def test_as_but_no_rate(self):
tv = TimeValue(TimeOffset(4))
with self.assertRaises(ValueError):
tv.as_count()
tv = TimeValue(100)
with self.assertRaises(ValueError):
tv.as_timeoffset()
def test_as_count(self):
tv = TimeValue(100)
ct = tv.as_count()
self.assertEqual(ct, 100)
tv = TimeValue(TimeOffset(4), rate=Fraction(25))
ct = tv.as_count()
self.assertEqual(ct, 100)