Examples with DecimalFormatSymbols java.text.DecimalFormatSymbols used on opensource projects

Example 11 with DecimalFormatSymbols

use of java.text.DecimalFormatSymbols in project j2objc by google.

the class DecimalFormatTest method assertDecimalFormatIsLossless.

private static void assertDecimalFormatIsLossless(double d) throws Exception {
    final DecimalFormatSymbols dfs = new DecimalFormatSymbols(Locale.US);
    DecimalFormat format = new DecimalFormat("#0.#", dfs);
    format.setGroupingUsed(false);
    format.setMaximumIntegerDigits(400);
    format.setMaximumFractionDigits(400);
    // Every floating point binary can be represented exactly in decimal if you have enough
    // digits. This shows the value actually being tested.
    String testId = "decimalValue: " + new BigDecimal(d);
    // As a sanity check we try out parseDouble() with the string generated by
    // Double.toString(). Strictly speaking Double.toString() is probably not guaranteed to be
    // lossless, but in reality it probably is, or at least is close enough.
    assertDoubleEqual(testId + " failed parseDouble(toString()) sanity check", d, Double.parseDouble(Double.toString(d)));
    // Format the number: If this is lossy it is a problem. We are trying to check that it
    // doesn't lose any unnecessary precision.
    String result = format.format(d);
    // Here we use Double.parseDouble() which should able to parse a number we know was
    // representable as a double into the original double. If parseDouble() is not implemented
    // correctly the test is invalid.
    double doubleParsed = Double.parseDouble(result);
    assertDoubleEqual(testId + " (format() produced " + result + ")", d, doubleParsed);
    // For completeness we try to parse using the formatter too. If this fails but the format
    // above didn't it may be a problem with parse(), or with format() that we didn't spot.
    assertDoubleEqual(testId + " failed parse(format()) check", d, format.parse(result).doubleValue());
}

Example 12 with DecimalFormatSymbols

use of java.text.DecimalFormatSymbols in project j2objc by google.

the class DecimalFormatSymbolsTest method test_equalsLjava_lang_Object.

/**
     * @tests java.text.DecimalFormatSymbols#equals(java.lang.Object)
     */
public void test_equalsLjava_lang_Object() {
    assertTrue("Equal objects returned false", dfs.equals(dfs.clone()));
    dfs.setDigit('B');
    assertTrue("Un-Equal objects returned true", !dfs.equals(new DecimalFormatSymbols()));
}

Example 13 with DecimalFormatSymbols

use of java.text.DecimalFormatSymbols in project j2objc by google.

the class DecimalFormatSymbolsTest method test_getCurrency.

/**
     * @tests java.text.DecimalFormatSymbols#getCurrency()
     */
public void test_getCurrency() {
    Currency currency = Currency.getInstance("USD");
    assertEquals("Returned incorrect currency", dfsUS.getCurrency(), currency);
    Currency currK = Currency.getInstance("KRW");
    Currency currX = Currency.getInstance("XXX");
    Currency currE = Currency.getInstance("EUR");
    // Currency currF = Currency.getInstance("FRF");
    DecimalFormatSymbols dfs1 = new DecimalFormatSymbols(new Locale("ko", "KR"));
    assertTrue("Test1: Returned incorrect currency", dfs1.getCurrency() == currK);
    assertEquals("Test1: Returned incorrect currencySymbol", "₩", dfs1.getCurrencySymbol());
    assertEquals("Test1: Returned incorrect intlCurrencySymbol", "KRW", dfs1.getInternationalCurrencySymbol());
    dfs1 = new DecimalFormatSymbols(new Locale("", "KR"));
    assertTrue("Test2: Returned incorrect currency", dfs1.getCurrency() == currK);
    assertEquals("Test2: Returned incorrect currencySymbol", "₩", dfs1.getCurrencySymbol());
    assertEquals("Test2: Returned incorrect intlCurrencySymbol", "KRW", dfs1.getInternationalCurrencySymbol());
    dfs1 = new DecimalFormatSymbols(new Locale("ko", ""));
    assertTrue("Test3: Returned incorrect currency", dfs1.getCurrency() == currX);
    assertEquals("Test3: Returned incorrect currencySymbol", "¤", dfs1.getCurrencySymbol());
    assertEquals("Test3: Returned incorrect intlCurrencySymbol", "XXX", dfs1.getInternationalCurrencySymbol());
    dfs1 = new DecimalFormatSymbols(new Locale("fr", "FR"));
    assertTrue("Test4: Returned incorrect currency", dfs1.getCurrency() == currE);
    assertEquals("Test4: Returned incorrect currencySymbol", "€", dfs1.getCurrencySymbol());
    assertEquals("Test4: Returned incorrect intlCurrencySymbol", "EUR", dfs1.getInternationalCurrencySymbol());
// RI fails these tests since it doesn't have the PREEURO variant
// dfs1 = new DecimalFormatSymbols(new Locale("fr", "FR","PREEURO"));
// assertTrue("Test5: Returned incorrect currency", dfs1.getCurrency()
// == currF);
// assertTrue("Test5: Returned incorrect currencySymbol",
// dfs1.getCurrencySymbol().equals("F"));
// assertTrue("Test5: Returned incorrect intlCurrencySymbol",
// dfs1.getInternationalCurrencySymbol().equals("FRF"));
}

Example 14 with DecimalFormatSymbols

use of java.text.DecimalFormatSymbols in project j2objc by google.

the class DecimalFormatSymbolsTest method test_getInstanceLjava_util_Locale.

public void test_getInstanceLjava_util_Locale() {
    try {
        DecimalFormatSymbols.getInstance(null);
        fail();
    } catch (NullPointerException expected) {
    }
    assertEquals(new DecimalFormatSymbols(Locale.GERMANY), DecimalFormatSymbols.getInstance(Locale.GERMANY));
    Locale locale = new Locale("not exist language", "not exist country");
    DecimalFormatSymbols symbols = DecimalFormatSymbols.getInstance(locale);
    assertNotNull(symbols);
}

Example 15 with DecimalFormatSymbols

use of java.text.DecimalFormatSymbols in project j2objc by google.

the class DecimalFormatSymbolsTest method testSerializationSelf.

/**
     * @tests serialization/deserialization compatibility.
     */
public void testSerializationSelf() throws Exception {
    DecimalFormatSymbols symbols = new DecimalFormatSymbols(Locale.ITALIAN);
    SerializationTest.verifySelf(symbols);
}