Integrating the nose2 library

nose2 is a library that makes testing easier and much more fun. It provides a whole lot of tools to enhance our tests. Although nose2 can be used for multiple purposes, the most important usage remains that of a test collector and runner. nose2 automatically collects tests from Python source files, directories, and packages found in the current working directory. In this recipe, we will focus on how to run individual tests using nose2 rather than the whole bunch of tests every time.

Important

In earlier editions of this book, we used the nose library. It has since not been under active maintenance and can be deemed deprecated. A replacement for it has been created, with the name nose2. This library behaves similarly to nose but is not exactly the same. However, for the purpose of our demonstration, the major functionality remains similar.

Getting ready

First, we need to install the nose2 library:

$ pip install nose2

nose2 has a mechanism...