1 // Copyright (C) 2016 and later: Unicode, Inc. and others.
2 // License & terms of use: http://www.unicode.org/copyright.html
3 /***********************************************************************
5 * Copyright (c) 1997-2015, International Business Machines Corporation
6 * and others. All Rights Reserved.
7 ***********************************************************************/
9 #include "unicode/utypes.h"
11 #if !UCONFIG_NO_FORMATTING
15 #include "unicode/dcfmtsym.h"
16 #include "unicode/decimfmt.h"
17 #include "unicode/locid.h"
21 #include <stdio.h> // for sprintf
24 // *****************************************************************************
25 // class NumberFormatRoundTripTest
26 // *****************************************************************************
28 UBool NumberFormatRoundTripTest::verbose = FALSE;
29 UBool NumberFormatRoundTripTest::STRING_COMPARE = TRUE;
30 UBool NumberFormatRoundTripTest::EXACT_NUMERIC_COMPARE = FALSE;
31 UBool NumberFormatRoundTripTest::DEBUG_VAR = FALSE;
32 double NumberFormatRoundTripTest::MAX_ERROR = 1e-14;
33 double NumberFormatRoundTripTest::max_numeric_error = 0.0;
34 double NumberFormatRoundTripTest::min_numeric_error = 1.0;
36 #define CASE(id,test) case id: name = #test; if (exec) { logln(#test "---"); logln((UnicodeString)""); test(); } break;
38 void NumberFormatRoundTripTest::runIndexedTest( int32_t index, UBool exec, const char* &name, char* /*par*/ )
40 // if (exec) logln((UnicodeString)"TestSuite NumberFormatRoundTripTest");
43 default: name = ""; break;
48 NumberFormatRoundTripTest::failure(UErrorCode status, const char* msg, UBool possibleDataError)
50 if(U_FAILURE(status)) {
51 if (possibleDataError) {
52 dataerrln(UnicodeString("FAIL: ") + msg + " failed, error " + u_errorName(status));
54 errln(UnicodeString("FAIL: ") + msg + " failed, error " + u_errorName(status));
63 NumberFormatRoundTripTest::randLong()
65 // Assume 8-bit (or larger) rand values. Also assume
66 // that the system rand() function is very poor, which it always is.
69 char* poke = (char*)&d;
70 for (i=0; i < sizeof(uint32_t); ++i)
72 poke[i] = (char)(rand() & 0xFF);
78 * Return a random value from -range..+range.
81 NumberFormatRoundTripTest::randomDouble(double range)
83 double a = randFraction();
84 return (2.0 * range * a) - range;
88 NumberFormatRoundTripTest::start()
90 // test(NumberFormat.getInstance(new Locale("sr", "", "")));
92 UErrorCode status = U_ZERO_ERROR;
94 NumberFormat *fmt = NULL;
96 logln("Default Locale");
98 fmt = NumberFormat::createInstance(status);
99 if (!failure(status, "NumberFormat::createInstance", TRUE)){
104 fmt = NumberFormat::createCurrencyInstance(status);
105 if (!failure(status, "NumberFormat::createCurrencyInstance", TRUE)){
110 fmt = NumberFormat::createPercentInstance(status);
111 if (!failure(status, "NumberFormat::createPercentInstance", TRUE)){
117 int32_t locCount = 0;
118 const Locale *loc = NumberFormat::getAvailableLocales(locCount);
122 logln("Quick mode: only testing first 5 Locales");
124 for(int i = 0; i < locCount; ++i) {
126 logln(loc[i].getDisplayName(name));
128 fmt = NumberFormat::createInstance(loc[i], status);
129 failure(status, "NumberFormat::createInstance");
133 fmt = NumberFormat::createCurrencyInstance(loc[i], status);
134 failure(status, "NumberFormat::createCurrencyInstance");
138 fmt = NumberFormat::createPercentInstance(loc[i], status);
139 failure(status, "NumberFormat::createPercentInstance");
144 logln(UnicodeString("Numeric error ") + min_numeric_error + " to " + max_numeric_error);
149 NumberFormatRoundTripTest::test(NumberFormat *fmt)
151 #if IEEE_754 && U_PLATFORM != U_PF_OS400
152 test(fmt, uprv_getNaN());
153 test(fmt, uprv_getInfinity());
154 test(fmt, -uprv_getInfinity());
157 test(fmt, (int32_t)500);
158 test(fmt, (int32_t)0);
159 test(fmt, (int32_t)-0);
161 double negZero = 0.0; negZero /= -1.0;
163 test(fmt, 9223372036854775808.0);
164 test(fmt, -9223372036854775809.0);
166 for(int i = 0; i < 10; ++i) {
167 test(fmt, randomDouble(1));
168 test(fmt, randomDouble(10000));
169 test(fmt, uprv_floor((randomDouble(10000))));
170 test(fmt, randomDouble(1e50));
171 test(fmt, randomDouble(1e-50));
172 #if !(U_PF_OS390 <= U_PLATFORM && U_PLATFORM <= U_PF_OS400)
173 test(fmt, randomDouble(1e100));
175 test(fmt, randomDouble(1e75));
176 #endif /* OS390 and OS400 */
177 // {sfb} When formatting with a percent instance, numbers very close to
178 // DBL_MAX will fail the round trip. This is because:
179 // 1) Format the double into a string --> INF% (since 100 * double > DBL_MAX)
180 // 2) Parse the string into a double --> INF
181 // 3) Re-format the double --> INF%
182 // 4) The strings are equal, so that works.
183 // 5) Calculate the proportional error --> INF, so the test will fail
184 // I'll get around this by dividing by the multiplier to make sure
185 // the double will stay in range.
186 //if(fmt->getMultipler() == 1)
187 DecimalFormat *df = dynamic_cast<DecimalFormat *>(fmt);
190 #if !(U_PF_OS390 <= U_PLATFORM && U_PLATFORM <= U_PF_OS400)
191 /* DBL_MAX/2 is here because randomDouble does a *2 in the math */
192 test(fmt, randomDouble(DBL_MAX/2.0) / df->getMultiplier());
194 test(fmt, randomDouble(1e75) / df->getMultiplier());
196 test(fmt, randomDouble(1e65) / df->getMultiplier());
200 #if (defined(_MSC_VER) && _MSC_VER < 1400) || defined(__alpha__) || defined(U_OSF)
201 // These machines and compilers don't fully support denormalized doubles,
202 test(fmt, randomDouble(1e-292));
203 test(fmt, randomDouble(1e-100));
204 #elif U_PF_OS390 <= U_PLATFORM && U_PLATFORM <= U_PF_OS400
205 // i5/OS (OS/400) throws exceptions on denormalized numbers
207 test(fmt, randomDouble(1e-78));
208 test(fmt, randomDouble(1e-78));
209 // #else we're using something like the old z/OS floating point.
212 // This is a normal machine that can support IEEE754 denormalized doubles without throwing an error.
213 test(fmt, randomDouble(DBL_MIN)); /* Usually 2.2250738585072014e-308 */
214 test(fmt, randomDouble(1e-100));
220 NumberFormatRoundTripTest::test(NumberFormat *fmt, double value)
222 test(fmt, Formattable(value));
226 NumberFormatRoundTripTest::test(NumberFormat *fmt, int32_t value)
228 test(fmt, Formattable(value));
232 NumberFormatRoundTripTest::test(NumberFormat *fmt, const Formattable& value)
234 fmt->setMaximumFractionDigits(999);
235 DecimalFormat *df = dynamic_cast<DecimalFormat *>(fmt);
237 df->setRoundingIncrement(0.0);
239 UErrorCode status = U_ZERO_ERROR;
240 UnicodeString s, s2, temp;
242 s = fmt->format(value.getDouble(), s);
244 s = fmt->format(value.getLong(), s);
247 UBool show = verbose;
249 logln(/*value.getString(temp) +*/ " F> " + escape(s));
251 fmt->parse(s, n, status);
252 failure(status, "fmt->parse");
254 logln(escape(s) + " P> " /*+ n.getString(temp)*/);
257 s2 = fmt->format(n.getDouble(), s2);
259 s2 = fmt->format(n.getLong(), s2);
262 logln(/*n.getString(temp) +*/ " F> " + escape(s2));
266 errln("*** STRING ERROR \"" + escape(s) + "\" != \"" + escape(s2) + "\"");
271 if(EXACT_NUMERIC_COMPARE) {
273 errln("*** NUMERIC ERROR");
278 // Compute proportional error
279 double error = proportionalError(value, n);
281 if(error > MAX_ERROR) {
282 errln(UnicodeString("*** NUMERIC ERROR ") + error);
286 if (error > max_numeric_error)
287 max_numeric_error = error;
288 if (error < min_numeric_error)
289 min_numeric_error = error;
293 errln(/*value.getString(temp) +*/ typeOf(value, temp) + " F> " +
294 escape(s) + " P> " + (n.getType() == Formattable::kDouble ? n.getDouble() : (double)n.getLong())
295 /*n.getString(temp) */ + typeOf(n, temp) + " F> " +
301 NumberFormatRoundTripTest::proportionalError(const Formattable& a, const Formattable& b)
315 double error = aa - bb;
316 if(aa != 0 && bb != 0)
319 return uprv_fabs(error);
323 NumberFormatRoundTripTest::typeOf(const Formattable& n, UnicodeString& result)
325 if(n.getType() == Formattable::kLong) {
326 result = UnicodeString(" Long");
328 else if(n.getType() == Formattable::kDouble) {
329 result = UnicodeString(" Double");
331 else if(n.getType() == Formattable::kString) {
332 result = UnicodeString(" UnicodeString");
341 NumberFormatRoundTripTest::escape(UnicodeString& s)
343 UnicodeString copy(s);
345 for(int i = 0; i < copy.length(); ++i) {
352 sprintf(temp, "%4X", c); // might not work
359 #endif /* #if !UCONFIG_NO_FORMATTING */