def test_rpn_operator_parentheses(self):
calculator = Calculator()
expected = [
ValueToken(Decimal(2)),
ValueToken(Decimal(4)),
OperatorToken('+'),
]
self.assertListEqual(expected, calculator.to_rpn(calculator.tokenize("(2 + 4)")))
def test_rpn_division(self):
calculator = Calculator()
expected = [
ValueToken(Decimal(6)),
ValueToken(Decimal(3)),
OperatorToken('/')
]
self.assertListEqual(expected, calculator.to_rpn(calculator.tokenize("6 / 3")))
def test_rpn_operator_precedence_with_parentheses(self):
calculator = Calculator()
expected = [
ValueToken(Decimal(5)),
ValueToken(Decimal(3)),
OperatorToken('+'),
ValueToken(Decimal(4)),
OperatorToken('*')
]
self.assertListEqual(expected, calculator.to_rpn(calculator.tokenize("(5 + 3) * 4")))
def test_rpn_multiple_parentheses_decimal(self):
calculator = Calculator()
expected = [
ValueToken(Decimal("3.5")),
ValueToken(Decimal("2.7")),
ValueToken(Decimal("4.8")),
OperatorToken('+'),
OperatorToken('*')
]
self.assertListEqual(expected, calculator.to_rpn(calculator.tokenize("(3.5 * ((2.7) + (4.8)))")))
def test_rpn_multiple_parentheses(self):
calculator = Calculator()
expected = [
ValueToken(Decimal(3)),
ValueToken(Decimal(2)),
ValueToken(Decimal(4)),
OperatorToken('+'),
OperatorToken('*')
]
self.assertListEqual(expected, calculator.to_rpn(calculator.tokenize("(3 * ((2) + (4)))")))
def test_rpn_decimal(self):
calculator = Calculator()
expected = [
ValueToken(Decimal("6.2"))
]
self.assertListEqual(expected, calculator.to_rpn(calculator.tokenize("6.2")))
def test_rpn_value_parentheses(self):
calculator = Calculator()
expected = [
ValueToken(Decimal(2))
]
self.assertListEqual(expected, calculator.to_rpn(calculator.tokenize("(2)")))
