/**
     * @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));
    }

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

    }

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

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

    //    @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