def test_1_return_k_subsets(self):
assert sorted(ex8.return_k_subsets(3, 1)) == [[0], [1], [2]]
assert sorted(ex8.return_k_subsets(5, 1)) == [
[0],
[1],
[2],
[3],
[4]]
def test_2_return_k_subsets(self):
assert sorted(ex8.return_k_subsets(3, 2)) == [[0, 1], [0, 2], [1, 2]]
assert sorted(ex8.return_k_subsets(5, 2)) == [
[0, 1],
[0, 2],
[0, 3],
[0, 4],
[1, 2],
[1, 3],
[1, 4],
[2, 3],
[2, 4],
[3, 4]]
def test_4_return_k_subsets():
result = ex8.return_k_subsets(10, 4)
assert len(result) == nCr(10, 4)
result = [str(i) for i in result]
assert len(result) == len(set(result))
def test_3_return_k_subsets():
assert ex8.return_k_subsets(3, 3) == [[0, 1, 2]]
result = ex8.return_k_subsets(5, 3)
assert len(result) == nCr(5, 3)
result = [str(i) for i in result]
assert len(result) == len(set(result))
def test_empty_return_k_subsets():
assert ex8.return_k_subsets(0, 0) == [[]]
assert ex8.return_k_subsets(0, 5) == []
assert ex8.return_k_subsets(5, 0) == [[]]
assert ex8.return_k_subsets(2, 3) == []