What tools or methods do you use for organizing automated tests?

I use the following tools and methods for organizing automated tests:

• Testing frameworks: for example, pytest for Python, JUnit for Java, or Jest for JavaScript.
• Writing unit tests to verify individual functions and components.
• Integration tests to check the interaction between modules.
• Using CI/CD systems (Jenkins, GitLab CI, GitHub Actions) for automatically running tests on each commit.
• Code coverage with testing coverage tools (coverage.py, Istanbul).
• Mocks and stubs to isolate tested components.

An example of a simple test in Python with pytest:

import pytest

def add(a, b):
    return a + b


def test_add():
    assert add(2, 3) == 5

This approach allows for quick error detection and maintaining code quality.