def test_mime_lookup_given_correct_value(self):
value = "application/atom+xml"
expected_result = ".atom"
self.assertEqual(mime_lookup(value), expected_result)
def test_mime_lookup_given_unknown_type(self):
value = "this_mime_doesn't_exist"
with self.assertRaises(HeaderError):
mime_lookup(value)
def test_mime_lookup_given_blank_value(self):
value = ""
expected_result = ".html"
self.assertEqual(mime_lookup(value), expected_result)