Python Unit Test

sumfunc.py:

from typing import List
def getsum(nums : List[int]) -> int:
	sum =0
	for i nums:
		sum+=i
	return sum

testsum.py:

import unittest
 
class TestSum(unittest.TestCase):
 
	def test_sum_examples_1(self):
		self.assertEqual(getsum([1,2]), 3)
 
	def test_sum_examples_2(self):
		self.assertEqual(getsum([1,2,3,4]), 10)
 
if __name__ == '__main__':
	unittest.main(exit=False)

Each method must start with the words test

Python Test Types

Size

Size is the length of the argument For:

• String
• Int

Dichotomy

If the argument evaluated as a boolean like, it can be true or false, it can be even or odd, etc. Test with the opposite version

• Boolean

Boundaries

Giving arguments that hit specific function logic condition branches

• String
• Int

Order

Giving arguments with same length but the content is rearranged

• String
• Int

Specific Datatypes

String

• Punctuation
• Length
• Symbols