def test_multiset_permutations(): ans = [ 'abby', 'abyb', 'aybb', 'baby', 'bayb', 'bbay', 'bbya', 'byab', 'byba', 'yabb', 'ybab', 'ybba' ] assert [''.join(i) for i in multiset_permutations('baby')] == ans assert [''.join(i) for i in multiset_permutations(multiset('baby'))] == ans assert list(multiset_permutations([0, 0, 0], 2)) == [[0, 0]] assert list(multiset_permutations([0, 2, 1], 2)) == [[0, 1], [0, 2], [1, 0], [1, 2], [2, 0], [2, 1]] assert len(list(multiset_permutations('a', 0))) == 1 assert len(list(multiset_permutations('a', 3))) == 0 def test(): for i in range(1, 7): print(i) for p in multiset_permutations([0, 0, 1, 0, 1], i): print(p) assert capture(lambda: test()) == dedent('''\ 1 [0] [1] 2 [0, 0] [0, 1] [1, 0] [1, 1] 3 [0, 0, 0] [0, 0, 1] [0, 1, 0] [0, 1, 1] [1, 0, 0] [1, 0, 1] [1, 1, 0] 4 [0, 0, 0, 1] [0, 0, 1, 0] [0, 0, 1, 1] [0, 1, 0, 0] [0, 1, 0, 1] [0, 1, 1, 0] [1, 0, 0, 0] [1, 0, 0, 1] [1, 0, 1, 0] [1, 1, 0, 0] 5 [0, 0, 0, 1, 1] [0, 0, 1, 0, 1] [0, 0, 1, 1, 0] [0, 1, 0, 0, 1] [0, 1, 0, 1, 0] [0, 1, 1, 0, 0] [1, 0, 0, 0, 1] [1, 0, 0, 1, 0] [1, 0, 1, 0, 0] [1, 1, 0, 0, 0] 6\n''')
def test_multiset_permutations(): ans = ['abby', 'abyb', 'aybb', 'baby', 'bayb', 'bbay', 'bbya', 'byab', 'byba', 'yabb', 'ybab', 'ybba'] assert [''.join(i) for i in multiset_permutations('baby')] == ans assert [''.join(i) for i in multiset_permutations(multiset('baby'))] == ans assert list(multiset_permutations([0, 0, 0], 2)) == [[0, 0]] assert list(multiset_permutations([0, 2, 1], 2)) == [ [0, 1], [0, 2], [1, 0], [1, 2], [2, 0], [2, 1]] assert len(list(multiset_permutations('a', 0))) == 1 assert len(list(multiset_permutations('a', 3))) == 0 def test(): for i in range(1, 7): print(i) for p in multiset_permutations([0, 0, 1, 0, 1], i): print(p) assert capture(lambda: test()) == dedent('''\ 1 [0] [1] 2 [0, 0] [0, 1] [1, 0] [1, 1] 3 [0, 0, 0] [0, 0, 1] [0, 1, 0] [0, 1, 1] [1, 0, 0] [1, 0, 1] [1, 1, 0] 4 [0, 0, 0, 1] [0, 0, 1, 0] [0, 0, 1, 1] [0, 1, 0, 0] [0, 1, 0, 1] [0, 1, 1, 0] [1, 0, 0, 0] [1, 0, 0, 1] [1, 0, 1, 0] [1, 1, 0, 0] 5 [0, 0, 0, 1, 1] [0, 0, 1, 0, 1] [0, 0, 1, 1, 0] [0, 1, 0, 0, 1] [0, 1, 0, 1, 0] [0, 1, 1, 0, 0] [1, 0, 0, 0, 1] [1, 0, 0, 1, 0] [1, 0, 1, 0, 0] [1, 1, 0, 0, 0] 6\n''')
def test_multiset_combinations(): ans = ['iii', 'iim', 'iip', 'iis', 'imp', 'ims', 'ipp', 'ips', 'iss', 'mpp', 'mps', 'mss', 'pps', 'pss', 'sss'] assert [''.join(i) for i in list(multiset_combinations('mississippi', 3))] == ans M = multiset('mississippi') assert [''.join(i) for i in list(multiset_combinations(M, 3))] == ans assert [''.join(i) for i in multiset_combinations(M, 30)] == [] assert list(multiset_combinations([[1], [2, 3]], 2)) == [[[1], [2, 3]]] assert len(list(multiset_combinations('a', 3))) == 0 assert len(list(multiset_combinations('a', 0))) == 1 assert list(multiset_combinations('abc', 1)) == [['a'], ['b'], ['c']]
def test_multiset_combinations(): ans = ['iii', 'iim', 'iip', 'iis', 'imp', 'ims', 'ipp', 'ips', 'iss', 'mpp', 'mps', 'mss', 'pps', 'pss', 'sss'] assert [''.join(i) for i in list(multiset_combinations('mississippi', 3))] == ans M = multiset('mississippi') assert [''.join(i) for i in list(multiset_combinations(M, 3))] == ans assert [''.join(i) for i in multiset_combinations(M, 30)] == [] assert list(multiset_combinations([[1], [2, 3]], 2)) == [[[1], [2, 3]]] assert len(list(multiset_combinations('a', 3))) == 0 assert len(list(multiset_combinations('a', 0))) == 1 assert list(multiset_combinations('abc', 1)) == [['a'], ['b'], ['c']]