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MOCKITO COOKBOOK

MOCKITO COOKBOOK

By : Grzejszczak
4.3 (4)
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MOCKITO COOKBOOK

MOCKITO COOKBOOK

4.3 (4)
By: Grzejszczak

Overview of this book

This is a focused guide with lots of practical recipes with presentations of business issues and presentation of the whole test of the system. This book shows the use of Mockito's popular unit testing frameworks such as JUnit, PowerMock, TestNG, and so on. If you are a software developer with no testing experience (especially with Mockito) and you want to start using Mockito in the most efficient way then this book is for you. This book assumes that you have a good knowledge level and understanding of Java-based unit testing frameworks.
Table of Contents (12 chapters)
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11
Index

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 of our choice. This way, you can simulate scenarios in which some connection issues might occur or some business exceptions have been thrown in your application.

In the behavior verification part of our test, we will check the thrown exception and since our goal is to write beautiful tests, we will use the catch-exception library (https://code.google.com/p/catch-exception/) to assert the caught exceptions. (We will use this library even though it's not maintained any more since in JDK 8, you can profit from the lambda expressions to achieve a similar goal.)

Getting ready

First, we have to add catch-exception to the classpath. To do that, let's use either Maven or Gradle (for manual installation, you can download the JAR files from https://code.google.com/p/catch-exception/downloads/list).

The following is the configuration for Gradle:

testCompile 'com.googlecode...

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