Check in the pristine copy of ICU 4.6...

icu46/source/test/intltest/nmfmtrt.cpp

+/***********************************************************************
+ * COPYRIGHT: 
+ * Copyright (c) 1997-2010, International Business Machines Corporation
+ * and others. All Rights Reserved.
+ ***********************************************************************/
+
+#include "unicode/utypes.h"
+
+#if !UCONFIG_NO_FORMATTING
+
+#include "nmfmtrt.h"
+
+#include "unicode/dcfmtsym.h"
+#include "unicode/decimfmt.h"
+#include "unicode/locid.h"
+#include "putilimp.h"
+
+#include <float.h>
+#include <stdio.h>    // for sprintf
+#include <stdlib.h>
+ 
+// *****************************************************************************
+// class NumberFormatRoundTripTest
+// *****************************************************************************
+
+UBool NumberFormatRoundTripTest::verbose                  = FALSE;
+UBool NumberFormatRoundTripTest::STRING_COMPARE           = TRUE;
+UBool NumberFormatRoundTripTest::EXACT_NUMERIC_COMPARE    = FALSE;
+UBool NumberFormatRoundTripTest::DEBUG                    = FALSE;
+double NumberFormatRoundTripTest::MAX_ERROR               = 1e-14;
+double NumberFormatRoundTripTest::max_numeric_error       = 0.0;
+double NumberFormatRoundTripTest::min_numeric_error       = 1.0;
+
+#define CASE(id,test) case id: name = #test; if (exec) { logln(#test "---"); logln((UnicodeString)""); test(); } break;
+
+void NumberFormatRoundTripTest::runIndexedTest( int32_t index, UBool exec, const char* &name, char* /*par*/ )
+{
+    // if (exec) logln((UnicodeString)"TestSuite NumberFormatRoundTripTest");
+    switch (index) {
+        CASE(0, start)
+        default: name = ""; break;
+    }
+}
+
+UBool 
+NumberFormatRoundTripTest::failure(UErrorCode status, const char* msg, UBool possibleDataError)
+{
+    if(U_FAILURE(status)) {
+        if (possibleDataError) {
+            dataerrln(UnicodeString("FAIL: ") + msg + " failed, error " + u_errorName(status));
+        } else {
+            errln(UnicodeString("FAIL: ") + msg + " failed, error " + u_errorName(status));
+        }
+        return TRUE;
+    }
+
+    return FALSE;
+}
+
+uint32_t
+NumberFormatRoundTripTest::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 value from -range..+range.
+ */
+double 
+NumberFormatRoundTripTest::randomDouble(double range)
+{
+    double a = randFraction();
+    return (2.0 * range * a) - range;
+}
+
+void 
+NumberFormatRoundTripTest::start()
+{
+// test(NumberFormat.getInstance(new Locale("sr", "", "")));
+
+    UErrorCode status = U_ZERO_ERROR;
+
+    NumberFormat *fmt = NULL;
+
+    logln("Default Locale");
+
+    fmt = NumberFormat::createInstance(status);
+    if (!failure(status, "NumberFormat::createInstance", TRUE)){
+        test(fmt);
+    }
+    delete fmt;
+
+    fmt = NumberFormat::createCurrencyInstance(status);
+    if (!failure(status, "NumberFormat::createCurrencyInstance", TRUE)){
+        test(fmt);
+    }
+    delete fmt;
+
+    fmt = NumberFormat::createPercentInstance(status);
+    if (!failure(status, "NumberFormat::createPercentInstance", TRUE)){
+        test(fmt);
+    }
+    delete fmt;
+
+
+    int32_t locCount = 0;
+    const Locale *loc = NumberFormat::getAvailableLocales(locCount);
+    if(quick) {
+        if(locCount > 5)
+            locCount = 5;
+        logln("Quick mode: only testing first 5 Locales");
+    }
+    for(int i = 0; i < locCount; ++i) {
+        UnicodeString name;
+        logln(loc[i].getDisplayName(name));
+
+        fmt = NumberFormat::createInstance(loc[i], status);
+        failure(status, "NumberFormat::createInstance");
+        test(fmt);
+        delete fmt;
+    
+        fmt = NumberFormat::createCurrencyInstance(loc[i], status);
+        failure(status, "NumberFormat::createCurrencyInstance");
+        test(fmt);
+        delete fmt;
+    
+        fmt = NumberFormat::createPercentInstance(loc[i], status);
+        failure(status, "NumberFormat::createPercentInstance");
+        test(fmt);
+        delete fmt;
+    }
+
+    logln(UnicodeString("Numeric error ") + min_numeric_error + " to " + max_numeric_error);
+}
+
+
+void 
+NumberFormatRoundTripTest::test(NumberFormat *fmt)
+{
+#if IEEE_754 && !defined(OS400)
+    test(fmt, uprv_getNaN());
+    test(fmt, uprv_getInfinity());
+    test(fmt, -uprv_getInfinity());
+#endif
+
+    test(fmt, (int32_t)500);
+    test(fmt, (int32_t)0);
+    test(fmt, (int32_t)-0);
+    test(fmt, 0.0);
+    double negZero = 0.0; negZero /= -1.0;
+    test(fmt, negZero);
+    test(fmt, 9223372036854775808.0);
+    test(fmt, -9223372036854775809.0);
+
+    for(int i = 0; i < 10; ++i) {
+        test(fmt, randomDouble(1));
+        test(fmt, randomDouble(10000));
+        test(fmt, uprv_floor((randomDouble(10000))));
+        test(fmt, randomDouble(1e50));
+        test(fmt, randomDouble(1e-50));
+#if !defined(OS390) && !defined(OS400)
+        test(fmt, randomDouble(1e100));
+#elif IEEE_754
+        test(fmt, randomDouble(1e75));    /*OS390 and OS400*/
+#endif /* OS390 and OS400 */
+        // {sfb} When formatting with a percent instance, numbers very close to
+        // DBL_MAX will fail the round trip.  This is because:
+        // 1) Format the double into a string --> INF% (since 100 * double > DBL_MAX)
+        // 2) Parse the string into a double --> INF
+        // 3) Re-format the double --> INF%
+        // 4) The strings are equal, so that works.
+        // 5) Calculate the proportional error --> INF, so the test will fail
+        // I'll get around this by dividing by the multiplier to make sure
+        // the double will stay in range.
+        //if(fmt->getMultipler() == 1)
+        DecimalFormat *df = dynamic_cast<DecimalFormat *>(fmt);
+        if(df != NULL)
+        {
+#if !defined(OS390) && !defined(OS400)
+            /* DBL_MAX/2 is here because randomDouble does a *2 in the math */
+            test(fmt, randomDouble(DBL_MAX/2.0) / df->getMultiplier());
+#elif IEEE_754
+            test(fmt, randomDouble(1e75) / df->getMultiplier());   
+#else
+            test(fmt, randomDouble(1e65) / df->getMultiplier());   /*OS390*/
+#endif
+        }
+
+#if (defined(_MSC_VER) && _MSC_VER < 1400) || defined(__alpha__) || defined(U_OSF)
+        // These machines and compilers don't fully support denormalized doubles,
+        test(fmt, randomDouble(1e-292));
+        test(fmt, randomDouble(1e-100));
+#elif defined(OS390) || defined(OS400)
+        // i5/OS (OS400) throws exceptions on denormalized numbers
+#   if IEEE_754
+        test(fmt, randomDouble(1e-78));
+        test(fmt, randomDouble(1e-78));
+        // #else we're using something like the old z/OS floating point.
+#   endif
+#else
+        // This is a normal machine that can support IEEE754 denormalized doubles without throwing an error.
+        test(fmt, randomDouble(DBL_MIN)); /* Usually 2.2250738585072014e-308 */
+        test(fmt, randomDouble(1e-100));
+#endif
+    }
+}
+
+void 
+NumberFormatRoundTripTest::test(NumberFormat *fmt, double value)
+{
+    test(fmt, Formattable(value));
+}
+
+void 
+NumberFormatRoundTripTest::test(NumberFormat *fmt, int32_t value)
+{
+    test(fmt, Formattable(value));
+}
+
+void 
+NumberFormatRoundTripTest::test(NumberFormat *fmt, const Formattable& value)
+{
+    fmt->setMaximumFractionDigits(999);
+    DecimalFormat *df = dynamic_cast<DecimalFormat *>(fmt);
+    if(df != NULL) {
+        df->setRoundingIncrement(0.0);
+    }
+    UErrorCode status = U_ZERO_ERROR;
+    UnicodeString s, s2, temp;
+    if(isDouble(value))
+        s = fmt->format(value.getDouble(), s);
+    else
+        s = fmt->format(value.getLong(), s);
+
+    Formattable n;
+    UBool show = verbose;
+    if(DEBUG)
+        logln(/*value.getString(temp) +*/ " F> " + escape(s));
+
+    fmt->parse(s, n, status);
+    failure(status, "fmt->parse");
+    if(DEBUG) 
+        logln(escape(s) + " P> " /*+ n.getString(temp)*/);
+
+    if(isDouble(n))
+        s2 = fmt->format(n.getDouble(), s2);
+    else
+        s2 = fmt->format(n.getLong(), s2);
+    
+    if(DEBUG) 
+        logln(/*n.getString(temp) +*/ " F> " + escape(s2));
+
+    if(STRING_COMPARE) {
+        if (s != s2) {
+            errln("*** STRING ERROR \"" + escape(s) + "\" != \"" + escape(s2) + "\"");
+            show = TRUE;
+        }
+    }
+
+    if(EXACT_NUMERIC_COMPARE) {
+        if(value != n) {
+            errln("*** NUMERIC ERROR");
+            show = TRUE;
+        }
+    }
+    else {
+        // Compute proportional error
+        double error = proportionalError(value, n);
+
+        if(error > MAX_ERROR) {
+            errln(UnicodeString("*** NUMERIC ERROR ") + error);
+            show = TRUE;
+        }
+
+        if (error > max_numeric_error) 
+            max_numeric_error = error;
+        if (error < min_numeric_error) 
+            min_numeric_error = error;
+    }
+
+    if (show) {
+        errln(/*value.getString(temp) +*/ typeOf(value, temp) + " F> " +
+            escape(s) + " P> " + (n.getType() == Formattable::kDouble ? n.getDouble() : (double)n.getLong())
+            /*n.getString(temp) */ + typeOf(n, temp) + " F> " +
+            escape(s2));
+    }
+}
+
+double 
+NumberFormatRoundTripTest::proportionalError(const Formattable& a, const Formattable& b)
+{
+    double aa,bb;
+    
+    if(isDouble(a))
+        aa = a.getDouble();
+    else
+        aa = a.getLong();
+
+    if(isDouble(b))
+        bb = b.getDouble();
+    else
+        bb = b.getLong();
+
+    double error = aa - bb;
+    if(aa != 0 && bb != 0) 
+        error /= aa;
+    
+    return uprv_fabs(error);
+}
+
+UnicodeString& 
+NumberFormatRoundTripTest::typeOf(const Formattable& n, UnicodeString& result)
+{
+    if(n.getType() == Formattable::kLong) {
+        result = UnicodeString(" Long");
+    }
+    else if(n.getType() == Formattable::kDouble) {
+        result = UnicodeString(" Double");
+    }
+    else if(n.getType() == Formattable::kString) {
+        result = UnicodeString(" UnicodeString");
+        UnicodeString temp;
+    }
+
+    return result;
+}
+
+
+UnicodeString& 
+NumberFormatRoundTripTest::escape(UnicodeString& s)
+{
+    UnicodeString copy(s);
+    s.remove();
+    for(int i = 0; i < copy.length(); ++i) {
+        UChar c = copy[i];
+        if(c < 0x00FF) 
+            s += c;
+        else {
+            s += "+U";
+            char temp[16];
+            sprintf(temp, "%4X", c);        // might not work
+            s += temp;
+        }
+    }
+    return s;
+}
+
+#endif /* #if !UCONFIG_NO_FORMATTING */