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Running JUnit tests with Gradle

We can leverage our build tool, Gradle, to run our tests as part of the projects build process.

Gradle knows about the src/test/java folder, and will automatically run any tests it finds there.

  • Gradle does this automatically any time it builds your project.

  • If the tests fail, the build fails.

You can have Gradle run tests without doing a build by running the verification | tests task.

  • Failed tests will show in the console.

  • No errors means the tests passed.

Drill

In the same src/test/java source folder and package, create another JUnit Test Case named AddressTest. Configure the file as a JUnit test file and write corresponding tests for the Address entity.

JPAVideoStore
├── src/main/java
│            ├── com.example.jpavideostore.client
│            │   ├── AddressClient.java
│            │   ├── CustomerClient.java
│            │   └── ...
│            └── com.example.jpavideostore.entities
│                ├── Address.java
│                ├── Customer.java
│                └── ...
├── src/main/resources
│            ├── META-INF
│            │   └── persistence.xml
│            └── log4j.properties
├── src/test/java
│            └── com.example.jpavideostore.entities
│                ├── AddressTest.java
│                └── CustomerTest.java
├── src/test/resources
             └── log4j.properties

Use Run As | JUnit Test as usual to run AddressTest.

Now use the Gradle tasks view to run the test task in the verification group.

Gradle test task

Modify CustomerTest.java so that one of the tests fails. Run the test task again and observe the results in the console.

Fix the test so it passes again.

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