'Fail if the second object is in the first.
Fail the test if ``first`` contains ``second``, as
determined by the ``in`` operator.'

def failIfIn(self, first, second, msg=None):

    if (second in first):
        if (msg is None):
            msg = ('%(second)r    is    in    %(first)r' % vars())
        raise self.failureException(msg)
