1 /***********************************************************************
3 * Copyright (c) 1997-2012, International Business Machines Corporation
4 * and others. All Rights Reserved.
5 ***********************************************************************/
7 #include "unicode/utypes.h"
9 #if !UCONFIG_NO_FORMATTING
11 #include "unicode/datefmt.h"
12 #include "unicode/smpdtfmt.h"
13 #include "unicode/gregocal.h"
14 #include "dtfmtrtts.h"
20 // *****************************************************************************
21 // class DateFormatRoundTripTest
22 // *****************************************************************************
24 // Useful for turning up subtle bugs: Change the following to TRUE, recompile,
25 // and run while at lunch.
26 // Warning -- makes test run infinite loop!!!
31 static const UVersionInfo ICU_452 = {4,5,2,0};
33 // Define this to test just a single locale
34 //#define TEST_ONE_LOC "cs_CZ"
36 // If SPARSENESS is > 0, we don't run each exhaustive possibility.
37 // There are 24 total possible tests per each locale. A SPARSENESS
38 // of 12 means we run half of them. A SPARSENESS of 23 means we run
39 // 1 of them. SPARSENESS _must_ be in the range 0..23.
40 int32_t DateFormatRoundTripTest::SPARSENESS = 0;
41 int32_t DateFormatRoundTripTest::TRIALS = 4;
42 int32_t DateFormatRoundTripTest::DEPTH = 5;
44 DateFormatRoundTripTest::DateFormatRoundTripTest() : dateFormat(0) {
47 DateFormatRoundTripTest::~DateFormatRoundTripTest() {
51 #define CASE(id,test) case id: name = #test; if (exec) { logln(#test "---"); logln((UnicodeString)""); test(); } break;
54 DateFormatRoundTripTest::runIndexedTest( int32_t index, UBool exec, const char* &name, char* par )
56 optionv = (par && *par=='v');
58 CASE(0,TestDateFormatRoundTrip)
60 default: name = ""; break;
65 DateFormatRoundTripTest::failure(UErrorCode status, const char* msg)
67 if(U_FAILURE(status)) {
68 errln(UnicodeString("FAIL: ") + msg + " failed, error " + u_errorName(status));
76 DateFormatRoundTripTest::failure(UErrorCode status, const char* msg, const UnicodeString& str)
78 if(U_FAILURE(status)) {
79 UnicodeString escaped;
81 errln(UnicodeString("FAIL: ") + msg + " failed, error " + u_errorName(status) + ", str=" + escaped);
88 void DateFormatRoundTripTest::TestCentury()
90 UErrorCode status = U_ZERO_ERROR;
91 Locale locale("es_PA");
92 UnicodeString pattern = "MM/dd/yy hh:mm:ss a z";
93 SimpleDateFormat fmt(pattern, locale, status);
94 if (U_FAILURE(status)) {
95 dataerrln("Fail: construct SimpleDateFormat: %s", u_errorName(status));
98 UDate date[] = {-55018555891590.05, 0, 0};
99 UnicodeString result[2];
101 fmt.format(date[0], result[0]);
102 date[1] = fmt.parse(result[0], status);
103 fmt.format(date[1], result[1]);
104 date[2] = fmt.parse(result[1], status);
106 /* This test case worked OK by accident before. date[1] != date[0],
107 * because we use -80/+20 year window for 2-digit year parsing.
108 * (date[0] is in year 1926, date[1] is in year 2026.) result[1] set
109 * by the first format call returns "07/13/26 07:48:28 p.m. PST",
110 * which is correct, because DST was not used in year 1926 in zone
111 * America/Los_Angeles. When this is parsed, date[1] becomes a time
112 * in 2026, which is "07/13/26 08:48:28 p.m. PDT". There was a zone
113 * offset calculation bug that observed DST in 1926, which was resolved.
114 * Before the bug was resolved, result[0] == result[1] was true,
115 * but after the bug fix, the expected result is actually
116 * result[0] != result[1]. -Yoshito
118 /* TODO: We need to review this code and clarify what we really
121 //if (date[1] != date[2] || result[0] != result[1]) {
122 if (date[1] != date[2]) {
123 errln("Round trip failure: \"%S\" (%f), \"%S\" (%f)", result[0].getBuffer(), date[1], result[1].getBuffer(), date[2]);
129 void DateFormatRoundTripTest::TestDateFormatRoundTrip()
131 UErrorCode status = U_ZERO_ERROR;
133 getFieldCal = Calendar::createInstance(status);
134 if (U_FAILURE(status)) {
135 dataerrln("Fail: Calendar::createInstance: %s", u_errorName(status));
140 int32_t locCount = 0;
141 const Locale *avail = DateFormat::getAvailableLocales(locCount);
142 logln("DateFormat available locales: %d", locCount);
145 logln("Quick mode: only testing SPARSENESS = 18");
147 TimeZone *tz = TimeZone::createDefault();
149 logln("Default TimeZone: " + tz->getID(temp));
152 #ifdef TEST_ONE_LOC // define this to just test ONE locale.
153 Locale loc(TEST_ONE_LOC);
163 // Special infinite loop test mode for finding hard to reproduce errors
164 Locale loc = Locale::getDefault();
165 logln("ENTERING INFINITE TEST LOOP FOR Locale: " + loc.getDisplayName(temp));
169 test(Locale::getDefault());
173 for (int i=0; i < locCount; ++i) {
180 int32_t jCount = CalendarTest::testLocaleCount();
181 for (int32_t j=0; j < jCount; ++j) {
182 test(Locale(CalendarTest::testLocaleID(j)));
192 static const char *styleName(DateFormat::EStyle s)
196 case DateFormat::SHORT: return "SHORT";
197 case DateFormat::MEDIUM: return "MEDIUM";
198 case DateFormat::LONG: return "LONG";
199 case DateFormat::FULL: return "FULL";
200 // case DateFormat::DEFAULT: return "DEFAULT";
201 case DateFormat::DATE_OFFSET: return "DATE_OFFSET";
202 case DateFormat::NONE: return "NONE";
203 case DateFormat::DATE_TIME: return "DATE_TIME";
204 default: return "Unknown";
208 void DateFormatRoundTripTest::test(const Locale& loc)
212 logln("Locale: " + loc.getDisplayName(temp));
215 // Total possibilities = 24
219 UBool TEST_TABLE [24];//= new boolean[24];
221 for(i = 0; i < 24; ++i)
222 TEST_TABLE[i] = TRUE;
224 // If we have some sparseness, implement it here. Sparseness decreases
225 // test time by eliminating some tests, up to 23.
226 for(i = 0; i < SPARSENESS; ) {
227 int random = (int)(randFraction() * 24);
228 if (random >= 0 && random < 24 && TEST_TABLE[i]) {
229 TEST_TABLE[i] = FALSE;
236 for(style = DateFormat::FULL; style <= DateFormat::SHORT; ++style) {
237 if(TEST_TABLE[itable++]) {
238 logln("Testing style " + UnicodeString(styleName((DateFormat::EStyle)style)));
239 DateFormat *df = DateFormat::createDateInstance((DateFormat::EStyle)style, loc);
241 errln(UnicodeString("Could not DF::createDateInstance ") + UnicodeString(styleName((DateFormat::EStyle)style)) + " Locale: " + loc.getDisplayName(temp));
249 for(style = DateFormat::FULL; style <= DateFormat::SHORT; ++style) {
250 if (TEST_TABLE[itable++]) {
251 logln("Testing style " + UnicodeString(styleName((DateFormat::EStyle)style)));
252 DateFormat *df = DateFormat::createTimeInstance((DateFormat::EStyle)style, loc);
254 errln(UnicodeString("Could not DF::createTimeInstance ") + UnicodeString(styleName((DateFormat::EStyle)style)) + " Locale: " + loc.getDisplayName(temp));
262 for(int32_t dstyle = DateFormat::FULL; dstyle <= DateFormat::SHORT; ++dstyle) {
263 for(int32_t tstyle = DateFormat::FULL; tstyle <= DateFormat::SHORT; ++tstyle) {
264 if(TEST_TABLE[itable++]) {
265 logln("Testing dstyle" + UnicodeString(styleName((DateFormat::EStyle)dstyle)) + ", tstyle" + UnicodeString(styleName((DateFormat::EStyle)tstyle)) );
266 DateFormat *df = DateFormat::createDateTimeInstance((DateFormat::EStyle)dstyle, (DateFormat::EStyle)tstyle, loc);
268 dataerrln(UnicodeString("Could not DF::createDateTimeInstance ") + UnicodeString(styleName((DateFormat::EStyle)dstyle)) + ", tstyle" + UnicodeString(styleName((DateFormat::EStyle)tstyle)) + "Locale: " + loc.getDisplayName(temp));
278 void DateFormatRoundTripTest::test(DateFormat *fmt, const Locale &origLocale, UBool timeOnly)
281 if(fmt->getDynamicClassID() != SimpleDateFormat::getStaticClassID()) {
282 errln("DateFormat wasn't a SimpleDateFormat");
286 UBool isGregorian = FALSE;
287 UErrorCode minStatus = U_ZERO_ERROR;
288 UDate minDate = CalendarTest::minDateOfCalendar(*fmt->getCalendar(), isGregorian, minStatus);
289 if(U_FAILURE(minStatus)) {
290 errln((UnicodeString)"Failure getting min date for " + origLocale.getName());
293 //logln(UnicodeString("Min date is ") + fullFormat(minDate) + " for " + origLocale.getName());
295 pat = ((SimpleDateFormat*)fmt)->toPattern(pat);
297 // NOTE TO MAINTAINER
298 // This indexOf check into the pattern needs to be refined to ignore
299 // quoted characters. Currently, this isn't a problem with the locale
300 // patterns we have, but it may be a problem later.
302 UBool hasEra = (pat.indexOf(UnicodeString("G")) != -1);
303 UBool hasZoneDisplayName = (pat.indexOf(UnicodeString("z")) != -1) || (pat.indexOf(UnicodeString("v")) != -1)
304 || (pat.indexOf(UnicodeString("V")) != -1);
306 // Because patterns contain incomplete data representing the Date,
307 // we must be careful of how we do the roundtrip. We start with
308 // a randomly generated Date because they're easier to generate.
309 // From this we get a string. The string is our real starting point,
310 // because this string should parse the same way all the time. Note
311 // that it will not necessarily parse back to the original date because
312 // of incompleteness in patterns. For example, a time-only pattern won't
313 // parse back to the same date.
316 for(int i = 0; i < TRIALS; ++i) {
317 UDate *d = new UDate [DEPTH];
318 UnicodeString *s = new UnicodeString[DEPTH];
320 if(isGregorian == TRUE) {
321 d[0] = generateDate();
323 d[0] = generateDate(minDate);
326 UErrorCode status = U_ZERO_ERROR;
328 // We go through this loop until we achieve a match or until
329 // the maximum loop count is reached. We record the points at
330 // which the date and the string starts to match. Once matching
331 // starts, it should continue.
333 int dmatch = 0; // d[dmatch].getTime() == d[dmatch-1].getTime()
334 int smatch = 0; // s[smatch].equals(s[smatch-1])
335 for(loop = 0; loop < DEPTH; ++loop) {
337 d[loop] = fmt->parse(s[loop-1], status);
338 failure(status, "fmt->parse", s[loop-1]+" in locale: " + origLocale.getName());
339 status = U_ZERO_ERROR; /* any error would have been reported */
342 s[loop] = fmt->format(d[loop], s[loop]);
344 // For displaying which date is being tested
345 //logln(s[loop] + " = " + fullFormat(d[loop]));
347 if(s[loop].length() == 0) {
348 errln("FAIL: fmt->format gave 0-length string in " + pat + " with number " + d[loop] + " in locale " + origLocale.getName());
353 UBool match = s[loop] == s[loop-1];
359 errln("FAIL: String mismatch after match");
363 // {sfb} watch out here, this might not work
364 UBool match = d[loop]/*.getTime()*/ == d[loop-1]/*.getTime()*/;
370 errln("FAIL: Date mismatch after match");
373 if(smatch != 0 && dmatch != 0)
377 // At this point loop == DEPTH if we've failed, otherwise loop is the
378 // max(smatch, dmatch), that is, the index at which we have string and
381 // Date usually matches in 2. Exceptions handled below.
384 if (dmatch > maxDmatch) {
385 // Time-only pattern with zone information and a starting date in PST.
386 if(timeOnly && hasZoneDisplayName) {
387 int32_t startRaw, startDst;
388 fmt->getTimeZone().getOffset(d[0], FALSE, startRaw, startDst, status);
389 failure(status, "TimeZone::getOffset");
390 // if the start offset is greater than the offset on Jan 1, 1970
391 // in PST, then need one more round trip. There are two cases
392 // fall into this category. The start date is 1) DST or
393 // 2) LMT (GMT-07:52:58).
394 if (startRaw + startDst > -28800000) {
401 // String usually matches in 1. Exceptions are checked for here.
402 if(smatch > maxSmatch) { // Don't compute unless necessary
404 // Starts in BC, with no era in pattern
405 if( ! hasEra && getField(d[0], UCAL_ERA) == GregorianCalendar::BC)
407 // Starts in DST, no year in pattern
408 else if((in0=fmt->getTimeZone().inDaylightTime(d[0], status)) && ! failure(status, "gettingDaylightTime") &&
409 pat.indexOf(UnicodeString("yyyy")) == -1)
411 // If we start not in DST, but transition into DST
413 fmt->getTimeZone().inDaylightTime(d[1], status) && !failure(status, "gettingDaylightTime"))
415 // Two digit year with no time zone change,
416 // unless timezone isn't used or we aren't close to the DST changover
417 else if (pat.indexOf(UnicodeString("y")) != -1
418 && pat.indexOf(UnicodeString("yyyy")) == -1
419 && getField(d[0], UCAL_YEAR)
420 != getField(d[dmatch], UCAL_YEAR)
421 && !failure(status, "error status [smatch>maxSmatch]")
422 && ((hasZoneDisplayName
423 && (fmt->getTimeZone().inDaylightTime(d[0], status)
424 == fmt->getTimeZone().inDaylightTime(d[dmatch], status)
425 || getField(d[0], UCAL_MONTH) == UCAL_APRIL
426 || getField(d[0], UCAL_MONTH) == UCAL_OCTOBER))
427 || !hasZoneDisplayName)
432 // If zone display name is used, fallback format might be used before 1970
433 else if (hasZoneDisplayName && d[0] < 0) {
439 * Special case for Japanese and Buddhist (could have large negative years)
440 * Also, Hebrew calendar need help handling leap month.
442 if(dmatch > maxDmatch || smatch > maxSmatch) {
443 const char *type = fmt->getCalendar()->getType();
444 if(!strcmp(type,"japanese") || (!strcmp(type,"buddhist"))) {
447 } else if(!strcmp(type,"hebrew")) {
453 // Use @v to see verbose results on successful cases
454 UBool fail = (dmatch > maxDmatch || smatch > maxSmatch);
455 if (optionv || fail) {
457 errln(UnicodeString("\nFAIL: Pattern: ") + pat +
458 " in Locale: " + origLocale.getName());
460 errln(UnicodeString("\nOk: Pattern: ") + pat +
461 " in Locale: " + origLocale.getName());
464 logln("Date iters until match=%d (max allowed=%d), string iters until match=%d (max allowed=%d)",
465 dmatch,maxDmatch, smatch, maxSmatch);
467 for(int j = 0; j <= loop && j < DEPTH; ++j) {
469 FieldPosition pos(FieldPosition::DONT_CARE);
470 errln((j>0?" P> ":" ") + fullFormat(d[j]) + " F> " +
471 escape(s[j], temp) + UnicodeString(" d=") + d[j] +
472 (j > 0 && d[j]/*.getTime()*/==d[j-1]/*.getTime()*/?" d==":"") +
473 (j > 0 && s[j] == s[j-1]?" s==":""));
480 catch (ParseException e) {
481 errln("Exception: " + e.getMessage());
486 const UnicodeString& DateFormatRoundTripTest::fullFormat(UDate d) {
487 UErrorCode ec = U_ZERO_ERROR;
488 if (dateFormat == 0) {
489 dateFormat = new SimpleDateFormat((UnicodeString)"EEE MMM dd HH:mm:ss.SSS zzz yyyy G", ec);
490 if (U_FAILURE(ec) || dateFormat == 0) {
491 fgStr = "[FAIL: SimpleDateFormat constructor]";
498 dateFormat->format(d, fgStr);
503 * Return a field of the given date
505 int32_t DateFormatRoundTripTest::getField(UDate d, int32_t f) {
506 // Should be synchronized, but we're single threaded so it's ok
507 UErrorCode status = U_ZERO_ERROR;
508 getFieldCal->setTime(d, status);
509 failure(status, "getfieldCal->setTime");
510 int32_t ret = getFieldCal->get((UCalendarDateFields)f, status);
511 failure(status, "getfieldCal->get");
515 UnicodeString& DateFormatRoundTripTest::escape(const UnicodeString& src, UnicodeString& dst )
518 for (int32_t i = 0; i < src.length(); ++i) {
523 dst += UnicodeString("[");
525 sprintf(buf, "%#x", c);
526 dst += UnicodeString(buf);
527 dst += UnicodeString("]");
534 #define U_MILLIS_PER_YEAR (365.25 * 24 * 60 * 60 * 1000)
536 UDate DateFormatRoundTripTest::generateDate(UDate minDate)
538 // Bring range in conformance to generateDate() below.
539 if(minDate < (U_MILLIS_PER_YEAR * -(4000-1970))) {
540 minDate = (U_MILLIS_PER_YEAR * -(4000-1970));
542 for(int i=0;i<8;i++) {
543 double a = randFraction();
545 // Range from (min) to (8000-1970) AD
546 double dateRange = (0.0 - minDate) + (U_MILLIS_PER_YEAR + (8000-1970));
550 // Now offset from minDate
561 UDate DateFormatRoundTripTest::generateDate()
563 double a = randFraction();
565 // Now 'a' ranges from 0..1; scale it to range from 0 to 8000 years
568 // Range from (4000-1970) BC to (8000-1970) AD
571 // Now scale up to ms
572 a *= 365.25 * 24 * 60 * 60 * 1000;
574 //return new Date((long)a);
578 #endif /* #if !UCONFIG_NO_FORMATTING */