Testing essence

So, what is testing? Testing in Python is up to evaluate and verify code’s correctness and quality.

You want to know if your code behaves as expected and produces the right output to avoid bugs and inefficiency, right?

There are many testing frameworks for testing, here are the most popular ones:

unittest: This is a built-in testing framework that provides a way to organize test cases into classes and methods. It offers assertion methods to check whether certain conditions are met.
pytest: This is a popular third-party testing framework that simplifies writing and executing tests. It supports a more concise syntax for writing tests and offers a wide range of plugins and features.
nose2: Another third-party testing framework that builds upon unittest and provides additional features like test discovery and parallel test execution.
doctest: This framework allows you to write tests directly in the docstrings of your code, making it easy to keep documentation and tests in sync.

The testing process typically involves the following steps:

Writing Test Cases: You create separate test cases that cover different aspects of your code’s functionality. Each test case checks specific conditions and behaviors.
Running Tests: You execute the tests using a testing framework. The framework runs through the test cases and checks if the actual outcomes match the expected outcomes.
Assertions: In each test case, you use assertions to verify that specific conditions are met. If an assertion fails, it indicates a problem in your code.
Test Discovery: Testing frameworks often provide mechanisms to automatically discover and run all test cases within your codebase.
Test Fixtures: You might need to set up certain conditions or resources before running tests. Test fixtures help you establish this environment.
Test Coverage: Test coverage tools analyze which parts of your code are covered by tests. This helps ensure that your tests exercise all critical paths in your code.
Test Reporting: Testing frameworks usually provide detailed reports about test results, including which tests passed and which failed.
Refactoring and Regression Testing: As you modify your code, you can rerun tests to ensure that your changes haven’t introduced new bugs (regressions) into the system.

Effective testing improves code quality, reduces the likelihood of bugs reaching production, and boosts your confidence in the reliability of your software.

Now let’s follow this tutorial of this nice youtuber Mariya:

Software Testing Tutorial Bits🤏
How do we know our app exists and is accessible to users?

💻 Clone my code:https://t.co/rvjgzU7FtD
🎥 Watch full tutorial on YouTube:https://t.co/4HG827q9Zh #Python #pythonprogramming #code #SoftwareEngineering #SoftwareTesting… pic.twitter.com/EX0npnjHGu
— Mariya Simplified (@MariyaSha888) August 17, 2023