Testing

Using the Pytest package

We’re going to use Pytest in two different ways: as a command line interface application (a CLI app) and as a Python module (in Python scripts). We’ll look at it as a module first while building our tests.

As a module

One issue we raised above is that often the values we need to check against each other are floats and are not exactly equal.

Lets look at the pytest.approx documentation.

approx(expected, rel=None, abs=None, nan_ok=False)

numpy.testing.assert_allclose