JUnit 5 Assumptions: Conditional Test Execution Explained
Learn how to use JUnit 5 assumptions for conditional test execution with assumeTrue, assumeFalse, and assumingThat, including real-world examples
All Tutorials
Organizing Test Classes and Test Suites in JUnit 5
Learn how to organize test classes and test suites in JUnit 5 with annotations, suites, and best practices for scalable, maintainable Java testing
Parameterized Tests in JUnit: Writing Data-Driven Tests
Learn how to write data-driven tests in JUnit 5 using parameterized tests with @ValueSource, @CsvSource, @MethodSource, and @CsvFileSource
Tagging and Filtering Tests in JUnit: Fast vs Slow Test Execution
Learn how to use JUnit 5 tagging and filtering for fast vs slow test execution, improving CI/CD pipelines, maintainability, and developer productivity
Nested Tests in JUnit: Structuring Complex Test Scenarios
Learn how to use nested tests in JUnit 5 to structure complex test scenarios with clear grouping, readability, and maintainability
JUnit 5 Extensions: Extending the Testing Framework
Learn how to extend JUnit 5 using the Extension Model with examples like MockitoExtension, SpringExtension, and custom extensions for advanced testing
Dependency Injection in JUnit 5 Tests
Learn how to use dependency injection in JUnit 5 tests with built-in support, Mockito, Spring, and Testcontainers for cleaner, maintainable test suites
Repeated Tests in JUnit: Running Tests Multiple Times
Learn how to use repeated tests in JUnit 5 with @RepeatedTest, custom display names, RepetitionInfo, and real-world scenarios for Java applications
Timeout Tests in JUnit: Handling Long-Running Code
Learn how to use timeout tests in JUnit 5 with @Timeout and assertTimeout to handle long-running code, flaky tests, and performance-critical scenarios
Testing Exceptions and Error Handling in JUnit
Master exception testing in JUnit 5 with assertThrows, assertDoesNotThrow, custom exceptions, Mockito stubbing, and best practices for robust error handling.