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 /*
 * @test
 * @bug 8275721 8174269
 * @modules jdk.localedata
 * @summary Checks Chinese time zone names for `UTC` using CLDR are consistent
 * @run testng/othervm -Djava.locale.providers=CLDR ChineseTimeZoneNameTest
 */

import java.time.Instant;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;
import java.util.Locale;

import static org.testng.Assert.assertEquals;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;

@Test
public class ChineseTimeZoneNameTest {

    private static final Locale SIMPLIFIED_CHINESE = Locale.forLanguageTag("zh-Hans");
    private static final Locale TRADITIONAL_CHINESE = Locale.forLanguageTag("zh-Hant");
    private static final ZonedDateTime EPOCH_UTC =
        ZonedDateTime.ofInstant(Instant.ofEpochSecond (0), ZoneId.of ("UTC"));

    @DataProvider(name="locales")
    Object[][] data() {
        return new Object[][] {
            {Locale.CHINESE,                        SIMPLIFIED_CHINESE},
            {Locale.SIMPLIFIED_CHINESE,             SIMPLIFIED_CHINESE},
            {Locale.forLanguageTag("zh-SG"),        SIMPLIFIED_CHINESE},
            {Locale.forLanguageTag("zh-Hans-TW"),   SIMPLIFIED_CHINESE},
            {Locale.forLanguageTag("zh-HK"),        TRADITIONAL_CHINESE},
            {Locale.forLanguageTag("zh-MO"),        TRADITIONAL_CHINESE},
            {Locale.TRADITIONAL_CHINESE,            TRADITIONAL_CHINESE},
            {Locale.forLanguageTag("zh-Hant-CN"),   TRADITIONAL_CHINESE},
        };
    }

    @Test(dataProvider="locales")
    public void test_ChineseTimeZoneNames(Locale testLoc, Locale resourceLoc) {
        assertEquals(DateTimeFormatter.ofPattern("z", testLoc).format(EPOCH_UTC),
                DateTimeFormatter.ofPattern("z", resourceLoc).format(EPOCH_UTC));
        assertEquals(DateTimeFormatter.ofPattern("zzzz", testLoc).format(EPOCH_UTC),
                DateTimeFormatter.ofPattern("zzzz", resourceLoc).format(EPOCH_UTC));
    }
}