/********************************************************************
 * COPYRIGHT: 
 * Copyright (c) 1997-2001, International Business Machines Corporation and
 * others. All Rights Reserved.
 ********************************************************************/

#ifndef _NUMBERFORMATROUNDTRIPTEST_
#define _NUMBERFORMATROUNDTRIPTEST_
 
#include <stdlib.h>
#include "unicode/numfmt.h"
#include "unicode/fmtable.h"
#include "intltest.h"

/** 
 * Performs round-trip tests for NumberFormat
 **/
class NumberFormatRoundTripTest : public IntlTest {    
    
    // IntlTest override
    void runIndexedTest( int32_t index, UBool exec, const char* &name, char* par );
public:

    static UBool verbose;
    static UBool STRING_COMPARE;
    static UBool EXACT_NUMERIC_COMPARE;
    static UBool DEBUG;
    static double MAX_ERROR;
    static double max_numeric_error;
    static double min_numeric_error;


    void start(void);

    void test(NumberFormat *fmt);
    void test(NumberFormat *fmt, double value);
    void test(NumberFormat *fmt, int32_t value);
    void test(NumberFormat *fmt, const Formattable& value);

    static double randomDouble(double range);
    static double proportionalError(const Formattable& a, const Formattable& b);
    static UnicodeString& typeOf(const Formattable& n, UnicodeString& result);
    static UnicodeString& escape(UnicodeString& s);

    static inline UBool
    isDouble(const Formattable& n)
    { return (n.getType() == Formattable::kDouble); }

    static inline UBool
    isLong(const Formattable& n)
    { return (n.getType() == Formattable::kLong); }

    /*
     * Return a random uint32_t
     **/
    static uint32_t randLong()
    {
        // Assume 8-bit (or larger) rand values.  Also assume
        // that the system rand() function is very poor, which it always is.
        uint32_t d;
        uint32_t i;
        char* poke = (char*)&d;
        for (i=0; i < sizeof(uint32_t); ++i)
        {
            poke[i] = (char)(rand() & 0xFF);
        }
        return d;
    }

    /**
     * Return a random double 0 <= x < 1.0
     **/
    static double randFraction()
    {
        return (double)randLong() / (double)0xFFFFFFFF;
    }

protected:
    UBool failure(UErrorCode status, const char* msg);

};
 
#endif // _NUMBERFORMATROUNDTRIPTEST_
//eof