@test.support.anticipate_failure(condition) A decorator to conditionally mark tests with

test.support.captured_stdin() test.support.captured_stdout() test.support.captured_stderr()

call_args This is either None (if the mock hasn’t been called), or the arguments that the mock was last called

failfast If set to true stop() will be called on the first failure or error, halting the test run.

output_difference(example, got, optionflags) Return a string describing the differences between the expected output for a given

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test.support.bind_port(sock, host=HOST) Bind the socket to a free port and return the port number. Relies on ephemeral ports

test.support.temp_dir(path=None, quiet=False) A context manager that creates a temporary directory at path and yields

doctest.debug_src(src, pm=False, globs=None) Debug the doctests in a string. This is like function

run(test) This method is the main public interface to the TextTestRunner. This method takes a TestSuite