def test_oneitem_quicksort(): tlist = 1 with pytest.raises(TypeError): quisort(tlist)
def test_oneitemlist_quicksort(): tlist = [1] quisort(tlist) assert tlist == [1]
def test_rand_quicksort(): tlist = range(500) shuffle(tlist) assert tlist != range(500) quisort(tlist) assert tlist == range(500)
def test_none_quicksort(): tlist = None with pytest.raises(TypeError): quisort(tlist)
def test_char_quicksort(): initlist = list('abcdefghijklmnopq') tlist = initlist[:] shuffle(tlist) quisort(tlist) assert tlist == initlist
def test_sameval_quicksort(): tlist = [3 for _ in range(500)] quisort(tlist) for item in tlist: assert item == 3
def test_inorder_quicksort(): tlist = range(500) quisort(tlist) assert tlist == range(500)
def test_backward_quicksort(): tlist = range(500) tlist.reverse() quisort(tlist) assert tlist == range(500)