def test_nine_nine_times_nine_nine(token_stack, nine_nine):
token_stack.push(nine_nine)
token_stack.push(nine_nine)
multiplication = Multiplication()
result = multiplication.compute()
assert result.sign == Sign.positive
assert len(result.digits) == 18
assert result.digits[0] == 1
assert result.digits[1] == 0
assert result.digits[2] == 0
assert result.digits[3] == 0
assert result.digits[4] == 0
assert result.digits[5] == 0
assert result.digits[6] == 0
assert result.digits[7] == 0
assert result.digits[8] == 0
assert result.digits[9] == 8
assert result.digits[10] == 9
assert result.digits[11] == 9
assert result.digits[12] == 9
assert result.digits[13] == 9
assert result.digits[14] == 9
assert result.digits[15] == 9
assert result.digits[16] == 9
assert result.digits[17] == 9
def test_two_times_four(token_stack, two, four):
token_stack.push(two)
token_stack.push(four)
multiplication = Multiplication()
result = multiplication.compute()
assert result.sign == Sign.positive
assert len(result.digits) == 1
assert result.digits[0] == 8
def test_one_times_two(token_stack, one, two):
token_stack.push(one)
token_stack.push(two)
multiplication = Multiplication()
result = multiplication.compute()
assert result.sign == Sign.positive
assert len(result.digits) == 1
assert result.digits[0] == 2
def test_minus_one_times_minus_one(token_stack, minus_one):
token_stack.push(minus_one)
token_stack.push(minus_one)
multiplication = Multiplication()
result = multiplication.compute()
assert result.sign == Sign.positive
assert len(result.digits) == 1
assert result.digits[0] == 1
def test_large_number_times_zero(token_stack, large_number, zero):
token_stack.push(large_number)
token_stack.push(zero)
multiplication = Multiplication()
result = multiplication.compute()
assert result.sign == Sign.positive
assert len(result.digits) == 1
assert result.digits[0] == 0
def test_eight_times_four(token_stack, eight, four):
token_stack.push(eight)
token_stack.push(four)
multiplication = Multiplication()
result = multiplication.compute()
assert result.sign == Sign.positive
assert len(result.digits) == 2
assert result.digits[0] == 2
assert result.digits[1] == 3
def test_ten_times_ten(token_stack, ten):
token_stack.push(ten)
token_stack.push(ten)
multiplication = Multiplication()
result = multiplication.compute()
assert result.sign == Sign.positive
assert len(result.digits) == 3
assert result.digits[0] == 0
assert result.digits[1] == 0
assert result.digits[2] == 1
def test_large_number_times_ninety_nine(token_stack, large_number,
ninety_nine):
token_stack.push(large_number)
token_stack.push(ninety_nine)
multiplication = Multiplication()
result = multiplication.compute()
assert result.sign == Sign.positive
assert len(result.digits) == 8
assert result.digits[0] == 8
assert result.digits[1] == 3
assert result.digits[2] == 8
assert result.digits[3] == 7
assert result.digits[4] == 5
assert result.digits[5] == 1
assert result.digits[6] == 7
assert result.digits[7] == 6