1 /***********************************************************************
2  * COPYRIGHT:
3  * Copyright (c) 1997-2011, 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 
26 UBool NumberFormatRoundTripTest::verbose                  = FALSE;
27 UBool NumberFormatRoundTripTest::STRING_COMPARE           = TRUE;
28 UBool NumberFormatRoundTripTest::EXACT_NUMERIC_COMPARE    = FALSE;
29 UBool NumberFormatRoundTripTest::DEBUG                    = FALSE;
30 double NumberFormatRoundTripTest::MAX_ERROR               = 1e-14;
31 double NumberFormatRoundTripTest::max_numeric_error       = 0.0;
32 double 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 
runIndexedTest(int32_t index,UBool exec,const char * & name,char *)36 void 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 
45 UBool
failure(UErrorCode status,const char * msg,UBool possibleDataError)46 NumberFormatRoundTripTest::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 
60 uint32_t
randLong()61 NumberFormatRoundTripTest::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  */
78 double
randomDouble(double range)79 NumberFormatRoundTripTest::randomDouble(double range)
80 {
81     double a = randFraction();
82     return (2.0 * range * a) - range;
83 }
84 
85 void
start()86 NumberFormatRoundTripTest::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 
146 void
test(NumberFormat * fmt)147 NumberFormatRoundTripTest::test(NumberFormat *fmt)
148 {
149 #if IEEE_754 && U_PLATFORM != U_PF_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 !(U_PF_OS390 <= U_PLATFORM && U_PLATFORM <= U_PF_OS400)
171         test(fmt, randomDouble(1e100));
172 #elif IEEE_754
173         test(fmt, randomDouble(1e75));
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 !(U_PF_OS390 <= U_PLATFORM && U_PLATFORM <= U_PF_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());
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 U_PF_OS390 <= U_PLATFORM && U_PLATFORM <= U_PF_OS400
203         // i5/OS (OS/400) 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 
217 void
test(NumberFormat * fmt,double value)218 NumberFormatRoundTripTest::test(NumberFormat *fmt, double value)
219 {
220     test(fmt, Formattable(value));
221 }
222 
223 void
test(NumberFormat * fmt,int32_t value)224 NumberFormatRoundTripTest::test(NumberFormat *fmt, int32_t value)
225 {
226     test(fmt, Formattable(value));
227 }
228 
229 void
test(NumberFormat * fmt,const Formattable & value)230 NumberFormatRoundTripTest::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 
298 double
proportionalError(const Formattable & a,const Formattable & b)299 NumberFormatRoundTripTest::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 
320 UnicodeString&
typeOf(const Formattable & n,UnicodeString & result)321 NumberFormatRoundTripTest::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 
338 UnicodeString&
escape(UnicodeString & s)339 NumberFormatRoundTripTest::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