Test prioritization in Testing Fundamentals - Test Execution Trace

Test Overview

This test simulates prioritizing test cases based on risk and impact to ensure critical features are tested first. It verifies that high-priority tests run before lower-priority ones.

Test Code - unittest

Testing Fundamentals

import unittest

class TestPrioritization(unittest.TestCase):
    def setUp(self):
        # Simulate test cases with priorities
        self.test_cases = [
            {'name': 'Login Test', 'priority': 1},  # High priority
            {'name': 'Profile Update Test', 'priority': 3},  # Low priority
            {'name': 'Payment Processing Test', 'priority': 2}  # Medium priority
        ]

    def test_run_order(self):
        # Sort test cases by priority (1 is highest)
        sorted_tests = sorted(self.test_cases, key=lambda x: x['priority'])
        # Check that the first test is the highest priority
        self.assertEqual(sorted_tests[0]['name'], 'Login Test')
        # Check that the last test is the lowest priority
        self.assertEqual(sorted_tests[-1]['name'], 'Profile Update Test')

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

Execution Trace - 5 Steps

Step	Action	System State	Assertion	Result
1	Test suite starts	TestPrioritization class loaded with test cases and priorities	-	PASS
2	setUp method runs to prepare test cases with priorities	List of test cases with names and priority numbers ready	-	PASS
3	test_run_order method sorts test cases by priority	Test cases sorted: Login Test (1), Payment Processing Test (2), Profile Update Test (3)	Check first test case name is 'Login Test'	PASS
4	test_run_order method checks last test case name	Last test case is 'Profile Update Test'	Check last test case name is 'Profile Update Test'	PASS
5	Test suite finishes with all assertions passed	All test cases verified in correct priority order	-	PASS

Failure Scenario

Failing Condition: Test cases are not sorted correctly by priority

Execution Trace Quiz - 3 Questions

What does the test verify about the test cases?

A They all run at the same time

B They run in order from highest to lowest priority

C They are sorted alphabetically by name

D They are randomly ordered

Key Result

Always prioritize tests based on risk and impact to catch critical issues early and use resources efficiently.