Creating robust GUIs using unit tests

Python comes with a built-in unit testing framework and, in this recipe, we will start using this framework to test our Python GUI code.

Before we start writing unit tests, we want to design our testing strategy. We could easily intermix the unit tests with the code they are testing, but a better strategy is to separate the application code from the unit test code.

PyUnit has been designed according to the principles of all the other xUnit testing frameworks.

Getting ready

We will test the internationalized GUI we created earlier in this chapter.

How to do it...

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