Planned lessonJNR-016-L06

Demo: test-driving a controller with @WebMvcTest

On This Lesson 3 topics

This lesson is planned. The outline below lists the topics it will cover. The full lesson has not been published yet.

In this lesson

write tests first for GET /products/{id}; prepares JNR-016-LAB1.

Draft outline details

Write a failing test for the success case; mock the service; assert status and JSON fields.
Make it pass (the controller from JNR-013).
Add a validation test: POST /products with a blank name returns 400 and a field error.
Planned mistake: assert only status().isOk(), and a bug in the JSON passes. Fix: add jsonPath assertions.
Add the not-found test and check the Problem Details body.

Apply this lesson with the module's lab, exercises and quiz.

Marking a lesson complete is optional and you can undo it any time. Your progress stays in this browser.