Pytest Demo

This Django project contains basic Pytest tests covering:

• Pytest fixtures.
• Making requests to internal URLs using Pytest client.
• Generating DB data using Django dynamic fixtures.
• Mocking external API calls.
• User login.
• Admin user.
• Pytest coverage report.

Inline comments are given in the tests for better understanding.

Packages and Versions Used

• Python 3.8.10
• Django 4.1.3
• Django Dynamic Fixture 3.1.2
• pytest-django 4.5.2
• pytest-cov 4.0.0
• requests-mock 1.10.0

Setup

1. Clone the repo.
2. Create a virtual environment.
3. Install requirements using the command pip install -r requirements.txt.
4. Apply DB migrations using the command python manage.py migrate.
5. Run the application using the command python manage.py runserver.
6. Refer urls.py for the available URLs.

Commonly Used Pytest Commands

1. Running pytest:

pytest

2. Running specific pytest test case:

# Running specific test class
pytest -k TestSampleClass

# Running specific individual function or a function inside a test class
pytest -k test_sample_function

3. Running pytest with detailed output:

pytest -v

4. Running pytest with print statements or to use pdb:

pytest -s

5. To get pytest coverage:

pytest --cov=demo/

# Sample output
❯ pytest --cov=demo/
=============================================================== test session starts ================================================================
platform linux -- Python 3.8.10, pytest-7.2.0, pluggy-1.0.0
django: settings: pytest_demo.settings (from ini)
rootdir: /home/arul/git/pytest_demo, configfile: pytest.ini
plugins: requests-mock-1.10.0, django-4.5.2, cov-4.0.0
collected 5 items

demo/tests.py .....                                                                                                                          [100%]

---------- coverage: platform linux, python 3.8.10-final-0 -----------
Name                              Stmts   Miss  Cover
-----------------------------------------------------
demo/__init__.py                      0      0   100%
demo/admin.py                         1      0   100%
demo/apps.py                          4      0   100%
demo/forms.py                        10      0   100%
demo/migrations/0001_initial.py       5      0   100%
demo/migrations/__init__.py           0      0   100%
demo/models.py                       13      1    92%
demo/tests.py                        61      0   100%
demo/views.py                        15      0   100%
-----------------------------------------------------
TOTAL                               109      1    99%


================================================================ 5 passed in 4.29s =================================================================

6. Generate pytest coverage report in HTML format:

pytest --cov-report html --cov=demo/

Sample HTML report