# Copyright 2020-2026 Leibniz Information Centre for Economics
#
# 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 numpy as np

from stwfsapy.position_features import PositionFeatures

position_feature_data = [
    (3, [3, 4, 0, 2]),
    (6, [1, 8, 23, 12]),
    (15, [12, 36, 25, 7]),
    (12, [8, 102, 17, 9, 20]),
    (70, [13]),
]


def test_handle_empty():
    features = PositionFeatures()
    assert features.transform([]).tolist() == np.zeros((0, 3)).tolist()


def test_convert_docs():
    features = PositionFeatures()
    res = features.transform(position_feature_data)
    assert res.tolist() == [
        [0 / 3, 4 / 3, 4 / 3],
        [1 / 6, 23 / 6, 22 / 6],
        [7 / 15, 36 / 15, 29 / 15],
        [8 / 12, 102 / 12, 94 / 12],
        [13 / 70, 13 / 70, 0],
    ]
