def test_empty(self):
"""
``None`` or empty messages result in no fields.
"""
self.assertThat(message_fields(None, set()), Equals([]))
message = WrittenMessage.from_dict({})
self.assertThat(message_fields(message, set()), Equals([]))
def test_fields(self):
"""
Include all the message fields but not the timestamp.
"""
message = WrittenMessage.from_dict({u'a': 1})
self.assertThat(message_fields(message, set()), Equals([(u'a', 1)]))
message = WrittenMessage.from_dict({u'a': 1, u'timestamp': 12345678})
self.assertThat(message_fields(message, set()), Equals([(u'a', 1)]))
def test_ignored_fields(self):
"""
Ignore any specified fields.
"""
message = WrittenMessage.from_dict({u'a': 1, u'b': 2})
self.assertThat(
message_fields(message, {u'b'}),
Equals([(u'a', 1)]))