1/***********************************************************************
2 * COPYRIGHT:
3 * Copyright (c) 1997-2010, International Business Machines Corporation
4 * and others. All Rights Reserved.
5 ***********************************************************************/
6
7#include "unicode/utypes.h"
8
9#if !UCONFIG_NO_FORMATTING
10
11#include "nmfmtrt.h"
12
13#include "unicode/dcfmtsym.h"
14#include "unicode/decimfmt.h"
15#include "unicode/locid.h"
16#include "putilimp.h"
17
18#include <float.h>
19#include <stdio.h>    // for sprintf
20#include <stdlib.h>
21
22// *****************************************************************************
23// class NumberFormatRoundTripTest
24// *****************************************************************************
25
26UBool NumberFormatRoundTripTest::verbose                  = FALSE;
27UBool NumberFormatRoundTripTest::STRING_COMPARE           = TRUE;
28UBool NumberFormatRoundTripTest::EXACT_NUMERIC_COMPARE    = FALSE;
29UBool NumberFormatRoundTripTest::DEBUG                    = FALSE;
30double NumberFormatRoundTripTest::MAX_ERROR               = 1e-14;
31double NumberFormatRoundTripTest::max_numeric_error       = 0.0;
32double NumberFormatRoundTripTest::min_numeric_error       = 1.0;
33
34#define CASE(id,test) case id: name = #test; if (exec) { logln(#test "---"); logln((UnicodeString)""); test(); } break;
35
36void NumberFormatRoundTripTest::runIndexedTest( int32_t index, UBool exec, const char* &name, char* /*par*/ )
37{
38    // if (exec) logln((UnicodeString)"TestSuite NumberFormatRoundTripTest");
39    switch (index) {
40        CASE(0, start)
41        default: name = ""; break;
42    }
43}
44
45UBool
46NumberFormatRoundTripTest::failure(UErrorCode status, const char* msg, UBool possibleDataError)
47{
48    if(U_FAILURE(status)) {
49        if (possibleDataError) {
50            dataerrln(UnicodeString("FAIL: ") + msg + " failed, error " + u_errorName(status));
51        } else {
52            errln(UnicodeString("FAIL: ") + msg + " failed, error " + u_errorName(status));
53        }
54        return TRUE;
55    }
56
57    return FALSE;
58}
59
60uint32_t
61NumberFormatRoundTripTest::randLong()
62{
63    // Assume 8-bit (or larger) rand values.  Also assume
64    // that the system rand() function is very poor, which it always is.
65    uint32_t d;
66    uint32_t i;
67    char* poke = (char*)&d;
68    for (i=0; i < sizeof(uint32_t); ++i)
69    {
70        poke[i] = (char)(rand() & 0xFF);
71    }
72    return d;
73}
74
75/**
76 * Return a random value from -range..+range.
77 */
78double
79NumberFormatRoundTripTest::randomDouble(double range)
80{
81    double a = randFraction();
82    return (2.0 * range * a) - range;
83}
84
85void
86NumberFormatRoundTripTest::start()
87{
88// test(NumberFormat.getInstance(new Locale("sr", "", "")));
89
90    UErrorCode status = U_ZERO_ERROR;
91
92    NumberFormat *fmt = NULL;
93
94    logln("Default Locale");
95
96    fmt = NumberFormat::createInstance(status);
97    if (!failure(status, "NumberFormat::createInstance", TRUE)){
98        test(fmt);
99    }
100    delete fmt;
101
102    fmt = NumberFormat::createCurrencyInstance(status);
103    if (!failure(status, "NumberFormat::createCurrencyInstance", TRUE)){
104        test(fmt);
105    }
106    delete fmt;
107
108    fmt = NumberFormat::createPercentInstance(status);
109    if (!failure(status, "NumberFormat::createPercentInstance", TRUE)){
110        test(fmt);
111    }
112    delete fmt;
113
114
115    int32_t locCount = 0;
116    const Locale *loc = NumberFormat::getAvailableLocales(locCount);
117    if(quick) {
118        if(locCount > 5)
119            locCount = 5;
120        logln("Quick mode: only testing first 5 Locales");
121    }
122    for(int i = 0; i < locCount; ++i) {
123        UnicodeString name;
124        logln(loc[i].getDisplayName(name));
125
126        fmt = NumberFormat::createInstance(loc[i], status);
127        failure(status, "NumberFormat::createInstance");
128        test(fmt);
129        delete fmt;
130
131        fmt = NumberFormat::createCurrencyInstance(loc[i], status);
132        failure(status, "NumberFormat::createCurrencyInstance");
133        test(fmt);
134        delete fmt;
135
136        fmt = NumberFormat::createPercentInstance(loc[i], status);
137        failure(status, "NumberFormat::createPercentInstance");
138        test(fmt);
139        delete fmt;
140    }
141
142    logln(UnicodeString("Numeric error ") + min_numeric_error + " to " + max_numeric_error);
143}
144
145
146void
147NumberFormatRoundTripTest::test(NumberFormat *fmt)
148{
149#if IEEE_754 && !defined(OS400)
150    test(fmt, uprv_getNaN());
151    test(fmt, uprv_getInfinity());
152    test(fmt, -uprv_getInfinity());
153#endif
154
155    test(fmt, (int32_t)500);
156    test(fmt, (int32_t)0);
157    test(fmt, (int32_t)-0);
158    test(fmt, 0.0);
159    double negZero = 0.0; negZero /= -1.0;
160    test(fmt, negZero);
161    test(fmt, 9223372036854775808.0);
162    test(fmt, -9223372036854775809.0);
163
164    for(int i = 0; i < 10; ++i) {
165        test(fmt, randomDouble(1));
166        test(fmt, randomDouble(10000));
167        test(fmt, uprv_floor((randomDouble(10000))));
168        test(fmt, randomDouble(1e50));
169        test(fmt, randomDouble(1e-50));
170#if !defined(OS390) && !defined(OS400)
171        test(fmt, randomDouble(1e100));
172#elif IEEE_754
173        test(fmt, randomDouble(1e75));    /*OS390 and OS400*/
174#endif /* OS390 and OS400 */
175        // {sfb} When formatting with a percent instance, numbers very close to
176        // DBL_MAX will fail the round trip.  This is because:
177        // 1) Format the double into a string --> INF% (since 100 * double > DBL_MAX)
178        // 2) Parse the string into a double --> INF
179        // 3) Re-format the double --> INF%
180        // 4) The strings are equal, so that works.
181        // 5) Calculate the proportional error --> INF, so the test will fail
182        // I'll get around this by dividing by the multiplier to make sure
183        // the double will stay in range.
184        //if(fmt->getMultipler() == 1)
185        DecimalFormat *df = dynamic_cast<DecimalFormat *>(fmt);
186        if(df != NULL)
187        {
188#if !defined(OS390) && !defined(OS400)
189            /* DBL_MAX/2 is here because randomDouble does a *2 in the math */
190            test(fmt, randomDouble(DBL_MAX/2.0) / df->getMultiplier());
191#elif IEEE_754
192            test(fmt, randomDouble(1e75) / df->getMultiplier());
193#else
194            test(fmt, randomDouble(1e65) / df->getMultiplier());   /*OS390*/
195#endif
196        }
197
198#if (defined(_MSC_VER) && _MSC_VER < 1400) || defined(__alpha__) || defined(U_OSF)
199        // These machines and compilers don't fully support denormalized doubles,
200        test(fmt, randomDouble(1e-292));
201        test(fmt, randomDouble(1e-100));
202#elif defined(OS390) || defined(OS400)
203        // i5/OS (OS400) throws exceptions on denormalized numbers
204#   if IEEE_754
205        test(fmt, randomDouble(1e-78));
206        test(fmt, randomDouble(1e-78));
207        // #else we're using something like the old z/OS floating point.
208#   endif
209#else
210        // This is a normal machine that can support IEEE754 denormalized doubles without throwing an error.
211        test(fmt, randomDouble(DBL_MIN)); /* Usually 2.2250738585072014e-308 */
212        test(fmt, randomDouble(1e-100));
213#endif
214    }
215}
216
217void
218NumberFormatRoundTripTest::test(NumberFormat *fmt, double value)
219{
220    test(fmt, Formattable(value));
221}
222
223void
224NumberFormatRoundTripTest::test(NumberFormat *fmt, int32_t value)
225{
226    test(fmt, Formattable(value));
227}
228
229void
230NumberFormatRoundTripTest::test(NumberFormat *fmt, const Formattable& value)
231{
232    fmt->setMaximumFractionDigits(999);
233    DecimalFormat *df = dynamic_cast<DecimalFormat *>(fmt);
234    if(df != NULL) {
235        df->setRoundingIncrement(0.0);
236    }
237    UErrorCode status = U_ZERO_ERROR;
238    UnicodeString s, s2, temp;
239    if(isDouble(value))
240        s = fmt->format(value.getDouble(), s);
241    else
242        s = fmt->format(value.getLong(), s);
243
244    Formattable n;
245    UBool show = verbose;
246    if(DEBUG)
247        logln(/*value.getString(temp) +*/ " F> " + escape(s));
248
249    fmt->parse(s, n, status);
250    failure(status, "fmt->parse");
251    if(DEBUG)
252        logln(escape(s) + " P> " /*+ n.getString(temp)*/);
253
254    if(isDouble(n))
255        s2 = fmt->format(n.getDouble(), s2);
256    else
257        s2 = fmt->format(n.getLong(), s2);
258
259    if(DEBUG)
260        logln(/*n.getString(temp) +*/ " F> " + escape(s2));
261
262    if(STRING_COMPARE) {
263        if (s != s2) {
264            errln("*** STRING ERROR \"" + escape(s) + "\" != \"" + escape(s2) + "\"");
265            show = TRUE;
266        }
267    }
268
269    if(EXACT_NUMERIC_COMPARE) {
270        if(value != n) {
271            errln("*** NUMERIC ERROR");
272            show = TRUE;
273        }
274    }
275    else {
276        // Compute proportional error
277        double error = proportionalError(value, n);
278
279        if(error > MAX_ERROR) {
280            errln(UnicodeString("*** NUMERIC ERROR ") + error);
281            show = TRUE;
282        }
283
284        if (error > max_numeric_error)
285            max_numeric_error = error;
286        if (error < min_numeric_error)
287            min_numeric_error = error;
288    }
289
290    if (show) {
291        errln(/*value.getString(temp) +*/ typeOf(value, temp) + " F> " +
292            escape(s) + " P> " + (n.getType() == Formattable::kDouble ? n.getDouble() : (double)n.getLong())
293            /*n.getString(temp) */ + typeOf(n, temp) + " F> " +
294            escape(s2));
295    }
296}
297
298double
299NumberFormatRoundTripTest::proportionalError(const Formattable& a, const Formattable& b)
300{
301    double aa,bb;
302
303    if(isDouble(a))
304        aa = a.getDouble();
305    else
306        aa = a.getLong();
307
308    if(isDouble(b))
309        bb = b.getDouble();
310    else
311        bb = b.getLong();
312
313    double error = aa - bb;
314    if(aa != 0 && bb != 0)
315        error /= aa;
316
317    return uprv_fabs(error);
318}
319
320UnicodeString&
321NumberFormatRoundTripTest::typeOf(const Formattable& n, UnicodeString& result)
322{
323    if(n.getType() == Formattable::kLong) {
324        result = UnicodeString(" Long");
325    }
326    else if(n.getType() == Formattable::kDouble) {
327        result = UnicodeString(" Double");
328    }
329    else if(n.getType() == Formattable::kString) {
330        result = UnicodeString(" UnicodeString");
331        UnicodeString temp;
332    }
333
334    return result;
335}
336
337
338UnicodeString&
339NumberFormatRoundTripTest::escape(UnicodeString& s)
340{
341    UnicodeString copy(s);
342    s.remove();
343    for(int i = 0; i < copy.length(); ++i) {
344        UChar c = copy[i];
345        if(c < 0x00FF)
346            s += c;
347        else {
348            s += "+U";
349            char temp[16];
350            sprintf(temp, "%4X", c);        // might not work
351            s += temp;
352        }
353    }
354    return s;
355}
356
357#endif /* #if !UCONFIG_NO_FORMATTING */
358