First PyTest test - Test Execution Trace

Test Overview

This test checks if the addition of two numbers works correctly using PyTest. It verifies that 2 + 3 equals 5.

Test Code - PyTest

PyTest

import pytest

def test_addition():
    result = 2 + 3
    assert result == 5

Execution Trace - 5 Steps

Step	Action	System State	Assertion	Result
1	Test starts	PyTest test runner is ready to execute tests	-	PASS
2	Calls test_addition function	Inside test function, variables initialized	-	PASS
3	Calculates result = 2 + 3	result variable holds value 5	-	PASS
4	Checks assertion assert result == 5	Comparing result (5) with expected value (5)	Assert that result equals 5	PASS
5	Test ends successfully	Test runner marks test as passed	-	PASS

Failure Scenario

Failing Condition: If the assertion result == 5 fails (for example, result is not 5)

Execution Trace Quiz - 3 Questions

What does the assertion in the test check?

A If result is greater than 5

B If 2 + 3 equals 6

C If 2 + 3 equals 5

D If result is less than 5

Key Result

Always write simple assertions that clearly check expected results. This helps catch errors early and makes tests easy to understand.