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Mockito Cookbook

By : Marcin Grzejszczak
Book Image

Mockito Cookbook

By: Marcin Grzejszczak

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Mockito Cookbook
Marcin Grzejszczak
Jun, 2014 | 284 pages
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Table of Contents (17 chapters)
Mockito Cookbook
Mockito Cookbook
Credits
Credits
About the Author
About the Author
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Getting Started with Mockito
Getting Started with Mockito
Introduction
Adding Mockito to a project's classpath
Getting started with Mockito for JUnit
Getting started with Mockito for TestNG
Mockito best practices – test behavior not implementation
Adding Mockito hints to exception messages (JUnit) (Experimental)
Adding additional Mockito warnings to your tests (JUnit) (Experimental)
2
Creating Mocks
Creating Mocks
Introduction
Creating mocks in code
Creating mocks with annotations
Creating mocks with a different default answer
Creating mocks with different default answers with annotations
Creating mocks with custom configuration
Creating mocks of final classes with PowerMock
Creating mocks of enums with PowerMock
3
Creating Spies and Partial Mocks
Creating Spies and Partial Mocks
Introduction
Creating spies in code
Creating spies with custom configuration
Creating spies using annotations
Creating partial mocks
Creating partial mocks of final classes with delegatesTo()
Creating spies of final classes with PowerMock
4
Stubbing Behavior of Mocks
Stubbing Behavior of Mocks
Introduction
Using argument matchers for stubbing
Stubbing methods that return values
Stubbing methods so that they throw exceptions
Stubbing methods so that they return custom answers
Stubbing methods so that they call real methods
Stubbing void methods
Stubbing void methods so that they throw exceptions
Stubbing void methods so that they return custom answers
Stubbing void methods so that they call real methods
Stubbing final methods with PowerMock
Stubbing static methods with PowerMock
Stubbing object instantiation using PowerMock
5
Stubbing Behavior of Spies
Stubbing Behavior of Spies
Introduction
Stubbing methods that return values
Stubbing methods so that they throw exceptions
Stubbing methods so that they return custom answers
Stubbing void methods
Stubbing void methods so that they throw exceptions
Stubbing void methods so that they return custom answers
Stubbing final methods with PowerMock
6
Verifying Test Doubles
Verifying Test Doubles
Introduction
Verifying the method invocation count with times()
Verifying the method invocation count with atLeast()
Verifying the method invocation count with atMost()
Verifying that interactions never happened
Verifying that interactions stopped happening
Verifying the order of interactions
Verifying interactions and ignoring stubbed methods
Verifying the method invocation within the specified time
7
Verifying Behavior with Object Matchers
Verifying Behavior with Object Matchers
Introduction
Using Hamcrest matchers for assertions
Creating custom Hamcrest matchers
Using Hamcrest matchers for stubbing and verification
Using AssertJ for assertions
Creating custom AssertJ assertions
Capturing and asserting the argument
8
Refactoring with Mockito
Refactoring with Mockito
Introduction
Removing the problems with instance creation
Refactoring classes that do too much
Refactoring the classes that use the class casts
Refactoring the classes that use static methods
Refactoring the tests that use too many mocks
9
Integration Testing with Mockito and DI Frameworks
Integration Testing with Mockito and DI Frameworks
Introduction
Injecting test doubles instead of beans using Spring's code configuration
Injecting test doubles instead of beans using Spring's XML configuration
Injecting test doubles instead of beans using Springockito
Injecting test doubles instead of beans with Guice
Injecting test doubles instead of beans with Guice using Jukito
10
Mocking Libraries Comparison
Mocking Libraries Comparison
Introduction
Mockito versus EasyMock
Mockito versus JMockit
Mockito versus JMock
Mockito versus Spock
Index
Index

Adding Mockito to a project's classpath

Adding Mockito to a project's classpath is as simple as adding one of the two jars to your project's classpath:

  • mockito-all: This is a single jar with all dependencies (with the hamcrest and objenesis libraries—as of June 2011).

  • mockito-core: This is only Mockito core (without hamcrest or objenesis). Use this if you want to control which version of hamcrest or objenesis is used.

How to do it...

If you are using a dependency manager that connects to the Maven Central Repository, then you can get your dependencies as follows (examples of how to add mockito-all to your classpath for Maven and Gradle):

For Maven, use the following code:

        <dependency>
            <groupId>org.mockito</groupId>
            <artifactId>mockito-all</artifactId>
            <version>1.9.5</version>
            <scope>test</scope>
        </dependency>

For Gradle, use the following code:

testCompile "org.mockito:mockito-all:1.9.5"

Tip

Downloading the example code

You can download the example code files for all Packt books you have purchased from your account at http://www.packtpub.com. If you purchased this book elsewhere, you can visit http://www.packtpub.com/support and register to have the files e-mailed directly to you.

If you are not using any of the dependency managers, you have to either download mockito-all.jar or mockito-core.jar and add it to your classpath manually (you can download the jars from https://code.google.com/p/mockito/downloads/list). To see more examples of adding Mockito to your classpath, please check the book, Instant Mockito, Marcin Grzejszczak, Packt Publishing, for more examples of adding Mockito to your classpath (it includes Ant, Buildr, Sbt, Ivy, Gradle, and Maven).

See also

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