How do I test Python packages effectively?

How do I test Python packages effectively?

To test Python packages effectively, you can use frameworks like unittest, pytest, or nose. Do you have a specific framework in mind?

I want to use pytest. What are the basic steps?

With pytest, you can start by installing it via pip. Then, create a test file prefixed with 'test_' and define your test functions. Each function should also start with 'test_'. Would you like an example?

Yes, please provide an example of a simple test.

Sure! Here's a simple test example:

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


def test_add():
    assert add(1, 2) == 3
    assert add(-1, 1) == 0

You can run this test by executing pytest in your terminal.

How do I run the tests after writing them?

You can run your tests by navigating to the directory containing your test files and simply typing pytest in the terminal. It will automatically discover and run all the tests.