def test_max_label_zero_confidence(self) -> None:
"""
Test that if there *are* classifications but the maximum conf is 0 that
at least one label is returned.
"""
# Mock classification element instance
e = mock.MagicMock(spec_set=ClassificationElement)
e.get_classification.return_value = {'a': 0.0}
ClassificationElement.max_label(e)
def test_max_label(self) -> None:
"""
Test that max_label correctly returns the label key associated with
the greatest associated confidence value.
"""
# Mock classification element instance
#: :type: ClassificationElement
e = mock.MagicMock(spec_set=ClassificationElement)
e.get_classification.return_value = {1: 0, 2: 1, 3: 0.5}
expected_label = 2
actual_label = ClassificationElement.max_label(e)
self.assertEqual(actual_label, expected_label)