Test suite organization in Testing Fundamentals - Test Execution Trace

Test Overview

This test checks that multiple related tests are grouped correctly in a test suite and that all tests run and pass as expected.

Test Code - unittest

Testing Fundamentals

import unittest

class CalculatorTests(unittest.TestCase):
    def test_addition(self):
        self.assertEqual(2 + 3, 5)

    def test_subtraction(self):
        self.assertEqual(5 - 2, 3)

class StringTests(unittest.TestCase):
    def test_uppercase(self):
        self.assertEqual('hello'.upper(), 'HELLO')

    def test_isdigit(self):
        self.assertTrue('12345'.isdigit())

if __name__ == '__main__':
    suite = unittest.TestSuite()
    suite.addTest(unittest.makeSuite(CalculatorTests))
    suite.addTest(unittest.makeSuite(StringTests))
    runner = unittest.TextTestRunner()
    runner.run(suite)

Execution Trace - 7 Steps

Step	Action	System State	Assertion	Result
1	Test suite created and CalculatorTests added	Test suite contains tests: test_addition, test_subtraction	-	PASS
2	StringTests added to test suite	Test suite contains tests: test_addition, test_subtraction, test_uppercase, test_isdigit	-	PASS
3	Test runner starts running test_addition	Running test_addition: 2 + 3 == 5	assertEqual(5, 5)	PASS
4	Test runner runs test_subtraction	Running test_subtraction: 5 - 2 == 3	assertEqual(3, 3)	PASS
5	Test runner runs test_uppercase	Running test_uppercase: 'hello'.upper() == 'HELLO'	assertEqual('HELLO', 'HELLO')	PASS
6	Test runner runs test_isdigit	Running test_isdigit: '12345'.isdigit() is True	assertTrue(True)	PASS
7	All tests completed	Test suite run complete with 4 tests, 0 failures	-	PASS

Failure Scenario

Failing Condition: A test assertion fails, for example test_addition returns wrong result

Execution Trace Quiz - 3 Questions

What does the test suite do before running tests?

A Groups related tests together to run them all at once

B Runs tests one by one without grouping

C Only runs tests that pass previously

D Skips tests that are slow

Key Result

Organizing tests into suites helps run and manage related tests together, making testing more efficient and structured.