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2eef234ae3
* Add failing test to characterise the regression #12176 * Permit pre-release versions of specified packages * Newsfile (bugfix) Signed-off-by: Olivier Wilkinson (reivilibre) <oliverw@matrix.org>
131 lines
4.9 KiB
Python
131 lines
4.9 KiB
Python
from contextlib import contextmanager
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from typing import Generator, Optional
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from unittest.mock import patch
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from synapse.util.check_dependencies import (
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DependencyException,
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check_requirements,
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metadata,
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)
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from tests.unittest import TestCase
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class DummyDistribution(metadata.Distribution):
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def __init__(self, version: str):
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self._version = version
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@property
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def version(self):
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return self._version
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def locate_file(self, path):
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raise NotImplementedError()
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def read_text(self, filename):
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raise NotImplementedError()
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old = DummyDistribution("0.1.2")
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old_release_candidate = DummyDistribution("0.1.2rc3")
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new = DummyDistribution("1.2.3")
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new_release_candidate = DummyDistribution("1.2.3rc4")
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# could probably use stdlib TestCase --- no need for twisted here
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class TestDependencyChecker(TestCase):
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@contextmanager
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def mock_installed_package(
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self, distribution: Optional[DummyDistribution]
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) -> Generator[None, None, None]:
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"""Pretend that looking up any distribution yields the given `distribution`."""
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def mock_distribution(name: str):
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if distribution is None:
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raise metadata.PackageNotFoundError
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else:
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return distribution
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with patch(
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"synapse.util.check_dependencies.metadata.distribution",
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mock_distribution,
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):
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yield
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def test_mandatory_dependency(self) -> None:
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"""Complain if a required package is missing or old."""
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with patch(
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"synapse.util.check_dependencies.metadata.requires",
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return_value=["dummypkg >= 1"],
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):
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with self.mock_installed_package(None):
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self.assertRaises(DependencyException, check_requirements)
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with self.mock_installed_package(old):
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self.assertRaises(DependencyException, check_requirements)
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with self.mock_installed_package(new):
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# should not raise
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check_requirements()
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def test_checks_ignore_dev_dependencies(self) -> None:
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"""Bot generic and per-extra checks should ignore dev dependencies."""
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with patch(
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"synapse.util.check_dependencies.metadata.requires",
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return_value=["dummypkg >= 1; extra == 'mypy'"],
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), patch("synapse.util.check_dependencies.RUNTIME_EXTRAS", {"cool-extra"}):
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# We're testing that none of these calls raise.
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with self.mock_installed_package(None):
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check_requirements()
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check_requirements("cool-extra")
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with self.mock_installed_package(old):
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check_requirements()
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check_requirements("cool-extra")
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with self.mock_installed_package(new):
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check_requirements()
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check_requirements("cool-extra")
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def test_generic_check_of_optional_dependency(self) -> None:
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"""Complain if an optional package is old."""
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with patch(
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"synapse.util.check_dependencies.metadata.requires",
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return_value=["dummypkg >= 1; extra == 'cool-extra'"],
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):
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with self.mock_installed_package(None):
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# should not raise
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check_requirements()
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with self.mock_installed_package(old):
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self.assertRaises(DependencyException, check_requirements)
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with self.mock_installed_package(new):
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# should not raise
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check_requirements()
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def test_check_for_extra_dependencies(self) -> None:
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"""Complain if a package required for an extra is missing or old."""
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with patch(
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"synapse.util.check_dependencies.metadata.requires",
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return_value=["dummypkg >= 1; extra == 'cool-extra'"],
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), patch("synapse.util.check_dependencies.RUNTIME_EXTRAS", {"cool-extra"}):
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with self.mock_installed_package(None):
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self.assertRaises(DependencyException, check_requirements, "cool-extra")
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with self.mock_installed_package(old):
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self.assertRaises(DependencyException, check_requirements, "cool-extra")
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with self.mock_installed_package(new):
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# should not raise
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check_requirements("cool-extra")
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def test_release_candidates_satisfy_dependency(self) -> None:
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"""
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Tests that release candidates count as far as satisfying a dependency
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is concerned.
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(Regression test, see #12176.)
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"""
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with patch(
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"synapse.util.check_dependencies.metadata.requires",
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return_value=["dummypkg >= 1"],
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):
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with self.mock_installed_package(old_release_candidate):
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self.assertRaises(DependencyException, check_requirements)
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with self.mock_installed_package(new_release_candidate):
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# should not raise
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check_requirements()
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