Introduction to Pytest

What is Pytest?

Pytest is a powerful and easy-to-use testing framework for Python. It simplifies the process of writing and running tests by providing features like:

• Autodiscovery of tests: Pytest automatically identifies test files and test functions without any explicit test registration.
• Rich assertion introspection: Pytest gives detailed reports when an assertion fails, making it easier to debug.
• Support for parameterized testing: You can run the same test with different inputs using @pytest.mark.parametrize.
• Fixture-based testing: Pytest allows you to set up reusable test objects using fixtures.

Why Pytest?

Pytest stands out due to several advantages:

• Simplified syntax: Test functions are written with simple assert statements.
• Clear error reporting: When tests fail, Pytest provides insightful tracebacks.
• Powerful fixture system: Fixtures handle setup and teardown of test resources.
• Compatibility: Pytest works well with other frameworks, including Django and Flask.
• Extensive plugin ecosystem: There are numerous plugins to extend Pytest's capabilities, such as coverage reports and parallel test execution.

Basic Pytest: Writing Your First Tests

Setting up the Project

To install Pytest, use pip:

pip install pytest