def test_parse_time(self):
"""Ensure that times are parsed correctly into seconds."""
expected = 247
output = VideoAlphaDescriptor._parse_time('00:04:07')
self.assertEqual(output, expected)
def test_parse_time_empty(self):
"""Ensure parse_time returns correctly with None or empty string."""
expected = ''
self.assertEqual(VideoAlphaDescriptor._parse_time(None), expected)
self.assertEqual(VideoAlphaDescriptor._parse_time(''), expected)
