Continuous testing in CI/CD in Testing Fundamentals - Test Execution Trace

Test Overview

This test simulates a continuous testing step in a CI/CD pipeline. It runs automated tests on a sample application build and verifies that all tests pass before allowing deployment.

Test Code - unittest

Testing Fundamentals

import unittest

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

    def test_string_upper(self):
        self.assertEqual('hello'.upper(), 'HELLO')

if __name__ == '__main__':
    unittest.main()

Execution Trace - 4 Steps

Step	Action	System State	Assertion	Result
1	Test runner starts executing the test suite	CI/CD environment triggers the unittest framework	-	PASS
2	Test runner executes test_addition method	Running test to verify addition logic	Check if 2 + 3 equals 5	PASS
3	Test runner executes test_string_upper method	Running test to verify string uppercase conversion	Check if 'hello'.upper() equals 'HELLO'	PASS
4	Test runner completes all tests and reports results	All tests passed successfully	Verify no test failures or errors	PASS

Failure Scenario

Failing Condition: If any assertion fails during test execution

Execution Trace Quiz - 3 Questions

What does the test_addition method verify in this CI/CD test?

A That 2 plus 3 equals 5

B That 'hello' converts to 'HELLO'

C That the application deploys successfully

D That the test runner starts correctly

Key Result

Continuous testing in CI/CD ensures that automated tests run on every code change, catching errors early and preventing faulty code from reaching production.