Book Image

MOCKITO COOKBOOK

By : Grzejszczak
Book Image

MOCKITO COOKBOOK

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)
11
Index

Stubbing void methods so that they return custom answers


In this recipe, we will stub a void method that doesn't return a value, so it returns a custom answer.

Getting ready

For this recipe, our system under test will be the same class as the one in the previous recipe, but let's take another look at it so that you don't need to scroll around to see the source code. The PersonProcessor class does only one thing for simplicity: it delegates the process of saving person to the PersonSaver class. As shown in the following code, in case of success, true is returned; otherwise, false is returned:

public class PersonProcessor {

    private final PersonSaver personSaver;

    public PersonProcessor(PersonSaver personSaver) {
        this.personSaver = personSaver;
    }

    public boolean process(Person person) {
        try {
            personSaver.savePerson(person);
            return true;
        } catch (FailedToSavedPersonDataException e) {
            System.err.printf("Exception occurred...