def test_first_example(self):
expr = '1 + (2 * 3) + (4 * (5 + 6))'
rpn = shunting_yard_alg(expr, self.prec)
should_be = 51
self.assertEqual(solve_rpn(rpn), should_be)
def test_fifth_example(self):
expr = '((2 + 4 * 9) * (6 + 9 * 8 + 6) + 6) + 2 + 4 * 2'
rpn = shunting_yard_alg(expr, self.prec)
should_be = 13632
self.assertEqual(solve_rpn(rpn), should_be)
def test_third_example(self):
expr = '5 + (8 * 3 + 9 + 3 * 4 * 3)'
rpn = shunting_yard_alg(expr, self.prec)
should_be = 437
self.assertEqual(solve_rpn(rpn), should_be)
def test_fourth_example(self):
expr = '5 * 9 * (7 * 3 * 3 + 9 * 3 + (8 + 6 * 4))'
rpn = shunting_yard_alg(expr, self.prec)
should_be = 12240
self.assertEqual(solve_rpn(rpn), should_be)
def test_second_example(self):
expr = '2 * 3 + (4 * 5)'
rpn = shunting_yard_alg(expr, self.prec)
should_be = 26
self.assertEqual(solve_rpn(rpn), should_be)
