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# SPDX-FileCopyrightText: 2024-present Hinrich Mahler <chango@mahlerhome.de>
#
# SPDX-License-Identifier: MIT
import datetime as dtm
from unittest.mock import MagicMock
import pytest
from chango import Version
from chango.concrete import BackwardCompatibleVersionScanner
from chango.error import ChanGoError
class TestBackwardCompatibleVersionScanner:
@staticmethod
def build_mock_scanners(method_name: str, expected_results: list[object]) -> list[MagicMock]:
mocks = [MagicMock() for _ in range(len(expected_results))]
for mock, result in zip(mocks, expected_results, strict=False):
method = getattr(mock, method_name)
if isinstance(result, Exception):
method.side_effect = result
else:
method.return_value = result
return mocks
@pytest.mark.parametrize(
("results", "expected"),
[
([True, False], True),
([False, False], False),
([False, True], True),
([True, True], True),
],
)
@pytest.mark.parametrize("version", ["1.0.0", "2.0.0", None])
def test_is_available(self, results, expected, version):
scanners = self.build_mock_scanners("is_available", results)
scanner = BackwardCompatibleVersionScanner(scanners)
assert scanner.is_available(version) == expected
was_true = False
for scanner, result in zip(scanners, results, strict=False):
if not was_true:
scanner.is_available.assert_called_once_with(version)
was_true = was_true or result
else:
assert not scanner.is_available.called
@pytest.mark.parametrize(
("results", "expected"),
[
([True, False], True),
([False, False], False),
([False, True], True),
([True, True], True),
],
)
def test_has_unreleased_changes(self, results, expected):
scanners = self.build_mock_scanners("has_unreleased_changes", results)
scanner = BackwardCompatibleVersionScanner(scanners)
assert scanner.has_unreleased_changes() == expected
was_true = False
for scanner, result in zip(scanners, results, strict=False):
if not was_true:
scanner.has_unreleased_changes.assert_called_once_with()
was_true = was_true or result
else:
assert not scanner.has_unreleased_changes.called
@pytest.mark.parametrize(
("results", "expected"),
[
(
[
Version("1.0.0", date=dtm.date(2025, 1, 1)),
Version("1.0.0", date=dtm.date(2025, 1, 10)),
],
Version("1.0.0", date=dtm.date(2025, 1, 10)),
),
(
[
Version("1.0.0", date=dtm.date(2025, 1, 10)),
Version("1.0.0", date=dtm.date(2025, 1, 1)),
],
Version("1.0.0", date=dtm.date(2025, 1, 10)),
),
(
[
ChanGoError("No versions available."),
Version("1.0.0", date=dtm.date(2025, 1, 10)),
],
Version("1.0.0", date=dtm.date(2025, 1, 10)),
),
(
[ChanGoError("No versions available."), ChanGoError("No versions available.")],
ChanGoError("No versions available."),
),
],
)
def test_get_latest_version(self, results, expected):
scanners = self.build_mock_scanners("get_latest_version", results)
scanner = BackwardCompatibleVersionScanner(scanners)
if isinstance(expected, ChanGoError):
with pytest.raises(ChanGoError, match=r"No versions available."):
scanner.get_latest_version()
else:
assert scanner.get_latest_version() == expected
for scanner in scanners:
scanner.get_latest_version.assert_called_once_with()
@pytest.mark.parametrize(
("results", "expected"),
[
(
[
(Version("1.0.0", dtm.date.today()), Version("1.0.1", dtm.date.today())),
(Version("2.0.0", dtm.date.today()), Version("2.0.1", dtm.date.today())),
],
(
Version("1.0.0", dtm.date.today()),
Version("1.0.1", dtm.date.today()),
Version("2.0.0", dtm.date.today()),
Version("2.0.1", dtm.date.today()),
),
),
(
[(Version("1.0.0", dtm.date.today()), Version("1.0.1", dtm.date.today())), []],
(Version("1.0.0", dtm.date.today()), Version("1.0.1", dtm.date.today())),
),
],
)
def test_get_available_versions(self, results, expected):
scanners = self.build_mock_scanners("get_available_versions", results)
scanner = BackwardCompatibleVersionScanner(scanners)
start_from = object()
end_at = object()
assert scanner.get_available_versions(start_from=start_from, end_at=end_at) == expected
for scanner in scanners:
scanner.get_available_versions.assert_called_once_with(start_from, end_at)
@pytest.mark.parametrize(
("results", "expected"),
[
(
[
ChanGoError("Change note '1.0.0' not available."),
ChanGoError("Change note '1.0.0' not available."),
],
ChanGoError("Change note '1.0.0' not available."),
),
(
[
"ReturnValueA",
ChanGoError("Change note '1.0.0' not available."),
"ReturnValueB",
],
"ReturnValueA",
),
(
[
ChanGoError("Change note '1.0.0' not available."),
"ReturnValueA",
"ReturnValueB",
],
"ReturnValueA",
),
],
)
@pytest.mark.parametrize("method_name", ["lookup_change_note", "get_changes"])
def test_lookup_change_note_get_changes(self, results, expected, method_name):
scanners = self.build_mock_scanners(method_name, results)
scanner = BackwardCompatibleVersionScanner(scanners)
method_object = getattr(scanner, method_name)
uid = object()
if isinstance(expected, ChanGoError):
with pytest.raises(ChanGoError, match=r"not available."):
method_object(uid)
else:
assert method_object(uid) == expected
has_returned = False
for scanner, result in zip(scanners, results, strict=False):
if not has_returned:
getattr(scanner, method_name).assert_called_once_with(uid)
has_returned = has_returned or not isinstance(result, ChanGoError)
else:
assert not getattr(scanner, method_name).called
def test_invalidate_caches(self):
scanners = self.build_mock_scanners("invalidate_caches", [None, None])
scanner = BackwardCompatibleVersionScanner(scanners)
scanner.invalidate_caches()
for scanner in scanners:
scanner.invalidate_caches.assert_called_once_with()
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