@Test
void toStringWithDate() {

    assertThat(QueryParamHelper.toString(LocalDate.of(2020, Month.JULY, 31))).isEqualTo("2020-07-31");
    assertThat(QueryParamHelper.toString(ZonedDateTime.of(LocalDateTime.of(2020, Month.JULY, 31, 12, 0, 0), ZoneId.of("UTC")))).isEqualTo("2020-07-31T12:00:00Z");
}