test/jdk/java/time/test/java/time/format/TestDateTimeParsing.java

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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) 2014, Stephen Colebourne & Michael Nascimento Santos
 *
 * All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *  * Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
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package test.java.time.format;

import static java.time.temporal.ChronoField.EPOCH_DAY;
import static java.time.temporal.ChronoField.INSTANT_SECONDS;
import static java.time.temporal.ChronoField.MICRO_OF_SECOND;
import static java.time.temporal.ChronoField.MILLI_OF_SECOND;
import static java.time.temporal.ChronoField.NANO_OF_SECOND;
import static java.time.temporal.ChronoField.OFFSET_SECONDS;
import static java.time.temporal.ChronoField.SECOND_OF_DAY;
import static org.testng.Assert.assertEquals;

import java.time.DateTimeException;
import java.time.Instant;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.ZoneOffset;
import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;
import java.time.format.DateTimeFormatterBuilder;
import java.time.temporal.TemporalAccessor;

import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;

/**
 * Test parsing of edge cases.
 */
@Test
public class TestDateTimeParsing {

    private static final ZoneId PARIS = ZoneId.of("Europe/Paris");
    private static final ZoneOffset OFFSET_0230 = ZoneOffset.ofHoursMinutes(2, 30);

    private static final DateTimeFormatter LOCALFIELDS = new DateTimeFormatterBuilder()
        .appendPattern("yyyy-MM-dd HH:mm:ss").toFormatter();
    private static final DateTimeFormatter LOCALFIELDS_ZONEID = new DateTimeFormatterBuilder()
        .appendPattern("yyyy-MM-dd HH:mm:ss ").appendZoneId().toFormatter();
    private static final DateTimeFormatter LOCALFIELDS_OFFSETID = new DateTimeFormatterBuilder()
        .appendPattern("yyyy-MM-dd HH:mm:ss ").appendOffsetId().toFormatter();
    private static final DateTimeFormatter LOCALFIELDS_WITH_PARIS = LOCALFIELDS.withZone(PARIS);
    private static final DateTimeFormatter LOCALFIELDS_WITH_0230 = LOCALFIELDS.withZone(OFFSET_0230);
    private static final DateTimeFormatter INSTANT = new DateTimeFormatterBuilder()
        .appendInstant().toFormatter();
    private static final DateTimeFormatter INSTANT_WITH_PARIS = INSTANT.withZone(PARIS);
    private static final DateTimeFormatter INSTANT_WITH_0230 = INSTANT.withZone(OFFSET_0230);
    private static final DateTimeFormatter INSTANT_OFFSETID = new DateTimeFormatterBuilder()
        .appendInstant().appendLiteral(' ').appendOffsetId().toFormatter();
    private static final DateTimeFormatter INSTANT_OFFSETSECONDS = new DateTimeFormatterBuilder()
        .appendInstant().appendLiteral(' ').appendValue(OFFSET_SECONDS).toFormatter();
    private static final DateTimeFormatter INSTANTSECONDS = new DateTimeFormatterBuilder()
        .appendValue(INSTANT_SECONDS).toFormatter();
    private static final DateTimeFormatter INSTANTSECONDS_WITH_PARIS = INSTANTSECONDS.withZone(PARIS);
    private static final DateTimeFormatter INSTANTSECONDS_NOS = new DateTimeFormatterBuilder()
        .appendValue(INSTANT_SECONDS).appendLiteral('.').appendValue(NANO_OF_SECOND).toFormatter();
    private static final DateTimeFormatter INSTANTSECONDS_NOS_WITH_PARIS = INSTANTSECONDS_NOS.withZone(PARIS);
    private static final DateTimeFormatter INSTANTSECONDS_OFFSETSECONDS = new DateTimeFormatterBuilder()
        .appendValue(INSTANT_SECONDS).appendLiteral(' ').appendValue(OFFSET_SECONDS).toFormatter();

    @DataProvider(name = "instantZones")
    Object[][] data_instantZones() {
        return new Object[][] {
            {LOCALFIELDS_ZONEID, "2014-06-30 01:02:03 Europe/Paris", ZonedDateTime.of(2014, 6, 30, 1, 2, 3, 0, PARIS)},
            {LOCALFIELDS_ZONEID, "2014-06-30 01:02:03 +02:30", ZonedDateTime.of(2014, 6, 30, 1, 2, 3, 0, OFFSET_0230)},
            {LOCALFIELDS_OFFSETID, "2014-06-30 01:02:03 +02:30", ZonedDateTime.of(2014, 6, 30, 1, 2, 3, 0, OFFSET_0230)},
            {LOCALFIELDS_WITH_PARIS, "2014-06-30 01:02:03", ZonedDateTime.of(2014, 6, 30, 1, 2, 3, 0, PARIS)},
            {LOCALFIELDS_WITH_0230, "2014-06-30 01:02:03", ZonedDateTime.of(2014, 6, 30, 1, 2, 3, 0, OFFSET_0230)},
            {INSTANT_WITH_PARIS, "2014-06-30T01:02:03Z", ZonedDateTime.of(2014, 6, 30, 1, 2, 3, 0, ZoneOffset.UTC).withZoneSameInstant(PARIS)},
            {INSTANT_WITH_0230, "2014-06-30T01:02:03Z", ZonedDateTime.of(2014, 6, 30, 1, 2, 3, 0, ZoneOffset.UTC).withZoneSameInstant(OFFSET_0230)},
            {INSTANT_OFFSETID, "2014-06-30T01:02:03Z +02:30", ZonedDateTime.of(2014, 6, 30, 1, 2, 3, 0, ZoneOffset.UTC).withZoneSameInstant(OFFSET_0230)},
            {INSTANT_OFFSETSECONDS, "2014-06-30T01:02:03Z 9000", ZonedDateTime.of(2014, 6, 30, 1, 2, 3, 0, ZoneOffset.UTC).withZoneSameInstant(OFFSET_0230)},
            {INSTANTSECONDS_WITH_PARIS, "86402", Instant.ofEpochSecond(86402).atZone(PARIS)},
            {INSTANTSECONDS_NOS_WITH_PARIS, "86402.123456789", Instant.ofEpochSecond(86402, 123456789).atZone(PARIS)},
            {INSTANTSECONDS_OFFSETSECONDS, "86402 9000", Instant.ofEpochSecond(86402).atZone(OFFSET_0230)},
        };
    }

    @Test(dataProvider = "instantZones")
    public void test_parse_instantZones_ZDT(DateTimeFormatter formatter, String text, ZonedDateTime expected) {
        TemporalAccessor actual = formatter.parse(text);
        assertEquals(ZonedDateTime.from(actual), expected);
    }

    @Test(dataProvider = "instantZones")
    public void test_parse_instantZones_LDT(DateTimeFormatter formatter, String text, ZonedDateTime expected) {
        TemporalAccessor actual = formatter.parse(text);
        assertEquals(LocalDateTime.from(actual), expected.toLocalDateTime());
    }

    @Test(dataProvider = "instantZones")
    public void test_parse_instantZones_Instant(DateTimeFormatter formatter, String text, ZonedDateTime expected) {
        TemporalAccessor actual = formatter.parse(text);
        assertEquals(Instant.from(actual), expected.toInstant());
    }

    @Test(dataProvider = "instantZones")
    public void test_parse_instantZones_supported(DateTimeFormatter formatter, String text, ZonedDateTime expected) {
        TemporalAccessor actual = formatter.parse(text);
        assertEquals(actual.isSupported(INSTANT_SECONDS), true);
        assertEquals(actual.isSupported(EPOCH_DAY), true);
        assertEquals(actual.isSupported(SECOND_OF_DAY), true);
        assertEquals(actual.isSupported(NANO_OF_SECOND), true);
        assertEquals(actual.isSupported(MICRO_OF_SECOND), true);
        assertEquals(actual.isSupported(MILLI_OF_SECOND), true);
    }

    //-----------------------------------------------------------------------
    @DataProvider(name = "instantNoZone")
    Object[][] data_instantNoZone() {
        return new Object[][] {
            {INSTANT, "2014-06-30T01:02:03Z", ZonedDateTime.of(2014, 6, 30, 1, 2, 3, 0, ZoneOffset.UTC).toInstant()},
            {INSTANTSECONDS, "86402", Instant.ofEpochSecond(86402)},
            {INSTANTSECONDS_NOS, "86402.123456789", Instant.ofEpochSecond(86402, 123456789)},
        };
    }

    @Test(dataProvider = "instantNoZone", expectedExceptions = DateTimeException.class)
    public void test_parse_instantNoZone_ZDT(DateTimeFormatter formatter, String text, Instant expected) {
        TemporalAccessor actual = formatter.parse(text);
        ZonedDateTime.from(actual);
    }

    @Test(dataProvider = "instantNoZone", expectedExceptions = DateTimeException.class)
    public void test_parse_instantNoZone_LDT(DateTimeFormatter formatter, String text, Instant expected) {
        TemporalAccessor actual = formatter.parse(text);
        LocalDateTime.from(actual);
    }

    @Test(dataProvider = "instantNoZone")
    public void test_parse_instantNoZone_Instant(DateTimeFormatter formatter, String text, Instant expected) {
        TemporalAccessor actual = formatter.parse(text);
        assertEquals(Instant.from(actual), expected);
    }

    @Test(dataProvider = "instantNoZone")
    public void test_parse_instantNoZone_supported(DateTimeFormatter formatter, String text, Instant expected) {
        TemporalAccessor actual = formatter.parse(text);
        assertEquals(actual.isSupported(INSTANT_SECONDS), true);
        assertEquals(actual.isSupported(EPOCH_DAY), false);
        assertEquals(actual.isSupported(SECOND_OF_DAY), false);
        assertEquals(actual.isSupported(NANO_OF_SECOND), true);
        assertEquals(actual.isSupported(MICRO_OF_SECOND), true);
        assertEquals(actual.isSupported(MILLI_OF_SECOND), true);
    }

}