def test_with_5_minus_8_plus_7_times_4_minus_8_plus_9(self):
min, max, min_solution, max_solution = get_min_max('5-8+7*4-8+9')
self.assertEqual(-94, min)
self.assertEqual(200, max)
self.assert_min_max_solutions(min, max, min_solution, max_solution,
'((5-8)+((7)*((4)-(8+9))))',
'((5)-((8+7)*((4)-(8+9))))')
def test_with_1_minus_2_times_2_minus_3_minus_4(self):
min, max, min_solution, max_solution = get_min_max('1-2*2-3-4')
self.assertEqual(-10, min)
self.assertEqual(11, max)
self.assert_min_max_solutions(min, max, min_solution, max_solution,
'((((1)-(2*2))-(3))-(4))',
'((1)-((2)*((2-3)-(4))))')
def test_with_1_plus_2_minus_3_times_4_minus_5(self):
min, max, min_solution, max_solution = get_min_max('1+2-3*4-5')
self.assertEqual(-14, min)
self.assertEqual(6, max)
self.assert_min_max_solutions(min, max, min_solution, max_solution,
'((1)+(((2)-(3*4))-(5)))',
'((1)+((2)-((3)*(4-5))))')
def test_with_1_minus_2_times_2_plus_3_minus_4(self):
min, max, min_solution, max_solution = get_min_max('1-2*2+3-4')
self.assertEqual(-13, min)
self.assertEqual(-1, max)
self.assert_min_max_solutions(min, max, min_solution, max_solution,
'(((1)-((2)*(2+3)))-(4))',
'((1)-((2)*((2)+(3-4))))')
def test_with_1_minus_4_times_2_times_2_minus_1(self):
min, max, min_solution, max_solution = get_min_max('1-4*2*2-1')
self.assertEqual(-16, min)
self.assertEqual(-6, max)
self.assert_min_max_solutions(min, max, min_solution, max_solution,
'(((1)-((4)*(2*2)))-(1))',
'((1-4)*((2)*(2-1)))')
def test(self):
while True:
text = ''
for i in range(0, StressTestCase.N):
digit = StressTestCase.DIGITS[randint(0, \
len(StressTestCase.DIGITS) - 1)]
op = StressTestCase.OPERATORS[randint(0, \
len(StressTestCase.OPERATORS) - 1)]
text = text + digit + op
digit = StressTestCase.DIGITS[randint(0, \
len(StressTestCase.DIGITS) - 1)]
text = text + digit
min_val, max_val, min_solution, max_solution = get_min_max(text)
print('text: %s: ' % text)
print('min_val: %s' % min_val)
print('max_val: %s' % max_val)
print('min_solution: %s' % min_solution)
print('max_solution: %s' % max_solution)
print()
self.assertEqual(min_val, eval(min_solution))
self.assertEqual(max_val, eval(max_solution))
def test_with_4_plus_1_times_3_minus_2(self):
min, max, min_solution, max_solution = get_min_max('4+1*3-2')
self.assertEqual(5, min)
self.assertEqual(13, max)
self.assert_min_max_solutions(min, max, min_solution, max_solution,
'((4)+((1)*(3-2)))', '(((4+1)*(3))-(2))')
def test_with_operator_and_operand(self):
with self.assertRaisesRegex(AssertionError, ''):
get_min_max('+1')
def test_with_2_plus_1_times_4_minus_3(self):
min, max, min_solution, max_solution = get_min_max('2+1*4-3')
self.assertEqual(3, min)
self.assertEqual(9, max)
self.assert_min_max_solutions(min, max, min_solution, max_solution,
'((2)+((1)*(4-3)))', '(((2+1)*(4))-(3))')
def test_with_3_plus_1_times_2_minus_4(self):
min, max, min_solution, max_solution = get_min_max('3+1*2-4')
self.assertEqual(-8, min)
self.assertEqual(4, max)
self.assert_min_max_solutions(min, max, min_solution, max_solution,
'((3+1)*(2-4))', '(((3+1)*(2))-(4))')
def test_with_2_plus_4_times_3_minus_1(self):
min, max, min_solution, max_solution = get_min_max('2+4*3-1')
self.assertEqual(10, min)
self.assertEqual(17, max)
self.assert_min_max_solutions(min, max, min_solution, max_solution,
'((2)+((4)*(3-1)))', '(((2+4)*(3))-(1))')
def test_with_2_plus_1_times_3_minus_4(self):
min, max, min_solution, max_solution = get_min_max('2+1*3-4')
self.assertEqual(-3, min)
self.assertEqual(5, max)
self.assert_min_max_solutions(min, max, min_solution, max_solution,
'((2+1)*(3-4))', '(((2+1)*(3))-(4))')
def test_with_4_plus_3_times_2_minus_1(self):
min, max, min_solution, max_solution = get_min_max('4+3*2-1')
self.assertEqual(7, min)
self.assertEqual(13, max)
self.assert_min_max_solutions(min, max, min_solution, max_solution,
'((4)+((3)*(2-1)))', '(((4+3)*(2))-(1))')
def test_with_5(self):
min, max, min_solution, max_solution = get_min_max('5')
self.assertEqual(5, min)
self.assertEqual(5, max)
self.assert_min_max_solutions(min, max, min_solution, max_solution,
'(5)', '(5)')
def test_with_1_plus_2(self):
min, max, min_solution, max_solution = get_min_max('1+2')
self.assertEqual(3, min)
self.assertEqual(3, max)
self.assert_min_max_solutions(min, max, min_solution, max_solution,
'(1+2)', '(1+2)')
def test_with_two_digit_operand_in_end(self):
with self.assertRaisesRegex(AssertionError, ''):
get_min_max('1+34')
def test_with_three_digit_operand_in_middle(self):
with self.assertRaisesRegex(AssertionError, ''):
get_min_max('1+345-6')
def test_with_4_plus_1_times_2_minus_3(self):
min, max, min_solution, max_solution = get_min_max('4+1*2-3')
self.assertEqual(-5, min)
self.assertEqual(7, max)
self.assert_min_max_solutions(min, max, min_solution, max_solution,
'((4+1)*(2-3))', '(((4+1)*(2))-(3))')
def test_with_3_plus_2_times_4_minus_1(self):
min, max, min_solution, max_solution = get_min_max('3+2*4-1')
self.assertEqual(9, min)
self.assertEqual(19, max)
self.assert_min_max_solutions(min, max, min_solution, max_solution,
'((3)+((2)*(4-1)))', '(((3+2)*(4))-(1))')
def test_with_3_plus_2_times_1_minus_4(self):
min, max, min_solution, max_solution = get_min_max('3+2*1-4')
self.assertEqual(-15, min)
self.assertEqual(1, max)
self.assert_min_max_solutions(min, max, min_solution, max_solution,
'((3+2)*(1-4))', '((3)+((2*1)-(4)))')
def test_with_unsupported_operator_between_two_operands(self):
with self.assertRaisesRegex(AssertionError, ''):
get_min_max('1#2')
def test_with_3_plus_1_times_4_minus_2(self):
min, max, min_solution, max_solution = get_min_max('3+1*4-2')
self.assertEqual(5, min)
self.assertEqual(14, max)
self.assert_min_max_solutions(min, max, min_solution, max_solution,
'((3)+((1)*(4-2)))', '(((3+1)*(4))-(2))')
def test_with_three_digit_operand_in_beginning(self):
with self.assertRaisesRegex(AssertionError, ''):
get_min_max('123+4')
def test_with_unsupported_operator_among_operands(self):
with self.assertRaisesRegex(AssertionError, ''):
get_min_max('1+2-3*4#5*6-7+8')
def test_with_1(self):
min, max, min_solution, max_solution = get_min_max('1')
self.assertEqual(1, min)
self.assertEqual(1, max)
self.assert_min_max_solutions(min, max, min_solution, max_solution,
'(1)', '(1)')
def test_with_4_plus_2_times_1_minus_3(self):
min, max, min_solution, max_solution = get_min_max('4+2*1-3')
self.assertEqual(-12, min)
self.assertEqual(3, max)
self.assert_min_max_solutions(min, max, min_solution, max_solution,
'((4+2)*(1-3))', '((4)+((2*1)-(3)))')
def test_with_9(self):
min, max, min_solution, max_solution = get_min_max('9')
self.assertEqual(9, min)
self.assertEqual(9, max)
self.assert_min_max_solutions(min, max, min_solution, max_solution,
'(9)', '(9)')
def test_with_4_plus_2_times_3_minus_1(self):
min, max, min_solution, max_solution = get_min_max('4+2*3-1')
self.assertEqual(8, min)
self.assertEqual(17, max)
self.assert_min_max_solutions(min, max, min_solution, max_solution,
'((4)+((2)*(3-1)))', '(((4+2)*(3))-(1))')
def test_with_2_plus_1(self):
min, max, min_solution, max_solution = get_min_max('2+1')
self.assertEqual(3, min)
self.assertEqual(3, max)
self.assert_min_max_solutions(min, max, min_solution, max_solution,
'(2+1)', '(2+1)')
def test_with_4_plus_3_times_1_minus_2(self):
min, max, min_solution, max_solution = get_min_max('4+3*1-2')
self.assertEqual(-7, min)
self.assertEqual(5, max)
self.assert_min_max_solutions(min, max, min_solution, max_solution,
'((4+3)*(1-2))', '((4)+((3*1)-(2)))')
