def test_scale(self):
N = 100000
root = None
for i in range(N):
root = insert(root, i)
assert valid_bst_order(root)
assert valid_rbtree_paths(root)
assert valid_rbtree_colors(root)
def should_insert_inorder():
for i in range(5):
inputs = list(rand.randint(100, size=35))
print inputs
tree = None
for j, val in enumerate(inputs):
tree = insert(val, tree)
values_in_order = inorder(tree)
assert j + 1 == len(values_in_order)
assert sorted(inputs[0: len(values_in_order)]) == values_in_order
assert is_valid(tree)
assert sorted(inputs) == inorder(tree)
def should_insert_inorder():
for i in range(5):
inputs = list(rand.randint(100, size=35))
print inputs
tree = None
for j, val in enumerate(inputs):
tree = insert(val, tree)
values_in_order = inorder(tree)
assert j + 1 == len(values_in_order)
assert sorted(inputs[0:len(values_in_order)]) == values_in_order
assert is_valid(tree)
assert sorted(inputs) == inorder(tree)
def should_work_for_a_large_tree():
for i in range(10):
inputs = list(rand.randint(10000, size=3000))
tree = reduce(lambda tree, val: insert(val, tree), inputs, None)
assert is_valid(tree)
assert inorder(tree) == sorted(inputs)
for i in range(2500):
val = inputs.pop()
# print "delete %s from tree %s" % (val, strify(tree))
tree = delete(val, tree)
# assert is_valid(tree), strify(tree)
assert is_valid(tree)
assert inorder(tree) == sorted(inputs)
def should_work_for_a_large_tree():
for i in range(10):
inputs = list(rand.randint(10000, size=3000))
tree = reduce(lambda tree, val: insert(val, tree), inputs, None)
assert is_valid(tree)
assert inorder(tree) == sorted(inputs)
for i in range(2500):
val = inputs.pop()
# print "delete %s from tree %s" % (val, strify(tree))
tree = delete(val, tree)
# assert is_valid(tree), strify(tree)
assert is_valid(tree)
assert inorder(tree) == sorted(inputs)
def test_find(self):
N = 100
in_tree = range(0, N, 2)
not_in_tree = range(1, N, 2)
root = None
for value in in_tree:
root = insert(root, value)
for value in in_tree:
assert find(root, value)
for value in not_in_tree:
assert not find(root, value)
def test_insert(self):
N = 10
test_cases = [("sorted", range(N)), ("reversed", reversed(range(N))),
("random 1", [randint(1, N) for i in range(N)]),
("random 2", [randint(1, 10 * N) for i in range(N)])]
for name, values in test_cases:
root = None
for value in values:
root = insert(root, value)
print('\nTest case "{}":'.format(name))
root.render()
assert valid_bst_order(root)
# TODO: Uncomment these once you believe you've implemented a
# working red-black tree.
assert valid_rbtree_paths(root)
assert valid_rbtree_colors(root)