Today I'm starting a new series of articles about a topic that does not get a lot of coverage: how to write Python unit tests. Unlike other testing tutorials, I'm going to focus on testing techniques more than on the testing tools themselves. The idea is that in each part of this ...
Unit tests can be written for different parts of your code, such as functions, methods, and even classes. By writing unit tests, you can test your code without running the entire program. Why Use PyTest? PyTestis a popular testing framework for Python that makes it easy to write and run ...
At this point, let’s test it on the Python shell rather than saving it to a program file right now. You can access a Python 3 shell on your command line terminal of choice (including IDE terminal) with thepython3command (orpythonif you’re using a virtual shell). python3 Copy If y...
For smaller projects, you can likely write your own unit tests by creating separate main() entrypoint and then scripting the compilation and running of that test (e.g. using Python or Bash). However, writing multiple entrypoint files and dealing with interconnected dependencies becomes cumbersome ...
Performance test case:Performance testingchecks how well the software works and how fast it responds. For example, it checks how long the application takes to respond after any operation. The testing team usually writes test cases and often automates these tests. They are done to understand how...
Steps to Perform Unit Testing using UnitTest Write the code that you want to test in the Python File likeexample.py. Create a new Python file for your unit tests starting with the keyword test liketest_example.py. Import theunittest moduleandexample.py. ...
Follow the style guide of Python Enhancement Proposal 8, use exception handling and write unit tests. Keep your code concise and aim to use modular programming to enhance code quality. Refactor and improve code. Review and update code to ensure it is maintainable, scalable and efficient. Use au...
Write Docstrings:Document the expected parameter types and return types/values in the function's docstring. Add Unit Tests:Create tests that specifically check the function's return type under various input conditions. (See the function example in the "Common Scenarios" section for code demonstrating...
Write two tests: mock the API call in the test forcompute(), and write another test to test that the API call returns correct data. The first test will be instant, and the second test will take 1,000 seconds. Option 2 is better because the developer can choose run only the fast test...
QA testing login and consent pages can be quite hard: The same two-factor authentication that keeps your customers safe also makes it challenging to write automated tests. Here's how I wrote Python tests that bypassed 2FA while also ensuring customer safety. To do this I used selenium and de...