Master Java Unit Testing with Spring Boot and Mockito [Video]

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Master Java Unit Testing with Spring Boot and Mockito [Video]

Ranga Karanam

Friday, May 25, 2018

New Release!

Learn to Write Awesome Java JUnit Unit Tests with Spring Boot and Mockito in 40 Easy Steps

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Video Details

ISBN 139781789346077

Course Length3 hours 55 minites

Video Description

Spring Boot is the most popular framework to develop RESTful services. It has awesome unit testing capabilities through Spring Boot Starter Test. Mockito is the most popular mocking framework. JUnit is the most popular Java unit testing framework. You will build the unit tests step by step - in 40 easy steps. This course would be a perfect first step as an introduction to unit testing with the Spring Boot and Mockito frameworks. You will be using Spring (dependency management), Spring Boot, Maven (dependencies management), Eclipse (IDE), in memory database H2 and Tomcat embedded web server. We will help you set up each one of these. You will use all the frameworks that are part of the Spring Boot Starter Test - JUnit, Spring Test, Spring Boot Test, AssertJ, Hamcrest, Mockito, JSONassert and JsonPath. You will learn to use the most important unit testing annotations - @RunWith(SpringRunner.class), @SpringBootTest, @WebMvcTest, @DataJpaTest and @MockBean.

Style and Approach

In this course, you will learn to build unit tests for simple RESTful services with Spring Boot Starter Test, Mockito and JUnit.

Introduction

Course Overview

Mocking With Mockito

Step 00 - Section Introduction - Mocking with Mockito

Step 01 - Setting up the project using Spring Initializr

Step 02 - Writing Unit Test for a Simple Business Service

Step 03 - Setting up a Business Service to call a Data Service

Step 04 - Writing your first unit test with Stub

Step 05 - Exercise Solution - Updating Tests 2 & 3 to use Stubs

Step 06 - Writing Unit Tests with Mocking using Mockito

Step 07 - Exercise Solution - Updating Tests 2 & 3 to use Mockito

Step 08 - More Refactoring - @Mock, @InjectMocks and @RunWith(MockitoJUnitRunner

Step 09 - Mockito Tips - Multiple Return Values and Specific Argument Matchers

Step 10 - Mockito Tips - Argument Matchers

Step 11 - Mockito Tips - Verify method calls

Step 12 - Mockito Tips - Argument Capture

Step 13 - Mockito Tips - Argument Capture on Multiple Calls

Step 14 - Introduction to Spy

Step 15 - Mockito FAQ

Unit Testing With Spring Boot and Mockito

Step 00 - Section Introduction - Unit Testing with Spring Boot and Mockito

Step 01 - Creating a Hello World Controller

Step 02 - Using Mock Mvc to test Hello World Controller

Step 03 - Using Response Matchers to check status and content

Step 04 - Creating a Basic REST Service in Item Controller

Step 05 - Unit Testing Item Controller and Basic JSON Assertions

Step 06 - Digging deeper into JSON Assert

Step 07 - Writing a REST Service talking to Business Layer

Step 08 - Writing Unit Test for REST Service mocking Business Layer

Step 09 - 00 - Overview of Steps 09 to 15

Step 09 - 01 - Prepare Data Layers with JPA, Hibernate and H2

Step 10 - Create Item Entity and Populate data with data.sql

Step 11 - Create a RESTful Service talking to the database

Step 12 - Writing Unit Test for Web Layer - Controller - Using Mock MVC

Step 13 - Exercise & Solution - Writing Unit Test for Business Layer – Mocking

Step 14 - Writing Unit Test for Data Layer - Data JPA Test

Step 15 - Writing an Integration Test using @SpringBootTest

Step 16 - Tip - Using @MockBean to mock out dependencies you do not want to talk

Step 17 - Tip - Creating Different Test Configuration

Step 18 - Writing Unit Tests for Other Request Methods

Step 19 - Refactor SomeBusinessImpl to use Functional Programming

Step 20 - Better Assertions with Hamcrest – HamcrestMatcherTest

Step 21 - Better Assertions with AssertJ – AssertJTest

Step 22 - Better Assertions with JSONPath – JSONPathTest

Step 23 - Tip Patterns – xunitpatterns

Step 24 - Tip - Measuring Test Coverage with Eclipse

Step 25 - Tip - Keep an eye on performance of unit tests!

Step 26 - Good Unit Tests

Congratulations

Next Steps

What You Will Learn

You will learn to write great Unit and Integration tests using Spring Boot Starter Test
You will learn to write unit tests using Mocks and Spys created with Mockito
You will learn to write independent unit tests for RESTful web services talking with multiple layers - web, business and data
You will learn to use the most important Unit Testing Annotations - @RunWith(SpringRunner), @SpringBootTest, @WebMvcTest, @DataJpaTest, and @MockBean.
You will learn to use all the frameworks that are part of Spring Boot Starter Test - JUnit, Spring Test, Spring Boot Test, AssertJ, Hamcrest, Mockito, JSONassert, and JsonPath.
You will learn to write integration tests using an in-memory database - H2

Authors

Ranga Karanam

Ranga Karanam of in28Minutes fame is an architect with 15 years of Java programming and design experience with major banking clients across the world. He started in28Minutes with the aim of creating hands-on courses with real-world projects. The Step-By-Step series of courses is one of his creations. They use a problems-solution based step-by-step approach with practical, and real-world application examples. While their primary expertise is in the development, design and architecture of Java and related frameworks (Spring, Spring Boot, Spring MVC, Struts, Hibernate), they are expanding into the front-end world (Bootstrap, JQuery, Angular JS). The foundations for building high-quality applications are best laid down while learning. They love open source and therefore, all their code is open source too and available on Github. They use the 80-20 Rule, touching upon other things to briefly equip you with enough knowledge to find out more on your own.

Introduction

Course Overview

Mocking With Mockito

Step 00 - Section Introduction - Mocking with Mockito

Step 01 - Setting up the project using Spring Initializr

Step 02 - Writing Unit Test for a Simple Business Service

Step 03 - Setting up a Business Service to call a Data Service

Step 04 - Writing your first unit test with Stub

Step 05 - Exercise Solution - Updating Tests 2 & 3 to use Stubs

Step 06 - Writing Unit Tests with Mocking using Mockito

Step 07 - Exercise Solution - Updating Tests 2 & 3 to use Mockito

Step 08 - More Refactoring - @Mock, @InjectMocks and @RunWith(MockitoJUnitRunner