Testing Web Controllers With Spring Boot @WebMvcTest
This article explains why unit tests alone are not enough to verify Spring Boot controllers. It demonstrates how to use integration tests to check HTTP request mapping, JSON serialization and deserialization, input validation, exception handling, and interaction with business logic. The approach ensures controllers behave correctly in realistic web scenarios.
Spring Boot Unit Testing
This article explains how to write effective unit tests in Spring Boot by testing components in isolation without loading the full application context. It covers why field injection slows tests, how constructor injection makes services testable, and how to use Mockito for fast, reliable tests. The approach ensures unit tests run quickly and focus solely on the behavior of the code under test.
JUnit 5 Nested Tests: Grouping Related Tests Together
This tutorial demonstrates how to use JUnit 5 nested tests to structure tests hierarchically, making it easier to group related cases and navigate results. It covers simple examples with nested classes, multi-layered nesting for REST controllers, and tips to avoid pitfalls like excessive duplication. Using nested tests improves readability and helps maintain clean, organized test code.
How to Make Your Tests Readable
This article explores how to write more readable and maintainable tests. It covers behavior-focused naming, structured test patterns, minimizing irrelevant details, using test data builders, and intent-revealing helpers to make tests easier to understand and maintain.
How to Create a Test Data Builder
This article explains how to build flexible and expressive test data using custom builders. It covers hiding irrelevant details, setting safe defaults, and combining builders with object mothers to simplify test code. Following these patterns makes tests easier to read, maintain, and adapt to changes in object structures.
DRY and DAMP in Tests
This article explores how to apply DRY and DAMP principles in tests without sacrificing readability. It demonstrates using test data builders to centralize object construction and custom assertions to simplify verification. These patterns help keep tests both maintainable and expressive.
How Do I Test Private Methods?
This article explains why private methods should be tested indirectly through public methods. It discusses how complex private logic can indicate design issues and how refactoring into smaller classes or using appropriate visibility can improve testability. Following this approach keeps tests maintainable and allows refactoring without breaking them.
Four No Bullshit Ways to Easily Increase Your Programming Productivity
This post explores practical ways to save time and reduce friction in programming. It covers mastering your IDE, automating repetitive tasks, optimizing feedback loops, and focusing on writing only necessary code. By applying these principles, you can streamline development, avoid unnecessary work, and make coding more efficient.
Seven Useful Time Management Tips For Developers to Boost Productivity
This post explores practical strategies to improve focus and get more done. It covers saying no to interruptions, managing distractions, planning and prioritizing work, using time-blocking and the Pomodoro technique, and incorporating daily and weekly self-reflection. Applying these tips helps you work proactively and make meaningful progress on your most important tasks.
Using Mockito With JUnit 5
This guide explains how to integrate Mockito with JUnit 5 for effective unit testing. It covers three approaches: manual mock creation, annotation-based initialization, and using the Mockito JUnit 5 extension for automatic mock injection. By following these methods, you can simplify test setup, improve readability, and validate mock usage efficiently.