Learn to Build Software That Is Easy to Maintain

Complex topics. Understandable guides.

Easy to digest software development tutorials, and tips on how to become a better software developer. Save time, frustration and do a better job.

Specialized in Java/Kotlin and Spring Boot.

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Learn to Build Software That Is Easy to Maintain

Recent Posts

Spring Boot Testing Strategy

Avoid debating what types of test to write and focus on desirable characteristics. Learn a testing strategy with those goals.

Last updated on May 8, 2022 10 min read Testing

Spring Boot Integration Testing With @SpringBootTest

Learn how to write integration tests with @SpringBootTest. Learn different options for customizing the application context for the tests.

Last updated on May 3, 2022 11 min read Testing

Spring Boot Integration Testing With @SpringBootTest

Testing Spring WebClient REST Calls With MockWebServer

Learn how to test WebClient REST calls with MockWebServer. Learn the responsibilities of a web client and how to test them.

Last updated on May 21, 2022 10 min read Testing

Testing Spring WebClient REST Calls With MockWebServer

Testing Serialization With Spring Boot @JsonTest

Learn how to test JSON serialization in Spring Boot using @JsonTest. Learn why to test serialization separately and how.

Last updated on May 3, 2022 6 min read Testing

Testing Serialization With Spring Boot @JsonTest

Testing the Persistence Layer With Spring Boot @DataJpaTest

Learn how to test Spring Boot repositories using @DataJpaTest. Learn what should be tested on the persistence layer and how.

Last updated on May 3, 2022 12 min read Testing

Testing the Persistence Layer With Spring Boot @DataJpaTest

Featured Articles

Learn how to test WebClient REST calls with MockWebServer. Learn the responsibilities of a web client and how to test them.

Testing Web Controllers With Spring Boot @WebMvcTest

Learn how to test Spring Boot web controllers using @WebMvcTest. Learn what responsibilities a controller has and how to test them.

Using Mockito With JUnit 5

Learn how to use the Mockito mocking framework with JUnit 5. Learn both the test framework independent way, and using the Mockito JUnit 5 extension.

A More Practical Guide to JUnit 5 Parameterized Tests

Learn how to write JUnit 5 parameterized tests. Learn answers to some of the most asked questions about parameterized tests.

Migrating From JUnit 4 to JUnit 5: A Definitive Guide

Learn how to migrate from JUnit 4 to JUnit 5. See how to run existing tests along with the new version, and what changes are needed to migrate the code.