@pytest.mark.skipif with condition - Test Execution Trace

Test Overview

This test demonstrates how to use @pytest.mark.skipif to skip a test when a specific condition is true. It verifies that the test is skipped when the condition matches.

Test Code - pytest

PyTest

import sys
import pytest

@pytest.mark.skipif(sys.platform == "win32", reason="Skip on Windows")
def test_not_on_windows():
    assert True

Execution Trace - 4 Steps

Step	Action	System State	Assertion	Result
1	Pytest starts test collection and identifies test_not_on_windows with skipif condition	Test suite ready to run, current platform detected as Linux	-	PASS
2	Pytest evaluates skipif condition sys.platform == 'win32'	Condition evaluates to False on Linux	-	PASS
3	Pytest runs test_not_on_windows function	Test executes normally	assert True	PASS
4	Test completes successfully without skipping	Test passed	-	PASS

Failure Scenario

Failing Condition: Test is run on Windows platform where skipif condition is True but test is not skipped

Execution Trace Quiz - 3 Questions

What does @pytest.mark.skipif(sys.platform == "win32") do?

A Skips the test only if not running on Windows

B Always runs the test

C Skips the test only if running on Windows

D Fails the test on Windows

Key Result

Use @pytest.mark.skipif with a clear condition and reason to skip tests on specific platforms or environments, improving test suite relevance and speed.