'For each pair of corresponding elements in C{sets} and C{subsets},
assert that the element from C{subsets} is a subset of the element from
C{sets}.'

def assertDictSubsets(self, sets, subsets):

    self.assertEqual(len(sets), len(subsets))
    for (a, b) in zip(sets, subsets):
        self.assertDictSubset(a, b)
