock_calls) == 1
        _, args, _ = call.mock_calls[0]
        request = css_products.ListCssProductsRequest()
        assert args[0] == request

    # Establish that the response is the type that we expect.
    assert isinstance(response, pagers.ListCssProductsPager)
    assert response.next_page_token == "next_page_token_value"


def test_list_css_products_empty_call():
    # This test is a coverage failsafe to make sure that totally empty calls,
    # i.e. request == None and no flattened fields passed, work.
    client = CssProductsServiceClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="grpc",
    )

    # Mock the actual call within the gRPC stub, and fake the request.
    with mock.patch.object(
        type(client.transport.list_css_products), "__call__"
    ) as call:
        call.return_value.name = (
            "foo"  # operation_request.operation in compute client(s) expect a string.
        )
        client.list_css_products()
        call.assert_called()
        _, args, _ = call.mock_calls[0]
        assert args[0] == css_products.ListCssProductsRequest()


def test_list_css_products_non_empty_request_with_auto_populated_field():
    # This test is a coverage failsafe to make sure that UUID4 fields are
    # automatically populated, according to AIP-4235, with non-empty requests.
    client = CssProductsServiceClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="grpc",
    )

    # Populate all string fields in the request which are not UUID4
    # since we want to check that UUID4 are populated automatically
    # if they meet the requirements of AIP 4235.
    request = css_products.ListCssProductsRequest(
        parent="parent_value",
        page_token="page_token_value",
    )

    # Mock the actual call within the gRPC stub, and fake the request.
    with mock.patch.object(
        type(client.transport.list_css_products), "__call__"
    ) as call:
        call.return_value.name = (
            "foo"  # operation_request.operation in compute client(s) expect a string.
        )
        client.list_css_products(request=request)
        call.assert_called()
        _, args, _ = call.mock_calls[0]
        assert args[0] == css_products.ListCssProductsRequest(
            parent="parent_value",
            page_token="page_token_value",
        )


def test_list_css_products_use_cached_wrapped_rpc():
    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
    # instead of constructing them on each call
    with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
        client = CssProductsServiceClient(
            credentials=ga_credentials.AnonymousCredentials(),
            transport="grpc",
        )

        # Should wrap all calls on client creation
        assert wrapper_fn.call_count > 0
        wrapper_fn.reset_mock()

        # Ensure method has been cached
        assert client._transport.list_css_products in client._transport._wrapped_methods

        # Replace cached wrapped function with mock
        mock_rpc = mock.Mock()
        mock_rpc.return_value.name = (
            "foo"  # operation_request.operation in compute client(s) expect a string.
        )
        client._transport._wrapped_methods[
            client._transport.list_css_products
        ] = mock_rpc
        request = {}
        client.list_css_products(request)

        # Establish that the underlying gRPC stub method was called.
        assert mock_rpc.call_count == 1

        client.list_css_products(request)

        # Establish that a new wrapper was not created for this call
        assert wrapper_fn.call_count == 0
        assert mock_rpc.call_count == 2


@pytest.mark.asyncio
async def test_list_css_products_empty_call_async():
    # This test is a coverage failsafe to make sure that totally empty calls,
    # i.e. request == None and no flattened fields passed, work.
    client = CssProductsServiceAsyncClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="grpc_asyncio",
    )

    # Mock the actual call within the gRPC stub, and fake the request.
    with mock.patch.object(
        type(client.transport.list_css_products), "__call__"
    ) as call:
        # Designate an appropriate return value for the call.
        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
            css_products.ListCssProductsResponse(
                next_page_token="next_page_token_value",
            )
        )
        response = await client.list_css_products()
        call.assert_called()
        _, args, _ = call.mock_calls[0]
        assert args[0] == css_products.ListCssProductsRequest()


@pytest.mark.asyncio
async def test_list_css_products_async_use_cached_wrapped_rpc(
    transport: str = "grpc_asyncio",
):
    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
    # instead of constructing them on each call
    with mock.patch("google.api_core.gapic_v1.method_async.wrap_method") as wrapper_fn:
        client = CssProductsServiceAsyncClient(
            credentials=ga_credentials.AnonymousCredentials(),
            transport=transport,
        )

        # Should wrap all calls on client creation
        assert wrapper_fn.call_count > 0
        wrapper_fn.reset_mock()

        # Ensure method has been cached
        assert (
            client._client._transport.list_css_products
            in client._client._transport._wrapped_methods
        )

        # Replace cached wrapped function with mock
        mock_object = mock.AsyncMock()
        client._client._transport._wrapped_methods[
            client._client._transport.list_css_products
        ] = mock_object

        request = {}
        await client.list_css_products(request)

        # Establish that the underlying gRPC stub method was called.
        assert mock_object.call_count == 1

        await client.list_css_products(request)

        # Establish that a new wrapper was not created for this call
        assert wrapper_fn.call_count == 0
        assert mock_object.call_count == 2


@pytest.mark.asyncio
async def test_list_css_products_async(
    transport: str = "grpc_asyncio", request_type=css_products.ListCssProductsRequest
):
    client = CssProductsServiceAsyncClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Everything is optional in proto3 as far as the runtime is concerned,
    # and we are mocking out the actual API, so just send an empty request.
    request = request_type()

    # Mock the actual call within the gRPC stub, and fake the request.
    with mock.patch.object(
        type(client.transport.list_css_products), "__call__"
    ) as call:
        # Designate an appropriate return value for the call.
        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
            css_products.ListCssProductsResponse(
                next_page_token="next_page_token_value",
            )
        )
        response = await client.list_css_products(request)

        # Establish that the underlying gRPC stub method was called.
        assert len(call.mock_calls)
        _, args, _ = call.mock_calls[0]
        request = css_products.ListCssProductsRequest()
        assert args[0] == request

    # Establish that the response is the type that we expect.
    assert isinstance(response, pagers.ListCssProductsAsyncPager)
    assert response.next_page_token == "next_page_token_value"


@pytest.mark.asyncio
async def test_list_css_products_async_from_dict():
    await test_list_css_products_async(request_type=dict)


def test_list_css_products_field_headers():
    client = CssProductsServiceClient(
        credentials=ga_credentials.AnonymousCredentials(),
    )

    # Any value that is part of the HTTP/1.1 URI should be sent as
    # a field header. Set these to a non-empty value.
    request = css_products.ListCssProductsRequest()

    request.parent = "parent_value"

    # Mock the actual call within the gRPC stub, and fake the request.
    with mock.patch.object(
        type(client.transport.list_css_products), "__call__"
    ) as call:
        call.return_value = css_products.ListCssProductsResponse()
        client.list_css_products(request)

        # Establish that the underlying gRPC stub method was called.
        assert len(call.mock_calls) == 1
        _, args, _ = call.mock_calls[0]
        assert args[0] == request

    # Establish that the field header was sent.
    _, _, kw = call.mock_calls[0]
    assert (
        "x-goog-request-params",
        "parent=parent_value",
    ) in kw["metadata"]


@pytest.mark.asyncio
async def test_list_css_products_field_headers_async():
    client = CssProductsServiceAsyncClient(
        credentials=ga_credentials.AnonymousCredentials(),
    )

    # Any value that is part of the HTTP/1.1 URI should be sent as
    # a field header. Set these to a non-empty value.
    request = css_products.ListCssProductsRequest()

    request.parent = "parent_value"

    # Mock the actual call within the gRPC stub, and fake the request.
    with mock.patch.object(
        type(client.transport.list_css_products), "__call__"
    ) as call:
        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
            css_products.ListCssProductsResponse()
        )
        await client.list_css_products(request)

        # Establish that the underlying gRPC stub method was called.
        assert len(call.mock_calls)
        _, args, _ = call.mock_calls[0]
        assert args[0] == request

    # Establish that the field header was sent.
    _, _, kw = call.mock_calls[0]
    assert (
        "x-goog-request-params",
        "parent=parent_value",
    ) in kw["metadata"]


def test_list_css_products_flattened():
    client = CssProductsServiceClient(
        credentials=ga_credentials.AnonymousCredentials(),
    )

    # Mock the actual call within the gRPC stub, and fake the request.
    with mock.patch.object(
        type(client.transport.list_css_products), "__call__"
    ) as call:
        # Designate an appropriate return value for the call.
        call.return_value = css_products.ListCssProductsResponse()
        # Call the method with a truthy value for each flattened field,
        # using the keyword arguments to the method.
        client.list_css_products(
            parent="parent_value",
        )

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(call.mock_calls) == 1
        _, args, _ = call.mock_calls[0]
        arg = args[0].parent
        mock_val = "parent_value"
        assert arg == mock_val


def test_list_css_products_flattened_error():
    client = CssProductsServiceClient(
        credentials=ga_credentials.AnonymousCredentials(),
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.list_css_products(
            css_products.ListCssProductsRequest(),
            parent="parent_value",
        )


@pytest.mark.asyncio
async def test_list_css_products_flattened_async():
    client = CssProductsServiceAsyncClient(
        credentials=ga_credentials.AnonymousCredentials(),
    )

    # Mock the actual call within the gRPC stub, and fake the request.
    with mock.patch.object(
        type(client.transport.list_css_products), "__call__"
    ) as call:
        # Designate an appropriate return value for the call.
        call.return_value = css_products.ListCssProductsResponse()

        call.return_value = grpc_helpers_async.FakeUnaryUnaryCall(
            css_products.ListCssProductsResponse()
        )
        # Call the method with a truthy value for each flattened field,
        # using the keyword arguments to the method.
        response = await client.list_css_products(
            parent="parent_value",
        )

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(call.mock_calls)
        _, args, _ = call.mock_calls[0]
        arg = args[0].parent
        mock_val = "parent_value"
        assert arg == mock_val


@pytest.mark.asyncio
async def test_list_css_products_flattened_error_async():
    client = CssProductsServiceAsyncClient(
        credentials=ga_credentials.AnonymousCredentials(),
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        await client.list_css_products(
            css_products.ListCssProductsRequest(),
            parent="parent_value",
        )


def test_list_css_products_pager(transport_name: str = "grpc"):
    client = CssProductsServiceClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport_name,
    )

    # Mock the actual call within the gRPC stub, and fake the request.
    with mock.patch.object(
        type(client.transport.list_css_products), "__call__"
    ) as call:
        # Set the response to a series of pages.
        call.side_effect = (
            css_products.ListCssProductsResponse(
                css_products=[
                    css_products.CssProduct(),
                    css_products.CssProduct(),
                    css_products.CssProduct(),
                ],
                next_page_token="abc",
            ),
            css_products.ListCssProductsResponse(
                css_products=[],
                next_page_token="def",
            ),
            css_products.ListCssProductsResponse(
                css_products=[
                    css_products.CssProduct(),
                ],
                next_page_token="ghi",
            ),
            css_products.ListCssProductsResponse(
                css_products=[
                    css_products.CssProduct(),
                    css_products.CssProduct(),
                ],
            ),
            RuntimeError,
        )

        expected_metadata = ()
        expected_metadata = tuple(expected_metadata) + (
            gapic_v1.routing_header.to_grpc_metadata((("parent", ""),)),
        )
        pager = client.list_css_products(request={})

        assert pager._metadata == expected_metadata

        results = list(pager)
        assert len(results) == 6
        assert all(isinstance(i, css_products.CssProduct) for i in results)


def test_list_css_products_pages(transport_name: str = "grpc"):
    client = CssProductsServiceClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport_name,
    )

    # Mock the actual call within the gRPC stub, and fake the request.
    with mock.patch.object(
        type(client.transport.list_css_products), "__call__"
    ) as call:
        # Set the response to a series of pages.
        call.side_effect = (
            css_products.ListCssProductsResponse(
                css_products=[
                    css_products.CssProduct(),
                    css_products.CssProduct(),
                    css_products.CssProduct(),
                ],
                next_page_token="abc",
            ),
            css_products.ListCssProductsResponse(
                css_products=[],
                next_page_token="def",
            ),
            css_products.ListCssProductsResponse(
                css_products=[
                    css_products.CssProduct(),
                ],
                next_page_token="ghi",
            ),
            css_products.ListCssProductsResponse(
                css_products=[
                    css_products.CssProduct(),
                    css_products.CssProduct(),
                ],
            ),
            RuntimeError,
        )
        pages = list(client.list_css_products(request={}).pages)
        for page_, token in zip(pages, ["abc", "def", "ghi", ""]):
            assert page_.raw_page.next_page_token == token


@pytest.mark.asyncio
async def test_list_css_products_async_pager():
    client = CssProductsServiceAsyncClient(
        credentials=ga_credentials.AnonymousCredentials(),
    )

    # Mock the actual call within the gRPC stub, and fake the request.
    with mock.patch.object(
        type(client.transport.list_css_products),
        "__call__",
        new_callable=mock.AsyncMock,
    ) as call:
        # Set the response to a series of pages.
        call.side_effect = (
            css_products.ListCssProductsResponse(
                css_products=[
                    css_products.CssProduct(),
                    css_products.CssProduct(),
                    css_products.CssProduct(),
                ],
                next_page_token="abc",
            ),
            css_products.ListCssProductsResponse(
                css_products=[],
                next_page_token="def",
            ),
            css_products.ListCssProductsResponse(
                css_products=[
                    css_products.CssProduct(),
                ],
                next_page_token="ghi",
            ),
            css_products.ListCssProductsResponse(
                css_products=[
                    css_products.CssProduct(),
                    css_products.CssProduct(),
                ],
            ),
            RuntimeError,
        )
        async_pager = await client.list_css_products(
            request={},
        )
        assert async_pager.next_page_token == "abc"
        responses = []
        async for response in async_pager:  # pragma: no branch
            responses.append(response)

        assert len(responses) == 6
        assert all(isinstance(i, css_products.CssProduct) for i in responses)


@pytest.mark.asyncio
async def test_list_css_products_async_pages():
    client = CssProductsServiceAsyncClient(
        credentials=ga_credentials.AnonymousCredentials(),
    )

    # Mock the actual call within the gRPC stub, and fake the request.
    with mock.patch.object(
        type(client.transport.list_css_products),
        "__call__",
        new_callable=mock.AsyncMock,
    ) as call:
        # Set the response to a series of pages.
        call.side_effect = (
            css_products.ListCssProductsResponse(
                css_products=[
                    css_products.CssProduct(),
                    css_products.CssProduct(),
                    css_products.CssProduct(),
                ],
                next_page_token="abc",
            ),
            css_products.ListCssProductsResponse(
                css_products=[],
                next_page_token="def",
            ),
            css_products.ListCssProductsResponse(
                css_products=[
                    css_products.CssProduct(),
                ],
                next_page_token="ghi",
            ),
            css_products.ListCssProductsResponse(
                css_products=[
                    css_products.CssProduct(),
                    css_products.CssProduct(),
                ],
            ),
            RuntimeError,
        )
        pages = []
        # Workaround issue in python 3.9 related to code coverage by adding `# pragma: no branch`
        # See https://github.com/googleapis/gapic-generator-python/pull/1174#issuecomment-1025132372
        async for page_ in (  # pragma: no branch
            await client.list_css_products(request={})
        ).pages:
            pages.append(page_)
        for page_, token in zip(pages, ["abc", "def", "ghi", ""]):
            assert page_.raw_page.next_page_token == token


@pytest.mark.parametrize(
    "request_type",
    [
        css_products.GetCssProductRequest,
        dict,
    ],
)
def test_get_css_product_rest(request_type):
    client = CssProductsServiceClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # send a request that will satisfy transcoding
    request_init = {"name": "accounts/sample1/cssProducts/sample2"}
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = css_products.CssProduct(
            name="name_value",
            raw_provided_id="raw_provided_id_value",
            content_language="content_language_value",
            feed_label="feed_label_value",
        )

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        # Convert return value to protobuf type
        return_value = css_products.CssProduct.pb(return_value)
        json_return_value = json_format.MessageToJson(return_value)

        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value
        response = client.get_css_product(request)

    # Establish that the response is the type that we expect.
    assert isinstance(response, css_products.CssProduct)
    assert response.name == "name_value"
    assert response.raw_provided_id == "raw_provided_id_value"
    assert response.content_language == "content_language_value"
    assert response.feed_label == "feed_label_value"


def test_get_css_product_rest_use_cached_wrapped_rpc():
    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
    # instead of constructing them on each call
    with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
        client = CssProductsServiceClient(
            credentials=ga_credentials.AnonymousCredentials(),
            transport="rest",
        )

        # Should wrap all calls on client creation
        assert wrapper_fn.call_count > 0
        wrapper_fn.reset_mock()

        # Ensure method has been cached
        assert client._transport.get_css_product in client._transport._wrapped_methods

        # Replace cached wrapped function with mock
        mock_rpc = mock.Mock()
        mock_rpc.return_value.name = (
            "foo"  # operation_request.operation in compute client(s) expect a string.
        )
        client._transport._wrapped_methods[client._transport.get_css_product] = mock_rpc

        request = {}
        client.get_css_product(request)

        # Establish that the underlying gRPC stub method was called.
        assert mock_rpc.call_count == 1

        client.get_css_product(request)

        # Establish that a new wrapper was not created for this call
        assert wrapper_fn.call_count == 0
        assert mock_rpc.call_count == 2


def test_get_css_product_rest_required_fields(
    request_type=css_products.GetCssProductRequest,
):
    transport_class = transports.CssProductsServiceRestTransport

    request_init = {}
    request_init["name"] = ""
    request = request_type(**request_init)
    pb_request = request_type.pb(request)
    jsonified_request = json.loads(
        json_format.MessageToJson(pb_request, use_integers_for_enums=False)
    )

    # verify fields with default values are dropped

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).get_css_product._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with default values are now present

    jsonified_request["name"] = "name_value"

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).get_css_product._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with non-default values are left alone
    assert "name" in jsonified_request
    assert jsonified_request["name"] == "name_value"

    client = CssProductsServiceClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )
    request = request_type(**request_init)

    # Designate an appropriate value for the returned response.
    return_value = css_products.CssProduct()
    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # We need to mock transcode() because providing default values
        # for required fields will fail the real version if the http_options
        # expect actual values for those fields.
        with mock.patch.object(path_template, "transcode") as transcode:
            # A uri without fields and an empty body will force all the
            # request fields to show up in the query_params.
            pb_request = request_type.pb(request)
            transcode_result = {
                "uri": "v1/sample_method",
                "method": "get",
                "query_params": pb_request,
            }
            transcode.return_value = transcode_result

            response_value = Response()
            response_value.status_code = 200

            # Convert return value to protobuf type
            return_value = css_products.CssProduct.pb(return_value)
            json_return_value = json_format.MessageToJson(return_value)

            response_value._content = json_return_value.encode("UTF-8")
            req.return_value = response_value

            response = client.get_css_product(request)

            expected_params = [("$alt", "json;enum-encoding=int")]
            actual_params = req.call_args.kwargs["params"]
            assert expected_params == actual_params


def test_get_css_product_rest_unset_required_fields():
    transport = transports.CssProductsServiceRestTransport(
        credentials=ga_credentials.AnonymousCredentials
    )

    unset_fields = transport.get_css_product._get_unset_required_fields({})
    assert set(unset_fields) == (set(()) & set(("name",)))


@pytest.mark.parametrize("null_interceptor", [True, False])
def test_get_css_product_rest_interceptors(null_interceptor):
    transport = transports.CssProductsServiceRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
        interceptor=None
        if null_interceptor
        else transports.CssProductsServiceRestInterceptor(),
    )
    client = CssProductsServiceClient(transport=transport)
    with mock.patch.object(
        type(client.transport._session), "request"
    ) as req, mock.patch.object(
        path_template, "transcode"
    ) as transcode, mock.patch.object(
        transports.CssProductsServiceRestInterceptor, "post_get_css_product"
    ) as post, mock.patch.object(
        transports.CssProductsServiceRestInterceptor, "pre_get_css_product"
    ) as pre:
        pre.assert_not_called()
        post.assert_not_called()
        pb_message = css_products.GetCssProductRequest.pb(
            css_products.GetCssProductRequest()
        )
        transcode.return_value = {
            "method": "post",
            "uri": "my_uri",
            "body": pb_message,
            "query_params": pb_message,
        }

        req.return_value = Response()
        req.return_value.status_code = 200
        req.return_value.request = PreparedRequest()
        req.return_value._content = css_products.CssProduct.to_json(
            css_products.CssProduct()
        )

        request = css_products.GetCssProductRequest()
        metadata = [
            ("key", "val"),
            ("cephalopod", "squid"),
        ]
        pre.return_value = request, metadata
        post.return_value = css_products.CssProduct()

        client.get_css_product(
            request,
            metadata=[
                ("key", "val"),
                ("cephalopod", "squid"),
            ],
        )

        pre.assert_called_once()
        post.assert_called_once()


def test_get_css_product_rest_bad_request(
    transport: str = "rest", request_type=css_products.GetCssProductRequest
):
    client = CssProductsServiceClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # send a request that will satisfy transcoding
    request_init = {"name": "accounts/sample1/cssProducts/sample2"}
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a BadRequest error.
    with mock.patch.object(Session, "request") as req, pytest.raises(
        core_exceptions.BadRequest
    ):
        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 400
        response_value.request = Request()
        req.return_value = response_value
        client.get_css_product(request)


def test_get_css_product_rest_flattened():
    client = CssProductsServiceClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = css_products.CssProduct()

        # get arguments that satisfy an http rule for this method
        sample_request = {"name": "accounts/sample1/cssProducts/sample2"}

        # get truthy value for each flattened field
        mock_args = dict(
            name="name_value",
        )
        mock_args.update(sample_request)

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        # Convert return value to protobuf type
        return_value = css_products.CssProduct.pb(return_value)
        json_return_value = json_format.MessageToJson(return_value)
        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value

        client.get_css_product(**mock_args)

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(req.mock_calls) == 1
        _, args, _ = req.mock_calls[0]
        assert path_template.validate(
            "%s/v1/{name=accounts/*/cssProducts/*}" % client.transport._host, args[1]
        )


def test_get_css_product_rest_flattened_error(transport: str = "rest"):
    client = CssProductsServiceClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.get_css_product(
            css_products.GetCssProductRequest(),
            name="name_value",
        )


def test_get_css_product_rest_error():
    client = CssProductsServiceClient(
        credentials=ga_credentials.AnonymousCredentials(), transport="rest"
    )


@pytest.mark.parametrize(
    "request_type",
    [
        css_products.ListCssProductsRequest,
        dict,
    ],
)
def test_list_css_products_rest(request_type):
    client = CssProductsServiceClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # send a request that will satisfy transcoding
    request_init = {"parent": "accounts/sample1"}
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = css_products.ListCssProductsResponse(
            next_page_token="next_page_token_value",
        )

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        # Convert return value to protobuf type
        return_value = css_products.ListCssProductsResponse.pb(return_value)
        json_return_value = json_format.MessageToJson(return_value)

        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value
        response = client.list_css_products(request)

    # Establish that the response is the type that we expect.
    assert isinstance(response, pagers.ListCssProductsPager)
    assert response.next_page_token == "next_page_token_value"


def test_list_css_products_rest_use_cached_wrapped_rpc():
    # Clients should use _prep_wrapped_messages to create cached wrapped rpcs,
    # instead of constructing them on each call
    with mock.patch("google.api_core.gapic_v1.method.wrap_method") as wrapper_fn:
        client = CssProductsServiceClient(
            credentials=ga_credentials.AnonymousCredentials(),
            transport="rest",
        )

        # Should wrap all calls on client creation
        assert wrapper_fn.call_count > 0
        wrapper_fn.reset_mock()

        # Ensure method has been cached
        assert client._transport.list_css_products in client._transport._wrapped_methods

        # Replace cached wrapped function with mock
        mock_rpc = mock.Mock()
        mock_rpc.return_value.name = (
            "foo"  # operation_request.operation in compute client(s) expect a string.
        )
        client._transport._wrapped_methods[
            client._transport.list_css_products
        ] = mock_rpc

        request = {}
        client.list_css_products(request)

        # Establish that the underlying gRPC stub method was called.
        assert mock_rpc.call_count == 1

        client.list_css_products(request)

        # Establish that a new wrapper was not created for this call
        assert wrapper_fn.call_count == 0
        assert mock_rpc.call_count == 2


def test_list_css_products_rest_required_fields(
    request_type=css_products.ListCssProductsRequest,
):
    transport_class = transports.CssProductsServiceRestTransport

    request_init = {}
    request_init["parent"] = ""
    request = request_type(**request_init)
    pb_request = request_type.pb(request)
    jsonified_request = json.loads(
        json_format.MessageToJson(pb_request, use_integers_for_enums=False)
    )

    # verify fields with default values are dropped

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).list_css_products._get_unset_required_fields(jsonified_request)
    jsonified_request.update(unset_fields)

    # verify required fields with default values are now present

    jsonified_request["parent"] = "parent_value"

    unset_fields = transport_class(
        credentials=ga_credentials.AnonymousCredentials()
    ).list_css_products._get_unset_required_fields(jsonified_request)
    # Check that path parameters and body parameters are not mixing in.
    assert not set(unset_fields) - set(
        (
            "page_size",
            "page_token",
        )
    )
    jsonified_request.update(unset_fields)

    # verify required fields with non-default values are left alone
    assert "parent" in jsonified_request
    assert jsonified_request["parent"] == "parent_value"

    client = CssProductsServiceClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )
    request = request_type(**request_init)

    # Designate an appropriate value for the returned response.
    return_value = css_products.ListCssProductsResponse()
    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # We need to mock transcode() because providing default values
        # for required fields will fail the real version if the http_options
        # expect actual values for those fields.
        with mock.patch.object(path_template, "transcode") as transcode:
            # A uri without fields and an empty body will force all the
            # request fields to show up in the query_params.
            pb_request = request_type.pb(request)
            transcode_result = {
                "uri": "v1/sample_method",
                "method": "get",
                "query_params": pb_request,
            }
            transcode.return_value = transcode_result

            response_value = Response()
            response_value.status_code = 200

            # Convert return value to protobuf type
            return_value = css_products.ListCssProductsResponse.pb(return_value)
            json_return_value = json_format.MessageToJson(return_value)

            response_value._content = json_return_value.encode("UTF-8")
            req.return_value = response_value

            response = client.list_css_products(request)

            expected_params = [("$alt", "json;enum-encoding=int")]
            actual_params = req.call_args.kwargs["params"]
            assert expected_params == actual_params


def test_list_css_products_rest_unset_required_fields():
    transport = transports.CssProductsServiceRestTransport(
        credentials=ga_credentials.AnonymousCredentials
    )

    unset_fields = transport.list_css_products._get_unset_required_fields({})
    assert set(unset_fields) == (
        set(
            (
                "pageSize",
                "pageToken",
            )
        )
        & set(("parent",))
    )


@pytest.mark.parametrize("null_interceptor", [True, False])
def test_list_css_products_rest_interceptors(null_interceptor):
    transport = transports.CssProductsServiceRestTransport(
        credentials=ga_credentials.AnonymousCredentials(),
        interceptor=None
        if null_interceptor
        else transports.CssProductsServiceRestInterceptor(),
    )
    client = CssProductsServiceClient(transport=transport)
    with mock.patch.object(
        type(client.transport._session), "request"
    ) as req, mock.patch.object(
        path_template, "transcode"
    ) as transcode, mock.patch.object(
        transports.CssProductsServiceRestInterceptor, "post_list_css_products"
    ) as post, mock.patch.object(
        transports.CssProductsServiceRestInterceptor, "pre_list_css_products"
    ) as pre:
        pre.assert_not_called()
        post.assert_not_called()
        pb_message = css_products.ListCssProductsRequest.pb(
            css_products.ListCssProductsRequest()
        )
        transcode.return_value = {
            "method": "post",
            "uri": "my_uri",
            "body": pb_message,
            "query_params": pb_message,
        }

        req.return_value = Response()
        req.return_value.status_code = 200
        req.return_value.request = PreparedRequest()
        req.return_value._content = css_products.ListCssProductsResponse.to_json(
            css_products.ListCssProductsResponse()
        )

        request = css_products.ListCssProductsRequest()
        metadata = [
            ("key", "val"),
            ("cephalopod", "squid"),
        ]
        pre.return_value = request, metadata
        post.return_value = css_products.ListCssProductsResponse()

        client.list_css_products(
            request,
            metadata=[
                ("key", "val"),
                ("cephalopod", "squid"),
            ],
        )

        pre.assert_called_once()
        post.assert_called_once()


def test_list_css_products_rest_bad_request(
    transport: str = "rest", request_type=css_products.ListCssProductsRequest
):
    client = CssProductsServiceClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # send a request that will satisfy transcoding
    request_init = {"parent": "accounts/sample1"}
    request = request_type(**request_init)

    # Mock the http request call within the method and fake a BadRequest error.
    with mock.patch.object(Session, "request") as req, pytest.raises(
        core_exceptions.BadRequest
    ):
        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 400
        response_value.request = Request()
        req.return_value = response_value
        client.list_css_products(request)


def test_list_css_products_rest_flattened():
    client = CssProductsServiceClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="rest",
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(type(client.transport._session), "request") as req:
        # Designate an appropriate value for the returned response.
        return_value = css_products.ListCssProductsResponse()

        # get arguments that satisfy an http rule for this method
        sample_request = {"parent": "accounts/sample1"}

        # get truthy value for each flattened field
        mock_args = dict(
            parent="parent_value",
        )
        mock_args.update(sample_request)

        # Wrap the value into a proper Response obj
        response_value = Response()
        response_value.status_code = 200
        # Convert return value to protobuf type
        return_value = css_products.ListCssProductsResponse.pb(return_value)
        json_return_value = json_format.MessageToJson(return_value)
        response_value._content = json_return_value.encode("UTF-8")
        req.return_value = response_value

        client.list_css_products(**mock_args)

        # Establish that the underlying call was made with the expected
        # request object values.
        assert len(req.mock_calls) == 1
        _, args, _ = req.mock_calls[0]
        assert path_template.validate(
            "%s/v1/{parent=accounts/*}/cssProducts" % client.transport._host, args[1]
        )


def test_list_css_products_rest_flattened_error(transport: str = "rest"):
    client = CssProductsServiceClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Attempting to call a method with both a request object and flattened
    # fields is an error.
    with pytest.raises(ValueError):
        client.list_css_products(
            css_products.ListCssProductsRequest(),
            parent="parent_value",
        )


def test_list_css_products_rest_pager(transport: str = "rest"):
    client = CssProductsServiceClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport=transport,
    )

    # Mock the http request call within the method and fake a response.
    with mock.patch.object(Session, "request") as req:
        # TODO(kbandes): remove this mock unless there's a good reason for it.
        # with mock.patch.object(path_template, 'transcode') as transcode:
        # Set the response as a series of pages
        response = (
            css_products.ListCssProductsResponse(
                css_products=[
                    css_products.CssProduct(),
                    css_products.CssProduct(),
                    css_products.CssProduct(),
                ],
                next_page_token="abc",
            ),
            css_products.ListCssProductsResponse(
                css_products=[],
                next_page_token="def",
            ),
            css_products.ListCssProductsResponse(
                css_products=[
                    css_products.CssProduct(),
                ],
                next_page_token="ghi",
            ),
            css_products.ListCssProductsResponse(
                css_products=[
                    css_products.CssProduct(),
                    css_products.CssProduct(),
                ],
            ),
        )
        # Two responses for two calls
        response = response + response

        # Wrap the values into proper Response objs
        response = tuple(
            css_products.ListCssProductsResponse.to_json(x) for x in response
        )
        return_values = tuple(Response() for i in response)
        for return_val, response_val in zip(return_values, response):
            return_val._content = response_val.encode("UTF-8")
            return_val.status_code = 200
        req.side_effect = return_values

        sample_request = {"parent": "accounts/sample1"}

        pager = client.list_css_products(request=sample_request)

        results = list(pager)
        assert len(results) == 6
        assert all(isinstance(i, css_products.CssProduct) for i in results)

        pages = list(client.list_css_products(request=sample_request).pages)
        for page_, token in zip(pages, ["abc", "def", "ghi", ""]):
            assert page_.raw_page.next_page_token == token


def test_credentials_transport_error():
    # It is an error to provide credentials and a transport instance.
    transport = transports.CssProductsServiceGrpcTransport(
        credentials=ga_credentials.AnonymousCredentials(),
    )
    with pytest.raises(ValueError):
        client = CssProductsServiceClient(
            credentials=ga_credentials.AnonymousCredentials(),
            transport=transport,
        )

    # It is an error to provide a credentials file and a transport instance.
    transport = transports.CssProductsServiceGrpcTransport(
        credentials=ga_credentials.AnonymousCredentials(),
    )
    with pytest.raises(ValueError):
        client = CssProductsServiceClient(
            client_options={"credentials_file": "credentials.json"},
            transport=transport,
        )

    # It is an error to provide an api_key and a transport instance.
    transport = transports.CssProductsServiceGrpcTransport(
        credentials=ga_credentials.AnonymousCredentials(),
    )
    options = client_options.ClientOptions()
    options.api_key = "api_key"
    with pytest.raises(ValueError):
        client = CssProductsServiceClient(
            client_options=options,
            transport=transport,
        )

    # It is an error to provide an api_key and a credential.
    options = client_options.ClientOptions()
    options.api_key = "api_key"
    with pytest.raises(ValueError):
        client = CssProductsServiceClient(
            client_options=options, credentials=ga_credentials.AnonymousCredentials()
        )

    # It is an error to provide scopes and a transport instance.
    transport = transports.CssProductsServiceGrpcTransport(
        credentials=ga_credentials.AnonymousCredentials(),
    )
    with pytest.raises(ValueError):
        client = CssProductsServiceClient(
            client_options={"scopes": ["1", "2"]},
            transport=transport,
        )


def test_transport_instance():
    # A client may be instantiated with a custom transport instance.
    transport = transports.CssProductsServiceGrpcTransport(
        credentials=ga_credentials.AnonymousCredentials(),
    )
    client = CssProductsServiceClient(transport=transport)
    assert client.transport is transport


def test_transport_get_channel():
    # A client may be instantiated with a custom transport instance.
    transport = transports.CssProductsServiceGrpcTransport(
        credentials=ga_credentials.AnonymousCredentials(),
    )
    channel = transport.grpc_channel
    assert channel

    transport = transports.CssProductsServiceGrpcAsyncIOTransport(
        credentials=ga_credentials.AnonymousCredentials(),
    )
    channel = transport.grpc_channel
    assert channel


@pytest.mark.parametrize(
    "transport_class",
    [
        transports.CssProductsServiceGrpcTransport,
        transports.CssProductsServiceGrpcAsyncIOTransport,
        transports.CssProductsServiceRestTransport,
    ],
)
def test_transport_adc(transport_class):
    # Test default credentials are used if not provided.
    with mock.patch.object(google.auth, "default") as adc:
        adc.return_value = (ga_credentials.AnonymousCredentials(), None)
        transport_class()
        adc.assert_called_once()


@pytest.mark.parametrize(
    "transport_name",
    [
        "grpc",
        "rest",
    ],
)
def test_transport_kind(transport_name):
    transport = CssProductsServiceClient.get_transport_class(transport_name)(
        credentials=ga_credentials.AnonymousCredentials(),
    )
    assert transport.kind == transport_name


def test_transport_grpc_default():
    # A client should use the gRPC transport by default.
    client = CssProductsServiceClient(
        credentials=ga_credentials.AnonymousCredentials(),
    )
    assert isinstance(
        client.transport,
        transports.CssProductsServiceGrpcTransport,
    )


def test_css_products_service_base_transport_error():
    # Passing both a credentials object and credentials_file should raise an error
    with pytest.raises(core_exceptions.DuplicateCredentialArgs):
        transport = transports.CssProductsServiceTransport(
            credentials=ga_credentials.AnonymousCredentials(),
            credentials_file="credentials.json",
        )


def test_css_products_service_base_transport():
    # Instantiate the base transport.
    with mock.patch(
        "google.shopping.css_v1.services.css_products_service.transports.CssProductsServiceTransport.__init__"
    ) as Transport:
        Transport.return_value = None
        transport = transports.CssProductsServiceTransport(
            credentials=ga_credentials.AnonymousCredentials(),
        )

    # Every method on the transport should just blindly
    # raise NotImplementedError.
    methods = (
        "get_css_product",
        "list_css_products",
    )
    for method in methods:
        with pytest.raises(NotImplementedError):
            getattr(transport, method)(request=object())

    with pytest.raises(NotImplementedError):
        transport.close()

    # Catch all for all remaining methods and properties
    remainder = [
        "kind",
    ]
    for r in remainder:
        with pytest.raises(NotImplementedError):
            getattr(transport, r)()


def test_css_products_service_base_transport_with_credentials_file():
    # Instantiate the base transport with a credentials file
    with mock.patch.object(
        google.auth, "load_credentials_from_file", autospec=True
    ) as load_creds, mock.patch(
        "google.shopping.css_v1.services.css_products_service.transports.CssProductsServiceTransport._prep_wrapped_messages"
    ) as Transport:
        Transport.return_value = None
        load_creds.return_value = (ga_credentials.AnonymousCredentials(), None)
        transport = transports.CssProductsServiceTransport(
            credentials_file="credentials.json",
            quota_project_id="octopus",
        )
        load_creds.assert_called_once_with(
            "credentials.json",
            scopes=None,
            default_scopes=("https://www.googleapis.com/auth/content",),
            quota_project_id="octopus",
        )


def test_css_products_service_base_transport_with_adc():
    # Test the default credentials are used if credentials and credentials_file are None.
    with mock.patch.object(google.auth, "default", autospec=True) as adc, mock.patch(
        "google.shopping.css_v1.services.css_products_service.transports.CssProductsServiceTransport._prep_wrapped_messages"
    ) as Transport:
        Transport.return_value = None
        adc.return_value = (ga_credentials.AnonymousCredentials(), None)
        transport = transports.CssProductsServiceTransport()
        adc.assert_called_once()


def test_css_products_service_auth_adc():
    # If no credentials are provided, we should use ADC credentials.
    with mock.patch.object(google.auth, "default", autospec=True) as adc:
        adc.return_value = (ga_credentials.AnonymousCredentials(), None)
        CssProductsServiceClient()
        adc.assert_called_once_with(
            scopes=None,
            default_scopes=("https://www.googleapis.com/auth/content",),
            quota_project_id=None,
        )


@pytest.mark.parametrize(
    "transport_class",
    [
        transports.CssProductsServiceGrpcTransport,
        transports.CssProductsServiceGrpcAsyncIOTransport,
    ],
)
def test_css_products_service_transport_auth_adc(transport_class):
    # If credentials and host are not provided, the transport class should use
    # ADC credentials.
    with mock.patch.object(google.auth, "default", autospec=True) as adc:
        adc.return_value = (ga_credentials.AnonymousCredentials(), None)
        transport_class(quota_project_id="octopus", scopes=["1", "2"])
        adc.assert_called_once_with(
            scopes=["1", "2"],
            default_scopes=("https://www.googleapis.com/auth/content",),
            quota_project_id="octopus",
        )


@pytest.mark.parametrize(
    "transport_class",
    [
        transports.CssProductsServiceGrpcTransport,
        transports.CssProductsServiceGrpcAsyncIOTransport,
        transports.CssProductsServiceRestTransport,
    ],
)
def test_css_products_service_transport_auth_gdch_credentials(transport_class):
    host = "https://language.com"
    api_audience_tests = [None, "https://language2.com"]
    api_audience_expect = [host, "https://language2.com"]
    for t, e in zip(api_audience_tests, api_audience_expect):
        with mock.patch.object(google.auth, "default", autospec=True) as adc:
            gdch_mock = mock.MagicMock()
            type(gdch_mock).with_gdch_audience = mock.PropertyMock(
                return_value=gdch_mock
            )
            adc.return_value = (gdch_mock, None)
            transport_class(host=host, api_audience=t)
            gdch_mock.with_gdch_audience.assert_called_once_with(e)


@pytest.mark.parametrize(
    "transport_class,grpc_helpers",
    [
        (transports.CssProductsServiceGrpcTransport, grpc_helpers),
        (transports.CssProductsServiceGrpcAsyncIOTransport, grpc_helpers_async),
    ],
)
def test_css_products_service_transport_create_channel(transport_class, grpc_helpers):
    # If credentials and host are not provided, the transport class should use
    # ADC credentials.
    with mock.patch.object(
        google.auth, "default", autospec=True
    ) as adc, mock.patch.object(
        grpc_helpers, "create_channel", autospec=True
    ) as create_channel:
        creds = ga_credentials.AnonymousCredentials()
        adc.return_value = (creds, None)
        transport_class(quota_project_id="octopus", scopes=["1", "2"])

        create_channel.assert_called_with(
            "css.googleapis.com:443",
            credentials=creds,
            credentials_file=None,
            quota_project_id="octopus",
            default_scopes=("https://www.googleapis.com/auth/content",),
            scopes=["1", "2"],
            default_host="css.googleapis.com",
            ssl_credentials=None,
            options=[
                ("grpc.max_send_message_length", -1),
                ("grpc.max_receive_message_length", -1),
            ],
        )


@pytest.mark.parametrize(
    "transport_class",
    [
        transports.CssProductsServiceGrpcTransport,
        transports.CssProductsServiceGrpcAsyncIOTransport,
    ],
)
def test_css_products_service_grpc_transport_client_cert_source_for_mtls(
    transport_class,
):
    cred = ga_credentials.AnonymousCredentials()

    # Check ssl_channel_credentials is used if provided.
    with mock.patch.object(transport_class, "create_channel") as mock_create_channel:
        mock_ssl_channel_creds = mock.Mock()
        transport_class(
            host="squid.clam.whelk",
            credentials=cred,
            ssl_channel_credentials=mock_ssl_channel_creds,
        )
        mock_create_channel.assert_called_once_with(
            "squid.clam.whelk:443",
            credentials=cred,
            credentials_file=None,
            scopes=None,
            ssl_credentials=mock_ssl_channel_creds,
            quota_project_id=None,
            options=[
                ("grpc.max_send_message_length", -1),
                ("grpc.max_receive_message_length", -1),
            ],
        )

    # Check if ssl_channel_credentials is not provided, then client_cert_source_for_mtls
    # is used.
    with mock.patch.object(transport_class, "create_channel", return_value=mock.Mock()):
        with mock.patch("grpc.ssl_channel_credentials") as mock_ssl_cred:
            transport_class(
                credentials=cred,
                client_cert_source_for_mtls=client_cert_source_callback,
            )
            expected_cert, expected_key = client_cert_source_callback()
            mock_ssl_cred.assert_called_once_with(
                certificate_chain=expected_cert, private_key=expected_key
            )


def test_css_products_service_http_transport_client_cert_source_for_mtls():
    cred = ga_credentials.AnonymousCredentials()
    with mock.patch(
        "google.auth.transport.requests.AuthorizedSession.configure_mtls_channel"
    ) as mock_configure_mtls_channel:
        transports.CssProductsServiceRestTransport(
            credentials=cred, client_cert_source_for_mtls=client_cert_source_callback
        )
        mock_configure_mtls_channel.assert_called_once_with(client_cert_source_callback)


@pytest.mark.parametrize(
    "transport_name",
    [
        "grpc",
        "grpc_asyncio",
        "rest",
    ],
)
def test_css_products_service_host_no_port(transport_name):
    client = CssProductsServiceClient(
        credentials=ga_credentials.AnonymousCredentials(),
        client_options=client_options.ClientOptions(api_endpoint="css.googleapis.com"),
        transport=transport_name,
    )
    assert client.transport._host == (
        "css.googleapis.com:443"
        if transport_name in ["grpc", "grpc_asyncio"]
        else "https://css.googleapis.com"
    )


@pytest.mark.parametrize(
    "transport_name",
    [
        "grpc",
        "grpc_asyncio",
        "rest",
    ],
)
def test_css_products_service_host_with_port(transport_name):
    client = CssProductsServiceClient(
        credentials=ga_credentials.AnonymousCredentials(),
        client_options=client_options.ClientOptions(
            api_endpoint="css.googleapis.com:8000"
        ),
        transport=transport_name,
    )
    assert client.transport._host == (
        "css.googleapis.com:8000"
        if transport_name in ["grpc", "grpc_asyncio"]
        else "https://css.googleapis.com:8000"
    )


@pytest.mark.parametrize(
    "transport_name",
    [
        "rest",
    ],
)
def test_css_products_service_client_transport_session_collision(transport_name):
    creds1 = ga_credentials.AnonymousCredentials()
    creds2 = ga_credentials.AnonymousCredentials()
    client1 = CssProductsServiceClient(
        credentials=creds1,
        transport=transport_name,
    )
    client2 = CssProductsServiceClient(
        credentials=creds2,
        transport=transport_name,
    )
    session1 = client1.transport.get_css_product._session
    session2 = client2.transport.get_css_product._session
    assert session1 != session2
    session1 = client1.transport.list_css_products._session
    session2 = client2.transport.list_css_products._session
    assert session1 != session2


def test_css_products_service_grpc_transport_channel():
    channel = grpc.secure_channel("http://localhost/", grpc.local_channel_credentials())

    # Check that channel is used if provided.
    transport = transports.CssProductsServiceGrpcTransport(
        host="squid.clam.whelk",
        channel=channel,
    )
    assert transport.grpc_channel == channel
    assert transport._host == "squid.clam.whelk:443"
    assert transport._ssl_channel_credentials == None


def test_css_products_service_grpc_asyncio_transport_channel():
    channel = aio.secure_channel("http://localhost/", grpc.local_channel_credentials())

    # Check that channel is used if provided.
    transport = transports.CssProductsServiceGrpcAsyncIOTransport(
        host="squid.clam.whelk",
        channel=channel,
    )
    assert transport.grpc_channel == channel
    assert transport._host == "squid.clam.whelk:443"
    assert transport._ssl_channel_credentials == None


# Remove this test when deprecated arguments (api_mtls_endpoint, client_cert_source) are
# removed from grpc/grpc_asyncio transport constructor.
@pytest.mark.parametrize(
    "transport_class",
    [
        transports.CssProductsServiceGrpcTransport,
        transports.CssProductsServiceGrpcAsyncIOTransport,
    ],
)
def test_css_products_service_transport_channel_mtls_with_client_cert_source(
    transport_class,
):
    with mock.patch(
        "grpc.ssl_channel_credentials", autospec=True
    ) as grpc_ssl_channel_cred:
        with mock.patch.object(
            transport_class, "create_channel"
        ) as grpc_create_channel:
            mock_ssl_cred = mock.Mock()
            grpc_ssl_channel_cred.return_value = mock_ssl_cred

            mock_grpc_channel = mock.Mock()
            grpc_create_channel.return_value = mock_grpc_channel

            cred = ga_credentials.AnonymousCredentials()
            with pytest.warns(DeprecationWarning):
                with mock.patch.object(google.auth, "default") as adc:
                    adc.return_value = (cred, None)
                    transport = transport_class(
                        host="squid.clam.whelk",
                        api_mtls_endpoint="mtls.squid.clam.whelk",
                        client_cert_source=client_cert_source_callback,
                    )
                    adc.assert_called_once()

            grpc_ssl_channel_cred.assert_called_once_with(
                certificate_chain=b"cert bytes", private_key=b"key bytes"
            )
            grpc_create_channel.assert_called_once_with(
                "mtls.squid.clam.whelk:443",
                credentials=cred,
                credentials_file=None,
                scopes=None,
                ssl_credentials=mock_ssl_cred,
                quota_project_id=None,
                options=[
                    ("grpc.max_send_message_length", -1),
                    ("grpc.max_receive_message_length", -1),
                ],
            )
            assert transport.grpc_channel == mock_grpc_channel
            assert transport._ssl_channel_credentials == mock_ssl_cred


# Remove this test when deprecated arguments (api_mtls_endpoint, client_cert_source) are
# removed from grpc/grpc_asyncio transport constructor.
@pytest.mark.parametrize(
    "transport_class",
    [
        transports.CssProductsServiceGrpcTransport,
        transports.CssProductsServiceGrpcAsyncIOTransport,
    ],
)
def test_css_products_service_transport_channel_mtls_with_adc(transport_class):
    mock_ssl_cred = mock.Mock()
    with mock.patch.multiple(
        "google.auth.transport.grpc.SslCredentials",
        __init__=mock.Mock(return_value=None),
        ssl_credentials=mock.PropertyMock(return_value=mock_ssl_cred),
    ):
        with mock.patch.object(
            transport_class, "create_channel"
        ) as grpc_create_channel:
            mock_grpc_channel = mock.Mock()
            grpc_create_channel.return_value = mock_grpc_channel
            mock_cred = mock.Mock()

            with pytest.warns(DeprecationWarning):
                transport = transport_class(
                    host="squid.clam.whelk",
                    credentials=mock_cred,
                    api_mtls_endpoint="mtls.squid.clam.whelk",
                    client_cert_source=None,
                )

            grpc_create_channel.assert_called_once_with(
                "mtls.squid.clam.whelk:443",
                credentials=mock_cred,
                credentials_file=None,
                scopes=None,
                ssl_credentials=mock_ssl_cred,
                quota_project_id=None,
                options=[
                    ("grpc.max_send_message_length", -1),
                    ("grpc.max_receive_message_length", -1),
                ],
            )
            assert transport.grpc_channel == mock_grpc_channel


def test_css_product_path():
    account = "squid"
    css_product = "clam"
    expected = "accounts/{account}/cssProducts/{css_product}".format(
        account=account,
        css_product=css_product,
    )
    actual = CssProductsServiceClient.css_product_path(account, css_product)
    assert expected == actual


def test_parse_css_product_path():
    expected = {
        "account": "whelk",
        "css_product": "octopus",
    }
    path = CssProductsServiceClient.css_product_path(**expected)

    # Check that the path construction is reversible.
    actual = CssProductsServiceClient.parse_css_product_path(path)
    assert expected == actual


def test_common_billing_account_path():
    billing_account = "oyster"
    expected = "billingAccounts/{billing_account}".format(
        billing_account=billing_account,
    )
    actual = CssProductsServiceClient.common_billing_account_path(billing_account)
    assert expected == actual


def test_parse_common_billing_account_path():
    expected = {
        "billing_account": "nudibranch",
    }
    path = CssProductsServiceClient.common_billing_account_path(**expected)

    # Check that the path construction is reversible.
    actual = CssProductsServiceClient.parse_common_billing_account_path(path)
    assert expected == actual


def test_common_folder_path():
    folder = "cuttlefish"
    expected = "folders/{folder}".format(
        folder=folder,
    )
    actual = CssProductsServiceClient.common_folder_path(folder)
    assert expected == actual


def test_parse_common_folder_path():
    expected = {
        "folder": "mussel",
    }
    path = CssProductsServiceClient.common_folder_path(**expected)

    # Check that the path construction is reversible.
    actual = CssProductsServiceClient.parse_common_folder_path(path)
    assert expected == actual


def test_common_organization_path():
    organization = "winkle"
    expected = "organizations/{organization}".format(
        organization=organization,
    )
    actual = CssProductsServiceClient.common_organization_path(organization)
    assert expected == actual


def test_parse_common_organization_path():
    expected = {
        "organization": "nautilus",
    }
    path = CssProductsServiceClient.common_organization_path(**expected)

    # Check that the path construction is reversible.
    actual = CssProductsServiceClient.parse_common_organization_path(path)
    assert expected == actual


def test_common_project_path():
    project = "scallop"
    expected = "projects/{project}".format(
        project=project,
    )
    actual = CssProductsServiceClient.common_project_path(project)
    assert expected == actual


def test_parse_common_project_path():
    expected = {
        "project": "abalone",
    }
    path = CssProductsServiceClient.common_project_path(**expected)

    # Check that the path construction is reversible.
    actual = CssProductsServiceClient.parse_common_project_path(path)
    assert expected == actual


def test_common_location_path():
    project = "squid"
    location = "clam"
    expected = "projects/{project}/locations/{location}".format(
        project=project,
        location=location,
    )
    actual = CssProductsServiceClient.common_location_path(project, location)
    assert expected == actual


def test_parse_common_location_path():
    expected = {
        "project": "whelk",
        "location": "octopus",
    }
    path = CssProductsServiceClient.common_location_path(**expected)

    # Check that the path construction is reversible.
    actual = CssProductsServiceClient.parse_common_location_path(path)
    assert expected == actual


def test_client_with_default_client_info():
    client_info = gapic_v1.client_info.ClientInfo()

    with mock.patch.object(
        transports.CssProductsServiceTransport, "_prep_wrapped_messages"
    ) as prep:
        client = CssProductsServiceClient(
            credentials=ga_credentials.AnonymousCredentials(),
            client_info=client_info,
        )
        prep.assert_called_once_with(client_info)

    with mock.patch.object(
        transports.CssProductsServiceTransport, "_prep_wrapped_messages"
    ) as prep:
        transport_class = CssProductsServiceClient.get_transport_class()
        transport = transport_class(
            credentials=ga_credentials.AnonymousCredentials(),
            client_info=client_info,
        )
        prep.assert_called_once_with(client_info)


@pytest.mark.asyncio
async def test_transport_close_async():
    client = CssProductsServiceAsyncClient(
        credentials=ga_credentials.AnonymousCredentials(),
        transport="grpc_asyncio",
    )
    with mock.patch.object(
        type(getattr(client.transport, "grpc_channel")), "close"
    ) as close:
        async with client:
            close.assert_not_called()
        close.assert_called_once()


def test_transport_close():
    transports = {
        "rest": "_session",
        "grpc": "_grpc_channel",
    }

    for transport, close_name in transports.items():
        client = CssProductsServiceClient(
            credentials=ga_credentials.AnonymousCredentials(), transport=transport
        )
        with mock.patch.object(
            type(getattr(client.transport, close_name)), "close"
        ) as close:
            with client:
                close.assert_not_called()
            close.assert_called_once()


def test_client_ctx():
    transports = [
        "rest",
        "grpc",
    ]
    for transport in transports:
        client = CssProductsServiceClient(
            credentials=ga_credentials.AnonymousCredentials(), transport=transport
        )
        # Test client calls underlying transport.
        with mock.patch.object(type(client.transport), "close") as close:
            close.assert_not_called()
            with client:
                pass
            close.assert_called()


@pytest.mark.parametrize(
    "client_class,transport_class",
    [
        (CssProductsServiceClient, transports.CssProductsServiceGrpcTransport),
        (
            CssProductsServiceAsyncClient,
            transports.CssProductsServiceGrpcAsyncIOTransport,
        ),
    ],
)
def test_api_key_credentials(client_class, transport_class):
    with mock.patch.object(
        google.auth._default, "get_api_key_credentials", create=True
    ) as get_api_key_credentials:
        mock_cred = mock.Mock()
        get_api_key_credentials.return_value = mock_cred
        options = client_options.ClientOptions()
        options.api_key = "api_key"
        with mock.patch.object(transport_class, "__init__") as patched:
            patched.return_value = None
            client = client_class(client_options=options)
            patched.assert_called_once_with(
                credentials=mock_cred,
                credentials_file=None,
                host=client._DEFAULT_ENDPOINT_TEMPLATE.format(
                    UNIVERSE_DOMAIN=client._DEFAULT_UNIVERSE
                ),
                scopes=None,
                client_cert_source_for_mtls=None,
                quota_project_id=None,
                client_info=transports.base.DEFAULT_CLIENT_INFO,
                always_use_jwt_access=True,
                api_audience=None,
            )
