def test_divide_divides_when_given_leaves_with_numbers():
"""."""
assert Div(Div(Div(Div(Leaf(6), Leaf(6)), Leaf(6)), Leaf(6)), Leaf(6)).apply() == 0
def test_division_given_addition_to_string():
"""."""
tree = Div(Add(Leaf(12), Leaf(6)), Leaf(6))
assert tree.apply() == 3
assert tree.__str__() == "(12 + 6) / 6"
def test_bitwise_or_given_bitwise_and_given_div_given_mul_given_bitwise_pow_to_string(
):
"""."""
tree = Or(And(Leaf(3), Div()), )
assert tree.__str__() == "3 & 1 | 5 ** 2 * 1 / 5 & 2"
def test_division_given_addition_to_string():
"""."""
tree = Add(Leaf(3), Div(Add(Leaf(12), Leaf(6)), Leaf(6)))
"""assert tree.apply() == 3"""
assert tree.__str__() == '3 + (12 + 6) / 6'
def test_set_division_subtracts_when_given_subtraction_with_int():
"""."""
assert Div(Sub(Leaf({5}), Leaf({7})), Div(Leaf(5), Leaf(6))).apply() == {5}
def test_set_div_divides_when_given_leaves_with_sets():
"""."""
assert Div(Leaf({5, 6}), Leaf({6})).apply() == {5}
def test_multiplication_given_addition_given_addition_to_string():
""". Tree node class str."""
tree = Add(Leaf(3), Div(Add(Leaf(12), Leaf(6)), Leaf(6)))
assert tree.__str__() == "3 + (12 + 6) / 6"