tests/test_mypy.py


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import os

try:
    import mypy.test.testcmdline
    from mypy.test.helpers import normalize_error_messages
except (ImportError, AssertionError):
    if os.environ.get('IMMU_SKIP_MYPY_TESTS'):
        pass
    else:
        raise
else:
    # I'm upset. There's no other way to deal with the little 'defined here'
    # notes that mypy emits when passing an unexpected keyword argument
    # and at no other time.
    def renormalize_error_messages(messages):
        messages = [x for x in messages if not x.endswith(' defined here')]
        return normalize_error_messages(messages)

    mypy.test.testcmdline.normalize_error_messages = renormalize_error_messages

    this_file_dir = os.path.dirname(os.path.realpath(__file__))
    test_data_prefix = os.path.join(this_file_dir, 'test-data')

    class ImmuMypyTest(mypy.test.testcmdline.PythonCmdlineSuite):
        data_prefix = test_data_prefix
        files = ['check-immu.test']