def test_plus_minus_feature(self):
"""
Test case to check Plus and Minus feature
"""
argument_1 = Digit(4)
argument_2 = Digit(2)
minus = Minus()
plus = Plus()
minus_result = minus(argument_1, argument_2)
self.assertEqual(
plus(minus_result, argument_2).digit, argument_1.digit)
def test_divider_multiplier_feature(self):
"""
Test case to check Divider and Multiplier feature
"""
argument_1 = Digit(4)
argument_2 = Digit(2)
divider = Divider()
multiplier = Multiplier()
division_result = divider(argument_1, argument_2)
self.assertEqual(
multiplier(division_result, argument_2).digit, argument_1.digit)
def test_power(self):
"""
Test case to check Power operator
"""
argument_1 = Digit(3)
argument_2 = Digit(2)
operator = Power()
self.assertEqual(
operator(argument_1, argument_2).digit,
argument_1.digit**argument_2.digit)
self.assertEqual(
operator(argument_2, argument_1).digit,
argument_2.digit**argument_1.digit)
def test_multiple(self):
"""
Test case to check Multiplier operator
"""
argument_1 = Digit(3)
argument_2 = Digit(2)
operator = Multiplier()
self.assertEqual(
operator(argument_1, argument_2).digit,
operator(argument_1, argument_2).digit)
self.assertEqual(
operator(argument_1, argument_2).digit,
argument_1.digit * argument_2.digit)
def test_plus(self):
"""
Test case to check Plus operator
"""
argument_1 = Digit(1)
argument_2 = Digit(2)
operator = Plus()
self.assertEqual(
operator(argument_1, argument_2).digit,
operator(argument_2, argument_1).digit)
self.assertEqual(
operator(argument_2, argument_1).digit,
argument_1.digit + argument_2.digit)
def test_initialize_digit_from_normalized_string(self):
"""
Test case to check creating digit from normalized string
"""
digit = Digit('1e-4')
self.assertEqual(digit.digit, 1 * 10**-4)
def test_initialize_digit_from_float(self):
"""
Test case to check creating digit from float
"""
digit = Digit(1.4)
self.assertEqual(digit.digit, 1.4)
def test_initialize_digit_from_sting(self):
"""
Test case to check creating digit from string
"""
digit = Digit('1.4')
self.assertEqual(digit.digit, 1.4)
def test_division(self):
"""
Test case to check Divider operator
"""
argument_1 = Digit(4)
argument_2 = Digit(2)
operator = Divider()
self.assertNotEqual(
operator(argument_1, argument_2).digit,
operator(argument_2, argument_1).digit)
self.assertEqual(
operator(argument_1, argument_2).digit,
argument_1.digit / argument_2.digit)
self.assertEqual(
operator(argument_2, argument_1).digit,
argument_2.digit / argument_1.digit)
def test_minus(self):
"""
Test case to check Minus operator
"""
argument_1 = Digit(1)
argument_2 = Digit(2)
operator = Minus()
self.assertNotEqual(
operator(argument_1, argument_2).digit,
operator(argument_2, argument_1).digit)
self.assertEqual(
operator(argument_1, argument_2).digit,
argument_1.digit - argument_2.digit)
self.assertEqual(
operator(argument_2, argument_1).digit,
argument_2.digit - argument_1.digit)
def test_digit(self, actual: str, expected_digit: float):
"""
Test case to check convert single number to RPN
:param actual: number as string type
:param expected_digit: the digit that expected after conversion in RPN
"""
actual_rpn = ReversePolishNotationConverter.convert(actual)
expected_rpn = ReversePolishNotation()
self.fill_rpn_with_data(expected_rpn, [Digit(expected_digit)])
self.assert_rpn_equal(actual_rpn, expected_rpn)
def read_digit(state) -> Digit:
"""
Method to read a digit from self._infix_notation
:param state: expression in Reverse Polish Notation Format
:return: Instance of Digit class
"""
digit = ""
while not state.expression_in_infix_notation.empty() and \
ReversePolishNotationConverter.is_part_of_digit(state.expression_in_infix_notation.top()):
digit += state.expression_in_infix_notation.get()
return Digit(digit)
def read_digit(self, character: str) -> Digit:
digit = character
while not self._infix_notation.empty() and self.is_part_of_digit(self._infix_notation.top()):
digit += self._infix_notation.get()
return Digit(digit)