def test_return_6_with_std_out(self):
try:
saved_stdout = sys.stdout
out = StringIO()
sys.stdout = out
string_add('1,2,3', out=out)
output = out.getvalue().strip()
assert output == '6'
finally:
sys.stdout = saved_stdout
def test_expected_sum_delimiter_any_length(self):
assert string_add('//[***]\n1***2***3') == 6
def test_return_6_with_multiple_delimiters(self):
assert string_add('//[*][%]\n1*2%3') == 6
def test_return_sum_with_semi_colon_delimiter(self):
assert string_add('//;\n1;2') == 3
def test_ignore_numbers_over_1000(self):
assert string_add('1,2,1001') == 3
def test_throw_exception_when_multiple_negative_numbers_included(self):
with self.assertRaisesRegex(ValueError, 'no negatives allowed: -1 -1 -2'):
string_add('-1,0,-1,-2')
def test_expected_result_with_new_line(self):
assert string_add('1\n2,3') == 6
def test_three_big_numbers(self):
assert string_add('11,124,414') == 549
def test_three_numbers(self):
assert string_add('1,2,4') == 7
def test_two_numbers(self):
assert string_add('1,2') == 3
def test_one_number(self):
assert string_add('1') == 1, 'TEST A PASSED'
def test_zero_when_empty_string(self):
assert string_add('') == 0, 'BASIC TEST PASSED'