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      1 /*
      2 *******************************************************************************
      3 * Copyright (C) 2007-2014, International Business Machines Corporation and
      4 * others. All Rights Reserved.
      5 ********************************************************************************
      6 
      7 * File PLURRULTS.cpp
      8 *
      9 ********************************************************************************
     10 */
     11 
     12 #include "unicode/utypes.h"
     13 
     14 #if !UCONFIG_NO_FORMATTING
     15 
     16 #include <stdlib.h>
     17 #include <stdarg.h>
     18 #include <string.h>
     19 
     20 #include "unicode/localpointer.h"
     21 #include "unicode/plurrule.h"
     22 #include "unicode/stringpiece.h"
     23 
     24 #include "cmemory.h"
     25 #include "digitlst.h"
     26 #include "plurrule_impl.h"
     27 #include "plurults.h"
     28 #include "uhash.h"
     29 
     30 void setupResult(const int32_t testSource[], char result[], int32_t* max);
     31 UBool checkEqual(const PluralRules &test, char *result, int32_t max);
     32 UBool testEquality(const PluralRules &test);
     33 
     34 // This is an API test, not a unit test.  It doesn't test very many cases, and doesn't
     35 // try to test the full functionality.  It just calls each function in the class and
     36 // verifies that it works on a basic level.
     37 
     38 void PluralRulesTest::runIndexedTest( int32_t index, UBool exec, const char* &name, char* /*par*/ )
     39 {
     40     if (exec) logln("TestSuite PluralRulesAPI");
     41     TESTCASE_AUTO_BEGIN;
     42     TESTCASE_AUTO(testAPI);
     43     // TESTCASE_AUTO(testGetUniqueKeywordValue);
     44     TESTCASE_AUTO(testGetSamples);
     45     TESTCASE_AUTO(testWithin);
     46     TESTCASE_AUTO(testGetAllKeywordValues);
     47     TESTCASE_AUTO(testOrdinal);
     48     TESTCASE_AUTO(testSelect);
     49     TESTCASE_AUTO(testAvailbleLocales);
     50     TESTCASE_AUTO(testParseErrors);
     51     TESTCASE_AUTO(testFixedDecimal);
     52     TESTCASE_AUTO_END;
     53 }
     54 
     55 
     56 // Quick and dirty class for putting UnicodeStrings in char * messages.
     57 //   TODO: something like this should be generally available.
     58 class US {
     59   private:
     60     char *buf;
     61   public:
     62     US(const UnicodeString &us) {
     63        int32_t bufLen = us.extract((int32_t)0, us.length(), (char *)NULL, (uint32_t)0) + 1;
     64        buf = (char *)uprv_malloc(bufLen);
     65        us.extract(0, us.length(), buf, bufLen); };
     66     const char *cstr() {return buf;};
     67     ~US() { uprv_free(buf);};
     68 };
     69 
     70 
     71 
     72 
     73 
     74 #define PLURAL_TEST_NUM    18
     75 /**
     76  * Test various generic API methods of PluralRules for API coverage.
     77  */
     78 void PluralRulesTest::testAPI(/*char *par*/)
     79 {
     80     UnicodeString pluralTestData[PLURAL_TEST_NUM] = {
     81             UNICODE_STRING_SIMPLE("a: n is 1"),
     82             UNICODE_STRING_SIMPLE("a: n mod 10 is 2"),
     83             UNICODE_STRING_SIMPLE("a: n is not 1"),
     84             UNICODE_STRING_SIMPLE("a: n mod 3 is not 1"),
     85             UNICODE_STRING_SIMPLE("a: n in 2..5"),
     86             UNICODE_STRING_SIMPLE("a: n within 2..5"),
     87             UNICODE_STRING_SIMPLE("a: n not in 2..5"),
     88             UNICODE_STRING_SIMPLE("a: n not within 2..5"),
     89             UNICODE_STRING_SIMPLE("a: n mod 10 in 2..5"),
     90             UNICODE_STRING_SIMPLE("a: n mod 10 within 2..5"),
     91             UNICODE_STRING_SIMPLE("a: n mod 10 is 2 and n is not 12"),
     92             UNICODE_STRING_SIMPLE("a: n mod 10 in 2..3 or n mod 10 is 5"),
     93             UNICODE_STRING_SIMPLE("a: n mod 10 within 2..3 or n mod 10 is 5"),
     94             UNICODE_STRING_SIMPLE("a: n is 1 or n is 4 or n is 23"),
     95             UNICODE_STRING_SIMPLE("a: n mod 2 is 1 and n is not 3 and n in 1..11"),
     96             UNICODE_STRING_SIMPLE("a: n mod 2 is 1 and n is not 3 and n within 1..11"),
     97             UNICODE_STRING_SIMPLE("a: n mod 2 is 1 or n mod 5 is 1 and n is not 6"),
     98             "",
     99     };
    100     static const int32_t pluralTestResult[PLURAL_TEST_NUM][30] = {
    101         {1, 0},
    102         {2,12,22, 0},
    103         {0,2,3,4,5,0},
    104         {0,2,3,5,6,8,9,0},
    105         {2,3,4,5,0},
    106         {2,3,4,5,0},
    107         {0,1,6,7,8, 0},
    108         {0,1,6,7,8, 0},
    109         {2,3,4,5,12,13,14,15,22,23,24,25,0},
    110         {2,3,4,5,12,13,14,15,22,23,24,25,0},
    111         {2,22,32,42,0},
    112         {2,3,5,12,13,15,22,23,25,0},
    113         {2,3,5,12,13,15,22,23,25,0},
    114         {1,4,23,0},
    115         {1,5,7,9,11,0},
    116         {1,5,7,9,11,0},
    117         {1,3,5,7,9,11,13,15,16,0},
    118     };
    119     UErrorCode status = U_ZERO_ERROR;
    120 
    121     // ======= Test constructors
    122     logln("Testing PluralRules constructors");
    123 
    124 
    125     logln("\n start default locale test case ..\n");
    126 
    127     PluralRules defRule(status);
    128     LocalPointer<PluralRules> test(new PluralRules(status), status);
    129     if(U_FAILURE(status)) {
    130         dataerrln("ERROR: Could not create PluralRules (default) - exitting");
    131         return;
    132     }
    133     LocalPointer<PluralRules> newEnPlural(test->forLocale(Locale::getEnglish(), status), status);
    134     if(U_FAILURE(status)) {
    135         dataerrln("ERROR: Could not create PluralRules (English) - exitting");
    136         return;
    137     }
    138 
    139     // ======= Test clone, assignment operator && == operator.
    140     LocalPointer<PluralRules> dupRule(defRule.clone());
    141     if (dupRule==NULL) {
    142         errln("ERROR: clone plural rules test failed!");
    143         return;
    144     } else {
    145         if ( *dupRule != defRule ) {
    146             errln("ERROR:  clone plural rules test failed!");
    147         }
    148     }
    149     *dupRule = *newEnPlural;
    150     if (dupRule!=NULL) {
    151         if ( *dupRule != *newEnPlural ) {
    152             errln("ERROR:  clone plural rules test failed!");
    153         }
    154     }
    155 
    156     // ======= Test empty plural rules
    157     logln("Testing Simple PluralRules");
    158 
    159     LocalPointer<PluralRules> empRule(test->createRules(UNICODE_STRING_SIMPLE("a:n"), status));
    160     UnicodeString key;
    161     for (int32_t i=0; i<10; ++i) {
    162         key = empRule->select(i);
    163         if ( key.charAt(0)!= 0x61 ) { // 'a'
    164             errln("ERROR:  empty plural rules test failed! - exitting");
    165         }
    166     }
    167 
    168     // ======= Test simple plural rules
    169     logln("Testing Simple PluralRules");
    170 
    171     char result[100];
    172     int32_t max;
    173 
    174     for (int32_t i=0; i<PLURAL_TEST_NUM-1; ++i) {
    175        LocalPointer<PluralRules> newRules(test->createRules(pluralTestData[i], status));
    176        setupResult(pluralTestResult[i], result, &max);
    177        if ( !checkEqual(*newRules, result, max) ) {
    178             errln("ERROR:  simple plural rules failed! - exitting");
    179             return;
    180         }
    181     }
    182 
    183     // ======= Test complex plural rules
    184     logln("Testing Complex PluralRules");
    185     // TODO: the complex test data is hard coded. It's better to implement
    186     // a parser to parse the test data.
    187     UnicodeString complexRule = UNICODE_STRING_SIMPLE("a: n in 2..5; b: n in 5..8; c: n mod 2 is 1");
    188     UnicodeString complexRule2 = UNICODE_STRING_SIMPLE("a: n within 2..5; b: n within 5..8; c: n mod 2 is 1");
    189     char cRuleResult[] =
    190     {
    191        0x6F, // 'o'
    192        0x63, // 'c'
    193        0x61, // 'a'
    194        0x61, // 'a'
    195        0x61, // 'a'
    196        0x61, // 'a'
    197        0x62, // 'b'
    198        0x62, // 'b'
    199        0x62, // 'b'
    200        0x63, // 'c'
    201        0x6F, // 'o'
    202        0x63  // 'c'
    203     };
    204     LocalPointer<PluralRules> newRules(test->createRules(complexRule, status));
    205     if ( !checkEqual(*newRules, cRuleResult, 12) ) {
    206          errln("ERROR:  complex plural rules failed! - exitting");
    207          return;
    208     }
    209     newRules.adoptInstead(test->createRules(complexRule2, status));
    210     if ( !checkEqual(*newRules, cRuleResult, 12) ) {
    211          errln("ERROR:  complex plural rules failed! - exitting");
    212          return;
    213     }
    214 
    215     // ======= Test decimal fractions plural rules
    216     UnicodeString decimalRule= UNICODE_STRING_SIMPLE("a: n not in 0..100;");
    217     UnicodeString KEYWORD_A = UNICODE_STRING_SIMPLE("a");
    218     status = U_ZERO_ERROR;
    219     newRules.adoptInstead(test->createRules(decimalRule, status));
    220     if (U_FAILURE(status)) {
    221         dataerrln("ERROR: Could not create PluralRules for testing fractions - exitting");
    222         return;
    223     }
    224     double fData[] =     {-101, -100, -1,     -0.0,  0,     0.1,  1,     1.999,  2.0,   100,   100.001 };
    225     UBool isKeywordA[] = {TRUE, FALSE, FALSE, FALSE, FALSE, TRUE, FALSE, TRUE,   FALSE, FALSE, TRUE };
    226     for (int32_t i=0; i<UPRV_LENGTHOF(fData); i++) {
    227         if ((newRules->select(fData[i])== KEYWORD_A) != isKeywordA[i]) {
    228              errln("File %s, Line %d, ERROR: plural rules for decimal fractions test failed!\n"
    229                    "  number = %g, expected %s", __FILE__, __LINE__, fData[i], isKeywordA[i]?"TRUE":"FALSE");
    230         }
    231     }
    232 
    233     // ======= Test Equality
    234     logln("Testing Equality of PluralRules");
    235 
    236     if ( !testEquality(*test) ) {
    237          errln("ERROR:  complex plural rules failed! - exitting");
    238          return;
    239      }
    240 
    241 
    242     // ======= Test getStaticClassID()
    243     logln("Testing getStaticClassID()");
    244 
    245     if(test->getDynamicClassID() != PluralRules::getStaticClassID()) {
    246         errln("ERROR: getDynamicClassID() didn't return the expected value");
    247     }
    248     // ====== Test fallback to parent locale
    249     LocalPointer<PluralRules> en_UK(test->forLocale(Locale::getUK(), status));
    250     LocalPointer<PluralRules> en(test->forLocale(Locale::getEnglish(), status));
    251     if (en_UK.isValid() && en.isValid()) {
    252         if ( *en_UK != *en ) {
    253             errln("ERROR:  test locale fallback failed!");
    254         }
    255     }
    256 
    257     LocalPointer<PluralRules> zh_Hant(test->forLocale(Locale::getTaiwan(), status));
    258     LocalPointer<PluralRules> zh(test->forLocale(Locale::getChinese(), status));
    259     if (zh_Hant.isValid() && zh.isValid()) {
    260         if ( *zh_Hant != *zh ) {
    261             errln("ERROR:  test locale fallback failed!");
    262         }
    263     }
    264 }
    265 
    266 void setupResult(const int32_t testSource[], char result[], int32_t* max) {
    267     int32_t i=0;
    268     int32_t curIndex=0;
    269 
    270     do {
    271         while (curIndex < testSource[i]) {
    272             result[curIndex++]=0x6F; //'o' other
    273         }
    274         result[curIndex++]=0x61; // 'a'
    275 
    276     } while(testSource[++i]>0);
    277     *max=curIndex;
    278 }
    279 
    280 
    281 UBool checkEqual(const PluralRules &test, char *result, int32_t max) {
    282     UnicodeString key;
    283     UBool isEqual = TRUE;
    284     for (int32_t i=0; i<max; ++i) {
    285         key= test.select(i);
    286         if ( key.charAt(0)!=result[i] ) {
    287             isEqual = FALSE;
    288         }
    289     }
    290     return isEqual;
    291 }
    292 
    293 
    294 
    295 static const int32_t MAX_EQ_ROW = 2;
    296 static const int32_t MAX_EQ_COL = 5;
    297 UBool testEquality(const PluralRules &test) {
    298     UnicodeString testEquRules[MAX_EQ_ROW][MAX_EQ_COL] = {
    299         {   UNICODE_STRING_SIMPLE("a: n in 2..3"),
    300             UNICODE_STRING_SIMPLE("a: n is 2 or n is 3"),
    301             UNICODE_STRING_SIMPLE( "a:n is 3 and n in 2..5 or n is 2"),
    302             "",
    303         },
    304         {   UNICODE_STRING_SIMPLE("a: n is 12; b:n mod 10 in 2..3"),
    305             UNICODE_STRING_SIMPLE("b: n mod 10 in 2..3 and n is not 12; a: n in 12..12"),
    306             UNICODE_STRING_SIMPLE("b: n is 13; a: n in 12..13; b: n mod 10 is 2 or n mod 10 is 3"),
    307             "",
    308         }
    309     };
    310     UErrorCode status = U_ZERO_ERROR;
    311     UnicodeString key[MAX_EQ_COL];
    312     UBool ret=TRUE;
    313     for (int32_t i=0; i<MAX_EQ_ROW; ++i) {
    314         PluralRules* rules[MAX_EQ_COL];
    315 
    316         for (int32_t j=0; j<MAX_EQ_COL; ++j) {
    317             rules[j]=NULL;
    318         }
    319         int32_t totalRules=0;
    320         while((totalRules<MAX_EQ_COL) && (testEquRules[i][totalRules].length()>0) ) {
    321             rules[totalRules]=test.createRules(testEquRules[i][totalRules], status);
    322             totalRules++;
    323         }
    324         for (int32_t n=0; n<300 && ret ; ++n) {
    325             for(int32_t j=0; j<totalRules;++j) {
    326                 key[j] = rules[j]->select(n);
    327             }
    328             for(int32_t j=0; j<totalRules-1;++j) {
    329                 if (key[j]!=key[j+1]) {
    330                     ret= FALSE;
    331                     break;
    332                 }
    333             }
    334 
    335         }
    336         for (int32_t j=0; j<MAX_EQ_COL; ++j) {
    337             if (rules[j]!=NULL) {
    338                 delete rules[j];
    339             }
    340         }
    341     }
    342 
    343     return ret;
    344 }
    345 
    346 void
    347 PluralRulesTest::assertRuleValue(const UnicodeString& rule, double expected) {
    348   assertRuleKeyValue("a:" + rule, "a", expected);
    349 }
    350 
    351 void
    352 PluralRulesTest::assertRuleKeyValue(const UnicodeString& rule,
    353                                     const UnicodeString& key, double expected) {
    354   UErrorCode status = U_ZERO_ERROR;
    355   PluralRules *pr = PluralRules::createRules(rule, status);
    356   double result = pr->getUniqueKeywordValue(key);
    357   delete pr;
    358   if (expected != result) {
    359     errln("expected %g but got %g", expected, result);
    360   }
    361 }
    362 
    363 // TODO: UniqueKeywordValue() is not currently supported.
    364 //       If it never will be, this test code should be removed.
    365 void PluralRulesTest::testGetUniqueKeywordValue() {
    366   assertRuleValue("n is 1", 1);
    367   assertRuleValue("n in 2..2", 2);
    368   assertRuleValue("n within 2..2", 2);
    369   assertRuleValue("n in 3..4", UPLRULES_NO_UNIQUE_VALUE);
    370   assertRuleValue("n within 3..4", UPLRULES_NO_UNIQUE_VALUE);
    371   assertRuleValue("n is 2 or n is 2", 2);
    372   assertRuleValue("n is 2 and n is 2", 2);
    373   assertRuleValue("n is 2 or n is 3", UPLRULES_NO_UNIQUE_VALUE);
    374   assertRuleValue("n is 2 and n is 3", UPLRULES_NO_UNIQUE_VALUE);
    375   assertRuleValue("n is 2 or n in 2..3", UPLRULES_NO_UNIQUE_VALUE);
    376   assertRuleValue("n is 2 and n in 2..3", 2);
    377   assertRuleKeyValue("a: n is 1", "not_defined", UPLRULES_NO_UNIQUE_VALUE); // key not defined
    378   assertRuleKeyValue("a: n is 1", "other", UPLRULES_NO_UNIQUE_VALUE); // key matches default rule
    379 }
    380 
    381 void PluralRulesTest::testGetSamples() {
    382   // TODO: fix samples, re-enable this test.
    383 
    384   // no get functional equivalent API in ICU4C, so just
    385   // test every locale...
    386   UErrorCode status = U_ZERO_ERROR;
    387   int32_t numLocales;
    388   const Locale* locales = Locale::getAvailableLocales(numLocales);
    389 
    390   double values[1000];
    391   for (int32_t i = 0; U_SUCCESS(status) && i < numLocales; ++i) {
    392     PluralRules *rules = PluralRules::forLocale(locales[i], status);
    393     if (U_FAILURE(status)) {
    394       break;
    395     }
    396     StringEnumeration *keywords = rules->getKeywords(status);
    397     if (U_FAILURE(status)) {
    398       delete rules;
    399       break;
    400     }
    401     const UnicodeString* keyword;
    402     while (NULL != (keyword = keywords->snext(status))) {
    403       int32_t count = rules->getSamples(*keyword, values, UPRV_LENGTHOF(values), status);
    404       if (U_FAILURE(status)) {
    405         errln(UNICODE_STRING_SIMPLE("getSamples() failed for locale ") +
    406               locales[i].getName() +
    407               UNICODE_STRING_SIMPLE(", keyword ") + *keyword);
    408         continue;
    409       }
    410       if (count == 0) {
    411         // TODO: Lots of these.
    412         //   errln(UNICODE_STRING_SIMPLE("no samples for keyword ") + *keyword + UNICODE_STRING_SIMPLE(" in locale ") + locales[i].getName() );
    413       }
    414       if (count > UPRV_LENGTHOF(values)) {
    415         errln(UNICODE_STRING_SIMPLE("getSamples()=") + count +
    416               UNICODE_STRING_SIMPLE(", too many values, for locale ") +
    417               locales[i].getName() +
    418               UNICODE_STRING_SIMPLE(", keyword ") + *keyword);
    419         count = UPRV_LENGTHOF(values);
    420       }
    421       for (int32_t j = 0; j < count; ++j) {
    422         if (values[j] == UPLRULES_NO_UNIQUE_VALUE) {
    423           errln("got 'no unique value' among values");
    424         } else {
    425           UnicodeString resultKeyword = rules->select(values[j]);
    426           // if (strcmp(locales[i].getName(), "uk") == 0) {    // Debug only.
    427           //     std::cout << "  uk " << US(resultKeyword).cstr() << " " << values[j] << std::endl;
    428           // }
    429           if (*keyword != resultKeyword) {
    430             errln("file %s, line %d, Locale %s, sample for keyword \"%s\":  %g, select(%g) returns keyword \"%s\"",
    431                 __FILE__, __LINE__, locales[i].getName(), US(*keyword).cstr(), values[j], values[j], US(resultKeyword).cstr());
    432           }
    433         }
    434       }
    435     }
    436     delete keywords;
    437     delete rules;
    438   }
    439 }
    440 
    441 void PluralRulesTest::testWithin() {
    442   // goes to show you what lack of testing will do.
    443   // of course, this has been broken for two years and no one has noticed...
    444   UErrorCode status = U_ZERO_ERROR;
    445   PluralRules *rules = PluralRules::createRules("a: n mod 10 in 5..8", status);
    446   if (!rules) {
    447     errln("couldn't instantiate rules");
    448     return;
    449   }
    450 
    451   UnicodeString keyword = rules->select((int32_t)26);
    452   if (keyword != "a") {
    453     errln("expected 'a' for 26 but didn't get it.");
    454   }
    455 
    456   keyword = rules->select(26.5);
    457   if (keyword != "other") {
    458     errln("expected 'other' for 26.5 but didn't get it.");
    459   }
    460 
    461   delete rules;
    462 }
    463 
    464 void
    465 PluralRulesTest::testGetAllKeywordValues() {
    466     const char* data[] = {
    467         "a: n in 2..5", "a: 2,3,4,5; other: null; b:",
    468         "a: n not in 2..5", "a: null; other: null",
    469         "a: n within 2..5", "a: null; other: null",
    470         "a: n not within 2..5", "a: null; other: null",
    471         "a: n in 2..5 or n within 6..8", "a: null", // ignore 'other' here on out, always null
    472         "a: n in 2..5 and n within 6..8", "a:",
    473         "a: n in 2..5 and n within 5..8", "a: 5",
    474         "a: n within 2..5 and n within 6..8", "a:", // our sampling catches these
    475         "a: n within 2..5 and n within 5..8", "a: 5", // ''
    476         "a: n within 1..2 and n within 2..3 or n within 3..4 and n within 4..5", "a: 2,4",
    477         "a: n within 1..2 and n within 2..3 or n within 3..4 and n within 4..5 "
    478           "or n within 5..6 and n within 6..7", "a: null", // but not this...
    479         "a: n mod 3 is 0", "a: null",
    480         "a: n mod 3 is 0 and n within 1..2", "a:",
    481         "a: n mod 3 is 0 and n within 0..5", "a: 0,3",
    482         "a: n mod 3 is 0 and n within 0..6", "a: null", // similarly with mod, we don't catch...
    483         "a: n mod 3 is 0 and n in 3..12", "a: 3,6,9,12",
    484         NULL
    485     };
    486 
    487     for (int i = 0; data[i] != NULL; i += 2) {
    488         UErrorCode status = U_ZERO_ERROR;
    489         UnicodeString ruleDescription(data[i], -1, US_INV);
    490         const char* result = data[i+1];
    491 
    492         logln("[%d] %s", i >> 1, data[i]);
    493 
    494         PluralRules *p = PluralRules::createRules(ruleDescription, status);
    495         if (p == NULL || U_FAILURE(status)) {
    496             errln("file %s, line %d: could not create rules from '%s'\n"
    497                   "  ErrorCode: %s\n",
    498                   __FILE__, __LINE__, data[i], u_errorName(status));
    499             continue;
    500         }
    501 
    502         // TODO: fix samples implementation, re-enable test.
    503         (void)result;
    504         #if 0
    505 
    506         const char* rp = result;
    507         while (*rp) {
    508             while (*rp == ' ') ++rp;
    509             if (!rp) {
    510                 break;
    511             }
    512 
    513             const char* ep = rp;
    514             while (*ep && *ep != ':') ++ep;
    515 
    516             status = U_ZERO_ERROR;
    517             UnicodeString keyword(rp, ep - rp, US_INV);
    518             double samples[4]; // no test above should have more samples than 4
    519             int32_t count = p->getAllKeywordValues(keyword, &samples[0], 4, status);
    520             if (U_FAILURE(status)) {
    521                 errln("error getting samples for %s", rp);
    522                 break;
    523             }
    524 
    525             if (count > 4) {
    526               errln("count > 4 for keyword %s", rp);
    527               count = 4;
    528             }
    529 
    530             if (*ep) {
    531                 ++ep; // skip colon
    532                 while (*ep && *ep == ' ') ++ep; // and spaces
    533             }
    534 
    535             UBool ok = TRUE;
    536             if (count == -1) {
    537                 if (*ep != 'n') {
    538                     errln("expected values for keyword %s but got -1 (%s)", rp, ep);
    539                     ok = FALSE;
    540                 }
    541             } else if (*ep == 'n') {
    542                 errln("expected count of -1, got %d, for keyword %s (%s)", count, rp, ep);
    543                 ok = FALSE;
    544             }
    545 
    546             // We'll cheat a bit here.  The samples happend to be in order and so are our
    547             // expected values, so we'll just test in order until a failure.  If the
    548             // implementation changes to return samples in an arbitrary order, this test
    549             // must change.  There's no actual restriction on the order of the samples.
    550 
    551             for (int j = 0; ok && j < count; ++j ) { // we've verified count < 4
    552                 double val = samples[j];
    553                 if (*ep == 0 || *ep == ';') {
    554                     errln("got unexpected value[%d]: %g", j, val);
    555                     ok = FALSE;
    556                     break;
    557                 }
    558                 char* xp;
    559                 double expectedVal = strtod(ep, &xp);
    560                 if (xp == ep) {
    561                     // internal error
    562                     errln("yikes!");
    563                     ok = FALSE;
    564                     break;
    565                 }
    566                 ep = xp;
    567                 if (expectedVal != val) {
    568                     errln("expected %g but got %g", expectedVal, val);
    569                     ok = FALSE;
    570                     break;
    571                 }
    572                 if (*ep == ',') ++ep;
    573             }
    574 
    575             if (ok && count != -1) {
    576                 if (!(*ep == 0 || *ep == ';')) {
    577                     errln("file: %s, line %d, didn't get expected value: %s", __FILE__, __LINE__, ep);
    578                     ok = FALSE;
    579                 }
    580             }
    581 
    582             while (*ep && *ep != ';') ++ep;
    583             if (*ep == ';') ++ep;
    584             rp = ep;
    585         }
    586     #endif
    587     delete p;
    588     }
    589 }
    590 
    591 void PluralRulesTest::testOrdinal() {
    592     IcuTestErrorCode errorCode(*this, "testOrdinal");
    593     LocalPointer<PluralRules> pr(PluralRules::forLocale("en", UPLURAL_TYPE_ORDINAL, errorCode));
    594     if (errorCode.logIfFailureAndReset("PluralRules::forLocale(en, UPLURAL_TYPE_ORDINAL) failed")) {
    595         return;
    596     }
    597     UnicodeString keyword = pr->select(2.);
    598     if (keyword != UNICODE_STRING("two", 3)) {
    599         dataerrln("PluralRules(en-ordinal).select(2) failed");
    600     }
    601 }
    602 
    603 
    604 static const char * END_MARK = "999.999";    // Mark end of varargs data.
    605 
    606 void PluralRulesTest::checkSelect(const LocalPointer<PluralRules> &rules, UErrorCode &status,
    607                                   int32_t line, const char *keyword, ...) {
    608     // The varargs parameters are a const char* strings, each being a decimal number.
    609     //   The formatting of the numbers as strings is significant, e.g.
    610     //     the difference between "2" and "2.0" can affect which rule matches (which keyword is selected).
    611     // Note: rules parameter is a LocalPointer reference rather than a PluralRules * to avoid having
    612     //       to write getAlias() at every (numerous) call site.
    613 
    614     if (U_FAILURE(status)) {
    615         errln("file %s, line %d, ICU error status: %s.", __FILE__, line, u_errorName(status));
    616         status = U_ZERO_ERROR;
    617         return;
    618     }
    619 
    620     if (rules == NULL) {
    621         errln("file %s, line %d: rules pointer is NULL", __FILE__, line);
    622         return;
    623     }
    624 
    625     va_list ap;
    626     va_start(ap, keyword);
    627     for (;;) {
    628         const char *num = va_arg(ap, const char *);
    629         if (strcmp(num, END_MARK) == 0) {
    630             break;
    631         }
    632 
    633         // DigitList is a convenient way to parse the decimal number string and get a double.
    634         DigitList  dl;
    635         dl.set(StringPiece(num), status);
    636         if (U_FAILURE(status)) {
    637             errln("file %s, line %d, ICU error status: %s.", __FILE__, line, u_errorName(status));
    638             status = U_ZERO_ERROR;
    639             continue;
    640         }
    641         double numDbl = dl.getDouble();
    642         const char *decimalPoint = strchr(num, '.');
    643         int fractionDigitCount = decimalPoint == NULL ? 0 : (num + strlen(num) - 1) - decimalPoint;
    644         int fractionDigits = fractionDigitCount == 0 ? 0 : atoi(decimalPoint + 1);
    645         FixedDecimal ni(numDbl, fractionDigitCount, fractionDigits);
    646 
    647         UnicodeString actualKeyword = rules->select(ni);
    648         if (actualKeyword != UnicodeString(keyword)) {
    649             errln("file %s, line %d, select(%s) returned incorrect keyword. Expected %s, got %s",
    650                    __FILE__, line, num, keyword, US(actualKeyword).cstr());
    651         }
    652     }
    653     va_end(ap);
    654 }
    655 
    656 void PluralRulesTest::testSelect() {
    657     UErrorCode status = U_ZERO_ERROR;
    658     LocalPointer<PluralRules> pr(PluralRules::createRules("s: n in 1,3,4,6", status));
    659     checkSelect(pr, status, __LINE__, "s", "1.0", "3.0", "4.0", "6.0", END_MARK);
    660     checkSelect(pr, status, __LINE__, "other", "0.0", "2.0", "3.1", "7.0", END_MARK);
    661 
    662     pr.adoptInstead(PluralRules::createRules("s: n not in 1,3,4,6", status));
    663     checkSelect(pr, status, __LINE__, "other", "1.0", "3.0", "4.0", "6.0", END_MARK);
    664     checkSelect(pr, status, __LINE__, "s", "0.0", "2.0", "3.1", "7.0", END_MARK);
    665 
    666     pr.adoptInstead(PluralRules::createRules("r: n in 1..4, 7..10, 14 .. 17;"
    667                                              "s: n is 29;", status));
    668     checkSelect(pr, status, __LINE__, "r", "1.0", "3.0", "7.0", "8.0", "10.0", "14.0", "17.0", END_MARK);
    669     checkSelect(pr, status, __LINE__, "s", "29.0", END_MARK);
    670     checkSelect(pr, status, __LINE__, "other", "28.0", "29.1", END_MARK);
    671 
    672     pr.adoptInstead(PluralRules::createRules("a: n mod 10 is 1;  b: n mod 100 is 0 ", status));
    673     checkSelect(pr, status, __LINE__, "a", "1", "11", "41", "101", "301.00", END_MARK);
    674     checkSelect(pr, status, __LINE__, "b", "0", "100", "200.0", "300.", "1000", "1100", "110000", END_MARK);
    675     checkSelect(pr, status, __LINE__, "other", "0.01", "1.01", "0.99", "2", "3", "99", "102", END_MARK);
    676 
    677     // Rules that end with or without a ';' and with or without trailing spaces.
    678     //    (There was a rule parser bug here with these.)
    679     pr.adoptInstead(PluralRules::createRules("a: n is 1", status));
    680     checkSelect(pr, status, __LINE__, "a", "1", END_MARK);
    681     checkSelect(pr, status, __LINE__, "other", "2", END_MARK);
    682 
    683     pr.adoptInstead(PluralRules::createRules("a: n is 1 ", status));
    684     checkSelect(pr, status, __LINE__, "a", "1", END_MARK);
    685     checkSelect(pr, status, __LINE__, "other", "2", END_MARK);
    686 
    687     pr.adoptInstead(PluralRules::createRules("a: n is 1;", status));
    688     checkSelect(pr, status, __LINE__, "a", "1", END_MARK);
    689     checkSelect(pr, status, __LINE__, "other", "2", END_MARK);
    690 
    691     pr.adoptInstead(PluralRules::createRules("a: n is 1 ; ", status));
    692     checkSelect(pr, status, __LINE__, "a", "1", END_MARK);
    693     checkSelect(pr, status, __LINE__, "other", "2", END_MARK);
    694 
    695     // First match when rules for different keywords are not disjoint.
    696     //   Also try spacing variations around ':' and '..'
    697     pr.adoptInstead(PluralRules::createRules("c: n in 5..15;  b : n in 1..10 ;a:n in 10 .. 20", status));
    698     checkSelect(pr, status, __LINE__, "a", "20", END_MARK);
    699     checkSelect(pr, status, __LINE__, "b", "1", END_MARK);
    700     checkSelect(pr, status, __LINE__, "c", "10", END_MARK);
    701     checkSelect(pr, status, __LINE__, "other", "0", "21", "10.1", END_MARK);
    702 
    703     // in vs within
    704     pr.adoptInstead(PluralRules::createRules("a: n in 2..10; b: n within 8..15", status));
    705     checkSelect(pr, status, __LINE__, "a", "2", "8", "10", END_MARK);
    706     checkSelect(pr, status, __LINE__, "b", "8.01", "9.5", "11", "14.99", "15", END_MARK);
    707     checkSelect(pr, status, __LINE__, "other", "1", "7.7", "15.01", "16", END_MARK);
    708 
    709     // OR and AND chains.
    710     pr.adoptInstead(PluralRules::createRules("a: n in 2..10 and n in 4..12 and n not in 5..7", status));
    711     checkSelect(pr, status, __LINE__, "a", "4", "8", "9", "10", END_MARK);
    712     checkSelect(pr, status, __LINE__, "other", "2", "3", "5", "7", "11", END_MARK);
    713     pr.adoptInstead(PluralRules::createRules("a: n is 2 or n is 5 or n in 7..11 and n in 11..13", status));
    714     checkSelect(pr, status, __LINE__, "a", "2", "5", "11", END_MARK);
    715     checkSelect(pr, status, __LINE__, "other", "3", "4", "6", "8", "10", "12", "13", END_MARK);
    716 
    717     // Number attributes -
    718     //   n: the number itself
    719     //   i: integer digits
    720     //   f: visible fraction digits
    721     //   t: f with trailing zeros removed.
    722     //   v: number of visible fraction digits
    723     //   j: = n if there are no visible fraction digits
    724     //      != anything if there are visible fraction digits
    725 
    726     pr.adoptInstead(PluralRules::createRules("a: i is 123", status));
    727     checkSelect(pr, status, __LINE__, "a", "123", "123.0", "123.1", "0123.99", END_MARK);
    728     checkSelect(pr, status, __LINE__, "other", "124", "122.0", END_MARK);
    729 
    730     pr.adoptInstead(PluralRules::createRules("a: f is 120", status));
    731     checkSelect(pr, status, __LINE__, "a", "1.120", "0.120", "11123.120", "0123.120", END_MARK);
    732     checkSelect(pr, status, __LINE__, "other", "1.121", "122.1200", "1.12", "120", END_MARK);
    733 
    734     pr.adoptInstead(PluralRules::createRules("a: t is 12", status));
    735     checkSelect(pr, status, __LINE__, "a", "1.120", "0.12", "11123.12000", "0123.1200000", END_MARK);
    736     checkSelect(pr, status, __LINE__, "other", "1.121", "122.1200001", "1.11", "12", END_MARK);
    737 
    738     pr.adoptInstead(PluralRules::createRules("a: v is 3", status));
    739     checkSelect(pr, status, __LINE__, "a", "1.120", "0.000", "11123.100", "0123.124", ".666", END_MARK);
    740     checkSelect(pr, status, __LINE__, "other", "1.1212", "122.12", "1.1", "122", "0.0000", END_MARK);
    741 
    742     pr.adoptInstead(PluralRules::createRules("a: v is 0 and i is 123", status));
    743     checkSelect(pr, status, __LINE__, "a", "123", "123.", END_MARK);
    744     checkSelect(pr, status, __LINE__, "other", "123.0", "123.1", "123.123", "0.123", END_MARK);
    745 
    746     // The reserved words from the rule syntax will also function as keywords.
    747     pr.adoptInstead(PluralRules::createRules("a: n is 21; n: n is 22; i: n is 23; f: n is 24;"
    748                                              "t: n is 25; v: n is 26; w: n is 27; j: n is 28"
    749                                              , status));
    750     checkSelect(pr, status, __LINE__, "other", "20", "29", END_MARK);
    751     checkSelect(pr, status, __LINE__, "a", "21", END_MARK);
    752     checkSelect(pr, status, __LINE__, "n", "22", END_MARK);
    753     checkSelect(pr, status, __LINE__, "i", "23", END_MARK);
    754     checkSelect(pr, status, __LINE__, "f", "24", END_MARK);
    755     checkSelect(pr, status, __LINE__, "t", "25", END_MARK);
    756     checkSelect(pr, status, __LINE__, "v", "26", END_MARK);
    757     checkSelect(pr, status, __LINE__, "w", "27", END_MARK);
    758     checkSelect(pr, status, __LINE__, "j", "28", END_MARK);
    759 
    760 
    761     pr.adoptInstead(PluralRules::createRules("not: n=31; and: n=32; or: n=33; mod: n=34;"
    762                                              "in: n=35; within: n=36;is:n=37"
    763                                              , status));
    764     checkSelect(pr, status, __LINE__, "other",  "30", "39", END_MARK);
    765     checkSelect(pr, status, __LINE__, "not",    "31", END_MARK);
    766     checkSelect(pr, status, __LINE__, "and",    "32", END_MARK);
    767     checkSelect(pr, status, __LINE__, "or",     "33", END_MARK);
    768     checkSelect(pr, status, __LINE__, "mod",    "34", END_MARK);
    769     checkSelect(pr, status, __LINE__, "in",     "35", END_MARK);
    770     checkSelect(pr, status, __LINE__, "within", "36", END_MARK);
    771     checkSelect(pr, status, __LINE__, "is",     "37", END_MARK);
    772 
    773 // Test cases from ICU4J PluralRulesTest.parseTestData
    774 
    775     pr.adoptInstead(PluralRules::createRules("a: n is 1", status));
    776     checkSelect(pr, status, __LINE__, "a", "1", END_MARK);
    777     pr.adoptInstead(PluralRules::createRules("a: n mod 10 is 2", status));
    778     checkSelect(pr, status, __LINE__, "a", "2", "12", "22", END_MARK);
    779     pr.adoptInstead(PluralRules::createRules("a: n is not 1", status));
    780     checkSelect(pr, status, __LINE__, "a", "0", "2", "3", "4", "5", END_MARK);
    781     pr.adoptInstead(PluralRules::createRules("a: n mod 3 is not 1", status));
    782     checkSelect(pr, status, __LINE__, "a", "0", "2", "3", "5", "6", "8", "9", END_MARK);
    783     pr.adoptInstead(PluralRules::createRules("a: n in 2..5", status));
    784     checkSelect(pr, status, __LINE__, "a", "2", "3", "4", "5", END_MARK);
    785     pr.adoptInstead(PluralRules::createRules("a: n within 2..5", status));
    786     checkSelect(pr, status, __LINE__, "a", "2", "3", "4", "5", END_MARK);
    787     pr.adoptInstead(PluralRules::createRules("a: n not in 2..5", status));
    788     checkSelect(pr, status, __LINE__, "a", "0", "1", "6", "7", "8", END_MARK);
    789     pr.adoptInstead(PluralRules::createRules("a: n not within 2..5", status));
    790     checkSelect(pr, status, __LINE__, "a", "0", "1", "6", "7", "8", END_MARK);
    791     pr.adoptInstead(PluralRules::createRules("a: n mod 10 in 2..5", status));
    792     checkSelect(pr, status, __LINE__, "a", "2", "3", "4", "5", "12", "13", "14", "15", "22", "23", "24", "25", END_MARK);
    793     pr.adoptInstead(PluralRules::createRules("a: n mod 10 within 2..5", status));
    794     checkSelect(pr, status, __LINE__, "a", "2", "3", "4", "5", "12", "13", "14", "15", "22", "23", "24", "25", END_MARK);
    795     pr.adoptInstead(PluralRules::createRules("a: n mod 10 is 2 and n is not 12", status));
    796     checkSelect(pr, status, __LINE__, "a", "2", "22", "32", "42", END_MARK);
    797     pr.adoptInstead(PluralRules::createRules("a: n mod 10 in 2..3 or n mod 10 is 5", status));
    798     checkSelect(pr, status, __LINE__, "a", "2", "3", "5", "12", "13", "15", "22", "23", "25", END_MARK);
    799     pr.adoptInstead(PluralRules::createRules("a: n mod 10 within 2..3 or n mod 10 is 5", status));
    800     checkSelect(pr, status, __LINE__, "a", "2", "3", "5", "12", "13", "15", "22", "23", "25", END_MARK);
    801     pr.adoptInstead(PluralRules::createRules("a: n is 1 or n is 4 or n is 23", status));
    802     checkSelect(pr, status, __LINE__, "a", "1", "4", "23", END_MARK);
    803     pr.adoptInstead(PluralRules::createRules("a: n mod 2 is 1 and n is not 3 and n in 1..11", status));
    804     checkSelect(pr, status, __LINE__, "a", "1", "5", "7", "9", "11", END_MARK);
    805     pr.adoptInstead(PluralRules::createRules("a: n mod 2 is 1 and n is not 3 and n within 1..11", status));
    806     checkSelect(pr, status, __LINE__, "a", "1", "5", "7", "9", "11", END_MARK);
    807     pr.adoptInstead(PluralRules::createRules("a: n mod 2 is 1 or n mod 5 is 1 and n is not 6", status));
    808     checkSelect(pr, status, __LINE__, "a", "1", "3", "5", "7", "9", "11", "13", "15", "16", END_MARK);
    809     pr.adoptInstead(PluralRules::createRules("a: n in 2..5; b: n in 5..8; c: n mod 2 is 1", status));
    810     checkSelect(pr, status, __LINE__, "a", "2", "3", "4", "5", END_MARK);
    811     checkSelect(pr, status, __LINE__, "b", "6", "7", "8", END_MARK);
    812     checkSelect(pr, status, __LINE__, "c", "1", "9", "11", END_MARK);
    813     pr.adoptInstead(PluralRules::createRules("a: n within 2..5; b: n within 5..8; c: n mod 2 is 1", status));
    814     checkSelect(pr, status, __LINE__, "a", "2", "3", "4", "5", END_MARK);
    815     checkSelect(pr, status, __LINE__, "b", "6", "7", "8", END_MARK);
    816     checkSelect(pr, status, __LINE__, "c", "1", "9", "11", END_MARK);
    817     pr.adoptInstead(PluralRules::createRules("a: n in 2, 4..6; b: n within 7..9,11..12,20", status));
    818     checkSelect(pr, status, __LINE__, "a", "2", "4", "5", "6", END_MARK);
    819     checkSelect(pr, status, __LINE__, "b", "7", "8", "9", "11", "12", "20", END_MARK);
    820     pr.adoptInstead(PluralRules::createRules("a: n in 2..8, 12 and n not in 4..6", status));
    821     checkSelect(pr, status, __LINE__, "a", "2", "3", "7", "8", "12", END_MARK);
    822     pr.adoptInstead(PluralRules::createRules("a: n mod 10 in 2, 3,5..7 and n is not 12", status));
    823     checkSelect(pr, status, __LINE__, "a", "2", "3", "5", "6", "7", "13", "15", "16", "17", END_MARK);
    824     pr.adoptInstead(PluralRules::createRules("a: n in 2..6, 3..7", status));
    825     checkSelect(pr, status, __LINE__, "a", "2", "3", "4", "5", "6", "7", END_MARK);
    826 
    827     // Extended Syntax, with '=', '!=' and '%' operators.
    828     pr.adoptInstead(PluralRules::createRules("a: n = 1..8 and n!= 2,3,4,5", status));
    829     checkSelect(pr, status, __LINE__, "a", "1", "6", "7", "8", END_MARK);
    830     checkSelect(pr, status, __LINE__, "other", "0", "2", "3", "4", "5", "9", END_MARK);
    831     pr.adoptInstead(PluralRules::createRules("a:n % 10 != 1", status));
    832     checkSelect(pr, status, __LINE__, "a", "2", "6", "7", "8", END_MARK);
    833     checkSelect(pr, status, __LINE__, "other", "1", "21", "211", "91", END_MARK);
    834 }
    835 
    836 
    837 void PluralRulesTest::testAvailbleLocales() {
    838 
    839     // Hash set of (char *) strings.
    840     UErrorCode status = U_ZERO_ERROR;
    841     UHashtable *localeSet = uhash_open(uhash_hashUnicodeString, uhash_compareUnicodeString, uhash_compareLong, &status);
    842     uhash_setKeyDeleter(localeSet, uprv_deleteUObject);
    843     if (U_FAILURE(status)) {
    844         errln("file %s,  line %d: Error status = %s", __FILE__, __LINE__, u_errorName(status));
    845         return;
    846     }
    847 
    848     // Check that each locale returned by the iterator is unique.
    849     StringEnumeration *localesEnum = PluralRules::getAvailableLocales(status);
    850     int localeCount = 0;
    851     for (;;) {
    852         const char *locale = localesEnum->next(NULL, status);
    853         if (U_FAILURE(status)) {
    854             dataerrln("file %s,  line %d: Error status = %s", __FILE__, __LINE__, u_errorName(status));
    855             return;
    856         }
    857         if (locale == NULL) {
    858             break;
    859         }
    860         localeCount++;
    861         int32_t oldVal = uhash_puti(localeSet, new UnicodeString(locale), 1, &status);
    862         if (oldVal != 0) {
    863             errln("file %s,  line %d: locale %s was seen before.", __FILE__, __LINE__, locale);
    864         }
    865     }
    866 
    867     // Reset the iterator, verify that we get the same count.
    868     localesEnum->reset(status);
    869     int32_t localeCount2 = 0;
    870     while (localesEnum->next(NULL, status) != NULL) {
    871         if (U_FAILURE(status)) {
    872             errln("file %s,  line %d: Error status = %s", __FILE__, __LINE__, u_errorName(status));
    873             break;
    874         }
    875         localeCount2++;
    876     }
    877     if (localeCount != localeCount2) {
    878         errln("file %s,  line %d: locale counts differ. They are (%d, %d)",
    879             __FILE__, __LINE__, localeCount, localeCount2);
    880     }
    881 
    882     // Instantiate plural rules for each available locale.
    883     localesEnum->reset(status);
    884     for (;;) {
    885         status = U_ZERO_ERROR;
    886         const char *localeName = localesEnum->next(NULL, status);
    887         if (U_FAILURE(status)) {
    888             errln("file %s,  line %d: Error status = %s, locale = %s",
    889                 __FILE__, __LINE__, u_errorName(status), localeName);
    890             return;
    891         }
    892         if (localeName == NULL) {
    893             break;
    894         }
    895         Locale locale = Locale::createFromName(localeName);
    896         PluralRules *pr = PluralRules::forLocale(locale, status);
    897         if (U_FAILURE(status)) {
    898             errln("file %s,  line %d: Error %s creating plural rules for locale %s",
    899                 __FILE__, __LINE__, u_errorName(status), localeName);
    900             continue;
    901         }
    902         if (pr == NULL) {
    903             errln("file %s, line %d: Null plural rules for locale %s", __FILE__, __LINE__, localeName);
    904             continue;
    905         }
    906 
    907         // Pump some numbers through the plural rules.  Can't check for correct results,
    908         // mostly this to tickle any asserts or crashes that may be lurking.
    909         for (double n=0; n<120.0; n+=0.5) {
    910             UnicodeString keyword = pr->select(n);
    911             if (keyword.length() == 0) {
    912                 errln("file %s, line %d, empty keyword for n = %g, locale %s",
    913                     __FILE__, __LINE__, n, localeName);
    914             }
    915         }
    916         delete pr;
    917     }
    918 
    919     uhash_close(localeSet);
    920     delete localesEnum;
    921 
    922 }
    923 
    924 
    925 void PluralRulesTest::testParseErrors() {
    926     // Test rules with syntax errors.
    927     // Creation of PluralRules from them should fail.
    928 
    929     static const char *testCases[] = {
    930             "a: n mod 10, is 1",
    931             "a: q is 13",
    932             "a  n is 13",
    933             "a: n is 13,",
    934             "a: n is 13, 15,   b: n is 4",
    935             "a: n is 1, 3, 4.. ",
    936             "a: n within 5..4",
    937             "A: n is 13",          // Uppercase keywords not allowed.
    938             "a: n ! = 3",          // spaces in != operator
    939             "a: n = not 3",        // '=' not exact equivalent of 'is'
    940             "a: n ! in 3..4"       // '!' not exact equivalent of 'not'
    941             "a: n % 37 ! in 3..4"
    942 
    943             };
    944     for (int i=0; i<UPRV_LENGTHOF(testCases); i++) {
    945         const char *rules = testCases[i];
    946         UErrorCode status = U_ZERO_ERROR;
    947         PluralRules *pr = PluralRules::createRules(UnicodeString(rules), status);
    948         if (U_SUCCESS(status)) {
    949             errln("file %s, line %d, expected failure with \"%s\".", __FILE__, __LINE__, rules);
    950         }
    951         if (pr != NULL) {
    952             errln("file %s, line %d, expected NULL. Rules: \"%s\"", __FILE__, __LINE__, rules);
    953         }
    954     }
    955     return;
    956 }
    957 
    958 
    959 void PluralRulesTest::testFixedDecimal() {
    960     struct DoubleTestCase {
    961         double n;
    962         int32_t fractionDigitCount;
    963         int64_t fractionDigits;
    964     };
    965 
    966     // Check that the internal functions for extracting the decimal fraction digits from
    967     //   a double value are working.
    968     static DoubleTestCase testCases[] = {
    969         {1.0, 0, 0},
    970         {123456.0, 0, 0},
    971         {1.1, 1, 1},
    972         {1.23, 2, 23},
    973         {1.234, 3, 234},
    974         {1.2345, 4, 2345},
    975         {1.23456, 5, 23456},
    976         {.1234, 4, 1234},
    977         {.01234, 5, 1234},
    978         {.001234, 6, 1234},
    979         {.0001234, 7, 1234},
    980         {100.1234, 4, 1234},
    981         {100.01234, 5, 1234},
    982         {100.001234, 6, 1234},
    983         {100.0001234, 7, 1234}
    984     };
    985 
    986     for (int i=0; i<UPRV_LENGTHOF(testCases); ++i) {
    987         DoubleTestCase &tc = testCases[i];
    988         int32_t numFractionDigits = FixedDecimal::decimals(tc.n);
    989         if (numFractionDigits != tc.fractionDigitCount) {
    990             errln("file %s, line %d: decimals(%g) expected %d, actual %d",
    991                    __FILE__, __LINE__, tc.n, tc.fractionDigitCount, numFractionDigits);
    992             continue;
    993         }
    994         int64_t actualFractionDigits = FixedDecimal::getFractionalDigits(tc.n, numFractionDigits);
    995         if (actualFractionDigits != tc.fractionDigits) {
    996             errln("file %s, line %d: getFractionDigits(%g, %d): expected %ld, got %ld",
    997                   __FILE__, __LINE__, tc.n, numFractionDigits, tc.fractionDigits, actualFractionDigits);
    998         }
    999     }
   1000 }
   1001 
   1002 
   1003 
   1004 #endif /* #if !UCONFIG_NO_FORMATTING */
   1005