def METHOD_NAME(self):
    """Test the domain list that is returned from Github.
    This does not mock out the external file, it is actually fetched from
    the internet.
    """
    domains = _domains()
    self.assertIn("gsa.gov", domains)
    # entries are all lowercase so GSA.GOV is not in the set
    self.assertNotIn("GSA.GOV", domains)
    self.assertNotIn("igorville.gov", domains)
    # all the entries have dots
    self.assertNotIn("gsa", domains)