def test_get_new_delimiter(self):
# Setup
string_calculator = StringCalculator()
# Exercise
result = string_calculator._get_new_delimiter("//;\n1;2;17\n5")
# Verify
assert ';' == result
def test_call_add_with_new_delimiter(self):
# Setup
string_calculator = StringCalculator()
# Exercise
result = string_calculator.add("//;\n1;2;17\n5")
# Verify
assert 25 == result
def test_add_with_new_line(self):
# Setup
string_calculator = StringCalculator()
# Exercise
result = string_calculator.add("1,2\n17")
# Verify
assert 20 == result
def test_add_five_numbers(self):
# Setup
string_calculator = StringCalculator()
# Exercise
result = string_calculator.add("1,2,17,4,1,1")
# Verify
assert 26 == result
def test_add_one_and_two(self):
# Setup
string_calculator = StringCalculator()
# Exercise
result = string_calculator.add("1,2")
# Verify
assert 3 == result
def test_add_one(self):
# Setup
string_calculator = StringCalculator()
# Exercise
result = string_calculator.add("1")
# Verify
assert 1 == result
def test_add_empty_string(self):
# Setup
string_calculator = StringCalculator()
# Exercise
result = string_calculator.add("")
# Verify
assert 0 == result
def test_get_new_delimiter(self):
# Setup
string_calculator = StringCalculator()
# Exercise
result = string_calculator._get_new_delimiter("//;\n1;2;17\n5")
# Verify
assert ';' == result
def test_add_with_new_line(self):
# Setup
string_calculator = StringCalculator()
# Exercise
result = string_calculator.add("1,2\n17")
# Verify
assert 20 == result
def test_get_string_without_delimiter(self):
# Setup
string_calculator = StringCalculator()
# Exercise
result = string_calculator._get_string_without_delimiter("//;\n1,2")
# Verify
assert "1,2" == result
def test_add_one_and_two(self):
# Setup
string_calculator = StringCalculator()
# Exercise
result = string_calculator.add("1,2")
# Verify
assert 3 == result
def test_add_five_numbers(self):
# Setup
string_calculator = StringCalculator()
# Exercise
result = string_calculator.add("1,2,17,4,1,1")
# Verify
assert 26 == result
def test_get_string_without_delimiter(self):
# Setup
string_calculator = StringCalculator()
# Exercise
result = string_calculator._get_string_without_delimiter("//;\n1,2")
# Verify
assert "1,2" == result
def test_add_one(self):
# Setup
string_calculator = StringCalculator()
# Exercise
result = string_calculator.add("1")
# Verify
assert 1 == result
def test_call_add_with_new_delimiter(self):
# Setup
string_calculator = StringCalculator()
# Exercise
result = string_calculator.add("//;\n1;2;17\n5")
# Verify
assert 25 == result
def test_add_empty_string(self):
# Setup
string_calculator = StringCalculator()
# Exercise
result = string_calculator.add("")
# Verify
assert 0 == result
def test_create_error_message_for_negative_numbers(self):
# Setup
string_calculator = StringCalculator()
negative_numbers = [-1, -2, -3]
# Exercise
result = string_calculator._create_error_message(negative_numbers)
# Verify
assert 'negatives not allowed: -1, -2, -3' == result
def test_create_error_message_for_negative_numbers(self):
# Setup
string_calculator = StringCalculator()
negative_numbers = [-1, -2, -3]
# Exercise
result = string_calculator._create_error_message(negative_numbers)
# Verify
assert 'negatives not allowed: -1, -2, -3' == result
def test_is_new_delimiter_set(self):
# Setup
string_calculator = StringCalculator()
# Exercise
result1 = string_calculator._is_new_delimiter_set("//;\n1;2;17\n5")
result2 = string_calculator._is_new_delimiter_set("1;2;17\n5")
# Verify
assert True == result1
assert False == result2
def test_is_new_delimiter_set(self):
# Setup
string_calculator = StringCalculator()
# Exercise
result1 = string_calculator._is_new_delimiter_set("//;\n1;2;17\n5")
result2 = string_calculator._is_new_delimiter_set("1;2;17\n5")
# Verify
assert True == result1
assert False == result2
def test_negative_numbers_raises_exception(self):
# Setup
string_calculator = StringCalculator()
exception_raised = False
# Exercise
try:
result = string_calculator.add("-1")
except Exception:
exception_raised = True
# Verify
assert True == exception_raised
def test_negative_numbers_raises_exception(self):
# Setup
string_calculator = StringCalculator()
exception_raised = False
# Exercise
try:
result = string_calculator.add("-1")
except Exception:
exception_raised = True
# Verify
assert True == exception_raised
def test_multiple_negative_numbers(self):
# Setup
string_calculator = StringCalculator()
exception_raised = False
exception_message = ""
# Exercise
try:
result = string_calculator.add("2,-1,4,-2")
except Exception as err:
exception_message = err
exception_raised = True
# Verify
assert True == exception_raised
assert 'negatives not allowed: -1, -2' == exception_message.args[0]
def test_multiple_negative_numbers(self):
# Setup
string_calculator = StringCalculator()
exception_raised = False
exception_message = ""
# Exercise
try:
result = string_calculator.add("2,-1,4,-2")
except Exception as err:
exception_message = err
exception_raised = True
# Verify
assert True == exception_raised
assert 'negatives not allowed: -1, -2' == exception_message.args[0]
def setUp(self):
self.stringCalculator = StringCalculator()
class TestStringCalculator(unittest.TestCase):
def setUp(self):
self.stringCalculator = StringCalculator()
def test_for_empty_string_input(self):
self.assertEqual(0,self.stringCalculator.add(""))
def test_for_string_input_with_one_char(self):
self.assertEqual(1,self.stringCalculator.add("1"))
def test_for_string_input_with_more_than_one_chars(self):
self.assertEqual(6,self.stringCalculator.add("1,2,3"))
def test_for_string_input_delimited_by_new_lines(self):
self.assertEqual(6,self.stringCalculator.add("1\n2,3"))
def test_for_string_input_with_different_delimiters(self):
self.assertEqual(3,self.stringCalculator.add("//;\n1;2"))
def test_for_string_input_with_a_negative_number(self):
try:
self.stringCalculator.add("-1,2")
except ValueError as ve:
self.assertEqual("negatives not allowed -1", ve.args[0])
def test_for_string_input_with_multiple_negatives(self):
try:
self.stringCalculator.add("-1,2,-3")
except ValueError as ve:
self.assertEqual("negatives not allowed -1 -3", ve.args[0])
def test_for_how_many_times_add_was_invoked(self):
tmp = StringCalculator()
for _ in range(10):
_ = tmp.add("")
self.assertEqual(10,tmp.get_called_count())
def test_whether_numbers_greater_than_1000_are_ignored(self):
self.assertEqual(2,self.stringCalculator.add("2,1001"))
def test_for_delimiters_of_any_length(self):
self.assertEqual(6,self.stringCalculator.add("//[***]\n1***2***3"))
def test_for_multiple_delimiters(self):
self.assertEqual(6,self.stringCalculator.add("//[*][%]\n1*2%3"))
def test_for_multiple_multilength_delimeters(self):
self.assertEqual(6,self.stringCalculator.add("//[***][\\%\\%\\%]\n1***2\\%\\%\\%3"))
def test_for_how_many_times_add_was_invoked(self):
tmp = StringCalculator()
for _ in range(10):
_ = tmp.add("")
self.assertEqual(10,tmp.get_called_count())