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Test Driven Development
Junit 4 Junit 5 Java (all)
with JUnit and Mockito
4 hours
- This course covers the fundamentals of test driven development... not just the theory, but how to use it in real world project examples. This includes mocking with Mockito.
- The course is valid for all current Java versions (7 and up) and covers JUnit 4 and JUnit 5.
- The code files for this course are split into 2 sections. Users of Java versions 9 and above should use the JUnit 5 version of the code. Users of Java 8 and below should use the JUnit 4 version.
Contents
Having problems? check the errata
Introduction |
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| Introducing TDD 3m 6s | Preview | |
| What will we test 2m 36s | Watch | |
JUnit |
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| Introducing our first example project 2m 2s | Watch | |
| Using the IntelliJ IDE 8m 10s | Watch | |
| Creating a project structure for test cases 5m 0s | Watch | |
| JUnit Basics 8m 31s | Watch | |
First tests |
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| Thinking about examples and outcomes 2m 57s | Watch | |
| Step 1 - getting to red 6m 8s | Watch | |
| Step 2 - getting to green 2m 29s | Watch | |
| Why you must always start with a failing test! 4m 39s | Watch | |
| Adding more tests 5m 52s | Watch | |
| Finally writing some code 7m 39s | Watch | |
Practising the basics |
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| Testing for exceptions - and challenge number 1 9m 41s | Watch | |
| Challenge 2 - writing a test 2m 38s | Watch | |
| Solution to challenge 2 3m 36s | Watch | |
| Getting to more complex requirements and finding hidden bugs 11m 48s | Watch | |
| Challenge 3 - Adding further business requirements 11m 33s | Watch | |
Refactoring |
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| Getting started with refactoring - extracting constants 5m 43s | Watch | |
| More refactoring - restructuring our code 4m 32s | Watch | |
Best practice |
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| What is a good or bad test? 6m 58s | Watch | |
| JUnit Asserts 5m 24s | Watch | |
Stubs |
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| The challenge of testing code that has dependencies 3m 55s | Watch | |
| Creating a test stub using just Java 14m 10s | Watch | |
Mocks |
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| Why we want to test behaviour as well as logic 5m 58s | Watch | |
| Setting up Mockito and creating a mock 8m 44s | Watch | |
| Using mocks to test behaviour 9m 22s | Watch | |
| Mockito syntax options 2m 36s | Watch | |
Dummies, Fakes and avoiding Tautologies |
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| What are Fakes or Dummies 5m 5s | Watch | |
| Practical exercise - using Mockito to create a stub 4m 30s | Watch | |
| Refactoring our tests - using setup and teardown 7m 32s | Watch | |
| How to avoid tautologies 9m 17s | Watch | |
Putting it into practice & spying - handling legacy code |
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| Loading up the case study 4m 27s | Watch | |
| Understanding the challenge part 1 8m 21s | Watch | |
| Understanding the challenge part 2 8m 34s | Watch | |
| Using a Spy 13m 1s | Watch | |
| Practical exercise - finding the fault in the business logic 14m 22s | Watch | |