Tests for parts of our release automation system.
| Class | SetupTests | Tests for getSetupArgs. |
| Class | OptionalDependenciesTests | Tests for _EXTRAS_REQUIRE |
| Class | FakeModule | A fake module, suitable for dependency injection in testing. |
| Class | WithPlatformTests | Tests for _checkCPython
when used with a (fake) platform module. |
| Class | BuildPy3Tests | Tests for BuildPy3. |
| Class | LongDescriptionTests | Tests for _getLongDescriptionArgs() |