//    @Test
    //    public void testToDate_Null() throws Exception {
    //        assertThat(toDate(null, Locale.JAPAN), is(nullValue()));
    //    }

    /**
     * @throws Exception
     */
    @Test
    public void testToDate_EmptyString() throws Exception {
        assertThat(toDate("", Locale.JAPAN), is(nullValue()));
    }

    /**
     * @throws Exception
     */
    @Test

    }

    /**
     * @throws Exception
     */
    public void testFindFractionDelimeter() throws Exception {
        final String delim = NumberConversionUtil.findDecimalSeparator(Locale.JAPAN);
        assertEquals(".", delim);
    }

    /**
     * @throws Exception
     */
    public void testFindFractionDelimeter2() throws Exception {

    /**
     * @throws Exception
     */
    public void testNormalize() throws Exception {
        assertEquals("1", "1000.00", DecimalFormatUtil.normalize("1,000.00", Locale.JAPAN));
        assertEquals("2", "1000", DecimalFormatUtil.normalize("1,000", Locale.JAPAN));
        assertEquals("3", "1000.00", DecimalFormatUtil.normalize("1.000,00", Locale.GERMAN));
    }

@NullMarked
public class EnumBiMapTest extends TestCase {
  private enum Currency {
    DOLLAR,
    FRANC,
    PESO,
    POUND,
    YEN
  }

  private enum Country {
    CANADA,
    CHILE,
    JAPAN,
    SWITZERLAND,
    UK
  }

  @AndroidIncompatible // test-suite builders
  public static final class EnumBiMapGenerator implements TestBiMapGenerator<Country, Currency> {
    @SuppressWarnings("unchecked")

@NullUnmarked
public class EnumHashBiMapTest extends TestCase {
  private enum Currency {
    DOLLAR,
    FRANC,
    PESO,
    POUND,
    YEN
  }

  private enum Country {
    CANADA,
    CHILE,
    JAPAN,
    SWITZERLAND,
    UK
  }

  @AndroidIncompatible // test-suite builders
  public static final class EnumHashBiMapGenerator implements TestBiMapGenerator<Country, String> {
    @SuppressWarnings("unchecked")

        assertEquals("1", LocaleUtil.getDefault(), LocaleUtil.getLocale(null));
        assertEquals("2", Locale.JAPANESE, LocaleUtil.getLocale("ja"));
        assertEquals("3", Locale.JAPAN, LocaleUtil.getLocale("ja_JP"));
    }

@NullMarked
public class EnumBiMapTest extends TestCase {
  private enum Currency {
    DOLLAR,
    FRANC,
    PESO,
    POUND,
    YEN
  }

  private enum Country {
    CANADA,
    CHILE,
    JAPAN,
    SWITZERLAND,
    UK
  }

  @AndroidIncompatible // test-suite builders
  public static final class EnumBiMapGenerator implements TestBiMapGenerator<Country, Currency> {
    @SuppressWarnings("unchecked")

GB-Eire GMT GMT+0 GMT-0 GMT0 Greenwich HST Hongkong Iceland Indian/Antananarivo Indian/Chagos Indian/Christmas Indian/Cocos Indian/Comoro Indian/Kerguelen Indian/Mahe Indian/Maldives Indian/Mauritius Indian/Mayotte Indian/Reunion Iran Israel Jamaica Japan Kwajalein Libya MET MST MST7MDT Mexico/BajaNorte Mexico/BajaSur Mexico/General NZ NZ-CHAT Navajo PRC PST8PDT Pacific/Apia Pacific/Auckland Pacific/Bougainville Pacific/Chatham Pacific/Chuuk Pacific/Easter Pacific/Efate Pacific/Enderbury Pacific/Fakaofo...

        // Execute
        OptionalThing<Locale> result = provider.findBusinessLocale(null, mockRequestManager);

        // Verify
        assertTrue(result.isPresent());
        assertEquals(Locale.JAPAN, result.get());
    }

    // Test findBusinessLocale with language only (no country)
    public void test_findBusinessLocale_withLanguageOnly() {
        // Setup mock config

        assertTrue(labelTypeHelper.matchLocale(Locale.ROOT, Locale.ROOT));
        assertTrue(labelTypeHelper.matchLocale(Locale.ENGLISH, Locale.ENGLISH));
        assertTrue(labelTypeHelper.matchLocale(Locale.JAPAN, Locale.JAPANESE));
        assertTrue(labelTypeHelper.matchLocale(Locale.SIMPLIFIED_CHINESE, Locale.CHINESE));
        assertTrue(labelTypeHelper.matchLocale(Locale.TRADITIONAL_CHINESE, Locale.CHINESE));
    }