@TestFactory
Stream<DynamicTest> should_NotDetectCorpusChristiAsHoliday_When_CorpusChristiIsDisabled() {

  DynamicTest year1980 =
      DynamicTest.dynamicTest(
          "year 1980",
          () -> assertThat(converter.isGermanHoliday(LocalDate.parse("1980-06-05"))).isFalse());
  DynamicTest year2020 =
      DynamicTest.dynamicTest(
          "year 2020",
          () -> assertThat(converter.isGermanHoliday(LocalDate.parse("2020-06-11"))).isFalse());
  return Stream.of(year1980, year2020);
}