def METHOD_NAME(self):
    """Test that the tests are PEP8 compliant."""
    # Use pep8 module to detect 'W' and 'E' errors
    checker = pycodestyle.StyleGuide(
        quiet=True,
        paths=self.files,
        reporter=CustomReport,
    )
    checker.options.max_line_length = 128
    report = checker.check_files()
    self.assertEqual(
        report.total_errors, 0,
        msg='PEP8 errors:\n%s' % (report)
    )
    # Use flakes module to detect 'F' errors
    reporter = FlakesReporter()
    for fileName in self.files:
        checkFlakesPath(fileName, reporter)
    self.assertTrue(
        not reporter.error,
        msg='PEP8 errors:\n%s' % (reporter.error)
    )