# -*- coding: utf-8 -*-
# Copyright 2013-2020 CERN
#
# 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.
#
# Authors:
# - Vincent Garonne <vincent.garonne@cern.ch>, 2013-2018
# - Martin Barisits <martin.barisits@cern.ch>, 2013-2020
# - Mario Lassnig <mario.lassnig@cern.ch>, 2013-2020
# - Cedric Serfon <cedric.serfon@cern.ch>, 2013-2020
# - Ralph Vigne <ralph.vigne@cern.ch>, 2013
# - Yun-Pin Sun <winter0128@gmail.com>, 2013
# - Thomas Beermann <thomas.beermann@cern.ch>, 2013-2018
# - Joaquín Bogado <jbogado@linti.unlp.edu.ar>, 2018
# - Hannes Hansen <hannes.jakob.hansen@cern.ch>, 2018-2019
# - Andrew Lister <andrew.lister@stfc.ac.uk>, 2019
# - Ruturaj Gujar <ruturaj.gujar23@gmail.com>, 2019
# - Eli Chadwick <eli.chadwick@stfc.ac.uk>, 2020
# - Patrick Austin <patrick.austin@stfc.ac.uk>, 2020
# - Jaroslav Guenther <jaroslav.guenther@cern.ch>, 2020
# - Benedikt Ziemons <benedikt.ziemons@cern.ch>, 2020

from __future__ import print_function

import unittest
from datetime import datetime, timedelta

import pytest

from rucio.api import did
from rucio.api import scope
from rucio.client.accountclient import AccountClient
from rucio.client.didclient import DIDClient
from rucio.client.metaclient import MetaClient
from rucio.client.replicaclient import ReplicaClient
from rucio.client.rseclient import RSEClient
from rucio.client.scopeclient import ScopeClient
from rucio.common import exception
from rucio.common.config import config_get, config_get_bool
from rucio.common.exception import (DataIdentifierNotFound, DataIdentifierAlreadyExists,
                                    InvalidPath, KeyNotFound, UnsupportedOperation,
                                    UnsupportedStatus, ScopeNotFound, FileAlreadyExists, FileConsistencyMismatch)
from rucio.common.types import InternalAccount, InternalScope
from rucio.common.utils import generate_uuid
from rucio.core.account_limit import set_local_account_limit
from rucio.core.did import (list_dids, add_did, delete_dids, get_did_atime, touch_dids, attach_dids, detach_dids,
                            get_metadata, set_metadata, get_did, get_did_access_cnt, add_did_to_followed,
                            get_users_following_did, remove_did_from_followed)
from rucio.core.replica import add_replica
from rucio.core.rse import get_rse_id
from rucio.db.sqla.constants import DIDType
from rucio.tests.common import rse_name_generator, scope_name_generator


class TestDIDCore(unittest.TestCase):

    def setUp(self):
        if config_get_bool('common', 'multi_vo', raise_exception=False, default=False):
            self.vo = {'vo': config_get('client', 'vo', raise_exception=False, default='tst')}
        else:
            self.vo = {}

    def test_list_dids(self):
        """ DATA IDENTIFIERS (CORE): List dids """
        for d in list_dids(scope=InternalScope('data13_hip', **self.vo), filters={'name': '*'}, type='collection'):
            print(d)

    def test_delete_dids(self):
        """ DATA IDENTIFIERS (CORE): Delete dids """
        tmp_scope = InternalScope('mock', **self.vo)
        root = InternalAccount('root', **self.vo)
        dsns = [{'name': 'dsn_%s' % generate_uuid(),
                 'scope': tmp_scope,
                 'purge_replicas': False,
                 'did_type': DIDType.DATASET} for i in range(5)]
        for dsn in dsns:
            add_did(scope=tmp_scope, name=dsn['name'], type='DATASET', account=root)
        delete_dids(dids=dsns, account=root)

    def test_touch_dids_atime(self):
        """ DATA IDENTIFIERS (CORE): Touch dids accessed_at timestamp"""
        tmp_scope = InternalScope('mock', **self.vo)
        root = InternalAccount('root', **self.vo)
        tmp_dsn1 = 'dsn_%s' % generate_uuid()
        tmp_dsn2 = 'dsn_%s' % generate_uuid()

        add_did(scope=tmp_scope, name=tmp_dsn1, type=DIDType.DATASET, account=root)
        add_did(scope=tmp_scope, name=tmp_dsn2, type=DIDType.DATASET, account=root)
        now = datetime.utcnow()

        now -= timedelta(microseconds=now.microsecond)
        assert get_did_atime(scope=tmp_scope, name=tmp_dsn1) is None
        assert get_did_atime(scope=tmp_scope, name=tmp_dsn2) is None

        touch_dids(dids=[{'scope': tmp_scope, 'name': tmp_dsn1, 'type': DIDType.DATASET, 'accessed_at': now}])
        assert now == get_did_atime(scope=tmp_scope, name=tmp_dsn1)
        assert get_did_atime(scope=tmp_scope, name=tmp_dsn2) is None

    def test_touch_dids_access_cnt(self):
        """ DATA IDENTIFIERS (CORE): Increase dids access_cnt"""
        tmp_scope = InternalScope('mock', **self.vo)
        root = InternalAccount('root', **self.vo)
        tmp_dsn1 = 'dsn_%s' % generate_uuid()
        tmp_dsn2 = 'dsn_%s' % generate_uuid()

        add_did(scope=tmp_scope, name=tmp_dsn1, type=DIDType.DATASET, account=root)
        add_did(scope=tmp_scope, name=tmp_dsn2, type=DIDType.DATASET, account=root)

        assert get_did_access_cnt(scope=tmp_scope, name=tmp_dsn1) is None
        assert get_did_access_cnt(scope=tmp_scope, name=tmp_dsn2) is None

        for i in range(100):
            touch_dids(dids=[{'scope': tmp_scope, 'name': tmp_dsn1, 'type': DIDType.DATASET}])
        assert 100 == get_did_access_cnt(scope=tmp_scope, name=tmp_dsn1)
        assert get_did_access_cnt(scope=tmp_scope, name=tmp_dsn2) is None

    def test_update_dids(self):
        """ DATA IDENTIFIERS (CORE): Update file size and checksum"""
        tmp_scope = InternalScope('mock', **self.vo)
        root = InternalAccount('root', **self.vo)
        dsn = 'dsn_%s' % generate_uuid()
        lfn = 'lfn.%s' % str(generate_uuid())
        add_did(scope=tmp_scope, name=dsn, type=DIDType.DATASET, account=root)

        files = [{'scope': tmp_scope, 'name': lfn,
                  'bytes': 724963570, 'adler32': '0cc737eb',
                  'meta': {'guid': str(generate_uuid()), 'events': 100}}]
        attach_dids(scope=tmp_scope, name=dsn, rse_id=get_rse_id(rse='MOCK', **self.vo), dids=files, account=root)

        set_metadata(scope=tmp_scope, name=lfn, key='adler32', value='0cc737ee')
        assert get_metadata(scope=tmp_scope, name=lfn)['adler32'] == '0cc737ee'

        with pytest.raises(DataIdentifierNotFound):
            set_metadata(scope=tmp_scope, name='Nimportnawak', key='adler32', value='0cc737ee')

        set_metadata(scope=tmp_scope, name=lfn, key='bytes', value=724963577)
        assert get_metadata(scope=tmp_scope, name=lfn)['bytes'] == 724963577

    def test_get_did_with_dynamic(self):
        """ DATA IDENTIFIERS (CORE): Get did with dynamic resolve of size"""
        tmp_scope = InternalScope('mock', **self.vo)
        root = InternalAccount('root', **self.vo)
        tmp_dsn1 = 'dsn_%s' % generate_uuid()
        tmp_dsn2 = 'dsn_%s' % generate_uuid()
        tmp_dsn3 = 'dsn_%s' % generate_uuid()
        tmp_dsn4 = 'dsn_%s' % generate_uuid()

        rse_id = get_rse_id(rse='MOCK', **self.vo)

        add_did(scope=tmp_scope, name=tmp_dsn1, type=DIDType.DATASET, account=root)
        add_replica(rse_id=rse_id, scope=tmp_scope, name=tmp_dsn2, bytes=10, account=root)
        add_replica(rse_id=rse_id, scope=tmp_scope, name=tmp_dsn3, bytes=10, account=root)
        attach_dids(scope=tmp_scope, name=tmp_dsn1, dids=[{'scope': tmp_scope, 'name': tmp_dsn2}, {'scope': tmp_scope, 'name': tmp_dsn3}], account=root)

        add_did(scope=tmp_scope, name=tmp_dsn4, type=DIDType.CONTAINER, account=root)
        attach_dids(scope=tmp_scope, name=tmp_dsn4, dids=[{'scope': tmp_scope, 'name': tmp_dsn1}], account=root)

        assert get_did(scope=tmp_scope, name=tmp_dsn1, dynamic=True)['bytes'] == 20
        assert get_did(scope=tmp_scope, name=tmp_dsn4, dynamic=True)['bytes'] == 20

    def test_reattach_dids(self):
        """ DATA IDENTIFIERS (CORE): Repeatedly attach and detach DIDs """
        tmp_scope = InternalScope('mock', **self.vo)
        root = InternalAccount('root', **self.vo)
        parent_name = 'parent_%s' % generate_uuid()
        add_did(scope=tmp_scope, name=parent_name, type=DIDType.DATASET, account=root)

        child_name = 'child_%s' % generate_uuid()
        files = [{'scope': tmp_scope, 'name': child_name,
                  'bytes': 12345, 'adler32': '0cc737eb'}]

        rse_id = get_rse_id('MOCK', **self.vo)
        attach_dids(scope=tmp_scope, name=parent_name, rse_id=rse_id, dids=files, account=root)

        detach_dids(scope=tmp_scope, name=parent_name, dids=files)

        attach_dids(scope=tmp_scope, name=parent_name, rse_id=rse_id, dids=files, account=root)

        detach_dids(scope=tmp_scope, name=parent_name, dids=files)

    def test_add_did_to_followed(self):
        """ DATA IDENTIFIERS (CORE): Mark a did as followed """
        tmp_scope = InternalScope('mock', **self.vo)
        dsn = 'dsn_%s' % generate_uuid()
        root = InternalAccount('root', **self.vo)

        add_did(scope=tmp_scope, name=dsn, type=DIDType.DATASET, account=root)
        add_did_to_followed(scope=tmp_scope, name=dsn, account=root)
        users = get_users_following_did(scope=tmp_scope, name=dsn)
        rows = 0
        for user in users:
            rows += 1

        assert rows == 1

    def test_get_users_following_did(self):
        """ DATA IDENTIFIERS (CORE): Get the list of users following a did """
        tmp_scope = InternalScope('mock', **self.vo)
        dsn = 'dsn_%s' % generate_uuid()
        root = InternalAccount('root', **self.vo)

        add_did(scope=tmp_scope, name=dsn, type=DIDType.DATASET, account=root)
        add_did_to_followed(scope=tmp_scope, name=dsn, account=root)

        users = get_users_following_did(scope=tmp_scope, name=dsn)
        rows = 0
        for user in users:
            rows += 1

        assert rows == 1

    def test_remove_did_from_followed(self):
        """ DATA IDENTIFIERS (CORE): Mark a did as not followed """
        tmp_scope = InternalScope('mock', **self.vo)
        dsn = 'dsn_%s' % generate_uuid()
        root = InternalAccount('root', **self.vo)

        add_did(scope=tmp_scope, name=dsn, type=DIDType.DATASET, account=root)
        add_did_to_followed(scope=tmp_scope, name=dsn, account=root)

        users = get_users_following_did(scope=tmp_scope, name=dsn)
        rows = 0
        for user in users:
            rows += 1

        assert rows == 1

        remove_did_from_followed(scope=tmp_scope, name=dsn, account=root)

        users = get_users_following_did(scope=tmp_scope, name=dsn)
        rows = 0
        for user in users:
            rows += 1

        assert rows == 0


class TestDIDApi(unittest.TestCase):
    def setUp(self):
        if config_get_bool('common', 'multi_vo', raise_exception=False, default=False):
            self.vo = {'vo': config_get('client', 'vo', raise_exception=False, default='tst')}
        else:
            self.vo = {}

    def test_list_new_dids(self):
        """ DATA IDENTIFIERS (API): List new identifiers """
        tmp_scope = scope_name_generator()
        tmp_dsn = 'dsn_%s' % generate_uuid()
        scope.add_scope(tmp_scope, 'jdoe', 'jdoe', **self.vo)
        for i in range(0, 5):
            did.add_did(scope=tmp_scope, name='%s-%i' % (tmp_dsn, i), type='DATASET', issuer='root', **self.vo)
        for i in did.list_new_dids('DATASET', **self.vo):
            assert i != {}
            assert i['did_type'] == DIDType.DATASET
            break
        for i in did.list_new_dids(**self.vo):
            assert i != {}
            break

    def test_update_new_dids(self):
        """ DATA IDENTIFIERS (API): List new identifiers and update the flag new """
        tmp_scope = scope_name_generator()
        tmp_dsn = 'dsn_%s' % generate_uuid()
        scope.add_scope(tmp_scope, 'jdoe', 'jdoe', **self.vo)
        dids = []
        for i in range(0, 5):
            d = {'scope': tmp_scope, 'name': '%s-%i' % (tmp_dsn, i), 'did_type': DIDType.DATASET}
            did.add_did(scope=tmp_scope, name='%s-%i' % (tmp_dsn, i), type='DATASET', issuer='root', **self.vo)
            dids.append(d)
        st = did.set_new_dids(dids, None, **self.vo)
        assert st
        with pytest.raises(DataIdentifierNotFound):
            did.set_new_dids([{'scope': 'dummyscope', 'name': 'dummyname', 'did_type': DIDType.DATASET}], None, **self.vo)


class TestDIDClients(unittest.TestCase):

    def setUp(self):
        if config_get_bool('common', 'multi_vo', raise_exception=False, default=False):
            self.vo = {'vo': config_get('client', 'vo', raise_exception=False, default='tst')}
        else:
            self.vo = {}

        self.account_client = AccountClient()
        self.scope_client = ScopeClient()
        self.meta_client = MetaClient()
        self.did_client = DIDClient()
        self.replica_client = ReplicaClient()
        self.rse_client = RSEClient()

    def test_list_dids(self):
        """ DATA IDENTIFIERS (CLIENT): List dids by pattern."""
        tmp_scope = scope_name_generator()
        tmp_files = []
        tmp_files.append('file_a_1%s' % generate_uuid())
        tmp_files.append('file_a_2%s' % generate_uuid())
        tmp_files.append('file_b_1%s' % generate_uuid())
        tmp_rse = 'MOCK'

        self.scope_client.add_scope('jdoe', tmp_scope)
        for tmp_file in tmp_files:
            self.replica_client.add_replica(tmp_rse, tmp_scope, tmp_file, 1, '0cc737eb')

        results = []
        for result in self.did_client.list_dids(tmp_scope, {'name': 'file_a_*'}, type='file'):
            results.append(result)
        assert len(results) == 2
        results = []
        for result in self.did_client.list_dids(tmp_scope, {'name': 'file_a_1*'}, type='file'):
            results.append(result)
        assert len(results) == 1
        results = []
        for result in self.did_client.list_dids(tmp_scope, {'name': 'file_*_1*'}, type='file'):
            results.append(result)
        assert len(results) == 2
        results = []
        for result in self.did_client.list_dids(tmp_scope, {'name': 'file*'}, type='file'):
            results.append(result)
        assert len(results) == 3
        results = []

        filters = {'name': 'file*', 'created_after': datetime.utcnow() - timedelta(hours=1)}
        for result in self.did_client.list_dids(tmp_scope, filters):
            results.append(result)
        assert len(results) == 0
        with pytest.raises(UnsupportedOperation):
            self.did_client.list_dids(tmp_scope, {'name': 'file*'}, type='whateverytype')

    def test_list_recursive(self):
        """ DATA IDENTIFIERS (CLIENT): List did recursive """
        # Create nested containers and datast
        tmp_scope_1 = 'list-did-recursive'
        tmp_scope_2 = 'list-did-recursive-2'
        self.scope_client.add_scope('root', tmp_scope_1)
        self.scope_client.add_scope('root', tmp_scope_2)

        tmp_container_1 = 'container_%s' % generate_uuid()
        self.did_client.add_container(scope=tmp_scope_1, name=tmp_container_1)

        tmp_container_2 = 'container_%s' % generate_uuid()
        self.did_client.add_container(scope=tmp_scope_1, name=tmp_container_2)

        tmp_dataset_1 = 'dataset_%s' % generate_uuid()
        self.did_client.add_dataset(scope=tmp_scope_2, name=tmp_dataset_1)

        tmp_dataset_2 = 'dataset_%s' % generate_uuid()
        self.did_client.add_dataset(scope=tmp_scope_1, name=tmp_dataset_2)

        self.did_client.attach_dids(scope=tmp_scope_1, name=tmp_container_1, dids=[{'scope': tmp_scope_2, 'name': tmp_dataset_1}])
        self.did_client.attach_dids(scope=tmp_scope_1, name=tmp_container_2, dids=[{'scope': tmp_scope_1, 'name': tmp_dataset_2}])
        self.did_client.attach_dids(scope=tmp_scope_1, name=tmp_container_1, dids=[{'scope': tmp_scope_1, 'name': tmp_container_2}])

        # List DIDs not recursive - only the first container is expected
        dids = [str(did) for did in self.did_client.list_dids(scope=tmp_scope_1, recursive=False, type='all', filters={'name': tmp_container_1})]
        assert dids == [tmp_container_1]

        # List DIDs recursive - first container and all attached collections are expected
        dids = [str(did) for did in self.did_client.list_dids(scope=tmp_scope_1, recursive=True, type='all', filters={'name': tmp_container_1})]
        assert tmp_container_1 in dids
        assert tmp_container_2 in dids
        assert tmp_dataset_1 in dids
        assert tmp_dataset_2 in dids
        assert len(dids) == 4

        # List DIDs recursive - only containers are expected
        dids = [str(did) for did in self.did_client.list_dids(scope=tmp_scope_1, recursive=True, type='container', filters={'name': tmp_container_1})]
        assert tmp_container_1 in dids
        assert tmp_container_2 in dids
        assert tmp_dataset_1 not in dids
        assert tmp_dataset_2 not in dids
        assert len(dids) == 2

    def test_list_by_length(self):
        """ DATA IDENTIFIERS (CLIENT): List did with length """
        tmp_scope = 'mock'

        tmp_dsn = 'dsn_%s' % generate_uuid()
        self.did_client.add_dataset(scope=tmp_scope, name=tmp_dsn)

        dids = self.did_client.list_dids(tmp_scope, {'length.gt': 0})
        results = []
        for d in dids:
            results.append(d)
        assert len(results) != 0

        dids = self.did_client.list_dids(tmp_scope, {'length.gt': -1, 'length.lt': 1})
        results = []
        for d in dids:
            results.append(d)
        assert len(results) == 0

        dids = self.did_client.list_dids(tmp_scope, {'length': 0})
        results = []
        for d in dids:
            results.append(d)
        assert len(results) == 0

    def test_list_by_metadata(self):
        """ DATA IDENTIFIERS (CLIENT): List did with metadata"""
        dsns = []
        tmp_scope = 'mock'
        tmp_dsn1 = 'dsn_%s' % generate_uuid()
        dsns.append(tmp_dsn1)

        dataset_meta = {'project': 'data12_8TeV',
                        'run_number': 400000,
                        'stream_name': 'physics_CosmicCalo',
                        'prod_step': 'merge',
                        'datatype': 'NTUP_TRIG',
                        'version': 'f392_m920',
                        }
        self.did_client.add_dataset(scope=tmp_scope, name=tmp_dsn1, meta=dataset_meta)
        tmp_dsn2 = 'dsn_%s' % generate_uuid()
        dsns.append(tmp_dsn2)
        dataset_meta['run_number'] = 400001
        self.did_client.add_dataset(scope=tmp_scope, name=tmp_dsn2, meta=dataset_meta)

        tmp_dsn3 = 'dsn_%s' % generate_uuid()
        dsns.append(tmp_dsn3)
        dataset_meta['stream_name'] = 'physics_Egamma'
        dataset_meta['datatype'] = 'NTUP_SMWZ'
        self.did_client.add_dataset(scope=tmp_scope, name=tmp_dsn3, meta=dataset_meta)

        dids = self.did_client.list_dids(tmp_scope, {'project': 'data12_8TeV', 'version': 'f392_m920'})
        results = []
        for d in dids:
            results.append(d)
        for dsn in dsns:
            assert dsn in results
        dsns.remove(tmp_dsn1)

        dids = self.did_client.list_dids(tmp_scope, {'project': 'data12_8TeV', 'run_number': 400001})
        results = []
        for d in dids:
            results.append(d)
        for dsn in dsns:
            assert dsn in results
        dsns.remove(tmp_dsn2)

        dids = self.did_client.list_dids(tmp_scope, {'project': 'data12_8TeV', 'stream_name': 'physics_Egamma', 'datatype': 'NTUP_SMWZ'})
        results = []
        for d in dids:
            results.append(d)
        for dsn in dsns:
            assert dsn in results

        with pytest.raises(KeyNotFound):
            self.did_client.list_dids(tmp_scope, {'NotReallyAKey': 'NotReallyAValue'})

    def test_add_did(self):
        """ DATA IDENTIFIERS (CLIENT): Add, populate, list did content and create a sample"""
        tmp_scope = 'mock'
        tmp_rse = 'MOCK'
        tmp_dsn = 'dsn_%s' % generate_uuid()
        root = InternalAccount('root', **self.vo)
        set_local_account_limit(root, get_rse_id('MOCK', **self.vo), -1)
        set_local_account_limit(root, get_rse_id('CERN-PROD_TZERO', **self.vo), -1)

        # PFN example: rfio://castoratlas.cern.ch/castor/cern.ch/grid/atlas/tzero/xx/xx/xx/filename
        dataset_meta = {'project': 'data13_hip',
                        'run_number': 300000,
                        'stream_name': 'physics_CosmicCalo',
                        'prod_step': 'merge',
                        'datatype': 'NTUP_TRIG',
                        'version': 'f392_m927',
                        }
        rules = [{'copies': 1, 'rse_expression': 'MOCK', 'account': 'root'}]

        with pytest.raises(ScopeNotFound):
            self.did_client.add_dataset(scope='Nimportnawak', name=tmp_dsn, statuses={'monotonic': True}, meta=dataset_meta, rules=rules)

        files = [{'scope': InternalScope(tmp_scope, **self.vo), 'name': 'lfn.%(tmp_dsn)s.' % locals() + str(generate_uuid()), 'bytes': 724963570, 'adler32': '0cc737eb'}, ]
        with pytest.raises(DataIdentifierNotFound):
            self.did_client.add_dataset(scope=tmp_scope, name=tmp_dsn, statuses={'monotonic': True}, meta=dataset_meta, rules=rules, files=files)

        with pytest.raises(DataIdentifierNotFound):
            self.did_client.add_files_to_dataset(scope=tmp_scope, name=tmp_dsn, files=files)

        files = []
        for i in range(5):
            lfn = 'lfn.%(tmp_dsn)s.' % locals() + str(generate_uuid())
            pfn = 'mock://localhost/tmp/rucio_rse/%(project)s/%(version)s/%(prod_step)s' % dataset_meta
            # it doesn't work with mock: TBF
            # pfn = 'srm://mock2.com:2880/pnfs/rucio/disk-only/scratchdisk/rucio_tests/%(project)s/%(version)s/%(prod_step)s' % dataset_meta
            pfn += '%(tmp_dsn)s/%(lfn)s' % locals()
            file_meta = {'guid': str(generate_uuid()), 'events': 10}
            files.append({'scope': InternalScope(tmp_scope, **self.vo), 'name': lfn,
                          'bytes': 724963570, 'adler32': '0cc737eb',
                          'pfn': pfn, 'meta': file_meta})

        rules = [{'copies': 1, 'rse_expression': 'CERN-PROD_TZERO', 'lifetime': timedelta(days=2), 'account': 'root'}]

        with pytest.raises(InvalidPath):
            self.did_client.add_dataset(scope=tmp_scope, name=tmp_dsn, statuses={'monotonic': True}, meta=dataset_meta, rules=rules, files=files, rse=tmp_rse)

        files_without_pfn = [{'scope': i['scope'], 'name': i['name'], 'bytes': i['bytes'], 'adler32': i['adler32'], 'meta': i['meta']} for i in files]
        self.did_client.add_dataset(scope=tmp_scope, name=tmp_dsn, statuses={'monotonic': True}, meta=dataset_meta, rules=rules, files=files_without_pfn, rse=tmp_rse)

        with pytest.raises(DataIdentifierAlreadyExists):
            self.did_client.add_dataset(scope=tmp_scope, name=tmp_dsn, files=files, rse=tmp_rse)

        files = []
        for i in range(5):
            lfn = '%(tmp_dsn)s.' % locals() + str(generate_uuid())
            pfn = 'mock://localhost/tmp/rucio_rse/%(project)s/%(version)s/%(prod_step)s' % dataset_meta
            # it doesn't work with mock: TBF
            # pfn = 'srm://mock2.com:2880/pnfs/rucio/disk-only/scratchdisk/rucio_tests/%(project)s/%(version)s/%(prod_step)s' % dataset_meta
            pfn += '%(tmp_dsn)s/%(lfn)s' % locals()
            file_meta = {'guid': str(generate_uuid()), 'events': 100}
            files.append({'scope': InternalScope(tmp_scope, **self.vo), 'name': lfn,
                          'bytes': 724963570, 'adler32': '0cc737eb',
                          'pfn': pfn, 'meta': file_meta})
        rules = [{'copies': 1, 'rse_expression': 'CERN-PROD_TZERO', 'lifetime': timedelta(days=2)}]

        with pytest.raises(InvalidPath):
            self.did_client.add_files_to_dataset(scope=tmp_scope, name=tmp_dsn, files=files, rse=tmp_rse)
        files_without_pfn = [{'scope': i['scope'], 'name': i['name'], 'bytes': i['bytes'], 'adler32': i['adler32'], 'meta': i['meta']} for i in files]
        self.did_client.add_files_to_dataset(scope=tmp_scope, name=tmp_dsn, files=files_without_pfn, rse=tmp_rse)

        self.did_client.close(scope=tmp_scope, name=tmp_dsn)

        tmp_dsn_output = 'dsn_%s' % generate_uuid()
        self.did_client.create_did_sample(input_scope=tmp_scope, input_name=tmp_dsn, output_scope=tmp_scope, output_name=tmp_dsn_output, nbfiles=2)
        files = [f for f in self.did_client.list_files(scope=tmp_scope, name=tmp_dsn_output)]
        assert len(files) == 2

    def test_attach_dids_to_dids(self):
        """ DATA IDENTIFIERS (CLIENT): Attach dids to dids"""
        tmp_scope = 'mock'
        tmp_rse = 'MOCK'
        nb_datasets = 5
        nb_files = 5
        attachments, dsns = list(), list()
        guid_to_query = None
        dsn = {}
        for i in range(nb_datasets):
            attachment = {}
            attachment['scope'] = tmp_scope
            attachment['name'] = 'dsn.%s' % str(generate_uuid())
            attachment['rse'] = tmp_rse
            files = []
            for i in range(nb_files):
                files.append({'scope': tmp_scope, 'name': 'lfn.%s' % str(generate_uuid()),
                              'bytes': 724963570, 'adler32': '0cc737eb',
                              'meta': {'guid': str(generate_uuid()), 'events': 100}})
            attachment['dids'] = files
            guid_to_query = files[0]['meta']['guid']
            dsn = {'scope': tmp_scope, 'name': attachment['name']}
            dsns.append(dsn)
            attachments.append(attachment)

        self.did_client.add_datasets(dsns=dsns)
        self.did_client.attach_dids_to_dids(attachments=attachments)
        dsns_l = [i for i in self.did_client.get_dataset_by_guid(guid_to_query)]

        assert [dsn] == dsns_l

        cnt_name = 'cnt_%s' % generate_uuid()
        self.did_client.add_container(scope='mock', name=cnt_name)
        with pytest.raises(UnsupportedOperation):
            self.did_client.attach_dids_to_dids([{'scope': 'mock', 'name': cnt_name, 'rse': tmp_rse, 'dids': attachment['dids']}])

    def test_add_files_to_datasets(self):
        """ DATA IDENTIFIERS (CLIENT): Add files to Datasets"""
        tmp_scope = 'mock'
        tmp_rse = 'MOCK'
        dsn1 = 'dsn.%s' % str(generate_uuid())
        dsn2 = 'dsn.%s' % str(generate_uuid())
        meta = {'transient': True}
        files1, files2, nb_files = [], [], 5
        for i in range(nb_files):
            files1.append({'scope': tmp_scope, 'name': 'lfn.%s' % str(generate_uuid()),
                           'bytes': 724963570, 'adler32': '0cc737eb',
                           'meta': {'guid': str(generate_uuid()), 'events': 100}})
            files2.append({'scope': tmp_scope, 'name': 'lfn.%s' % str(generate_uuid()),
                           'bytes': 724963570, 'adler32': '0cc737eb',
                           'meta': {'guid': str(generate_uuid()), 'events': 100}})

        self.did_client.add_dataset(scope=tmp_scope, name=dsn1, files=files1,
                                    rse=tmp_rse, meta=meta)
        self.did_client.add_dataset(scope=tmp_scope, name=dsn2, files=files2,
                                    rse=tmp_rse, meta=meta)

        attachments = [{'scope': tmp_scope, 'name': dsn1, 'dids': files2, 'rse': tmp_rse},
                       {'scope': tmp_scope, 'name': dsn2, 'dids': files1, 'rse': tmp_rse}]

        self.did_client.add_files_to_datasets(attachments)

        files = [f for f in self.did_client.list_files(scope=tmp_scope, name=dsn1)]
        assert len(files) == 10

        with pytest.raises(FileAlreadyExists):
            self.did_client.add_files_to_datasets(attachments)

        for attachment in attachments:
            for i in range(nb_files):
                attachment['dids'].append({'scope': tmp_scope,
                                           'name': 'lfn.%s' % str(generate_uuid()),
                                           'bytes': 724963570,
                                           'adler32': '0cc737eb',
                                           'meta': {'guid': str(generate_uuid()),
                                                    'events': 100}})

        self.did_client.add_files_to_datasets(attachments, ignore_duplicate=True)

        files = [f for f in self.did_client.list_files(scope=tmp_scope, name=dsn1)]
        assert len(files) == 15

        # Corrupt meta-data
        files = []
        for attachment in attachments:
            for file in attachment['dids']:
                file['bytes'] = 1000
                break

        with pytest.raises(FileConsistencyMismatch):
            self.did_client.add_files_to_datasets(attachments, ignore_duplicate=True)

    def test_add_dataset(self):
        """ DATA IDENTIFIERS (CLIENT): Add dataset """
        tmp_scope = 'mock'
        tmp_dsn = 'dsn_%s' % generate_uuid()

        self.did_client.add_dataset(scope=tmp_scope, name=tmp_dsn, meta={'project': 'data13_hip'})

        did = self.did_client.get_did(tmp_scope, tmp_dsn)

        assert did['scope'] == tmp_scope
        assert did['name'] == tmp_dsn

        with pytest.raises(DataIdentifierNotFound):
            self.did_client.get_did('i_dont_exist', 'neither_do_i')

    def test_add_datasets(self):
        """ DATA IDENTIFIERS (CLIENT): Bulk add datasets """
        tmp_scope = 'mock'
        dsns = list()
        for i in range(500):
            tmp_dsn = {'name': 'dsn_%s' % generate_uuid(), 'scope': tmp_scope, 'meta': {'project': 'data13_hip'}, 'account': 'root'}
            dsns.append(tmp_dsn)
        self.did_client.add_datasets(dsns)

    def test_exists(self):
        """ DATA IDENTIFIERS (CLIENT): Check if data identifier exists """
        tmp_scope = 'mock'
        tmp_file = 'file_%s' % generate_uuid()
        tmp_rse = 'MOCK'

        self.replica_client.add_replica(tmp_rse, tmp_scope, tmp_file, 1, '0cc737eb')

        did = self.did_client.get_did(tmp_scope, tmp_file)

        assert did['scope'] == tmp_scope
        assert did['name'] == tmp_file

        with pytest.raises(DataIdentifierNotFound):
            self.did_client.get_did('i_dont_exist', 'neither_do_i')

    def test_did_hierarchy(self):
        """ DATA IDENTIFIERS (CLIENT): Check did hierarchy rule """

        account = 'jdoe'
        rse = 'MOCK'
        scope = scope_name_generator()
        file = ['file_%s' % generate_uuid() for i in range(10)]
        dst = ['dst_%s' % generate_uuid() for i in range(4)]
        cnt = ['cnt_%s' % generate_uuid() for i in range(4)]

        self.scope_client.add_scope(account, scope)

        for i in range(10):
            self.replica_client.add_replica(rse, scope, file[i], 1, '0cc737eb')
        for i in range(4):
            self.did_client.add_did(scope, dst[i], 'DATASET', statuses=None, meta=None, rules=None)
        for i in range(4):
            self.did_client.add_did(scope, cnt[i], 'CONTAINER', statuses=None, meta=None, rules=None)

        for i in range(4):
            self.did_client.add_files_to_dataset(scope, dst[i], [{'scope': scope, 'name': file[2 * i], 'bytes': 1, 'adler32': '0cc737eb'},
                                                                 {'scope': scope, 'name': file[2 * i + 1], 'bytes': 1, 'adler32': '0cc737eb'}])

        self.did_client.add_containers_to_container(scope, cnt[1], [{'scope': scope, 'name': cnt[2]}, {'scope': scope, 'name': cnt[3]}])
        self.did_client.add_datasets_to_container(scope, cnt[0], [{'scope': scope, 'name': dst[1]}, {'scope': scope, 'name': dst[2]}])

        result = self.did_client.scope_list(scope, recursive=True)
        for r in result:
            pass
            # TODO: fix, fix, fix
            # if r['name'] == cnt[1]:
            #    assert r['type'] == 'container'
            #    assert r['level'] == 0
            # if (r['name'] == cnt[0]) or (r['name'] == dst[0]) or (r['name'] == file[8]) or (r['name'] == file[9]):
            #    assert r['level'] == 0
            # else:
            #     assert r['level'] == 1

    def test_detach_did(self):
        """ DATA IDENTIFIERS (CLIENT): Detach dids from a did"""

        account = 'jdoe'
        rse = 'MOCK'
        scope = scope_name_generator()
        file = ['file_%s' % generate_uuid() for i in range(10)]
        dst = ['dst_%s' % generate_uuid() for i in range(5)]
        cnt = ['cnt_%s' % generate_uuid() for i in range(2)]

        self.scope_client.add_scope(account, scope)

        for i in range(10):
            self.replica_client.add_replica(rse, scope, file[i], 1, '0cc737eb')
        for i in range(5):
            self.did_client.add_dataset(scope, dst[i], statuses=None, meta=None, rules=None)
        for i in range(2):
            self.did_client.add_container(scope, cnt[i], statuses=None, meta=None, rules=None)

        for i in range(5):
            self.did_client.add_files_to_dataset(scope, dst[i], [{'scope': scope, 'name': file[2 * i], 'bytes': 1, 'adler32': '0cc737eb'},
                                                                 {'scope': scope, 'name': file[2 * i + 1], 'bytes': 1, 'adler32': '0cc737eb'}])

        self.did_client.add_containers_to_container(scope, cnt[1], [{'scope': scope, 'name': dst[2]}, {'scope': scope, 'name': dst[3]}])

        with pytest.raises(UnsupportedOperation):
            self.did_client.add_datasets_to_container(scope, cnt[0], [{'scope': scope, 'name': dst[1]}, {'scope': scope, 'name': cnt[1]}])

        self.did_client.add_datasets_to_container(scope, cnt[0], [{'scope': scope, 'name': dst[1]}, {'scope': scope, 'name': dst[2]}])

        self.did_client.detach_dids(scope, cnt[0], [{'scope': scope, 'name': dst[1]}])
        self.did_client.detach_dids(scope, dst[3], [{'scope': scope, 'name': file[6]}, {'scope': scope, 'name': file[7]}])
        result = self.did_client.scope_list(scope, recursive=True)
        for r in result:
            if r['name'] == dst[1]:
                assert r['level'] == 0
            if r['type'] == 'file':
                if (r['name'] in file[6:9]):
                    assert r['level'] == 0
                else:
                    assert r['level'] != 0

        with pytest.raises(UnsupportedOperation):
            self.did_client.detach_dids(scope=scope, name=cnt[0], dids=[{'scope': scope, 'name': cnt[0]}])

        self.did_client.close(scope, dst[4])
        metadata = self.did_client.get_metadata(scope, dst[4])
        i_bytes, i_length = metadata['bytes'], metadata['length']
        metadata = self.did_client.get_metadata(scope, file[8])
        file1_bytes = metadata['bytes']
        metadata = self.did_client.get_metadata(scope, file[9])
        file2_bytes = metadata['bytes']
        self.did_client.detach_dids(scope, dst[4], [{'scope': scope, 'name': file[8]}, {'scope': scope, 'name': file[9]}])
        metadata = self.did_client.get_metadata(scope, dst[4])
        f_bytes, f_length = metadata['bytes'], metadata['length']
        assert i_bytes == f_bytes + file1_bytes + file2_bytes
        assert i_length == f_length + 1 + 1

    def test_scope_list(self):
        """ DATA IDENTIFIERS (CLIENT): Add, aggregate, and list data identifiers in a scope """

        # create some dummy data
        self.tmp_accounts = ['jdoe' for i in range(3)]
        self.tmp_scopes = [scope_name_generator() for i in range(3)]
        self.tmp_rses = [rse_name_generator() for i in range(3)]
        self.tmp_files = ['file_%s' % generate_uuid() for i in range(3)]
        self.tmp_datasets = ['dataset_%s' % generate_uuid() for i in range(3)]
        self.tmp_containers = ['container_%s' % generate_uuid() for i in range(3)]

        # add dummy data to the catalogue
        for i in range(3):
            self.scope_client.add_scope(self.tmp_accounts[i], self.tmp_scopes[i])
            self.rse_client.add_rse(self.tmp_rses[i])
            self.replica_client.add_replica(self.tmp_rses[i], self.tmp_scopes[i], self.tmp_files[i], 1, '0cc737eb')

        # put files in datasets
        for i in range(3):
            for j in range(3):
                files = [{'scope': self.tmp_scopes[j], 'name': self.tmp_files[j], 'bytes': 1, 'adler32': '0cc737eb'}]
                self.did_client.add_dataset(self.tmp_scopes[i], self.tmp_datasets[j])
                self.did_client.add_files_to_dataset(self.tmp_scopes[i], self.tmp_datasets[j], files)

        # put datasets in containers
        for i in range(3):
            for j in range(3):
                datasets = [{'scope': self.tmp_scopes[j], 'name': self.tmp_datasets[j]}]
                self.did_client.add_container(self.tmp_scopes[i], self.tmp_containers[j])
                self.did_client.add_datasets_to_container(self.tmp_scopes[i], self.tmp_containers[j], datasets)

        # reverse check if everything is in order
        for i in range(3):
            result = self.did_client.scope_list(self.tmp_scopes[i], recursive=True)

            r_topdids = []
            r_otherscopedids = []
            r_scope = []
            for r in result:
                if r['level'] == 0:
                    r_topdids.append(r['scope'] + ':' + r['name'])
                    r_scope.append(r['scope'])
                if r['scope'] != self.tmp_scopes[i]:
                    r_otherscopedids.append(r['scope'] + ':' + r['name'])
                    assert r['level'] in [1, 2]

            for j in range(3):
                assert self.tmp_scopes[i] == r_scope[j]
                if j != i:
                    assert self.tmp_scopes[j] + ':' + self.tmp_files[j] in r_otherscopedids
            assert self.tmp_scopes[i] + ':' + self.tmp_files[i] not in r_topdids

    def test_get_did(self):
        """ DATA IDENTIFIERS (CLIENT): add a new data identifier and try to retrieve it back"""
        rse = 'MOCK'
        scope = 'mock'
        file = generate_uuid()
        dsn = generate_uuid()

        self.replica_client.add_replica(rse, scope, file, 1, '0cc737eb')

        did = self.did_client.get_did(scope, file)

        assert did['scope'] == scope
        assert did['name'] == file

        self.did_client.add_dataset(scope=scope, name=dsn, lifetime=10000000)
        did2 = self.did_client.get_did(scope, dsn)
        assert type(did2['expired_at']) == datetime

    def test_get_meta(self):
        """ DATA IDENTIFIERS (CLIENT): add a new meta data for an identifier and try to retrieve it back"""
        rse = 'MOCK'
        scope = 'mock'
        file = generate_uuid()
        keys = ['project', 'run_number']
        values = ['data13_hip', 12345678]

        self.replica_client.add_replica(rse, scope, file, 1, '0cc737eb')
        for i in range(2):
            self.did_client.set_metadata(scope, file, keys[i], values[i])

        meta = self.did_client.get_metadata(scope, file)

        for i in range(2):
            assert meta[keys[i]] == values[i]

    def test_list_content(self):
        """ DATA IDENTIFIERS (CLIENT): test to list contents for an identifier"""
        rse = 'MOCK'
        scope = 'mock'
        nbfiles = 5
        dataset1 = generate_uuid()
        dataset2 = generate_uuid()
        container = generate_uuid()
        files1 = [{'scope': scope, 'name': generate_uuid(), 'bytes': 1, 'adler32': '0cc737eb'} for i in range(nbfiles)]
        files2 = [{'scope': scope, 'name': generate_uuid(), 'bytes': 1, 'adler32': '0cc737eb'} for i in range(nbfiles)]

        self.did_client.add_dataset(scope, dataset1)

        with pytest.raises(DataIdentifierAlreadyExists):
            self.did_client.add_dataset(scope, dataset1)

        self.did_client.add_files_to_dataset(scope, dataset1, files1, rse=rse)

        self.did_client.add_dataset(scope, dataset2)
        self.did_client.add_files_to_dataset(scope, dataset2, files2, rse=rse)

        self.did_client.add_container(scope, container)
        datasets = [{'scope': scope, 'name': dataset1}, {'scope': scope, 'name': dataset2}]
        self.did_client.add_datasets_to_container(scope, container, datasets)

        contents = self.did_client.list_content(scope, container)

        datasets_s = [d['name'] for d in contents]
        assert dataset1 in datasets_s
        assert dataset2 in datasets_s

    def test_list_files(self):
        """ DATA IDENTIFIERS (CLIENT): List files for a container"""
        rse = 'MOCK'
        scope = 'mock'
        dataset1 = generate_uuid()
        dataset2 = generate_uuid()
        container = generate_uuid()
        files1 = []
        files2 = []
        for i in range(10):
            files1.append({'scope': scope, 'name': generate_uuid(), 'bytes': 1, 'adler32': '0cc737eb'})
            files2.append({'scope': scope, 'name': generate_uuid(), 'bytes': 1, 'adler32': '0cc737eb'})

        for i in range(10):
            self.replica_client.add_replica(rse, scope, files1[i]['name'], 1, '0cc737eb')
            self.replica_client.add_replica(rse, scope, files2[i]['name'], 1, '0cc737eb')

        self.did_client.add_dataset(scope, dataset1)
        self.did_client.add_files_to_dataset(scope, dataset1, files1)

        self.did_client.add_dataset(scope, dataset2)
        self.did_client.add_files_to_dataset(scope, dataset2, files2)
        datasets = [{'scope': scope, 'name': dataset1}, {'scope': scope, 'name': dataset2}]
        self.did_client.add_container(scope, container)
        self.did_client.add_datasets_to_container(scope, container, datasets)

        # List file content
        content = self.did_client.list_files(scope, files1[i]['name'])
        assert content is not None
        for d in content:
            assert d['name'] == files1[i]['name']

        # List container content
        for d in [{'name': x['name'], 'scope': x['scope'], 'bytes': x['bytes'], 'adler32': x['adler32']} for x in self.did_client.list_files(scope, container)]:
            assert d in files1 + files2

        # List non-existing data identifier content
        with pytest.raises(DataIdentifierNotFound):
            self.did_client.list_files(scope, 'Nimportnawak')

    def test_list_replicas(self):
        """ DATA IDENTIFIERS (CLIENT): List replicas for a container"""
        rse = 'MOCK'
        scope = 'mock'
        dsn1 = generate_uuid()
        dsn2 = generate_uuid()
        cnt = generate_uuid()
        files1 = []
        files2 = []
        for i in range(10):
            files1.append({'scope': scope, 'name': generate_uuid(), 'bytes': 1, 'adler32': '0cc737eb'})
            files2.append({'scope': scope, 'name': generate_uuid(), 'bytes': 1, 'adler32': '0cc737eb'})

        self.did_client.add_dataset(scope, dsn1)
        self.did_client.add_files_to_dataset(scope, dsn1, files1, rse=rse)

        self.did_client.add_dataset(scope, dsn2)
        self.did_client.add_files_to_dataset(scope, dsn2, files2, rse=rse)

        self.did_client.add_container(scope, cnt)
        self.did_client.add_datasets_to_container(scope, cnt, [{'scope': scope, 'name': dsn1}, {'scope': scope, 'name': dsn2}])

        replicas = self.replica_client.list_replicas(dids=[{'scope': scope, 'name': dsn1}])
        assert replicas is not None

        replicas = self.replica_client.list_replicas(dids=[{'scope': scope, 'name': cnt}])
        assert replicas is not None

    def test_close(self):
        """ DATA IDENTIFIERS (CLIENT): test to close data identifiers"""

        tmp_rse = 'MOCK'
        tmp_scope = 'mock'

        # Add dataset
        tmp_dataset = 'dsn_%s' % generate_uuid()

        # Add file replica
        tmp_file = 'file_%s' % generate_uuid()
        self.replica_client.add_replica(rse=tmp_rse, scope=tmp_scope, name=tmp_file, bytes=1, adler32='0cc737eb')

        # Add dataset
        self.did_client.add_dataset(scope=tmp_scope, name=tmp_dataset)

        # Add files to dataset
        files = [{'scope': tmp_scope, 'name': tmp_file, 'bytes': 1, 'adler32': '0cc737eb'}, ]
        self.did_client.add_files_to_dataset(scope=tmp_scope, name=tmp_dataset, files=files)

        # Add a second file replica
        tmp_file = 'file_%s' % generate_uuid()
        self.replica_client.add_replica(tmp_rse, tmp_scope, tmp_file, 1, '0cc737eb')
        # Add files to dataset
        files = [{'scope': tmp_scope, 'name': tmp_file, 'bytes': 1, 'adler32': '0cc737eb'}, ]
        self.did_client.add_files_to_dataset(scope=tmp_scope, name=tmp_dataset, files=files)

        # Close dataset
        with pytest.raises(UnsupportedStatus):
            self.did_client.set_status(scope=tmp_scope, name=tmp_dataset, close=False)
        self.did_client.set_status(scope=tmp_scope, name=tmp_dataset, open=False)

        # Add a third file replica
        tmp_file = 'file_%s' % generate_uuid()
        self.replica_client.add_replica(tmp_rse, tmp_scope, tmp_file, 1, '0cc737eb')
        # Add files to dataset
        files = [{'scope': tmp_scope, 'name': tmp_file, 'bytes': 1, 'adler32': '0cc737eb'}, ]
        with pytest.raises(exception.UnsupportedOperation):
            self.did_client.attach_dids(scope=tmp_scope, name=tmp_dataset, dids=files)

    def test_open(self):
        """ DATA IDENTIFIERS (CLIENT): test to re-open data identifiers for priv account"""

        tmp_rse = 'MOCK'
        tmp_scope = 'mock'

        # Add dataset
        tmp_dataset = 'dsn_%s' % generate_uuid()

        # Add file replica
        tmp_file = 'file_%s' % generate_uuid()
        self.replica_client.add_replica(rse=tmp_rse, scope=tmp_scope, name=tmp_file, bytes=1, adler32='0cc737eb')

        # Add dataset
        self.did_client.add_dataset(scope=tmp_scope, name=tmp_dataset)

        # Add files to dataset
        files = [{'scope': tmp_scope, 'name': tmp_file, 'bytes': 1, 'adler32': '0cc737eb'}, ]
        self.did_client.add_files_to_dataset(scope=tmp_scope, name=tmp_dataset, files=files)

        # Add a second file replica
        tmp_file = 'file_%s' % generate_uuid()
        self.replica_client.add_replica(tmp_rse, tmp_scope, tmp_file, 1, '0cc737eb')
        # Add files to dataset
        files = [{'scope': tmp_scope, 'name': tmp_file, 'bytes': 1, 'adler32': '0cc737eb'}, ]
        self.did_client.add_files_to_dataset(scope=tmp_scope, name=tmp_dataset, files=files)

        # Close dataset
        with pytest.raises(UnsupportedStatus):
            self.did_client.set_status(scope=tmp_scope, name=tmp_dataset, close=False)
        self.did_client.set_status(scope=tmp_scope, name=tmp_dataset, open=False)

        # Add a third file replica
        self.did_client.set_status(scope=tmp_scope, name=tmp_dataset, open=True)

    def test_bulk_get_meta(self):
        """ DATA IDENTIFIERS (CLIENT): Add a new meta data for a list of DIDs and try to retrieve them back"""
        key = 'project'
        rse = 'MOCK'
        scope = 'mock'
        files = ['file_%s' % generate_uuid() for _ in range(4)]
        dst = ['dst_%s' % generate_uuid() for _ in range(4)]
        cnt = ['cnt_%s' % generate_uuid() for _ in range(4)]
        meta_mapping = {}
        list_dids = []
        for idx in range(4):
            self.replica_client.add_replica(rse, scope, files[idx], 1, '0cc737eb')
            self.did_client.set_metadata(scope, files[idx], key, 'file_%s' % idx)
            list_dids.append({'scope': scope, 'name': files[idx]})
            meta_mapping['%s:%s' % (scope, files[idx])] = (key, 'file_%s' % idx)
        for idx in range(4):
            self.did_client.add_did(scope, dst[idx], 'DATASET', statuses=None, meta={key: 'dsn_%s' % idx}, rules=None)
            list_dids.append({'scope': scope, 'name': dst[idx]})
            meta_mapping['%s:%s' % (scope, dst[idx])] = (key, 'dsn_%s' % idx)
        for idx in range(4):
            self.did_client.add_did(scope, cnt[idx], 'CONTAINER', statuses=None, meta={key: 'cnt_%s' % idx}, rules=None)
            list_dids.append({'scope': scope, 'name': cnt[idx]})
            meta_mapping['%s:%s' % (scope, cnt[idx])] = (key, 'cnt_%s' % idx)
        list_meta = [_ for _ in self.did_client.get_metadata_bulk(list_dids)]
        res_list_dids = [{'scope': entry['scope'], 'name': entry['name']} for entry in list_meta]
        res_list_dids.sort(key=lambda item: item['name'])
        list_dids.sort(key=lambda item: item['name'])
        assert list_dids == res_list_dids
        for meta in list_meta:
            did = '%s:%s' % (meta['scope'], meta['name'])
            met = meta_mapping[did]
            assert (key, meta[key]) == met
        cnt = ['cnt_%s' % generate_uuid() for _ in range(4)]
        for idx in range(4):
            list_dids.append({'scope': scope, 'name': cnt[idx]})
        list_meta = [_ for _ in self.did_client.get_metadata_bulk(list_dids)]
        assert len(list_meta) == 12
        list_dids = []
        for idx in range(4):
            list_dids.append({'scope': scope, 'name': cnt[idx]})
        list_meta = [_ for _ in self.did_client.get_metadata_bulk(list_dids)]
        assert len(list_meta) == 0
