'L{ListOf.toBox} raises C{KeyError} if the argument\'s key is not
present in the objects dictionary.'

def test_requiredArgumentWithKeyMissingRaisesKeyError(self):

    stringList = amp.ListOf(amp.Integer())
    self.assertRaises(KeyError, stringList.toBox, 'ommited', amp.AmpBox(), {'someOtherKey': 0}, None)
