ExecuteWithOptionsNew is the same thing as ExecuteWithOptions, but uses the new in-house parser.

ExecuteWithOptionsNewContext is the same thing as ExecuteWithOptionsNew, but allows the caller to set a context.

NeedsContainerization skips the test when running on CI, but no container backend configured.

TempChdir switches to a temporary per-test directory.

TempChdirPopulatedWith creates a temporary per-test directory filled with sourceDir contents and switches to it.

tempDir supplements an alternative to TB.TempDir()[1], which is only available in 1.15.

TempChdirPopulatedWith creates a temporary per-test directory filled with sourceDir contents and switches to it.