public abstract Duration parse(String text);
@Test
    public void testLongSeconds() {
        Assert.assertEquals(Duration.ofSeconds(1), DurationStyle.LONG.parse("1 seconds"));
        Assert.assertEquals(Duration.ofSeconds(10), DurationStyle.LONG.parse("10 seconds"));
        Assert.assertThrows(DateTimeException.class, () -> DurationStyle.LONG.parse("a seconds"));
        Assert.assertThrows(DateTimeException.class, () -> DurationStyle.LONG.parse("3 scond"));
        Assert.assertThrows(DateTimeException.class, () -> DurationStyle.LONG.parse("3s"));
        Assert.assertThrows(DateTimeException.class, () -> DurationStyle.LONG.parse("3S"));
    }