test.support.temp_umask(umask) A context manager that temporarily sets the process umask.

class unittest.mock.NonCallableMagicMock(*args, **kw) A non-callable version of MagicMock. The

assertSetEqual(first, second, msg=None) Tests that two sets are equal. If not, an error message is constructed that lists the

maxDiff This attribute controls the maximum length of diffs output by assert methods that report diffs on failure. It defaults

doctest.register_optionflag(name) Create a new option flag with a given name, and return the new flag’s integer value.

class typing.Union Union type; Union[X, Y] means either X or Y. To define a union

class unittest.TestSuite(tests=()) This class represents an aggregation of individual tests cases and test suites. The class

patch.dict(in_dict, values=(), clear=False, **kwargs) Patch a dictionary, or dictionary like object, and restore the dictionary

run(result=None) Run the test, collecting the result into the TestResult object passed as result. If result

test.support.import_module(name, deprecated=False) This function imports and returns the named module. Unlike a normal import