Mockito Cookbook
eBook - ePub

Mockito Cookbook

  1. 284 pages
  2. English
  3. ePUB (mobile friendly)
  4. Available on iOS & Android
eBook - ePub

Mockito Cookbook

About this book

In Detail

Mockito is a testing framework that creates external dependencies (which is called mocking) which is used to test/simulate the behavioral patterns of the software and generate reports about it. Frameworks like Mockito fake or mock the external dependencies so that the object being tested has a consistent interaction with the outside dependencies. Mockito streamlines the delivery of the external dependencies that are not subjects of the test. Why Mockito? Compared to its main Java competitors EasyMock and jMock, Mockito, it is the most widely used mocking framework.

This book consists of recipes that depict the usage of a vast majority of Mockito functionalities in real-life examples. It goes beyond the documentation and covers how Mockito works and shows the steps to write effective tests using Mockito. It begins with getting to know the Mockito configuration, then you will learn how to create mocks and stubs, and afterwards you will be shown how to write good tests using Mockito together with how to properly stub behavior of your test objects. We'll finish by showing you some of the most interesting Mockito extension-based tools together with a comparison of the most widely used mocking frameworks.

Approach

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.

Who this book is for

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.

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Information

Publisher
Packt Publishing
Year
2014
Edition
1
eBook ISBN
9781783982745
Topic
Computer Science
Subtopic
Computer Science General
Index
Computer Science

Mockito Cookbook

Table of Contents

Mockito Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Support files, eBooks, discount offers and more
Why Subscribe?
Free Access for Packt account holders
Preface
What this book covers
What you need for this book
Who this book is for
Conventions
Reader feedback
Customer support
Downloading the example code
Errata
Piracy
Questions
1. Getting Started with Mockito
Introduction
Adding Mockito to a project's classpath
How to do it...
See also
Getting started with Mockito for JUnit
Getting ready
How to do it...
How it works...
There's more...
See also
Getting started with Mockito for TestNG
Getting ready
How to do it...
How it works...
See also
Mockito best practices – test behavior not implementation
Getting ready
How to do it...
See also
Adding Mockito hints to exception messages (JUnit) (Experimental)
Getting ready
How to do it...
How it works...
Adding additional Mockito warnings to your tests (JUnit) (Experimental)
How to do it...
How it works...
2. Creating Mocks
Introduction
Creating mocks in code
Getting ready
How to do it...
How it works...
See also
Creating mocks with annotations
Getting ready
How to do it...
How it works...
See also
Creating mocks with a different default answer
Getting ready
How to do it...
How it works...
There's more...
See also
Creating mocks with different default answers with annotations
Getting ready
How to do it...
How it works...
See also
Creating mocks with custom configuration
Getting ready
How to do it...
How it works...
There's more...
See also
Creating mocks of final classes with PowerMock
Getting ready
How to do it...
How it works...
See also
Creating mocks of enums with PowerMock
Getting ready
How to do it...
How it works...
See also
3. Creating Spies and Partial Mocks
Introduction
Creating spies in code
Getting ready
How to do it...
How it works...
See also
Creating spies with custom configuration
Getting ready
How to do it...
How it works...
See also
Creating spies using annotations
Getting ready
How to do it...
How it works...
There's more...
See also
Creating partial mocks
Getting ready
How to do it...
How it works...
There's more...
See also
Creating partial mocks of final classes with delegatesTo()
Getting ready
How to do it...
How it works...
There's more...
See also
Creating spies of final classes with PowerMock
Getting ready
How to do it...
How it works...
See also
4. Stubbing Behavior of Mocks
Introduction
Using argument matchers for stubbing
Getting ready
How to do it...
How it works...
There's more...
See also
Stubbing methods that return values
Getting ready
How to do it...
How it works...
There's more...
See also
Stubbing methods so that they throw exceptions
Getting ready
How to do it...
How it works...
There's more...
See also
Stubbing methods so that they return custom answers
Getting ready
How to do it...
How it works...
There's more...
See also
Stubbing methods so that they call real methods
Getting ready
How to do it...
See also
Stubbing void methods
How to do it...
How it works...
See also
Stubbing void methods so that they throw exceptions
Getting ready
How to do it...
How it works...
See also
Stubbing void methods so that they return custom answers
Getting ready
How to do it...
How it works...
See also
Stubbing void methods so that they call real methods
Getting ready
How to do it...
How it works...
See also
Stubbing final methods with PowerMock
Getting ready
How to do it...
How it works...
See also
Stubbing static methods with PowerMock
Getting ready
How to do it...
How it works...
See also
Stubbing object instantiation using PowerMock
Getting ready
How to do it...
How it works...
See also
5. Stubbing Behavior of Spies
Introduction
Stubbing methods that return values
Getting ready
How to do it...
How it works...
There's more...
See also
Stubbing methods so that they throw exceptions
Getting ready
How to do it...
How it works...
There's more...
See also
Stubbing methods so that they return custom answers
Getting ready
How to do it...
How it works...
There's more...
See also
Stubbing void methods
Getting ready
How to do it...
How it works...
There's more...
See also
Stubbing void methods so that they throw exceptions
Getting ready
How to do it...
How it works...
See also
Stubbing void methods so that they return custom answers
Getting ready
How to do it...
How it works...
See also
Stubbing final methods with PowerMock
Getting ready
How to do it...
How it works...
See also
6. Verifying Test Doubles
Introduction
Verifying the method invocation count with times()
Getting ready
How to do it...
How it works...
There's more...
See also
Verifying the method invocation count with atLeast()
Getting ready
How to do it...
How it works...
There's more...
See also
Verifying the method invocation count with atMost()
Getting ready
How to do it...
How it works...
See also
Verifying that interactions never happened
Getting ready
How to do it...
How it works...
There's more...
See also
Verifying that interactions stopped happening
Getting ready
How to do it...
How it works...
There's more...
See also
Verifying the order of interactions
Getting ready
How to do it...
How it works...
There's more...
See also
Verifying interactions and ignoring stubbed methods
Getting ready
How to do it…
How it works...
See also
Verifying the method invocation within the specified time
Getting ready
How to do it…
How it works...
There's more...
See also
7. Verifying Behavior with Object Matchers
Introduction
Using Hamcrest matchers for assertions
Getting ready
How to do it...
How it works...
There's more...
See also
Creating custom Hamcrest matchers
Getting ready
How to do it...
How it works...
There's more...
See also
Using Hamcrest matchers for stubbing and verification
Getting ready
How to do it...
How it works...
There's more...
See also
Using AssertJ for assertions
Getting ready
How to do it...
How it works...
There's more...
See also
Creating custom AssertJ assertions
Getting ready
How to do it...
How it works...
There's more...
See also
Capturing and asserting the argument
Getting ready
How to do it...
How it works...
See also
8. Refactoring ...

Table of contents

  1. Mockito Cookbook

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