def test_new_line_at_end(self):
"""
Validate add function raises error for new line at the end
"""
try:
add("1,44444444\n")
except ValueError as err:
print(err.args)
def test_negatives(self):
"""
Validate error raised when negative numbers are added
"""
negative_numbers = ("-1", "-100", "-9999")
positive_numbers = ("-7", "1", "9999")
for x in positive_numbers:
for y in negative_numbers:
try:
add("%s,%s" % (x, y))
except ValueError as err:
print(err.args)
def test_pure_string(self):
"""
Validate if no numbers present in string, 0 is returned
"""
result = add("stringy")
expected_result = 0
self.assertEqual(expected_result, result)
def test_higher_than_1000(self):
"""
Validate add function ignores numbers over 1000
"""
result = add("1,1000,1001,1002,9999")
expected_result = 1001
self.assertEqual(expected_result, result)
def test_different_delimiters(self):
"""
Validate function handles different delimiters OK
"""
result = add("//[;]\n1;(*_*)2****&$^#7W[]<\}{>")
expected_result = 10
self.assertEqual(expected_result, result)
def test_no_numbers(self):
"""
Validates that if an empty string is passed, 0 is returned
"""
result = add("")
expected_result = 0
self.assertEqual(expected_result, result)
def test_new_line(self):
"""
Validate add function handles a new line correctly
"""
result = add("1\n2,3")
expected_result = 6
self.assertEqual(expected_result, result)
def test_two_numbers(self):
"""
Validates addition of two numbers
"""
result = add("7, 5")
expected_result = 12
self.assertEqual(expected_result, result)
def test_float(self):
"""
Validate floats are not supported, its composing numbers are
summed up individually, e.g. 5.2 turns to 5 and 2
"""
result = add("7, 5.2")
expected_result = 14
self.assertEqual(expected_result, result)
def test_one_number(self):
"""
Validates that if one number is passed, same number is returned
"""
for x in ("0", "1", "10", "999"):
result = add(x)
expected_result = int(x)
self.assertEqual(expected_result, result)
def test_ten_numbers(self):
"""
Validate that the program accepts and performs correct
addition on a string containing more than 2 numbers
"""
x = list(range(10))
result = add("%s" % x)
expected_result = 45
self.assertEqual(expected_result, result)
def test_two_numbers_extended(self):
"""
Validates addition of more number pairs
"""
numbers = ("0", "1", "999", "1000")
for x in numbers:
for y in numbers:
result = add("%s,%s" % (x, y))
expected_result = int(x) + int(y)
self.assertEqual(expected_result, result)
