![Three-step flow. Step 1 lists the sources @ValueSource, @NullAndEmptySource, @EnumSource, @CsvSource, @CsvFileSource, @MethodSource, @FieldSource and @ArgumentsSource, all pointing to step 2, a Stream of Arguments with one entry per invocation. Step 3 shows per invocation the conversion of a string to LocalDate, aggregation with ArgumentsAccessor or @AggregateWith, the display name such as [1] "10001", and the test method run with @BeforeEach and @AfterEach.](https://howtodoinjava.com/wp-content/uploads/2026/10/junit-parameterized-test-argument-sources-768x472.png)
JUnit 5 Parameterized Tests: @ParameterizedTest With Examples
Write JUnit 5 parameterized tests with @ValueSource, @CsvSource, @MethodSource, @FieldSource and @ParameterizedClass, display names and JUnit 6 notes.
TestNG @DataProvider for Repeated Tests
Learn to use the TestNG @DataProvider annotation that helps us to write data-driven parameter-based tests to run tests with different inputs.
TestNG @Parameters
TestNG parameterization feature allows user to pass parameters to tests as arguments. This is supported by using the testng @Parameters annotation.