unit-test-parameterized
Parameterized Unit Tests with JUnit 5
Overview
Provides patterns for parameterized unit tests in Java using JUnit 5. Covers @ValueSource, @CsvSource, @MethodSource, @EnumSource, @ArgumentsSource, and custom display names. Reduces test duplication by running the same test logic with multiple input values.
When to Use
- Writing JUnit tests with multiple input combinations
- Implementing data-driven tests in Java
- Running same test with different values (boundary analysis)
- Testing multiple scenarios from single test method
Instructions
- Add dependency: Ensure
junit-jupiter-paramsis on test classpath (included injunit-jupiter) - Choose source:
@ValueSourcefor simple values,@CsvSourcefor tabular data,@MethodSourcefor complex objects - Match parameters: Test method parameters must match data source types
- Set display names: Use
name = "{0}..."for readable output
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