'An attribute with no text assembles to the empty string. An attribute
whose text is the empty string assembles to two control codes: C{off}
and that of the attribute.'

def test_assembleEmpty(self):

    self.assertEqual(irc.assembleFormattedText(A.normal), '')
    self.assertEqual(irc.assembleFormattedText(A.bold['']), '\x0f\x02')
