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"""
Copyright (c) 2024 Proton AG
This file is part of Proton VPN.
Proton VPN is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Proton VPN is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with ProtonVPN. If not, see <https://www.gnu.org/licenses/>.
"""
from unittest.mock import Mock, patch
import pytest
import time
from proton.vpn.session.feature_flags_fetcher import FeatureFlagsFetcher, FeatureFlags
EXPIRATION_TIME = time.time()
@pytest.fixture
def api_data():
TEST_DATA = {
"Code": 1000,
"toggles": [
{
"name": "EnabledInApiDisabledInDefault",
"enabled": True,
"impressionData": False,
"variant": {
"name": "disabled",
"enabled": False
}
},
{
"name": "DisabledInApiEnabledInDefault",
"enabled": False,
"impressionData": False,
"variant": {
"name": "disabled",
"enabled": False
}
},
]
}
return TEST_DATA
@pytest.fixture
def default_data():
TEST_DATA = {
"toggles": [
{
"name": "EnabledInApiDisabledInDefault",
"enabled": False,
"impressionData": False,
"variant": {
"name": "disabled",
"enabled": False
}
},
{
"name": "DisabledInApiEnabledInDefault",
"enabled": True,
"impressionData": False,
"variant": {
"name": "disabled",
"enabled": False
}
}
]
}
return TEST_DATA
@patch("proton.vpn.session.feature_flags_fetcher.rest_api_request")
@pytest.mark.asyncio
async def test_fetch_returns_feature_flags_from_proton_rest_api(mock_rest_api_request, api_data):
mock_cache_handler = Mock()
mock_refresh_calculator = Mock()
expiration_time_in_seconds = 10
mock_refresh_calculator.get_expiration_time.return_value = expiration_time_in_seconds
mock_rest_api_request.return_value = api_data
ff = FeatureFlagsFetcher(Mock(), mock_refresh_calculator, mock_cache_handler)
features = await ff.fetch()
assert features.get("EnabledInApiDisabledInDefault") == True
assert features.get("DisabledInApiEnabledInDefault") == False
def test_load_from_cache_returns_feature_flags_from_cache(api_data):
mock_cache_handler = Mock()
expiration_time_in_seconds = time.time()
api_data["ExpirationTime"] = expiration_time_in_seconds
mock_cache_handler.load.return_value = api_data
ff = FeatureFlagsFetcher(Mock(), Mock(), mock_cache_handler)
features = ff.load_from_cache()
assert features.get("EnabledInApiDisabledInDefault") == True
assert features.get("DisabledInApiEnabledInDefault") == False
@patch('proton.vpn.session.feature_flags_fetcher.FeatureFlags.default')
def test_load_from_cache_returns_default_feature_flags_when_no_cache_is_found(feature_flags_mock,default_data):
feature_flags_mock.return_value = FeatureFlags(default_data)
mock_cache_handler = Mock()
mock_cache_handler.load.return_value = None
ff = FeatureFlagsFetcher(Mock(), Mock(), mock_cache_handler)
features = ff.load_from_cache()
assert features.get("EnabledInApiDisabledInDefault") == False
assert features.get("DisabledInApiEnabledInDefault") == True
def test_get_feature_flag_returns_false_when_feature_flag_does_not_exist(api_data):
mock_cache_handler = Mock()
mock_cache_handler.load.return_value = api_data
ff = FeatureFlagsFetcher(Mock(), Mock(), mock_cache_handler)
features = ff.load_from_cache()
assert features.get("dummy-feature") is False
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