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NumPy Cookbook - Second Edition by Ivan Idris

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Testing the BDD way

BDD (Behavior-driven Development) is another hot acronym that you might have come across. In BDD, we start by defining (in English) the expected behavior of the system under test according to certain conventions and rules. In this recipe, we will see an example of those conventions.

The idea behind this approach is that we can have people who may not be able to program, or write a major part of the tests. A feature written by these people takes the form of a sentence consisting of several steps. Each step is more or less a unit test that we can write, for instance, using NumPy. There are many Python BDD frameworks. In this recipe, we use Lettuce to test the factorial function.

How to do it…

In this section, you will learn how ...

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