Unit and Integration testing with Pytest

Unit testing is a fundamental practice in software development that offers numerous benefits to both individual developers and development teams. By writing and maintaining a comprehensive suite of unit tests, engineers can catch bugs early in the development process, reducing the cost and time required for fixes.

£39.00
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Description

Friday 13th September, 6pm (BST)

Level: Beginner

Unit testing is a fundamental practice in software development that offers numerous benefits to both individual developers and development teams. By writing and maintaining a comprehensive suite of unit tests, engineers can catch bugs early in the development process, reducing the cost and time required for fixes. These tests serve as a safety net, allowing developers to refactor code with confidence, knowing that unintended side effects will be caught quickly. Unit tests also act as living documentation, clearly demonstrating how code is intended to function. This improves code maintainability and makes it easier for new team members to understand existing systems. Furthermore, the process of writing unit tests often leads to better code design, as it encourages developers to create more modular, loosely coupled components. Ultimately, unit testing contributes to higher code quality, increased developer productivity, and more reliable software products.

Learning Pytest offers several valuable benefits:

  1. Improved code quality: Pytest encourages writing testable code, which often leads to better overall design and fewer bugs.
  2. Faster debugging: The detailed output from failed tests helps you pinpoint issues quickly, saving time during development.
  3. Increased productivity: Pytest’s simplicity and powerful features allow you to write and run tests more efficiently.
  4. Better collaboration: A solid test suite with Pytest makes it easier for team members to understand and modify each other’s code.
  5. Continuous Integration support: Pytest integrates well with CI/CD pipelines, facilitating automated testing and deployment.
  6. Career advancement: Proficiency in testing frameworks like Pytest is a valuable skill in the job market.
  7. Confidence in refactoring: A comprehensive test suite allows you to make changes to your code with greater assurance.

Pytest compares favorably to other testing frameworks in several ways:

  1. Simplicity vs. unittest:
    • Pytest uses simple functions instead of unittest’s class-based approach
    • Less boilerplate code required
  2. Assertion handling:
    • Pytest provides more detailed assertion failure messages than most frameworks
    • No need for special assertion methods like in unittest
  3. Fixture system:
    • More powerful and flexible than setUp/tearDown methods in unittest
    • Easier to share test data across multiple tests
  4. Parametrization:
    • Built-in support for running tests with multiple inputs
    • More straightforward than similar features in other frameworks
  5. Plugin ecosystem:
    • Larger and more diverse than most other Python testing frameworks
  6. Test discovery:
    • More flexible than unittest, with customisable discovery rules
  7. Compatibility:
    • Can run tests written for unittest or nose
    • Easier migration path from other frameworks
  8. Parallel execution:
    • Built-in support for running tests in parallel, improving speed
  9. Reporting:
    • Rich set of built-in and third-party plugins for generating test reports

Join us on the 13th September for an intro to this powerful library and a new way of engineering.