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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, DEFAULT, FeatureFlags
EXPIRATION_TIME = time.time()
@pytest.fixture
def apidata():
return {
"Code": 1000,
"toggles": DEFAULT["toggles"]
}
@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, apidata):
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 = apidata
ff = FeatureFlagsFetcher(Mock(), mock_refresh_calculator, mock_cache_handler)
features = await ff.fetch()
assert features.get("LinuxBetaToggle") == apidata["toggles"][0]["enabled"]
assert features.get("WireGuardExperimental") == apidata["toggles"][1]["enabled"]
assert features.get("TimestampedLogicals") == apidata["toggles"][2]["enabled"]
def test_load_from_cache_returns_feature_flags_from_cache(apidata):
mock_cache_handler = Mock()
expiration_time_in_seconds = time.time()
apidata["ExpirationTime"] = expiration_time_in_seconds
mock_cache_handler.load.return_value = apidata
ff = FeatureFlagsFetcher(Mock(), Mock(), mock_cache_handler)
features = ff.load_from_cache()
assert features.get("LinuxBetaToggle") == apidata["toggles"][0]["enabled"]
assert features.get("WireGuardExperimental") == apidata["toggles"][1]["enabled"]
assert features.get("TimestampedLogicals") == apidata["toggles"][2]["enabled"]
def test_load_from_cache_returns_default_feature_flags_when_no_cache_is_found():
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("LinuxBetaToggle") == DEFAULT["toggles"][0]["enabled"]
assert features.get("WireGuardExperimental") == DEFAULT["toggles"][1]["enabled"]
assert features.get("TimestampedLogicals") == DEFAULT["toggles"][2]["enabled"]
def test_get_feature_flag_returns_false_when_feature_flag_does_not_exist(apidata):
mock_cache_handler = Mock()
mock_cache_handler.load.return_value = apidata
ff = FeatureFlagsFetcher(Mock(), Mock(), mock_cache_handler)
features = ff.load_from_cache()
assert features.get("dummy-feature") is False
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