pytest-tutorial

Create First Test

pytest discover the test by its standard convention. Below are the standard conventions,

Files - test_*.py or *_test.py files

Functions or Method - test_ prefixed test functions or methods outside of class

Class - Test_ prefixed test classes

Write a sample pytest test

test_sample.py

def test_01():
    assert 5==5

Execute the pytest test

You can execute the pytest test in different ways,

1. Using Pycharm Configuration.

If you are using Pycharm to create and maintain your test, you can follow the below steps to execute the test

Once the test_sample.py file and test_01 function is created.

• Go to File -> Settings -> Tools -> Python Integrated Tools
• Under Testing choose Default test runner as pytest
• Now, Right click on the editor and you can find Run ‘pytest for test_sample’

2. Using commands in the terminal

You can run your pytest test using below command,

pytest [options] [file_or_dir] [file_or_dir]

Also pytest provides plenty of command line options to select and run the test.

Refer Command line Options

3. Using configuration file

pytest look for pytest.ini, tox.ini and setup.cfg configuration file to execute the test.

[pytest]
python_files =
    test_sample.py