Simple example that explain how the MethodSource annotation from JUnit 5 works

ValueSourceSimpleExample.java

class MyTestClass {
    
    @DisplayName("Date must be from the current year")
    @ParameterizedTest(name = "Check the current year of {0}")
    @MethodSource("dateList")
    void myTest(LocalDate date) {
        assertThat(date).hasYear(2023);
    }

    static Stream<Arguments> dateList() {
        return Stream.of(
                Arguments.arguments(LocalDate.parse("2023-08-15")),
                Arguments.arguments(LocalDate.parse("2023-03-01")),
                Arguments.arguments(LocalDate.parse("2023-10-23"))
        );
    }
}