Addopts for default options in PyTest - Test Execution Trace

Test Overview

This test verifies that pytest runs with default options specified in the pytest.ini file using the addopts setting. It checks that verbose output is enabled by default due to -v from addopts.

Test Code - PyTest

PyTest

import subprocess

def test_pytest_addopts_default():
    # Run pytest with no extra options, relying on addopts in pytest.ini
    result = subprocess.run(['pytest', 'test_sample.py'], capture_output=True, text=True)
    # Check that verbose output is present due to -v from addopts
    assert "::" in result.stdout
    assert result.returncode == 0

Execution Trace - 3 Steps

Step	Action	System State	Assertion	Result
1	Test runner starts subprocess to run 'pytest test_sample.py' without extra options	Command line runs pytest with default options from pytest.ini addopts	-	PASS
2	Pytest loads configuration and applies addopts '-v' for verbose output	Pytest runs tests with verbose output enabled	-	PASS
3	Test subprocess completes and returns output	Captured stdout includes verbose test names and statuses	Check that '::' is in stdout (verbose indicator) and return code is 0	PASS

Failure Scenario

Failing Condition: The addopts setting in pytest.ini is missing or incorrect, so verbose output is not enabled by default

Execution Trace Quiz - 3 Questions

What does the addopts setting in pytest.ini do in this test?

A It adds default command-line options like '-v' when pytest runs

B It disables all command-line options

C It changes the test file name

D It skips tests automatically

Key Result

Using addopts in pytest.ini helps set default command-line options so tests run consistently without needing to specify options every time.