Mockito Courses

Java Application Deployment
Udacity

Tips, Tricks and Gotchas When Writing Unit Tests with Mockito
Devoxx via YouTube

Mockito Fundamentals
Pluralsight

Mastering Java Testing With JUnit, Mockito, and AssertJ in IntelliJ IDEA
JetBrains via YouTube

Advanced Spring: Effective Integration Testing with Spring Boot
LinkedIn Learning

Spring Boot Testing - Batteries Included
Dan Vega via YouTube

Test Driven Development in Spring Boot REST Controllers
Dan Vega via YouTube

JUnit and Mockito Unit Testing for Java Developers
Packt via Coursera

Master Java Unit Testing with Spring Boot and Mockito
Packt via Coursera