test/jdk/java/util/PluggableLocale/DecimalFormatSymbolsProviderTest.java

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/*
 * @test
 * @bug 4052440 8062588 8210406 8174269
 * @summary DecimalFormatSymbolsProvider tests
 * @library providersrc/foobarutils
 *          providersrc/fooprovider
 * @modules java.base/sun.util.locale.provider
 * @build com.foobar.Utils
 *        com.foo.*
 * @run main/othervm -Djava.locale.providers=CLDR,SPI DecimalFormatSymbolsProviderTest
 */

import java.text.DecimalFormatSymbols;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Locale;
import java.util.Set;
import java.util.stream.Stream;

import com.foo.DecimalFormatSymbolsProviderImpl;

import sun.util.locale.provider.LocaleProviderAdapter;

public class DecimalFormatSymbolsProviderTest extends ProviderTest {

    DecimalFormatSymbolsProviderImpl dfsp = new DecimalFormatSymbolsProviderImpl();
    List<Locale> availloc = Arrays.asList(DecimalFormatSymbols.getAvailableLocales());
    List<Locale> providerloc = Arrays.asList(dfsp.getAvailableLocales());
    List<Locale> jreloc = Stream.concat(
            Arrays.stream(LocaleProviderAdapter.forType(LocaleProviderAdapter.Type.CLDR).getAvailableLocales()),
            Arrays.stream(LocaleProviderAdapter.forType(LocaleProviderAdapter.Type.FALLBACK).getAvailableLocales())).toList();
    List<Locale> jreimplloc = Stream.concat(
            Arrays.stream(LocaleProviderAdapter.forType(LocaleProviderAdapter.Type.CLDR).getDateFormatSymbolsProvider().getAvailableLocales()),
            Arrays.stream(LocaleProviderAdapter.forType(LocaleProviderAdapter.Type.FALLBACK).getDecimalFormatSymbolsProvider().getAvailableLocales())).toList();

    public static void main(String[] s) {
        new DecimalFormatSymbolsProviderTest();
    }

    DecimalFormatSymbolsProviderTest() {
        availableLocalesTest();
        objectValidityTest();
    }

    void availableLocalesTest() {
        Set<Locale> localesFromAPI = new HashSet<>(availloc);
        Set<Locale> localesExpected = new HashSet<>(jreloc);
        localesExpected.addAll(providerloc);
        if (localesFromAPI.equals(localesExpected)) {
            System.out.println("availableLocalesTest passed.");
        } else {
            throw new RuntimeException("availableLocalesTest failed");
        }
    }

    void objectValidityTest() {

        for (Locale target: availloc) {
            // pure JRE implementation
            Object[] data = LocaleProviderAdapter.forType(LocaleProviderAdapter.Type.CLDR).getLocaleResources(target).getDecimalFormatSymbolsData();
            boolean jreSupportsLocale = jreimplloc.contains(target);

            // JRE string arrays
            String[] jres = new String[2];
            if (jreSupportsLocale) {
                String[] tmp = (String[]) data[0];
                jres[0] = tmp[9]; // infinity
                jres[1] = tmp[10]; // NaN
            }

            // result object
            DecimalFormatSymbols dfs = DecimalFormatSymbols.getInstance(target);
            String[] result = new String[2];
            result[0] = dfs.getInfinity();
            result[1] = dfs.getNaN();

            // provider's object (if any)
            DecimalFormatSymbols providersDfs= null;
            String[] providers = new String[2];
            if (providerloc.contains(target)) {
                providersDfs = dfsp.getInstance(target);
                providers[0] = providersDfs.getInfinity();
                providers[1] = providersDfs.getNaN();
            }

            for (int i = 0; i < result.length; i ++) {
                checkValidity(target, jres[i], providers[i], result[i], jreSupportsLocale);
            }
        }
    }
}