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Mockito Cookbook by Marcin Grzejszczak

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Stubbing methods so that they throw exceptions

In this recipe, we will stub a method that returns a value so that it throws an exception. Since we want our code to be beautiful, we'll use the catch-exception library to catch and check the exceptions thrown in our system.

Getting ready

Ensure that you have the catch-exception library on your classpath; refer to the Stubbing methods so that they throw exceptions recipe of Chapter 4, Stubbing Behavior of Mocks, for details on how to add catch-exception to your project.

This recipe will reuse the example from the previous recipe. We have a class that calculates an average value of tax factors (AverageTaxFactorCalculator) and TaxFactorFetcher is the provider of those values. One of the values is picked ...

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