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Before We Begin

Introduction to JUnit 5

Introduction to Testing Pyramid and Unit Testing Introduction to JUnit 5 JUnit 5 Architecture Our First Unit Test with JUnit 5 Quiz Yourself on JUnit 5 Architecture

Junit 5 Core Concepts

Structuring Tests Using the AAA Approach

Understanding JUnit 5 Life Cycle

Conditional Execution

Parameterized Tests

Quiz Yourself on JUnit5 Core Concepts

Dynamic Tests

`TestFactory` Annotation

Dependency Injection in JUnit 5

Using the TestInfoParameterResolver Class Using the TestReporterParameterResovler Class Using the RepetitionInfoParameterResolver Class

JUnit 5 Extensions

JUnit 5 Extension Model Using the `TestInstancePostProcessor` Extension Using the `ExecutionCondition` Extension Using Life Cycle Callback Extensions Using the ParameterResolver Extension Using TestExecutionExceptionHandler Extension Different Ways to Register Extensions Quiz Yourself on JUnit 5 Extensions

Migrating from Junit 4 to Junit 5

Difference between JUnit 4 and JUnit 5 Rule Support in JUnit 5

Appendix

IDE Support for JUnit 5 Setting up JUnit 5 with Maven Setting up JUnit 5 with Gradle Running JUnit5 Tests with Maven Running JUnit5 Tests with Gradle Running JUnit 4 Tests in Junit 5 Resources

BONUS: Useful Assertion Libraries

AssertJ Hamcrest JSONAssert

Conclusion

Unit Testing Java Applications using JUnit 5

Assumptions

Learn about Assumptions in JUnit 5.

We'll cover the following...

Assumptions
Example

At times, we have to make sure a set of preconditions are fulfilled before executing the test.

These preconditions may be necessary due to a number of external factors—such as environment configuration, or if we want to run the test only on the continuous integration (CI) environment and not on the ...