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/*
* This file is available under and governed by the GNU General Public
* License version 2 only, as published by the Free Software Foundation.
* However, the following notice accompanied the original version of this
* file:
*
* Copyright (c) 2008-2012, Stephen Colebourne & Michael Nascimento Santos
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* modification, are permitted provided that the following conditions are met:
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package test.java.time;
import static org.testng.Assert.assertEquals;
import java.time.DateTimeException;
import java.time.Instant;
import java.time.LocalDate;
import java.time.LocalTime;
import java.time.Month;
import java.time.OffsetDateTime;
import java.time.Year;
import java.time.ZoneOffset;
import org.testng.annotations.Test;
/**
* Test OffsetDateTime creation.
*/
@Test
public class TestOffsetDateTime_instants {
private static final ZoneOffset OFFSET_PONE = ZoneOffset.ofHours(1);
private static final ZoneOffset OFFSET_MAX = ZoneOffset.ofHours(18);
private static final ZoneOffset OFFSET_MIN = ZoneOffset.ofHours(-18);
//-----------------------------------------------------------------------
@Test(expectedExceptions=NullPointerException.class)
public void factory_ofInstant_nullInstant() {
OffsetDateTime.ofInstant((Instant) null, OFFSET_PONE);
}
@Test(expectedExceptions=NullPointerException.class)
public void factory_ofInstant_nullOffset() {
Instant instant = Instant.ofEpochSecond(0L);
OffsetDateTime.ofInstant(instant, (ZoneOffset) null);
}
public void factory_ofInstant_allSecsInDay() {
for (int i = 0; i < (24 * 60 * 60); i++) {
Instant instant = Instant.ofEpochSecond(i);
OffsetDateTime test = OffsetDateTime.ofInstant(instant, OFFSET_PONE);
assertEquals(test.getYear(), 1970);
assertEquals(test.getMonth(), Month.JANUARY);
assertEquals(test.getDayOfMonth(), 1 + (i >= 23 * 60 * 60 ? 1 : 0));
assertEquals(test.getHour(), ((i / (60 * 60)) + 1) % 24);
assertEquals(test.getMinute(), (i / 60) % 60);
assertEquals(test.getSecond(), i % 60);
}
}
public void factory_ofInstant_allDaysInCycle() {
// sanity check using different algorithm
OffsetDateTime expected = OffsetDateTime.of(LocalDate.of(1970, 1, 1), LocalTime.of(0, 0, 0, 0), ZoneOffset.UTC);
for (long i = 0; i < 146097; i++) {
Instant instant = Instant.ofEpochSecond(i * 24L * 60L * 60L);
OffsetDateTime test = OffsetDateTime.ofInstant(instant, ZoneOffset.UTC);
assertEquals(test, expected);
expected = expected.plusDays(1);
}
}
public void factory_ofInstant_history() {
doTest_factory_ofInstant_all(-2820, 2820);
}
//-----------------------------------------------------------------------
public void factory_ofInstant_minYear() {
doTest_factory_ofInstant_all(Year.MIN_VALUE, Year.MIN_VALUE + 420);
}
@Test(expectedExceptions=DateTimeException.class)
public void factory_ofInstant_tooLow() {
long days_0000_to_1970 = (146097 * 5) - (30 * 365 + 7);
int year = Year.MIN_VALUE - 1;
long days = (year * 365L + (year / 4 - year / 100 + year / 400)) - days_0000_to_1970;
Instant instant = Instant.ofEpochSecond(days * 24L * 60L * 60L);
OffsetDateTime.ofInstant(instant, ZoneOffset.UTC);
}
public void factory_ofInstant_maxYear() {
doTest_factory_ofInstant_all(Year.MAX_VALUE - 420, Year.MAX_VALUE);
}
@Test(expectedExceptions=DateTimeException.class)
public void factory_ofInstant_tooBig() {
long days_0000_to_1970 = (146097 * 5) - (30 * 365 + 7);
long year = Year.MAX_VALUE + 1L;
long days = (year * 365L + (year / 4 - year / 100 + year / 400)) - days_0000_to_1970;
Instant instant = Instant.ofEpochSecond(days * 24L * 60L * 60L);
OffsetDateTime.ofInstant(instant, ZoneOffset.UTC);
}
//-----------------------------------------------------------------------
public void factory_ofInstant_minWithMinOffset() {
long days_0000_to_1970 = (146097 * 5) - (30 * 365 + 7);
int year = Year.MIN_VALUE;
long days = (year * 365L + (year / 4 - year / 100 + year / 400)) - days_0000_to_1970;
Instant instant = Instant.ofEpochSecond(days * 24L * 60L * 60L - OFFSET_MIN.getTotalSeconds());
OffsetDateTime test = OffsetDateTime.ofInstant(instant, OFFSET_MIN);
assertEquals(test.getYear(), Year.MIN_VALUE);
assertEquals(test.getMonth().getValue(), 1);
assertEquals(test.getDayOfMonth(), 1);
assertEquals(test.getOffset(), OFFSET_MIN);
assertEquals(test.getHour(), 0);
assertEquals(test.getMinute(), 0);
assertEquals(test.getSecond(), 0);
assertEquals(test.getNano(), 0);
}
public void factory_ofInstant_minWithMaxOffset() {
long days_0000_to_1970 = (146097 * 5) - (30 * 365 + 7);
int year = Year.MIN_VALUE;
long days = (year * 365L + (year / 4 - year / 100 + year / 400)) - days_0000_to_1970;
Instant instant = Instant.ofEpochSecond(days * 24L * 60L * 60L - OFFSET_MAX.getTotalSeconds());
OffsetDateTime test = OffsetDateTime.ofInstant(instant, OFFSET_MAX);
assertEquals(test.getYear(), Year.MIN_VALUE);
assertEquals(test.getMonth().getValue(), 1);
assertEquals(test.getDayOfMonth(), 1);
assertEquals(test.getOffset(), OFFSET_MAX);
assertEquals(test.getHour(), 0);
assertEquals(test.getMinute(), 0);
assertEquals(test.getSecond(), 0);
assertEquals(test.getNano(), 0);
}
public void factory_ofInstant_maxWithMinOffset() {
long days_0000_to_1970 = (146097 * 5) - (30 * 365 + 7);
int year = Year.MAX_VALUE;
long days = (year * 365L + (year / 4 - year / 100 + year / 400)) + 365 - days_0000_to_1970;
Instant instant = Instant.ofEpochSecond((days + 1) * 24L * 60L * 60L - 1 - OFFSET_MIN.getTotalSeconds());
OffsetDateTime test = OffsetDateTime.ofInstant(instant, OFFSET_MIN);
assertEquals(test.getYear(), Year.MAX_VALUE);
assertEquals(test.getMonth().getValue(), 12);
assertEquals(test.getDayOfMonth(), 31);
assertEquals(test.getOffset(), OFFSET_MIN);
assertEquals(test.getHour(), 23);
assertEquals(test.getMinute(), 59);
assertEquals(test.getSecond(), 59);
assertEquals(test.getNano(), 0);
}
public void factory_ofInstant_maxWithMaxOffset() {
long days_0000_to_1970 = (146097 * 5) - (30 * 365 + 7);
int year = Year.MAX_VALUE;
long days = (year * 365L + (year / 4 - year / 100 + year / 400)) + 365 - days_0000_to_1970;
Instant instant = Instant.ofEpochSecond((days + 1) * 24L * 60L * 60L - 1 - OFFSET_MAX.getTotalSeconds());
OffsetDateTime test = OffsetDateTime.ofInstant(instant, OFFSET_MAX);
assertEquals(test.getYear(), Year.MAX_VALUE);
assertEquals(test.getMonth().getValue(), 12);
assertEquals(test.getDayOfMonth(), 31);
assertEquals(test.getOffset(), OFFSET_MAX);
assertEquals(test.getHour(), 23);
assertEquals(test.getMinute(), 59);
assertEquals(test.getSecond(), 59);
assertEquals(test.getNano(), 0);
}
//-----------------------------------------------------------------------
@Test(expectedExceptions=DateTimeException.class)
public void factory_ofInstant_maxInstantWithMaxOffset() {
Instant instant = Instant.ofEpochSecond(Long.MAX_VALUE);
OffsetDateTime.ofInstant(instant, OFFSET_MAX);
}
@Test(expectedExceptions=DateTimeException.class)
public void factory_ofInstant_maxInstantWithMinOffset() {
Instant instant = Instant.ofEpochSecond(Long.MAX_VALUE);
OffsetDateTime.ofInstant(instant, OFFSET_MIN);
}
//-----------------------------------------------------------------------
private void doTest_factory_ofInstant_all(long minYear, long maxYear) {
long days_0000_to_1970 = (146097 * 5) - (30 * 365 + 7);
int minOffset = (minYear <= 0 ? 0 : 3);
int maxOffset = (maxYear <= 0 ? 0 : 3);
long minDays = (minYear * 365L + ((minYear + minOffset) / 4L - (minYear + minOffset) / 100L + (minYear + minOffset) / 400L)) - days_0000_to_1970;
long maxDays = (maxYear * 365L + ((maxYear + maxOffset) / 4L - (maxYear + maxOffset) / 100L + (maxYear + maxOffset) / 400L)) + 365L - days_0000_to_1970;
final LocalDate maxDate = LocalDate.of(Year.MAX_VALUE, 12, 31);
OffsetDateTime expected = OffsetDateTime.of(LocalDate.of((int) minYear, 1, 1), LocalTime.of(0, 0, 0, 0), ZoneOffset.UTC);
for (long i = minDays; i < maxDays; i++) {
Instant instant = Instant.ofEpochSecond(i * 24L * 60L * 60L);
try {
OffsetDateTime test = OffsetDateTime.ofInstant(instant, ZoneOffset.UTC);
assertEquals(test, expected);
if (expected.toLocalDate().equals(maxDate) == false) {
expected = expected.plusDays(1);
}
} catch (RuntimeException|Error ex) {
System.out.println("Error: " + i + " " + expected);
throw ex;
}
}
}
// for performance testing
// private void doTest_factory_ofInstant_all(int minYear, int maxYear) {
// long days_0000_to_1970 = (146097 * 5) - (30 * 365 + 7);
// int minOffset = (minYear <= 0 ? 0 : 3);
// int maxOffset = (maxYear <= 0 ? 0 : 3);
// long minDays = (long) (minYear * 365L + ((minYear + minOffset) / 4L - (minYear + minOffset) / 100L + (minYear + minOffset) / 400L)) - days_0000_to_1970;
// long maxDays = (long) (maxYear * 365L + ((maxYear + maxOffset) / 4L - (maxYear + maxOffset) / 100L + (maxYear + maxOffset) / 400L)) + 365L - days_0000_to_1970;
//
// OffsetDateTime expected = OffsetDateTime.dateTime(minYear, 1, 1, 0, 0, 0, 0, ZoneOffset.UTC);
// Date cutover = new Date(Long.MIN_VALUE);
// GregorianCalendar cal = new GregorianCalendar(TimeZone.getTimeZone("UTC"));
// cal.setGregorianChange(cutover);
// for (long i = minDays; i < maxDays; i++) {
// Instant instant = Instant.instant(i * 24L * 60L * 60L);
// try {
// cal.setTimeInMillis(instant.getEpochSecond() * 1000L);
// assertEquals(cal.get(GregorianCalendar.MONTH), expected.getMonth().getValue() - 1);
// assertEquals(cal.get(GregorianCalendar.DAY_OF_MONTH), expected.getDayOfMonth().getValue());
// expected = expected.plusDays(1);
// } catch (RuntimeException ex) {
// System.out.println("Error: " + i + " " + expected);
// throw ex;
// } catch (Error ex) {
// System.out.println("Error: " + i + " " + expected);
// throw ex;
// }
// }
// }
//-----------------------------------------------------------------------
public void test_toInstant_19700101() {
OffsetDateTime dt = OffsetDateTime.of(LocalDate.of(1970, 1, 1), LocalTime.of(0, 0, 0, 0), ZoneOffset.UTC);
Instant test = dt.toInstant();
assertEquals(test.getEpochSecond(), 0);
assertEquals(test.getNano(), 0);
}
public void test_toInstant_19700101_oneNano() {
OffsetDateTime dt = OffsetDateTime.of(LocalDate.of(1970, 1, 1), LocalTime.of(0, 0, 0, 1), ZoneOffset.UTC);
Instant test = dt.toInstant();
assertEquals(test.getEpochSecond(), 0);
assertEquals(test.getNano(), 1);
}
public void test_toInstant_19700101_minusOneNano() {
OffsetDateTime dt = OffsetDateTime.of(LocalDate.of(1969, 12, 31), LocalTime.of(23, 59, 59, 999999999), ZoneOffset.UTC);
Instant test = dt.toInstant();
assertEquals(test.getEpochSecond(), -1);
assertEquals(test.getNano(), 999999999);
}
public void test_toInstant_19700102() {
OffsetDateTime dt = OffsetDateTime.of(LocalDate.of(1970, 1, 2), LocalTime.of(0, 0, 0, 0), ZoneOffset.UTC);
Instant test = dt.toInstant();
assertEquals(test.getEpochSecond(), 24L * 60L * 60L);
assertEquals(test.getNano(), 0);
}
public void test_toInstant_19691231() {
OffsetDateTime dt = OffsetDateTime.of(LocalDate.of(1969, 12, 31), LocalTime.of(0, 0, 0, 0), ZoneOffset.UTC);
Instant test = dt.toInstant();
assertEquals(test.getEpochSecond(), -24L * 60L * 60L);
assertEquals(test.getNano(), 0);
}
//-----------------------------------------------------------------------
public void test_toEpochSecond_19700101() {
OffsetDateTime dt = OffsetDateTime.of(LocalDate.of(1970, 1, 1), LocalTime.of(0, 0, 0, 0), ZoneOffset.UTC);
assertEquals(dt.toEpochSecond(), 0);
}
public void test_toEpochSecond_19700101_oneNano() {
OffsetDateTime dt = OffsetDateTime.of(LocalDate.of(1970, 1, 1), LocalTime.of( 0, 0, 0, 1), ZoneOffset.UTC);
assertEquals(dt.toEpochSecond(), 0);
}
public void test_toEpochSecond_19700101_minusOneNano() {
OffsetDateTime dt = OffsetDateTime.of(LocalDate.of(1969, 12, 31), LocalTime.of(23, 59, 59, 999999999), ZoneOffset.UTC);
assertEquals(dt.toEpochSecond(), -1);
}
public void test_toEpochSecond_19700102() {
OffsetDateTime dt = OffsetDateTime.of(LocalDate.of(1970, 1, 2), LocalTime.of(0, 0, 0, 0), ZoneOffset.UTC);
assertEquals(dt.toEpochSecond(), 24L * 60L * 60L);
}
public void test_toEpochSecond_19691231() {
OffsetDateTime dt = OffsetDateTime.of(LocalDate.of(1969, 12, 31), LocalTime.of(0, 0, 0, 0), ZoneOffset.UTC);
assertEquals(dt.toEpochSecond(), -24L * 60L * 60L);
}
}