// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/********************************************************************
 * COPYRIGHT:
 * Copyright (c) 1997-2015, International Business Machines Corporation and
 * others. All Rights Reserved.
 ********************************************************************/

#include "unicode/utypes.h"

#if !UCONFIG_NO_FORMATTING

#include "dcfmapts.h"

#include "unicode/currpinf.h"
#include "unicode/dcfmtsym.h"
#include "unicode/decimfmt.h"
#include "unicode/fmtable.h"
#include "unicode/localpointer.h"
#include "unicode/parseerr.h"
#include "unicode/stringpiece.h"

#include "putilimp.h"
#include "plurrule_impl.h"
#include "number_decimalquantity.h"

#include <stdio.h>

// This is an API test, not a unit test.  It doesn't test very many cases, and doesn't
// try to test the full functionality.  It just calls each function in the class and
// verifies that it works on a basic level.

void IntlTestDecimalFormatAPI::runIndexedTest( int32_t index, UBool exec, const char* &name, char* /*par*/ )
{
    if (exec) logln((UnicodeString)"TestSuite DecimalFormatAPI");
    switch (index) {
        case 0: name = "DecimalFormat API test";
                if (exec) {
                    logln((UnicodeString)"DecimalFormat API test---"); logln((UnicodeString)"");
                    UErrorCode status = U_ZERO_ERROR;
                    Locale saveLocale;
                    Locale::setDefault(Locale::getEnglish(), status);
                    if(U_FAILURE(status)) {
                        errln((UnicodeString)"ERROR: Could not set default locale, test may not give correct results");
                    }
                    testAPI(/*par*/);
                    Locale::setDefault(saveLocale, status);
                }
                break;
        case 1: name = "Rounding test";
            if(exec) {
               logln((UnicodeString)"DecimalFormat Rounding test---");
               testRounding(/*par*/);
            }
            break;
        case 2: name = "Test6354";
            if(exec) {
               logln((UnicodeString)"DecimalFormat Rounding Increment test---");
               testRoundingInc(/*par*/);
            }
            break;
        case 3: name = "TestCurrencyPluralInfo";
            if(exec) {
               logln((UnicodeString)"CurrencyPluralInfo API test---");
               TestCurrencyPluralInfo();
            }
            break;
        case 4: name = "TestScale";
            if(exec) {
               logln((UnicodeString)"Scale test---");
               TestScale();
            }
            break;
         case 5: name = "TestFixedDecimal";
            if(exec) {
               logln((UnicodeString)"TestFixedDecimal ---");
               TestFixedDecimal();
            }
            break;
         case 6: name = "TestBadFastpath";
            if(exec) {
               logln((UnicodeString)"TestBadFastpath ---");
               TestBadFastpath();
            }
            break;
         case 7: name = "TestRequiredDecimalPoint";
            if(exec) {
               logln((UnicodeString)"TestRequiredDecimalPoint ---");
               TestRequiredDecimalPoint();
            }
            break;
         case 8: name = "testErrorCode";
            if(exec) {
               logln((UnicodeString)"testErrorCode ---");
               testErrorCode();
            }
            break;
         case 9: name = "testInvalidObject";
            if(exec) {
                logln((UnicodeString) "testInvalidObject ---");
                testInvalidObject();
            }
            break;
       default: name = ""; break;
    }
}

/**
 * This test checks various generic API methods in DecimalFormat to achieve 100%
 * API coverage.
 */
void IntlTestDecimalFormatAPI::testAPI(/*char *par*/)
{
    UErrorCode status = U_ZERO_ERROR;

// ======= Test constructors

    logln((UnicodeString)"Testing DecimalFormat constructors");

    DecimalFormat def(status);
    if(U_FAILURE(status)) {
        errcheckln(status, "ERROR: Could not create DecimalFormat (default) - %s", u_errorName(status));
        return;
    }

    // bug 10864
    status = U_ZERO_ERROR;
    DecimalFormat noGrouping("###0.##", status);
    assertEquals("Grouping size should be 0 for no grouping.", 0, noGrouping.getGroupingSize());
    noGrouping.setGroupingUsed(TRUE);
    assertEquals("Grouping size should still be 0.", 0, noGrouping.getGroupingSize());
    // end bug 10864

    // bug 13442 comment 14
    status = U_ZERO_ERROR;
    {
        DecimalFormat df("0", {"en", status}, status);
        UnicodeString result;
        assertEquals("pat 0: ", 0, df.getGroupingSize());
        assertEquals("pat 0: ", (UBool) FALSE, (UBool) df.isGroupingUsed());
        df.setGroupingUsed(false);
        assertEquals("pat 0 then disabled: ", 0, df.getGroupingSize());
        assertEquals("pat 0 then disabled: ", u"1111", df.format(1111, result.remove()));
        df.setGroupingUsed(true);
        assertEquals("pat 0 then enabled: ", 0, df.getGroupingSize());
        assertEquals("pat 0 then enabled: ", u"1111", df.format(1111, result.remove()));
    }
    {
        DecimalFormat df("#,##0", {"en", status}, status);
        UnicodeString result;
        assertEquals("pat #,##0: ", 3, df.getGroupingSize());
        assertEquals("pat #,##0: ", (UBool) TRUE, (UBool) df.isGroupingUsed());
        df.setGroupingUsed(false);
        assertEquals("pat #,##0 then disabled: ", 3, df.getGroupingSize());
        assertEquals("pat #,##0 then disabled: ", u"1111", df.format(1111, result.remove()));
        df.setGroupingUsed(true);
        assertEquals("pat #,##0 then enabled: ", 3, df.getGroupingSize());
        assertEquals("pat #,##0 then enabled: ", u"1,111", df.format(1111, result.remove()));
    }
    // end bug 13442 comment 14

    status = U_ZERO_ERROR;
    const UnicodeString pattern("#,##0.# FF");
    DecimalFormat pat(pattern, status);
    if(U_FAILURE(status)) {
        errln((UnicodeString)"ERROR: Could not create DecimalFormat (pattern)");
        return;
    }

    status = U_ZERO_ERROR;
    DecimalFormatSymbols *symbols = new DecimalFormatSymbols(Locale::getFrench(), status);
    if(U_FAILURE(status)) {
        errln((UnicodeString)"ERROR: Could not create DecimalFormatSymbols (French)");
        return;
    }

    status = U_ZERO_ERROR;
    DecimalFormat cust1(pattern, symbols, status);
    if(U_FAILURE(status)) {
        errln((UnicodeString)"ERROR: Could not create DecimalFormat (pattern, symbols*)");
    }

    status = U_ZERO_ERROR;
    DecimalFormat cust2(pattern, *symbols, status);
    if(U_FAILURE(status)) {
        errln((UnicodeString)"ERROR: Could not create DecimalFormat (pattern, symbols)");
    }

    DecimalFormat copy(pat);

// ======= Test clone(), assignment, and equality

    logln((UnicodeString)"Testing clone(), assignment and equality operators");

    if( ! (copy == pat) || copy != pat) {
        errln((UnicodeString)"ERROR: Copy constructor or == failed");
    }

    copy = cust1;
    if(copy != cust1) {
        errln((UnicodeString)"ERROR: Assignment (or !=) failed");
    }

    Format *clone = def.clone();
    if( ! (*clone == def) ) {
        errln((UnicodeString)"ERROR: Clone() failed");
    }
    delete clone;

// ======= Test various format() methods

    logln((UnicodeString)"Testing various format() methods");

    double d = -10456.0037;
    int32_t l = 100000000;
    Formattable fD(d);
    Formattable fL(l);

    UnicodeString res1, res2, res3, res4;
    FieldPosition pos1(FieldPosition::DONT_CARE), pos2(FieldPosition::DONT_CARE), pos3(FieldPosition::DONT_CARE), pos4(FieldPosition::DONT_CARE);

    res1 = def.format(d, res1, pos1);
    logln( (UnicodeString) "" + (int32_t) d + " formatted to " + res1);

    res2 = pat.format(l, res2, pos2);
    logln((UnicodeString) "" + (int32_t) l + " formatted to " + res2);

    status = U_ZERO_ERROR;
    res3 = cust1.format(fD, res3, pos3, status);
    if(U_FAILURE(status)) {
        errln((UnicodeString)"ERROR: format(Formattable [double]) failed");
    }
    logln((UnicodeString) "" + (int32_t) fD.getDouble() + " formatted to " + res3);

    status = U_ZERO_ERROR;
    res4 = cust2.format(fL, res4, pos4, status);
    if(U_FAILURE(status)) {
        errln((UnicodeString)"ERROR: format(Formattable [long]) failed");
    }
    logln((UnicodeString) "" + fL.getLong() + " formatted to " + res4);

// ======= Test parse()

    logln((UnicodeString)"Testing parse()");

    UnicodeString text("-10,456.0037");
    Formattable result1, result2;
    ParsePosition pos(0);
    UnicodeString patt("#,##0.#");
    status = U_ZERO_ERROR;
    pat.applyPattern(patt, status);
    if(U_FAILURE(status)) {
        errln((UnicodeString)"ERROR: applyPattern() failed");
    }
    pat.parse(text, result1, pos);
    if(result1.getType() != Formattable::kDouble && result1.getDouble() != d) {
        errln((UnicodeString)"ERROR: Roundtrip failed (via parse()) for " + text);
    }
    logln(text + " parsed into " + (int32_t) result1.getDouble());

    status = U_ZERO_ERROR;
    pat.parse(text, result2, status);
    if(U_FAILURE(status)) {
        errln((UnicodeString)"ERROR: parse() failed");
    }
    if(result2.getType() != Formattable::kDouble && result2.getDouble() != d) {
        errln((UnicodeString)"ERROR: Roundtrip failed (via parse()) for " + text);
    }
    logln(text + " parsed into " + (int32_t) result2.getDouble());

// ======= Test getters and setters

    logln((UnicodeString)"Testing getters and setters");

    const DecimalFormatSymbols *syms = pat.getDecimalFormatSymbols();
    DecimalFormatSymbols *newSyms = new DecimalFormatSymbols(*syms);
    def.setDecimalFormatSymbols(*newSyms);
    def.adoptDecimalFormatSymbols(newSyms); // don't use newSyms after this
    if( *(pat.getDecimalFormatSymbols()) != *(def.getDecimalFormatSymbols())) {
        errln((UnicodeString)"ERROR: adopt or set DecimalFormatSymbols() failed");
    }

    UnicodeString posPrefix;
    pat.setPositivePrefix("+");
    posPrefix = pat.getPositivePrefix(posPrefix);
    logln((UnicodeString)"Positive prefix (should be +): " + posPrefix);
    if(posPrefix != "+") {
        errln((UnicodeString)"ERROR: setPositivePrefix() failed");
    }

    UnicodeString negPrefix;
    pat.setNegativePrefix("-");
    negPrefix = pat.getNegativePrefix(negPrefix);
    logln((UnicodeString)"Negative prefix (should be -): " + negPrefix);
    if(negPrefix != "-") {
        errln((UnicodeString)"ERROR: setNegativePrefix() failed");
    }

    UnicodeString posSuffix;
    pat.setPositiveSuffix("_");
    posSuffix = pat.getPositiveSuffix(posSuffix);
    logln((UnicodeString)"Positive suffix (should be _): " + posSuffix);
    if(posSuffix != "_") {
        errln((UnicodeString)"ERROR: setPositiveSuffix() failed");
    }

    UnicodeString negSuffix;
    pat.setNegativeSuffix("~");
    negSuffix = pat.getNegativeSuffix(negSuffix);
    logln((UnicodeString)"Negative suffix (should be ~): " + negSuffix);
    if(negSuffix != "~") {
        errln((UnicodeString)"ERROR: setNegativeSuffix() failed");
    }

    int32_t multiplier = 0;
    pat.setMultiplier(8);
    multiplier = pat.getMultiplier();
    logln((UnicodeString)"Multiplier (should be 8): " + multiplier);
    if(multiplier != 8) {
        errln((UnicodeString)"ERROR: setMultiplier() failed");
    }

    int32_t groupingSize = 0;
    pat.setGroupingSize(2);
    groupingSize = pat.getGroupingSize();
    logln((UnicodeString)"Grouping size (should be 2): " + (int32_t) groupingSize);
    if(groupingSize != 2) {
        errln((UnicodeString)"ERROR: setGroupingSize() failed");
    }

    pat.setDecimalSeparatorAlwaysShown(TRUE);
    UBool tf = pat.isDecimalSeparatorAlwaysShown();
    logln((UnicodeString)"DecimalSeparatorIsAlwaysShown (should be TRUE) is " + (UnicodeString) (tf ? "TRUE" : "FALSE"));
    if(tf != TRUE) {
        errln((UnicodeString)"ERROR: setDecimalSeparatorAlwaysShown() failed");
    }
    // Added by Ken Liu testing set/isExponentSignAlwaysShown
    pat.setExponentSignAlwaysShown(TRUE);
    UBool esas = pat.isExponentSignAlwaysShown();
    logln((UnicodeString)"ExponentSignAlwaysShown (should be TRUE) is " + (UnicodeString) (esas ? "TRUE" : "FALSE"));
    if(esas != TRUE) {
        errln((UnicodeString)"ERROR: ExponentSignAlwaysShown() failed");
    }

    // Added by Ken Liu testing set/isScientificNotation
    pat.setScientificNotation(TRUE);
    UBool sn = pat.isScientificNotation();
    logln((UnicodeString)"isScientificNotation (should be TRUE) is " + (UnicodeString) (sn ? "TRUE" : "FALSE"));
    if(sn != TRUE) {
        errln((UnicodeString)"ERROR: setScientificNotation() failed");
    }

    // Added by Ken Liu testing set/getMinimumExponentDigits
    int8_t MinimumExponentDigits = 0;
    pat.setMinimumExponentDigits(2);
    MinimumExponentDigits = pat.getMinimumExponentDigits();
    logln((UnicodeString)"MinimumExponentDigits (should be 2) is " + (int8_t) MinimumExponentDigits);
    if(MinimumExponentDigits != 2) {
        errln((UnicodeString)"ERROR: setMinimumExponentDigits() failed");
    }

    // Added by Ken Liu testing set/getRoundingIncrement
    double RoundingIncrement = 0.0;
    pat.setRoundingIncrement(2.0);
    RoundingIncrement = pat.getRoundingIncrement();
    logln((UnicodeString)"RoundingIncrement (should be 2.0) is " + (double) RoundingIncrement);
    if(RoundingIncrement != 2.0) {
        errln((UnicodeString)"ERROR: setRoundingIncrement() failed");
    }
    //end of Ken's Adding

    UnicodeString funkyPat;
    funkyPat = pat.toPattern(funkyPat);
    logln((UnicodeString)"Pattern is " + funkyPat);

    UnicodeString locPat;
    locPat = pat.toLocalizedPattern(locPat);
    logln((UnicodeString)"Localized pattern is " + locPat);

// ======= Test applyPattern()

    logln((UnicodeString)"Testing applyPattern()");
    pat = DecimalFormat(status); // reset

    UnicodeString p1("#,##0.0#;(#,##0.0#)");
    logln((UnicodeString)"Applying pattern " + p1);
    status = U_ZERO_ERROR;
    pat.applyPattern(p1, status);
    if(U_FAILURE(status)) {
        errln((UnicodeString)"ERROR: applyPattern() failed with " + (int32_t) status);
    }
    UnicodeString s2;
    s2 = pat.toPattern(s2);
    logln((UnicodeString)"Extracted pattern is " + s2);
    assertEquals("toPattern() result did not match pattern applied", p1, s2);

    if(pat.getSecondaryGroupingSize() != 0) {
        errln("FAIL: Secondary Grouping Size should be 0, not %d\n", pat.getSecondaryGroupingSize());
    }

    if(pat.getGroupingSize() != 3) {
        errln("FAIL: Primary Grouping Size should be 3, not %d\n", pat.getGroupingSize());
    }

    UnicodeString p2("#,##,##0.0# FF;(#,##,##0.0# FF)");
    logln((UnicodeString)"Applying pattern " + p2);
    status = U_ZERO_ERROR;
    pat.applyLocalizedPattern(p2, status);
    if(U_FAILURE(status)) {
        errln((UnicodeString)"ERROR: applyPattern() failed with " + (int32_t) status);
    }
    UnicodeString s3;
    s3 = pat.toLocalizedPattern(s3);
    logln((UnicodeString)"Extracted pattern is " + s3);
    assertEquals("toLocalizedPattern() result did not match pattern applied", p2, s3);

    status = U_ZERO_ERROR;
    UParseError pe;
    pat.applyLocalizedPattern(p2, pe, status);
    if(U_FAILURE(status)) {
        errln((UnicodeString)"ERROR: applyPattern((with ParseError)) failed with " + (int32_t) status);
    }
    UnicodeString s4;
    s4 = pat.toLocalizedPattern(s3);
    logln((UnicodeString)"Extracted pattern is " + s4);
    assertEquals("toLocalizedPattern(with ParseErr) result did not match pattern applied", p2, s4);

    if(pat.getSecondaryGroupingSize() != 2) {
        errln("FAIL: Secondary Grouping Size should be 2, not %d\n", pat.getSecondaryGroupingSize());
    }

    if(pat.getGroupingSize() != 3) {
        errln("FAIL: Primary Grouping Size should be 3, not %d\n", pat.getGroupingSize());
    }

// ======= Test getStaticClassID()

    logln((UnicodeString)"Testing getStaticClassID()");

    status = U_ZERO_ERROR;
    NumberFormat *test = new DecimalFormat(status);
    if(U_FAILURE(status)) {
        errln((UnicodeString)"ERROR: Couldn't create a DecimalFormat");
    }

    if(test->getDynamicClassID() != DecimalFormat::getStaticClassID()) {
        errln((UnicodeString)"ERROR: getDynamicClassID() didn't return the expected value");
    }

    delete test;
}

void IntlTestDecimalFormatAPI::TestCurrencyPluralInfo(){
    UErrorCode status = U_ZERO_ERROR;

    LocalPointer<CurrencyPluralInfo>cpi(new CurrencyPluralInfo(status), status);
    if(U_FAILURE(status)) {
        errln((UnicodeString)"ERROR: CurrencyPluralInfo(UErrorCode) could not be created");
        return;
    }

    CurrencyPluralInfo cpi1 = *cpi;

    if(cpi->getDynamicClassID() != CurrencyPluralInfo::getStaticClassID()){
        errln((UnicodeString)"ERROR: CurrencyPluralInfo::getDynamicClassID() didn't return the expected value");
    }

    cpi->setCurrencyPluralPattern("","",status);
    if(U_FAILURE(status)) {
        errln((UnicodeString)"ERROR: CurrencyPluralInfo::setCurrencyPluralPattern");
    }

    cpi->setLocale(Locale::getCanada(), status);
    if(U_FAILURE(status)) {
        errln((UnicodeString)"ERROR: CurrencyPluralInfo::setLocale");
    }

    cpi->setPluralRules("",status);
    if(U_FAILURE(status)) {
        errln((UnicodeString)"ERROR: CurrencyPluralInfo::setPluralRules");
    }

    LocalPointer<DecimalFormat>df(new DecimalFormat(status));
    if(U_FAILURE(status)) {
        errcheckln(status, "ERROR: Could not create DecimalFormat - %s", u_errorName(status));
        return;
    }

    df->adoptCurrencyPluralInfo(cpi.orphan());

    df->getCurrencyPluralInfo();

    df->setCurrencyPluralInfo(cpi1);

}

void IntlTestDecimalFormatAPI::testRounding(/*char *par*/)
{
    UErrorCode status = U_ZERO_ERROR;
    double Roundingnumber = 2.55;
    double Roundingnumber1 = -2.55;
                      //+2.55 results   -2.55 results
    double result[]={   3.0,            -2.0,    //  kRoundCeiling  0,
                        2.0,            -3.0,    //  kRoundFloor    1,
                        2.0,            -2.0,    //  kRoundDown     2,
                        3.0,            -3.0,    //  kRoundUp       3,
                        3.0,            -3.0,    //  kRoundHalfEven 4,
                        3.0,            -3.0,    //  kRoundHalfDown 5,
                        3.0,            -3.0     //  kRoundHalfUp   6
    };
    DecimalFormat pat(status);
    if(U_FAILURE(status)) {
      errcheckln(status, "ERROR: Could not create DecimalFormat (default) - %s", u_errorName(status));
      return;
    }
    uint16_t mode;
    uint16_t i=0;
    UnicodeString message;
    UnicodeString resultStr;
    for(mode=0;mode < 7;mode++){
        pat.setRoundingMode((DecimalFormat::ERoundingMode)mode);
        if(pat.getRoundingMode() != (DecimalFormat::ERoundingMode)mode){
            errln((UnicodeString)"SetRoundingMode or GetRoundingMode failed for mode=" + mode);
        }


        //for +2.55 with RoundingIncrement=1.0
        pat.setRoundingIncrement(1.0);
        pat.format(Roundingnumber, resultStr);
        message= (UnicodeString)"round(" + (double)Roundingnumber + UnicodeString(",") + mode + UnicodeString(",FALSE) with RoundingIncrement=1.0==>");
        verify(message, resultStr, result[i++]);
        message.remove();
        resultStr.remove();

        //for -2.55 with RoundingIncrement=1.0
        pat.format(Roundingnumber1, resultStr);
        message= (UnicodeString)"round(" + (double)Roundingnumber1 + UnicodeString(",") + mode + UnicodeString(",FALSE) with RoundingIncrement=1.0==>");
        verify(message, resultStr, result[i++]);
        message.remove();
        resultStr.remove();
    }

}
void IntlTestDecimalFormatAPI::verify(const UnicodeString& message, const UnicodeString& got, double expected){
    logln((UnicodeString)message + got + (UnicodeString)" Expected : " + expected);
    UnicodeString expectedStr("");
    expectedStr=expectedStr + expected;
    if(got != expectedStr ) {
            errln((UnicodeString)"ERROR: " + message + got + (UnicodeString)"  Expected : " + expectedStr);
        }
}

void IntlTestDecimalFormatAPI::verifyString(const UnicodeString& message, const UnicodeString& got, UnicodeString& expected){
    logln((UnicodeString)message + got + (UnicodeString)" Expected : " + expected);
    if(got != expected ) {
            errln((UnicodeString)"ERROR: " + message + got + (UnicodeString)"  Expected : " + expected);
        }
}

void IntlTestDecimalFormatAPI::testRoundingInc(/*char *par*/)
{
    UErrorCode status = U_ZERO_ERROR;
    DecimalFormat pat(UnicodeString("#,##0.00"),status);
    if(U_FAILURE(status)) {
      errcheckln(status, "ERROR: Could not create DecimalFormat (default) - %s", u_errorName(status));
      return;
    }

    // get default rounding increment
    double roundingInc = pat.getRoundingIncrement();
    if (roundingInc != 0.0) {
      errln((UnicodeString)"ERROR: Rounding increment not zero");
      return;
    }

    // With rounding now being handled by decNumber, we no longer
    // set a rounding increment to enable non-default mode rounding,
    // checking of which was the original point of this test.

    // set rounding mode with zero increment.  Rounding
    // increment should not be set by this operation
    pat.setRoundingMode((DecimalFormat::ERoundingMode)0);
    roundingInc = pat.getRoundingIncrement();
    if (roundingInc != 0.0) {
      errln((UnicodeString)"ERROR: Rounding increment not zero after setRoundingMode");
      return;
    }
}

void IntlTestDecimalFormatAPI::TestScale()
{
    typedef struct TestData {
        double inputValue;
        int inputScale;
        const char *expectedOutput;
    } TestData;

    static TestData testData[] = {
        { 100.0, 3,  "100,000" },
        { 10034.0, -2, "100.34" },
        { 0.86, -3, "0.0009" },
        { -0.000455, 1, "-0%" },
        { -0.000555, 1, "-1%" },
        { 0.000455, 1, "0%" },
        { 0.000555, 1, "1%" },
    };

    UErrorCode status = U_ZERO_ERROR;
    DecimalFormat pat(status);
    if(U_FAILURE(status)) {
      errcheckln(status, "ERROR: Could not create DecimalFormat (default) - %s", u_errorName(status));
      return;
    }

    UnicodeString message;
    UnicodeString resultStr;
    UnicodeString exp;
    UnicodeString percentPattern("#,##0%");
    pat.setMaximumFractionDigits(4);

    for(int32_t i=0; i < UPRV_LENGTHOF(testData); i++) {
        if ( i > 2 ) {
            pat.applyPattern(percentPattern,status);
        }
        // Test both the attribute and the setter
        if (i % 2 == 0) {
            pat.setAttribute(UNUM_SCALE, testData[i].inputScale,status);
            assertEquals("", testData[i].inputScale, pat.getMultiplierScale());
        } else {
            pat.setMultiplierScale(testData[i].inputScale);
            assertEquals("", testData[i].inputScale, pat.getAttribute(UNUM_SCALE, status));
        }
        pat.format(testData[i].inputValue, resultStr);
        message = UnicodeString("Unexpected output for ") + testData[i].inputValue + UnicodeString(" and scale ") +
                  testData[i].inputScale + UnicodeString(". Got: ");
        exp = testData[i].expectedOutput;
        verifyString(message, resultStr, exp);
        message.remove();
        resultStr.remove();
        exp.remove();
    }
}


#define ASSERT_EQUAL(expect, actual) UPRV_BLOCK_MACRO_BEGIN { \
    /* ICU-20080: Use temporary variables to avoid strange compiler behaviour \
       (with the nice side-effect of avoiding repeated function calls too). */ \
    auto lhs = (expect); \
    auto rhs = (actual); \
    char tmp[200]; \
    sprintf(tmp, "(%g==%g)", (double)lhs, (double)rhs); \
    assertTrue(tmp, (lhs==rhs), FALSE, TRUE, __FILE__, __LINE__); \
} UPRV_BLOCK_MACRO_END

#if defined(_MSC_VER)
// Ignore the noisy warning 4805 (comparisons between int and bool) in the function below as we use the ICU TRUE/FALSE macros
// which are int values, whereas some of the DecimalQuantity methods return C++ bools.
#pragma warning(push)
#pragma warning(disable: 4805)
#endif
void IntlTestDecimalFormatAPI::TestFixedDecimal() {
    UErrorCode status = U_ZERO_ERROR;

    LocalPointer<DecimalFormat> df(new DecimalFormat("###", status), status);
    assertSuccess(WHERE, status);
    if (status == U_MISSING_RESOURCE_ERROR) {
        return;
    }
    number::impl::DecimalQuantity fd;
    df->formatToDecimalQuantity(44, fd, status);
    assertSuccess(WHERE, status);
    ASSERT_EQUAL(44, fd.getPluralOperand(PLURAL_OPERAND_N));
    ASSERT_EQUAL(0, fd.getPluralOperand(PLURAL_OPERAND_V));
    ASSERT_EQUAL(FALSE, fd.isNegative());

    df->formatToDecimalQuantity(-44, fd, status);
    assertSuccess(WHERE, status);
    ASSERT_EQUAL(44, fd.getPluralOperand(PLURAL_OPERAND_N));
    ASSERT_EQUAL(0, fd.getPluralOperand(PLURAL_OPERAND_V));
    ASSERT_EQUAL(TRUE, fd.isNegative());

    df.adoptInsteadAndCheckErrorCode(new DecimalFormat("###.00##", status), status);
    assertSuccess(WHERE, status);
    df->formatToDecimalQuantity(123.456, fd, status);
    assertSuccess(WHERE, status);
    ASSERT_EQUAL(3, fd.getPluralOperand(PLURAL_OPERAND_V)); // v
    ASSERT_EQUAL(456, fd.getPluralOperand(PLURAL_OPERAND_F)); // f
    ASSERT_EQUAL(456, fd.getPluralOperand(PLURAL_OPERAND_T)); // t
    ASSERT_EQUAL(123, fd.getPluralOperand(PLURAL_OPERAND_I)); // i
    ASSERT_EQUAL(123.456, fd.getPluralOperand(PLURAL_OPERAND_N)); // n
    ASSERT_EQUAL(FALSE, fd.hasIntegerValue());
    ASSERT_EQUAL(FALSE, fd.isNegative());

    df->formatToDecimalQuantity(-123.456, fd, status);
    assertSuccess(WHERE, status);
    ASSERT_EQUAL(3, fd.getPluralOperand(PLURAL_OPERAND_V)); // v
    ASSERT_EQUAL(456, fd.getPluralOperand(PLURAL_OPERAND_F)); // f
    ASSERT_EQUAL(456, fd.getPluralOperand(PLURAL_OPERAND_T)); // t
    ASSERT_EQUAL(123, fd.getPluralOperand(PLURAL_OPERAND_I)); // i
    ASSERT_EQUAL(123.456, fd.getPluralOperand(PLURAL_OPERAND_N)); // n
    ASSERT_EQUAL(FALSE, fd.hasIntegerValue());
    ASSERT_EQUAL(TRUE, fd.isNegative());

    // test max int digits
    df->setMaximumIntegerDigits(2);
    df->formatToDecimalQuantity(123.456, fd, status);
    assertSuccess(WHERE, status);
    ASSERT_EQUAL(3, fd.getPluralOperand(PLURAL_OPERAND_V)); // v
    ASSERT_EQUAL(456, fd.getPluralOperand(PLURAL_OPERAND_F)); // f
    ASSERT_EQUAL(456, fd.getPluralOperand(PLURAL_OPERAND_T)); // t
    ASSERT_EQUAL(23, fd.getPluralOperand(PLURAL_OPERAND_I)); // i
    ASSERT_EQUAL(23.456, fd.getPluralOperand(PLURAL_OPERAND_N)); // n
    ASSERT_EQUAL(FALSE, fd.hasIntegerValue());
    ASSERT_EQUAL(FALSE, fd.isNegative());

    df->formatToDecimalQuantity(-123.456, fd, status);
    assertSuccess(WHERE, status);
    ASSERT_EQUAL(3, fd.getPluralOperand(PLURAL_OPERAND_V)); // v
    ASSERT_EQUAL(456, fd.getPluralOperand(PLURAL_OPERAND_F)); // f
    ASSERT_EQUAL(456, fd.getPluralOperand(PLURAL_OPERAND_T)); // t
    ASSERT_EQUAL(23, fd.getPluralOperand(PLURAL_OPERAND_I)); // i
    ASSERT_EQUAL(23.456, fd.getPluralOperand(PLURAL_OPERAND_N)); // n
    ASSERT_EQUAL(FALSE, fd.hasIntegerValue());
    ASSERT_EQUAL(TRUE, fd.isNegative());

    // test max fraction digits
    df->setMaximumIntegerDigits(2000000000);
    df->setMaximumFractionDigits(2);
    df->formatToDecimalQuantity(123.456, fd, status);
    assertSuccess(WHERE, status);
    ASSERT_EQUAL(2, fd.getPluralOperand(PLURAL_OPERAND_V)); // v
    ASSERT_EQUAL(46, fd.getPluralOperand(PLURAL_OPERAND_F)); // f
    ASSERT_EQUAL(46, fd.getPluralOperand(PLURAL_OPERAND_T)); // t
    ASSERT_EQUAL(123, fd.getPluralOperand(PLURAL_OPERAND_I)); // i
    ASSERT_EQUAL(123.46, fd.getPluralOperand(PLURAL_OPERAND_N)); // n
    ASSERT_EQUAL(FALSE, fd.hasIntegerValue());
    ASSERT_EQUAL(FALSE, fd.isNegative());

    df->formatToDecimalQuantity(-123.456, fd, status);
    assertSuccess(WHERE, status);
    ASSERT_EQUAL(2, fd.getPluralOperand(PLURAL_OPERAND_V)); // v
    ASSERT_EQUAL(46, fd.getPluralOperand(PLURAL_OPERAND_F)); // f
    ASSERT_EQUAL(46, fd.getPluralOperand(PLURAL_OPERAND_T)); // t
    ASSERT_EQUAL(123, fd.getPluralOperand(PLURAL_OPERAND_I)); // i
    ASSERT_EQUAL(123.46, fd.getPluralOperand(PLURAL_OPERAND_N)); // n
    ASSERT_EQUAL(FALSE, fd.hasIntegerValue());
    ASSERT_EQUAL(TRUE, fd.isNegative());

    // test esoteric rounding
    df->setMaximumFractionDigits(6);
    df->setRoundingIncrement(7.3);

    df->formatToDecimalQuantity(30.0, fd, status);
    assertSuccess(WHERE, status);
    ASSERT_EQUAL(2, fd.getPluralOperand(PLURAL_OPERAND_V)); // v
    ASSERT_EQUAL(20, fd.getPluralOperand(PLURAL_OPERAND_F)); // f
    ASSERT_EQUAL(2, fd.getPluralOperand(PLURAL_OPERAND_T)); // t
    ASSERT_EQUAL(29, fd.getPluralOperand(PLURAL_OPERAND_I)); // i
    ASSERT_EQUAL(29.2, fd.getPluralOperand(PLURAL_OPERAND_N)); // n
    ASSERT_EQUAL(FALSE, fd.hasIntegerValue());
    ASSERT_EQUAL(FALSE, fd.isNegative());

    df->formatToDecimalQuantity(-30.0, fd, status);
    assertSuccess(WHERE, status);
    ASSERT_EQUAL(2, fd.getPluralOperand(PLURAL_OPERAND_V)); // v
    ASSERT_EQUAL(20, fd.getPluralOperand(PLURAL_OPERAND_F)); // f
    ASSERT_EQUAL(2, fd.getPluralOperand(PLURAL_OPERAND_T)); // t
    ASSERT_EQUAL(29, fd.getPluralOperand(PLURAL_OPERAND_I)); // i
    ASSERT_EQUAL(29.2, fd.getPluralOperand(PLURAL_OPERAND_N)); // n
    ASSERT_EQUAL(FALSE, fd.hasIntegerValue());
    ASSERT_EQUAL(TRUE, fd.isNegative());

    df.adoptInsteadAndCheckErrorCode(new DecimalFormat("###", status), status);
    assertSuccess(WHERE, status);
    df->formatToDecimalQuantity(123.456, fd, status);
    assertSuccess(WHERE, status);
    ASSERT_EQUAL(0, fd.getPluralOperand(PLURAL_OPERAND_V));
    ASSERT_EQUAL(0, fd.getPluralOperand(PLURAL_OPERAND_F));
    ASSERT_EQUAL(0, fd.getPluralOperand(PLURAL_OPERAND_T));
    ASSERT_EQUAL(123, fd.getPluralOperand(PLURAL_OPERAND_I));
    ASSERT_EQUAL(TRUE, fd.hasIntegerValue());
    ASSERT_EQUAL(FALSE, fd.isNegative());

    df.adoptInsteadAndCheckErrorCode(new DecimalFormat("###.0", status), status);
    assertSuccess(WHERE, status);
    df->formatToDecimalQuantity(123.01, fd, status);
    assertSuccess(WHERE, status);
    ASSERT_EQUAL(1, fd.getPluralOperand(PLURAL_OPERAND_V));
    ASSERT_EQUAL(0, fd.getPluralOperand(PLURAL_OPERAND_F));
    ASSERT_EQUAL(0, fd.getPluralOperand(PLURAL_OPERAND_T));
    ASSERT_EQUAL(123, fd.getPluralOperand(PLURAL_OPERAND_I));
    ASSERT_EQUAL(TRUE, fd.hasIntegerValue());
    ASSERT_EQUAL(FALSE, fd.isNegative());

    df.adoptInsteadAndCheckErrorCode(new DecimalFormat("###.0", status), status);
    assertSuccess(WHERE, status);
    df->formatToDecimalQuantity(123.06, fd, status);
    assertSuccess(WHERE, status);
    ASSERT_EQUAL(1, fd.getPluralOperand(PLURAL_OPERAND_V));
    ASSERT_EQUAL(1, fd.getPluralOperand(PLURAL_OPERAND_F));
    ASSERT_EQUAL(1, fd.getPluralOperand(PLURAL_OPERAND_T));
    ASSERT_EQUAL(123, fd.getPluralOperand(PLURAL_OPERAND_I));
    ASSERT_EQUAL(FALSE, fd.hasIntegerValue());
    ASSERT_EQUAL(FALSE, fd.isNegative());

    df.adoptInsteadAndCheckErrorCode(new DecimalFormat("@@@@@", status), status);  // Significant Digits
    assertSuccess(WHERE, status);
    df->formatToDecimalQuantity(123, fd, status);
    assertSuccess(WHERE, status);
    ASSERT_EQUAL(2, fd.getPluralOperand(PLURAL_OPERAND_V));
    ASSERT_EQUAL(0, fd.getPluralOperand(PLURAL_OPERAND_F));
    ASSERT_EQUAL(0, fd.getPluralOperand(PLURAL_OPERAND_T));
    ASSERT_EQUAL(123, fd.getPluralOperand(PLURAL_OPERAND_I));
    ASSERT_EQUAL(TRUE, fd.hasIntegerValue());
    ASSERT_EQUAL(FALSE, fd.isNegative());

    df.adoptInsteadAndCheckErrorCode(new DecimalFormat("@@@@@", status), status);  // Significant Digits
    assertSuccess(WHERE, status);
    df->formatToDecimalQuantity(1.23, fd, status);
    assertSuccess(WHERE, status);
    ASSERT_EQUAL(4, fd.getPluralOperand(PLURAL_OPERAND_V));
    ASSERT_EQUAL(2300, fd.getPluralOperand(PLURAL_OPERAND_F));
    ASSERT_EQUAL(23, fd.getPluralOperand(PLURAL_OPERAND_T));
    ASSERT_EQUAL(1, fd.getPluralOperand(PLURAL_OPERAND_I));
    ASSERT_EQUAL(FALSE, fd.hasIntegerValue());
    ASSERT_EQUAL(FALSE, fd.isNegative());

    df->formatToDecimalQuantity(uprv_getInfinity(), fd, status);
    assertSuccess(WHERE, status);
    ASSERT_EQUAL(TRUE, fd.isNaN() || fd.isInfinite());
    df->formatToDecimalQuantity(0.0, fd, status);
    ASSERT_EQUAL(FALSE, fd.isNaN() || fd.isInfinite());
    df->formatToDecimalQuantity(uprv_getNaN(), fd, status);
    ASSERT_EQUAL(TRUE, fd.isNaN() || fd.isInfinite());
    assertSuccess(WHERE, status);

    // Test Big Decimal input.
    // 22 digits before and after decimal, will exceed the precision of a double
    //    and force DecimalFormat::getFixedDecimal() to work with a digit list.
    df.adoptInsteadAndCheckErrorCode(
        new DecimalFormat("#####################0.00####################", status), status);
    assertSuccess(WHERE, status);
    Formattable fable("12.34", status);
    assertSuccess(WHERE, status);
    df->formatToDecimalQuantity(fable, fd, status);
    assertSuccess(WHERE, status);
    ASSERT_EQUAL(2, fd.getPluralOperand(PLURAL_OPERAND_V));
    ASSERT_EQUAL(34, fd.getPluralOperand(PLURAL_OPERAND_F));
    ASSERT_EQUAL(34, fd.getPluralOperand(PLURAL_OPERAND_T));
    ASSERT_EQUAL(12, fd.getPluralOperand(PLURAL_OPERAND_I));
    ASSERT_EQUAL(FALSE, fd.hasIntegerValue());
    ASSERT_EQUAL(FALSE, fd.isNegative());

    fable.setDecimalNumber("12.3456789012345678900123456789", status);
    assertSuccess(WHERE, status);
    df->formatToDecimalQuantity(fable, fd, status);
    assertSuccess(WHERE, status);
    ASSERT_EQUAL(22, fd.getPluralOperand(PLURAL_OPERAND_V));
    ASSERT_EQUAL(3456789012345678900LL, fd.getPluralOperand(PLURAL_OPERAND_F));
    ASSERT_EQUAL(34567890123456789LL, fd.getPluralOperand(PLURAL_OPERAND_T));
    ASSERT_EQUAL(12, fd.getPluralOperand(PLURAL_OPERAND_I));
    ASSERT_EQUAL(FALSE, fd.hasIntegerValue());
    ASSERT_EQUAL(FALSE, fd.isNegative());

    // On field overflow, Integer part is truncated on the left, fraction part on the right.
    fable.setDecimalNumber("123456789012345678901234567890.123456789012345678901234567890", status);
    assertSuccess(WHERE, status);
    df->formatToDecimalQuantity(fable, fd, status);
    assertSuccess(WHERE, status);
    ASSERT_EQUAL(22, fd.getPluralOperand(PLURAL_OPERAND_V));
    ASSERT_EQUAL(1234567890123456789LL, fd.getPluralOperand(PLURAL_OPERAND_F));
    ASSERT_EQUAL(1234567890123456789LL, fd.getPluralOperand(PLURAL_OPERAND_T));
    ASSERT_EQUAL(345678901234567890LL, fd.getPluralOperand(PLURAL_OPERAND_I));
    ASSERT_EQUAL(FALSE, fd.hasIntegerValue());
    ASSERT_EQUAL(FALSE, fd.isNegative());

    // Digits way to the right of the decimal but within the format's precision aren't truncated
    fable.setDecimalNumber("1.0000000000000000000012", status);
    assertSuccess(WHERE, status);
    df->formatToDecimalQuantity(fable, fd, status);
    assertSuccess(WHERE, status);
    ASSERT_EQUAL(22, fd.getPluralOperand(PLURAL_OPERAND_V));
    ASSERT_EQUAL(12, fd.getPluralOperand(PLURAL_OPERAND_F));
    ASSERT_EQUAL(12, fd.getPluralOperand(PLURAL_OPERAND_T));
    ASSERT_EQUAL(1, fd.getPluralOperand(PLURAL_OPERAND_I));
    ASSERT_EQUAL(FALSE, fd.hasIntegerValue());
    ASSERT_EQUAL(FALSE, fd.isNegative());

    // Digits beyond the precision of the format are rounded away
    fable.setDecimalNumber("1.000000000000000000000012", status);
    assertSuccess(WHERE, status);
    df->formatToDecimalQuantity(fable, fd, status);
    assertSuccess(WHERE, status);
    ASSERT_EQUAL(2, fd.getPluralOperand(PLURAL_OPERAND_V));
    ASSERT_EQUAL(0, fd.getPluralOperand(PLURAL_OPERAND_F));
    ASSERT_EQUAL(0, fd.getPluralOperand(PLURAL_OPERAND_T));
    ASSERT_EQUAL(1, fd.getPluralOperand(PLURAL_OPERAND_I));
    ASSERT_EQUAL(TRUE, fd.hasIntegerValue());
    ASSERT_EQUAL(FALSE, fd.isNegative());

    // Negative numbers come through
    fable.setDecimalNumber("-1.0000000000000000000012", status);
    assertSuccess(WHERE, status);
    df->formatToDecimalQuantity(fable, fd, status);
    assertSuccess(WHERE, status);
    ASSERT_EQUAL(22, fd.getPluralOperand(PLURAL_OPERAND_V));
    ASSERT_EQUAL(12, fd.getPluralOperand(PLURAL_OPERAND_F));
    ASSERT_EQUAL(12, fd.getPluralOperand(PLURAL_OPERAND_T));
    ASSERT_EQUAL(1, fd.getPluralOperand(PLURAL_OPERAND_I));
    ASSERT_EQUAL(FALSE, fd.hasIntegerValue());
    ASSERT_EQUAL(TRUE, fd.isNegative());

    // MinFractionDigits from format larger than from number.
    fable.setDecimalNumber("1000000000000000000000.3", status);
    assertSuccess(WHERE, status);
    df->formatToDecimalQuantity(fable, fd, status);
    assertSuccess(WHERE, status);
    ASSERT_EQUAL(2, fd.getPluralOperand(PLURAL_OPERAND_V));
    ASSERT_EQUAL(30, fd.getPluralOperand(PLURAL_OPERAND_F));
    ASSERT_EQUAL(3, fd.getPluralOperand(PLURAL_OPERAND_T));
    ASSERT_EQUAL(0, fd.getPluralOperand(PLURAL_OPERAND_I));
    ASSERT_EQUAL(FALSE, fd.hasIntegerValue());
    ASSERT_EQUAL(FALSE, fd.isNegative());

    fable.setDecimalNumber("1000000000000000050000.3", status);
    assertSuccess(WHERE, status);
    df->formatToDecimalQuantity(fable, fd, status);
    assertSuccess(WHERE, status);
    ASSERT_EQUAL(2, fd.getPluralOperand(PLURAL_OPERAND_V));
    ASSERT_EQUAL(30, fd.getPluralOperand(PLURAL_OPERAND_F));
    ASSERT_EQUAL(3, fd.getPluralOperand(PLURAL_OPERAND_T));
    ASSERT_EQUAL(50000LL, fd.getPluralOperand(PLURAL_OPERAND_I));
    ASSERT_EQUAL(FALSE, fd.hasIntegerValue());
    ASSERT_EQUAL(FALSE, fd.isNegative());

    // Test some int64_t values that are out of the range of a double
    fable.setInt64(4503599627370496LL);
    assertSuccess(WHERE, status);
    df->formatToDecimalQuantity(fable, fd, status);
    assertSuccess(WHERE, status);
    ASSERT_EQUAL(2, fd.getPluralOperand(PLURAL_OPERAND_V));
    ASSERT_EQUAL(0, fd.getPluralOperand(PLURAL_OPERAND_F));
    ASSERT_EQUAL(0, fd.getPluralOperand(PLURAL_OPERAND_T));
    ASSERT_EQUAL(4503599627370496LL, fd.getPluralOperand(PLURAL_OPERAND_I));
    ASSERT_EQUAL(TRUE, fd.hasIntegerValue());
    ASSERT_EQUAL(FALSE, fd.isNegative());

    fable.setInt64(4503599627370497LL);
    assertSuccess(WHERE, status);
    df->formatToDecimalQuantity(fable, fd, status);
    assertSuccess(WHERE, status);
    ASSERT_EQUAL(2, fd.getPluralOperand(PLURAL_OPERAND_V));
    ASSERT_EQUAL(0, fd.getPluralOperand(PLURAL_OPERAND_F));
    ASSERT_EQUAL(0, fd.getPluralOperand(PLURAL_OPERAND_T));
    ASSERT_EQUAL(4503599627370497LL, fd.getPluralOperand(PLURAL_OPERAND_I));
    ASSERT_EQUAL(TRUE, fd.hasIntegerValue());
    ASSERT_EQUAL(FALSE, fd.isNegative());

    fable.setInt64(9223372036854775807LL);
    assertSuccess(WHERE, status);
    df->formatToDecimalQuantity(fable, fd, status);
    assertSuccess(WHERE, status);
    ASSERT_EQUAL(2, fd.getPluralOperand(PLURAL_OPERAND_V));
    ASSERT_EQUAL(0, fd.getPluralOperand(PLURAL_OPERAND_F));
    ASSERT_EQUAL(0, fd.getPluralOperand(PLURAL_OPERAND_T));
    // note: going through DigitList path to FixedDecimal, which is trimming
    //       int64_t fields to 18 digits. See ticket Ticket #10374
    ASSERT_EQUAL(223372036854775807LL, fd.getPluralOperand(PLURAL_OPERAND_I));
    ASSERT_EQUAL(TRUE, fd.hasIntegerValue());
    ASSERT_EQUAL(FALSE, fd.isNegative());

}
#if defined(_MSC_VER)
// Re-enable 4805 warnings (comparisons between int and bool).
#pragma warning(pop)
#endif

void IntlTestDecimalFormatAPI::TestBadFastpath() {
    UErrorCode status = U_ZERO_ERROR;

    LocalPointer<DecimalFormat> df(new DecimalFormat("###", status), status);
    if (U_FAILURE(status)) {
        dataerrln("Error creating new DecimalFormat - %s", u_errorName(status));
        return;
    }

    UnicodeString fmt;
    fmt.remove();
    assertEquals("Format 1234", "1234", df->format((int32_t)1234, fmt));
    df->setGroupingUsed(FALSE);
    fmt.remove();
    assertEquals("Format 1234", "1234", df->format((int32_t)1234, fmt));
    df->setGroupingUsed(TRUE);
    df->setGroupingSize(3);
    fmt.remove();
    assertEquals("Format 1234 w/ grouping", "1,234", df->format((int32_t)1234, fmt));
}

void IntlTestDecimalFormatAPI::TestRequiredDecimalPoint() {
    UErrorCode status = U_ZERO_ERROR;
    UnicodeString text("99");
    Formattable result1;
    UnicodeString pat1("##.0000");
    UnicodeString pat2("00.0");

    LocalPointer<DecimalFormat> df(new DecimalFormat(pat1, status), status);
    if (U_FAILURE(status)) {
        dataerrln("Error creating new DecimalFormat - %s", u_errorName(status));
        return;
    }

    status = U_ZERO_ERROR;
    df->applyPattern(pat1, status);
    if(U_FAILURE(status)) {
        errln((UnicodeString)"ERROR: applyPattern() failed");
    }
    df->parse(text, result1, status);
    if(U_FAILURE(status)) {
        errln((UnicodeString)"ERROR: parse() failed");
    }
    df->setDecimalPatternMatchRequired(TRUE);
    df->parse(text, result1, status);
    if(U_SUCCESS(status)) {
        errln((UnicodeString)"ERROR: unexpected parse()");
    }


    status = U_ZERO_ERROR;
    df->applyPattern(pat2, status);
    df->setDecimalPatternMatchRequired(FALSE);
    if(U_FAILURE(status)) {
        errln((UnicodeString)"ERROR: applyPattern(2) failed");
    }
    df->parse(text, result1, status);
    if(U_FAILURE(status)) {
        errln((UnicodeString)"ERROR: parse(2) failed - " + u_errorName(status));
    }
    df->setDecimalPatternMatchRequired(TRUE);
    df->parse(text, result1, status);
    if(U_SUCCESS(status)) {
        errln((UnicodeString)"ERROR: unexpected parse(2)");
    }
}

void IntlTestDecimalFormatAPI::testErrorCode() {
    // Try each DecimalFormat constructor with an errorCode set on input,
    // Verify no crashes or leaks, and that the errorCode is not altered.

    UErrorCode status = U_ZERO_ERROR;
    const UnicodeString pattern(u"0.###E0");
    UParseError pe;
    DecimalFormatSymbols symbols(Locale::getUS(), status);
    assertSuccess(WHERE, status);

    {
        status = U_INTERNAL_PROGRAM_ERROR;
        DecimalFormat df(status);
        assertEquals(WHERE, U_INTERNAL_PROGRAM_ERROR, status);
    }
    {
        status = U_INTERNAL_PROGRAM_ERROR;
        DecimalFormat df(pattern, status);
        assertEquals(WHERE, U_INTERNAL_PROGRAM_ERROR, status);
    }
    {
        status = U_INTERNAL_PROGRAM_ERROR;
        DecimalFormat df(pattern, new DecimalFormatSymbols(symbols), status);
        assertEquals(WHERE, U_INTERNAL_PROGRAM_ERROR, status);
    }
    {
        status = U_INTERNAL_PROGRAM_ERROR;
        DecimalFormat df(pattern, new DecimalFormatSymbols(symbols), UNUM_DECIMAL_COMPACT_LONG, status);
        assertEquals(WHERE, U_INTERNAL_PROGRAM_ERROR, status);
    }
    {
        status = U_INTERNAL_PROGRAM_ERROR;
        DecimalFormat df(pattern, new DecimalFormatSymbols(symbols), pe, status);
        assertEquals(WHERE, U_INTERNAL_PROGRAM_ERROR, status);
    }
    {
        status = U_INTERNAL_PROGRAM_ERROR;
        DecimalFormat df(pattern, symbols ,status);
        assertEquals(WHERE, U_INTERNAL_PROGRAM_ERROR, status);
    }

    // Try each DecimalFormat method with an error code parameter, verifying that
    //  an input error is not altered, and that no segmentation faults occur.

    status = U_INTERNAL_PROGRAM_ERROR;
    DecimalFormat dfBogus(status);
    assertEquals(WHERE, U_INTERNAL_PROGRAM_ERROR, status);

    status = U_ZERO_ERROR;
    DecimalFormat dfGood(pattern, new DecimalFormatSymbols(symbols), status);
    assertSuccess(WHERE, status);

    for (DecimalFormat *df: {&dfBogus, &dfGood}) {
        status = U_INTERNAL_PROGRAM_ERROR;
        df->setAttribute(UNUM_PARSE_INT_ONLY, 0, status);
        assertEquals(WHERE, U_INTERNAL_PROGRAM_ERROR, status);

        status = U_INTERNAL_PROGRAM_ERROR;
        df->getAttribute(UNUM_MAX_FRACTION_DIGITS, status);
        assertEquals(WHERE, U_INTERNAL_PROGRAM_ERROR, status);

        status = U_INTERNAL_PROGRAM_ERROR;
        UnicodeString dest;
        FieldPosition fp;
        df->format(1.2, dest, fp, status);
        assertEquals(WHERE, U_INTERNAL_PROGRAM_ERROR, status);

        status = U_INTERNAL_PROGRAM_ERROR;
        df->format(1.2, dest, nullptr, status);
        assertEquals(WHERE, U_INTERNAL_PROGRAM_ERROR, status);

        status = U_INTERNAL_PROGRAM_ERROR;
        df->format((int32_t)666, dest, nullptr, status);
        assertEquals(WHERE, U_INTERNAL_PROGRAM_ERROR, status);

        status = U_INTERNAL_PROGRAM_ERROR;
        df->format((int64_t)666, dest, nullptr, status);
        assertEquals(WHERE, U_INTERNAL_PROGRAM_ERROR, status);

        status = U_INTERNAL_PROGRAM_ERROR;
        df->format(StringPiece("3.1415926535897932384626"), dest, nullptr, status);
        assertEquals(WHERE, U_INTERNAL_PROGRAM_ERROR, status);

        status = U_INTERNAL_PROGRAM_ERROR;
        df->applyPattern(pattern, status);
        assertEquals(WHERE, U_INTERNAL_PROGRAM_ERROR, status);

        status = U_INTERNAL_PROGRAM_ERROR;
        df->applyLocalizedPattern(pattern, pe, status);
        assertEquals(WHERE, U_INTERNAL_PROGRAM_ERROR, status);

        status = U_INTERNAL_PROGRAM_ERROR;
        df->applyLocalizedPattern(pattern, status);
        assertEquals(WHERE, U_INTERNAL_PROGRAM_ERROR, status);

        status = U_INTERNAL_PROGRAM_ERROR;
        df->setCurrency(u"USD", status);
        assertEquals(WHERE, U_INTERNAL_PROGRAM_ERROR, status);

        status = U_INTERNAL_PROGRAM_ERROR;
        df->setCurrencyUsage(UCURR_USAGE_CASH, &status);
        assertEquals(WHERE, U_INTERNAL_PROGRAM_ERROR, status);
    }
}

void IntlTestDecimalFormatAPI::testInvalidObject() {
    {
        UErrorCode status = U_INTERNAL_PROGRAM_ERROR;
        DecimalFormat dfBogus(status);
        assertEquals(WHERE, U_INTERNAL_PROGRAM_ERROR, status);

        status = U_ZERO_ERROR;
        DecimalFormat dfGood(status);
        assertSuccess(WHERE, status);

        // An invalid object should not be equal to a valid object.
        // This also tests that no segmentation fault occurs in the comparison operator due
        // to any dangling/nullptr pointers. (ICU-20381).
        assertTrue(WHERE, dfGood != dfBogus);

        status = U_MEMORY_ALLOCATION_ERROR;
        DecimalFormat dfBogus2(status);
        assertEquals(WHERE, U_MEMORY_ALLOCATION_ERROR, status);

        // Two invalid objects should not be equal.
        // (Also verify that nullptr isn't t dereferenced in the comparison operator.)
        assertTrue(WHERE, dfBogus != dfBogus2);

        // Verify the comparison operator works for two valid objects.
        status = U_ZERO_ERROR;
        DecimalFormat dfGood2(status);
        assertSuccess(WHERE, status);
        assertTrue(WHERE, dfGood == dfGood2);

        // Verify that the assignment operator sets the object to an invalid state, and
        // that no segmentation fault occurs due to any dangling/nullptr pointers.
        status = U_INTERNAL_PROGRAM_ERROR;
        DecimalFormat dfAssignmentBogus = DecimalFormat(status);
        // Verify comparison for the assigned object.
        assertTrue(WHERE, dfAssignmentBogus != dfGood);
        assertTrue(WHERE, dfAssignmentBogus != dfGood2);
        assertTrue(WHERE, dfAssignmentBogus != dfBogus);

        // Verify that cloning our original invalid object gives nullptr.
        auto dfBogusClone = dfBogus.clone();
        assertTrue(WHERE,  dfBogusClone == nullptr);
        // Verify that cloning our assigned invalid object gives nullptr.
        auto dfBogusClone2 = dfAssignmentBogus.clone();
        assertTrue(WHERE, dfBogusClone2 == nullptr);

        // Verify copy constructing from an invalid object is also invalid.
        DecimalFormat dfCopy(dfBogus);
        assertTrue(WHERE, dfCopy != dfGood);
        assertTrue(WHERE, dfCopy != dfGood2);
        assertTrue(WHERE, dfCopy != dfBogus);
        DecimalFormat dfCopyAssign = dfBogus;
        assertTrue(WHERE, dfCopyAssign != dfGood);
        assertTrue(WHERE, dfCopyAssign != dfGood2);
        assertTrue(WHERE, dfCopyAssign != dfBogus);
        auto dfBogusCopyClone1 = dfCopy.clone();
        auto dfBogusCopyClone2 = dfCopyAssign.clone();
        assertTrue(WHERE, dfBogusCopyClone1 == nullptr);
        assertTrue(WHERE, dfBogusCopyClone2 == nullptr);
    }

    {
        // Try each DecimalFormat class method that lacks an error code parameter, verifying
        // we don't crash (segmentation fault) on invalid objects.

        UErrorCode status = U_ZERO_ERROR;
        const UnicodeString pattern(u"0.###E0");
        UParseError pe;
        DecimalFormatSymbols symbols(Locale::getUS(), status);
        assertSuccess(WHERE, status);
        CurrencyPluralInfo currencyPI(status);
        assertSuccess(WHERE, status);

        status = U_INTERNAL_PROGRAM_ERROR;
        DecimalFormat dfBogus1(status);
        assertEquals(WHERE, U_INTERNAL_PROGRAM_ERROR, status);

        status = U_INTERNAL_PROGRAM_ERROR;
        DecimalFormat dfBogus2(pattern, status);
        assertEquals(WHERE, U_INTERNAL_PROGRAM_ERROR, status);

        status = U_INTERNAL_PROGRAM_ERROR;
        DecimalFormat dfBogus3(pattern, new DecimalFormatSymbols(symbols), status);
        assertEquals(WHERE, U_INTERNAL_PROGRAM_ERROR, status);

        status = U_INTERNAL_PROGRAM_ERROR;
        DecimalFormat dfBogus4(pattern, new DecimalFormatSymbols(symbols), UNumberFormatStyle::UNUM_CURRENCY, status);
        assertEquals(WHERE, U_INTERNAL_PROGRAM_ERROR, status);

        status = U_INTERNAL_PROGRAM_ERROR;
        DecimalFormat dfBogus5(pattern, new DecimalFormatSymbols(symbols), pe, status);
        assertEquals(WHERE, U_INTERNAL_PROGRAM_ERROR, status);

        for (DecimalFormat *df : {&dfBogus1, &dfBogus2, &dfBogus3, &dfBogus4, &dfBogus5})
        {
            df->setGroupingUsed(true);

            df->setParseIntegerOnly(false);

            df->setLenient(true);

            auto dfClone = df->clone();
            assertTrue(WHERE, dfClone == nullptr);

            UnicodeString dest;
            FieldPosition fp;
            df->format(1.2, dest, fp);
            df->format(static_cast<int32_t>(1234), dest, fp);
            df->format(static_cast<int64_t>(1234), dest, fp);

            UnicodeString text("-1,234.00");
            Formattable result;
            ParsePosition pos(0);
            df->parse(text, result, pos);

            CurrencyAmount* ca = df->parseCurrency(text, pos);
            assertTrue(WHERE, ca == nullptr);

            const DecimalFormatSymbols* dfs = df->getDecimalFormatSymbols();
            assertTrue(WHERE, dfs == nullptr);

            df->adoptDecimalFormatSymbols(nullptr);

            df->setDecimalFormatSymbols(symbols);

            const CurrencyPluralInfo* cpi = df->getCurrencyPluralInfo();
            assertTrue(WHERE, cpi == nullptr);
            
            df->adoptCurrencyPluralInfo(nullptr);

            df->setCurrencyPluralInfo(currencyPI);

            UnicodeString prefix("-123");
            df->getPositivePrefix(dest);
            df->setPositivePrefix(prefix);
            df->getNegativePrefix(dest);
            df->setNegativePrefix(prefix);
            df->getPositiveSuffix(dest);
            df->setPositiveSuffix(prefix);
            df->getNegativeSuffix(dest);
            df->setNegativeSuffix(prefix);

            df->isSignAlwaysShown();

            df->setSignAlwaysShown(true);

            df->getMultiplier();
            df->setMultiplier(10);
            
            df->getMultiplierScale();
            df->setMultiplierScale(2);

            df->getRoundingIncrement();
            df->setRoundingIncrement(1.2);

            df->getRoundingMode();
            df->setRoundingMode(DecimalFormat::ERoundingMode::kRoundDown);

            df->getFormatWidth();
            df->setFormatWidth(0);

            UnicodeString pad(" ");
            df->getPadCharacterString();
            df->setPadCharacter(pad);

            df->getPadPosition();
            df->setPadPosition(DecimalFormat::EPadPosition::kPadBeforePrefix);

            df->isScientificNotation();
            df->setScientificNotation(false);

            df->getMinimumExponentDigits();
            df->setMinimumExponentDigits(1);

            df->isExponentSignAlwaysShown();
            df->setExponentSignAlwaysShown(true);

            df->getGroupingSize();
            df->setGroupingSize(3);

            df->getSecondaryGroupingSize();
            df->setSecondaryGroupingSize(-1);

            df->getMinimumGroupingDigits();
            df->setMinimumGroupingDigits(-1);

            df->isDecimalSeparatorAlwaysShown();
            df->setDecimalSeparatorAlwaysShown(true);

            df->isDecimalPatternMatchRequired();
            df->setDecimalPatternMatchRequired(false);

            df->isParseNoExponent();
            df->setParseNoExponent(true);

            df->isParseCaseSensitive();
            df->setParseCaseSensitive(false);

            df->isFormatFailIfMoreThanMaxDigits();
            df->setFormatFailIfMoreThanMaxDigits(true);

            df->toPattern(dest);
            df->toLocalizedPattern(dest);

            df->setMaximumIntegerDigits(10);
            df->setMinimumIntegerDigits(0);

            df->setMaximumFractionDigits(2);
            df->setMinimumFractionDigits(0);

            df->getMinimumSignificantDigits();
            df->setMinimumSignificantDigits(0);

            df->getMaximumSignificantDigits();
            df->setMaximumSignificantDigits(5);

            df->areSignificantDigitsUsed();
            df->setSignificantDigitsUsed(true);

            df->setCurrency(u"USD");
            
            df->getCurrencyUsage();

            const number::LocalizedNumberFormatter* lnf = df->toNumberFormatter(status);
            assertEquals("toNumberFormatter should return nullptr",
                (int64_t) nullptr, (int64_t) lnf);

            // Should not crash when chaining to error code enabled methods on the LNF
            lnf->formatInt(1, status);
            lnf->formatDouble(1.0, status);
            lnf->formatDecimal("1", status);
            lnf->toFormat(status);
            lnf->toSkeleton(status);
            lnf->copyErrorTo(status);
        }

    }
}

#endif /* #if !UCONFIG_NO_FORMATTING */