What is unit test automation and why is it important?

What is unit test automation and why is it important?

Unit test automation refers to the process of automating the testing of individual components or functions of a software application. It's important because it helps ensure that each part of the code works as intended, reduces bugs, and speeds up the development process.

How does it differ from manual testing?

Unlike manual testing, where testers execute test cases by hand, unit test automation uses scripts and tools to run tests automatically. This allows for faster execution and more consistent results.

What tools are commonly used for unit test automation?

Common tools include JUnit for Java, NUnit for .NET, and pytest for Python. These frameworks help developers write and run tests efficiently.

Can you give me an example of a simple unit test?

Sure! For example, in Python using pytest, a simple unit test for a function that adds two numbers could look like this:

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

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