PyTest installation (pip install pytest) - Test Execution Trace

Test Overview

This test checks if PyTest is installed correctly by running pytest --version in the command line and verifying the output shows the installed version.

Test Code - PyTest

PyTest

import subprocess
import sys

def test_pytest_installation():
    result = subprocess.run([sys.executable, '-m', 'pytest', '--version'], capture_output=True, text=True)
    output = result.stdout.strip() + result.stderr.strip()
    assert 'pytest' in output.lower() and 'version' in output.lower(), f"PyTest not found in output: {output}"

Execution Trace - 4 Steps

Step	Action	System State	Assertion	Result
1	Test starts by running 'python -m pytest --version' command using subprocess	Command line environment ready, Python interpreter available	-	PASS
2	Captures the output from the command execution	Output contains PyTest version information if installed	-	PASS
3	Checks if output contains 'pytest' and 'version' keywords	Output string from command line	Assert output includes 'pytest' and 'version'	PASS
4	Test ends with PASS if assertion is true	PyTest is installed and recognized	-	PASS

Failure Scenario

Failing Condition: PyTest is not installed or command fails to run

Execution Trace Quiz - 3 Questions

What does the test check to confirm PyTest is installed?

A The output of 'pytest --version' contains 'pytest' and 'version'

B The output of 'pip list' contains 'pytest'

C The test imports pytest module successfully

D The test runs a sample PyTest test case

Key Result

Always verify tool installation by checking its version output in a test to ensure the environment is ready before running further tests.