def testSingleElem(self): self.assertEqual(perm.permutation([1]), [[1]])
def testZeroElem(self): self.assertEqual(perm.permutation([]), [[]])
def testGeneralCase(self): self.assertEqual( perm.permutation([1, 2, 3]), [[1, 2, 3], [1, 3, 2], [2, 1, 3], [2, 3, 1], [3, 1, 2], [3, 2, 1]])
def testGeneralCase(self): self.assertEqual( perm.permutation([1, 2, 3]), [[1, 2, 3], [1, 3, 2], [2, 1, 3], [2, 3, 1], [3, 1, 2], [3, 2, 1]] )