def test_serialize_invalid_isbn(self):
serialized = serialize("default", "123456789")
self.assertEqual(b"", serialized)
serialized = serialize("default", "123456789012")
self.assertEqual(b"", serialized)
serialized = serialize("default", "123456789012a")
self.assertEqual(b"", serialized)
def test_serialize_invalid_voice(self):
serialized = serialize("/", "1234567890123")
self.assertEqual(b"", serialized)
serialized = serialize(".", "1234567890123")
self.assertEqual(b"", serialized)
serialized = serialize("", "1234567890123")
self.assertEqual(b"", serialized)
def test_serialize_empty(self):
serialized = serialize("", "")
self.assertEqual(b"", serialized)
serialized = serialize("", "1234567890123")
self.assertEqual(b"", serialized)
def test_serialize_valid(self):
serialized = serialize("default", "1234567890123")
self.assertEqual(b"default/1234567890123", serialized)
serialized = serialize("nabaztag", "1234567890")
self.assertEqual(b"nabaztag/1234567890", serialized)
