Addopts for default options in PyTest - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the purpose of the addopts setting in pytest?

The addopts setting in pytest allows you to specify default command-line options that pytest will use every time it runs. This helps avoid typing common options repeatedly.

beginner

Where do you add the addopts setting to configure default pytest options?

You add the addopts setting in the pytest.ini file or other pytest configuration files like tox.ini or setup.cfg.

beginner

Example: How to set pytest to always show detailed test output by default using addopts?

In pytest.ini, add:<br>

[pytest]
addopts = -v

<br>This makes pytest run with verbose output every time without typing -v.

intermediate

Can command-line options override addopts settings?

Yes. Options given directly on the command line when running pytest will override the defaults set in addopts.

intermediate

Why is using addopts helpful in a team environment?

Using addopts ensures everyone runs pytest with the same default options, leading to consistent test runs and easier debugging.

Where is the addopts setting typically placed to set default pytest options?

A In the <code>pytest.ini</code> file

B Inside each test function

C In the Python environment variables

D In the test script comments

The addopts setting is placed in configuration files like pytest.ini to apply default options globally.

What happens if you run pytest with a command-line option that conflicts with addopts?

A <code>addopts</code> always overrides command-line options

B Both options are ignored

C pytest throws an error

D The command-line option overrides <code>addopts</code>

Command-line options have higher priority and override the defaults set in addopts.

Which of these is a valid use of addopts in pytest.ini?

A [pytest] addopts = import pytest

B [pytest] addopts = test_function()

C [pytest] addopts = -v --maxfail=2

D [pytest] addopts = def test(): pass

Option C correctly sets default command-line options for pytest in the config file.

Why might you want to use addopts instead of typing options every time?

A To ensure consistent test runs and save time

B To make tests run slower

C To disable all tests

D To avoid writing test code

addopts helps run tests consistently and saves typing effort.

Which file can also contain addopts besides pytest.ini?

A requirements.txt

B tox.ini

C README.md

D setup.py

tox.ini can include pytest configuration including addopts.

Explain how to use addopts to set default pytest options and why it is useful.

Think about how to save time and keep test runs consistent.

Describe a scenario where using addopts improves teamwork in testing.

Consider how shared settings help a team.