assira/assira.commons/src/test/java/net/ranides/assira/time/ZonedDateTest.java

package net.ranides.assira.time;

import org.junit.Test;

import java.time.LocalDate;
import java.time.ZoneId;
import java.time.ZonedDateTime;

import static org.junit.Assert.*;

public class ZonedDateTest {

    @Test
    public void testConstructor() {
        ZonedDate date = ZonedDate.of(DateTimeZones.PL, LocalDate.of(2020, 11, 28));

        assertEquals("2020-11-28 [Europe/Warsaw]", date.toString());
        assertEquals(DateTimeZones.PL, ZoneId.from(date));
    }

    @Test
    public void testEpochSeconds() {
        ZonedDateTime datetime1 = DateTimeLiteral.datetimeUtc(2020, 11, 20, 20, 45, 0);
        ZonedDateTime datetime2 = DateTimeLiteral.datetimeUtc(2020, 11, 20, 20, 45, 0);
        ZonedDateTime datetime3 = DateTimeLiteral.datetimeUtc(2020, 11, 20, 23, 45, 0);

        ZonedDate date1 = ZonedDate.of(DateTimeUtils.withZone(datetime1, DateTimeZones.UTC));
        ZonedDate date2 = ZonedDate.of(DateTimeUtils.withZone(datetime2, DateTimeZones.PL));
        ZonedDate date3 = ZonedDate.of(DateTimeUtils.withZone(datetime3, DateTimeZones.PL));

        assertEquals("2020-11-20 [UTC]", date1.toString());
        assertEquals("2020-11-20 [Europe/Warsaw]", date2.toString());
        assertEquals("2020-11-21 [Europe/Warsaw]", date3.toString());

        assertEquals(1605830400L, date1.withMin().toEpochSecond());
        assertEquals(1605826800L, date2.withMin().toEpochSecond());
        assertEquals(1605913200L, date3.withMin().toEpochSecond());

        ZonedDate date4 = ZonedDate.of(DateTimeZones.UTC, datetime1.toLocalDate());
        ZonedDate date5 = ZonedDate.of(DateTimeZones.PL, datetime2.toLocalDate());
        ZonedDate date6 = ZonedDate.of(DateTimeZones.PL, datetime3.toLocalDate());

        assertEquals("2020-11-20 [UTC]", date4.toString());
        assertEquals("2020-11-20 [Europe/Warsaw]", date5.toString());
        assertEquals("2020-11-20 [Europe/Warsaw]", date6.toString());

        assertEquals(1605830400L, date4.withMin().toEpochSecond());
        assertEquals(1605826800L, date5.withMin().toEpochSecond());
        assertEquals(1605826800L, date6.withMin().toEpochSecond());
    }

    @Test
    public void testEpochDay() {
        ZonedDateTime datetime1 = DateTimeLiteral.datetimeUtc(2020, 11, 20, 20, 45, 0);
        ZonedDateTime datetime2 = DateTimeLiteral.datetimeUtc(2020, 11, 20, 20, 45, 0);
        ZonedDateTime datetime3 = DateTimeLiteral.datetimeUtc(2020, 11, 20, 23, 45, 0);

        ZonedDate date1 = ZonedDate.of(DateTimeUtils.withZone(datetime1, DateTimeZones.UTC));
        ZonedDate date2 = ZonedDate.of(DateTimeUtils.withZone(datetime2, DateTimeZones.PL));
        ZonedDate date3 = ZonedDate.of(DateTimeUtils.withZone(datetime3, DateTimeZones.PL));

        assertEquals("2020-11-20 [UTC]", date1.toString());
        assertEquals("2020-11-20 [Europe/Warsaw]", date2.toString());
        assertEquals("2020-11-21 [Europe/Warsaw]", date3.toString());

        assertEquals(18586, date1.toEpochDay());
        assertEquals(18586, date2.toEpochDay());
        assertEquals(18587, date3.toEpochDay());

        ZonedDate date4 = ZonedDate.of(DateTimeZones.UTC, datetime1.toLocalDate());
        ZonedDate date5 = ZonedDate.of(DateTimeZones.PL, datetime2.toLocalDate());
        ZonedDate date6 = ZonedDate.of(DateTimeZones.PL, datetime3.toLocalDate());

        assertEquals("2020-11-20 [UTC]", date4.toString());
        assertEquals("2020-11-20 [Europe/Warsaw]", date5.toString());
        assertEquals("2020-11-20 [Europe/Warsaw]", date6.toString());

        assertEquals(18586, date4.toEpochDay());
        assertEquals(18586, date5.toEpochDay());
        assertEquals(18586, date6.toEpochDay());
    }
}