def test_empty_tag(self): self.assertEqual(no_sound('foo[sound:]'), 'foo')
def test_multiple_tags(self): self.assertEqual(no_sound('foo[sound:bar]baz[sound:qux]'), 'foobaz')
def test_no_tags(self): self.assertEqual(no_sound('foo'), 'foo')
def test_single_tag(self): self.assertEqual(no_sound('foo[sound:bar]'), 'foo')