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scuffed-code/icu4c/source/test/intltest/plurults.cpp
Markus Scherer 8d7428d1b3 ICU-9132 ordinal-plural formatting in C/C++ 
X-SVN-Rev: 31687
2012-04-07 04:27:27 +00:00

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/*
*******************************************************************************
* Copyright (C) 2007-2012, International Business Machines Corporation and
* others. All Rights Reserved.
********************************************************************************
* File PLURRULTS.cpp
*
********************************************************************************
*/
#include "unicode/utypes.h"
#if !UCONFIG_NO_FORMATTING
#include <stdlib.h> // for strtod
#include "plurults.h"
#include "unicode/localpointer.h"
#include "unicode/plurrule.h"
#define LENGTHOF(array) (int32_t)(sizeof(array)/sizeof(array[0]))
void setupResult(const int32_t testSource[], char result[], int32_t* max);
UBool checkEqual(const PluralRules &test, char *result, int32_t max);
UBool testEquality(const PluralRules &test);
// This is an API test, not a unit test. It doesn't test very many cases, and doesn't
// try to test the full functionality. It just calls each function in the class and
// verifies that it works on a basic level.
void PluralRulesTest::runIndexedTest( int32_t index, UBool exec, const char* &name, char* /*par*/ )
{
if (exec) logln("TestSuite PluralRulesAPI");
TESTCASE_AUTO_BEGIN;
TESTCASE_AUTO(testAPI);
TESTCASE_AUTO(testGetUniqueKeywordValue);
TESTCASE_AUTO(testGetSamples);
TESTCASE_AUTO(testWithin);
TESTCASE_AUTO(testGetAllKeywordValues);
TESTCASE_AUTO(testOrdinal);
TESTCASE_AUTO_END;
}
#define PLURAL_TEST_NUM 18
/**
* Test various generic API methods of PluralRules for API coverage.
*/
void PluralRulesTest::testAPI(/*char *par*/)
{
UnicodeString pluralTestData[PLURAL_TEST_NUM] = {
UNICODE_STRING_SIMPLE("a: n is 1"),
UNICODE_STRING_SIMPLE("a: n mod 10 is 2"),
UNICODE_STRING_SIMPLE("a: n is not 1"),
UNICODE_STRING_SIMPLE("a: n mod 3 is not 1"),
UNICODE_STRING_SIMPLE("a: n in 2..5"),
UNICODE_STRING_SIMPLE("a: n within 2..5"),
UNICODE_STRING_SIMPLE("a: n not in 2..5"),
UNICODE_STRING_SIMPLE("a: n not within 2..5"),
UNICODE_STRING_SIMPLE("a: n mod 10 in 2..5"),
UNICODE_STRING_SIMPLE("a: n mod 10 within 2..5"),
UNICODE_STRING_SIMPLE("a: n mod 10 is 2 and n is not 12"),
UNICODE_STRING_SIMPLE("a: n mod 10 in 2..3 or n mod 10 is 5"),
UNICODE_STRING_SIMPLE("a: n mod 10 within 2..3 or n mod 10 is 5"),
UNICODE_STRING_SIMPLE("a: n is 1 or n is 4 or n is 23"),
UNICODE_STRING_SIMPLE("a: n mod 2 is 1 and n is not 3 and n in 1..11"),
UNICODE_STRING_SIMPLE("a: n mod 2 is 1 and n is not 3 and n within 1..11"),
UNICODE_STRING_SIMPLE("a: n mod 2 is 1 or n mod 5 is 1 and n is not 6"),
"",
};
static const int32_t pluralTestResult[PLURAL_TEST_NUM][30] = {
{1, 0},
{2,12,22, 0},
{0,2,3,4,5,0},
{0,2,3,5,6,8,9,0},
{2,3,4,5,0},
{2,3,4,5,0},
{0,1,6,7,8, 0},
{0,1,6,7,8, 0},
{2,3,4,5,12,13,14,15,22,23,24,25,0},
{2,3,4,5,12,13,14,15,22,23,24,25,0},
{2,22,32,42,0},
{2,3,5,12,13,15,22,23,25,0},
{2,3,5,12,13,15,22,23,25,0},
{1,4,23,0},
{1,5,7,9,11,0},
{1,5,7,9,11,0},
{1,3,5,7,9,11,13,15,16,0},
};
UErrorCode status = U_ZERO_ERROR;
// ======= Test constructors
logln("Testing PluralRules constructors");
logln("\n start default locale test case ..\n");
PluralRules defRule(status);
LocalPointer<PluralRules> test(new PluralRules(status));
LocalPointer<PluralRules> newEnPlural(test->forLocale(Locale::getEnglish(), status));
if(U_FAILURE(status)) {
dataerrln("ERROR: Could not create PluralRules (default) - exitting");
return;
}
// ======= Test clone, assignment operator && == operator.
LocalPointer<PluralRules> dupRule(defRule.clone());
if (dupRule==NULL) {
errln("ERROR: clone plural rules test failed!");
return;
} else {
if ( *dupRule != defRule ) {
errln("ERROR: clone plural rules test failed!");
}
}
*dupRule = *newEnPlural;
if (dupRule!=NULL) {
if ( *dupRule != *newEnPlural ) {
errln("ERROR: clone plural rules test failed!");
}
}
// ======= Test empty plural rules
logln("Testing Simple PluralRules");
LocalPointer<PluralRules> empRule(test->createRules(UNICODE_STRING_SIMPLE("a:n"), status));
UnicodeString key;
for (int32_t i=0; i<10; ++i) {
key = empRule->select(i);
if ( key.charAt(0)!= 0x61 ) { // 'a'
errln("ERROR: empty plural rules test failed! - exitting");
}
}
// ======= Test simple plural rules
logln("Testing Simple PluralRules");
char result[100];
int32_t max;
for (int32_t i=0; i<PLURAL_TEST_NUM-1; ++i) {
LocalPointer<PluralRules> newRules(test->createRules(pluralTestData[i], status));
setupResult(pluralTestResult[i], result, &max);
if ( !checkEqual(*newRules, result, max) ) {
errln("ERROR: simple plural rules failed! - exitting");
return;
}
}
// ======= Test complex plural rules
logln("Testing Complex PluralRules");
// TODO: the complex test data is hard coded. It's better to implement
// a parser to parse the test data.
UnicodeString complexRule = UNICODE_STRING_SIMPLE("a: n in 2..5; b: n in 5..8; c: n mod 2 is 1");
UnicodeString complexRule2 = UNICODE_STRING_SIMPLE("a: n within 2..5; b: n within 5..8; c: n mod 2 is 1");
char cRuleResult[] =
{
0x6F, // 'o'
0x63, // 'c'
0x61, // 'a'
0x61, // 'a'
0x61, // 'a'
0x61, // 'a'
0x62, // 'b'
0x62, // 'b'
0x62, // 'b'
0x63, // 'c'
0x6F, // 'o'
0x63 // 'c'
};
LocalPointer<PluralRules> newRules(test->createRules(complexRule, status));
if ( !checkEqual(*newRules, cRuleResult, 12) ) {
errln("ERROR: complex plural rules failed! - exitting");
return;
}
newRules.adoptInstead(test->createRules(complexRule2, status));
if ( !checkEqual(*newRules, cRuleResult, 12) ) {
errln("ERROR: complex plural rules failed! - exitting");
return;
}
// ======= Test decimal fractions plural rules
UnicodeString decimalRule= UNICODE_STRING_SIMPLE("a: n not in 0..100;");
UnicodeString KEYWORD_A = UNICODE_STRING_SIMPLE("a");
status = U_ZERO_ERROR;
newRules.adoptInstead(test->createRules(decimalRule, status));
if (U_FAILURE(status)) {
dataerrln("ERROR: Could not create PluralRules for testing fractions - exitting");
return;
}
double fData[10] = {-100, -1, -0.0, 0, 0.1, 1, 1.999, 2.0, 100, 100.001 };
UBool isKeywordA[10] = {
TRUE, TRUE, FALSE, FALSE, TRUE, FALSE, TRUE, FALSE, FALSE, TRUE };
for (int32_t i=0; i<10; i++) {
if ((newRules->select(fData[i])== KEYWORD_A) != isKeywordA[i]) {
errln("ERROR: plural rules for decimal fractions test failed!");
}
}
// ======= Test Equality
logln("Testing Equality of PluralRules");
if ( !testEquality(*test) ) {
errln("ERROR: complex plural rules failed! - exitting");
return;
}
// ======= Test getStaticClassID()
logln("Testing getStaticClassID()");
if(test->getDynamicClassID() != PluralRules::getStaticClassID()) {
errln("ERROR: getDynamicClassID() didn't return the expected value");
}
// ====== Test fallback to parent locale
LocalPointer<PluralRules> en_UK(test->forLocale(Locale::getUK(), status));
LocalPointer<PluralRules> en(test->forLocale(Locale::getEnglish(), status));
if (en_UK.isValid() && en.isValid()) {
if ( *en_UK != *en ) {
errln("ERROR: test locale fallback failed!");
}
}
LocalPointer<PluralRules> zh_Hant(test->forLocale(Locale::getTaiwan(), status));
LocalPointer<PluralRules> zh(test->forLocale(Locale::getChinese(), status));
if (zh_Hant.isValid() && zh.isValid()) {
if ( *zh_Hant != *zh ) {
errln("ERROR: test locale fallback failed!");
}
}
}
void setupResult(const int32_t testSource[], char result[], int32_t* max) {
int32_t i=0;
int32_t curIndex=0;
do {
while (curIndex < testSource[i]) {
result[curIndex++]=0x6F; //'o' other
}
result[curIndex++]=0x61; // 'a'
} while(testSource[++i]>0);
*max=curIndex;
}
UBool checkEqual(const PluralRules &test, char *result, int32_t max) {
UnicodeString key;
UBool isEqual = TRUE;
for (int32_t i=0; i<max; ++i) {
key= test.select(i);
if ( key.charAt(0)!=result[i] ) {
isEqual = FALSE;
}
}
return isEqual;
}
#define MAX_EQ_ROW 2
#define MAX_EQ_COL 5
UBool testEquality(const PluralRules &test) {
UnicodeString testEquRules[MAX_EQ_ROW][MAX_EQ_COL] = {
{ UNICODE_STRING_SIMPLE("a: n in 2..3"),
UNICODE_STRING_SIMPLE("a: n is 2 or n is 3"),
UNICODE_STRING_SIMPLE( "a:n is 3 and n in 2..5 or n is 2"),
"",
},
{ UNICODE_STRING_SIMPLE("a: n is 12; b:n mod 10 in 2..3"),
UNICODE_STRING_SIMPLE("b: n mod 10 in 2..3 and n is not 12; a: n in 12..12"),
UNICODE_STRING_SIMPLE("b: n is 13; a: n in 12..13; b: n mod 10 is 2 or n mod 10 is 3"),
"",
}
};
UErrorCode status = U_ZERO_ERROR;
UnicodeString key[MAX_EQ_COL];
UBool ret=TRUE;
for (int32_t i=0; i<MAX_EQ_ROW; ++i) {
PluralRules* rules[MAX_EQ_COL];
for (int32_t j=0; j<MAX_EQ_COL; ++j) {
rules[j]=NULL;
}
int32_t totalRules=0;
while((totalRules<MAX_EQ_COL) && (testEquRules[i][totalRules].length()>0) ) {
rules[totalRules]=test.createRules(testEquRules[i][totalRules], status);
totalRules++;
}
for (int32_t n=0; n<300 && ret ; ++n) {
for(int32_t j=0; j<totalRules;++j) {
key[j] = rules[j]->select(n);
}
for(int32_t j=0; j<totalRules-1;++j) {
if (key[j]!=key[j+1]) {
ret= FALSE;
break;
}
}
}
for (int32_t j=0; j<MAX_EQ_COL; ++j) {
if (rules[j]!=NULL) {
delete rules[j];
}
}
}
return ret;
}
void
PluralRulesTest::assertRuleValue(const UnicodeString& rule, double expected) {
assertRuleKeyValue("a:" + rule, "a", expected);
}
void
PluralRulesTest::assertRuleKeyValue(const UnicodeString& rule,
const UnicodeString& key, double expected) {
UErrorCode status = U_ZERO_ERROR;
PluralRules *pr = PluralRules::createRules(rule, status);
double result = pr->getUniqueKeywordValue(key);
delete pr;
if (expected != result) {
errln("expected %g but got %g", expected, result);
}
}
void PluralRulesTest::testGetUniqueKeywordValue() {
assertRuleValue("n is 1", 1);
assertRuleValue("n in 2..2", 2);
assertRuleValue("n within 2..2", 2);
assertRuleValue("n in 3..4", UPLRULES_NO_UNIQUE_VALUE);
assertRuleValue("n within 3..4", UPLRULES_NO_UNIQUE_VALUE);
assertRuleValue("n is 2 or n is 2", 2);
assertRuleValue("n is 2 and n is 2", 2);
assertRuleValue("n is 2 or n is 3", UPLRULES_NO_UNIQUE_VALUE);
assertRuleValue("n is 2 and n is 3", UPLRULES_NO_UNIQUE_VALUE);
assertRuleValue("n is 2 or n in 2..3", UPLRULES_NO_UNIQUE_VALUE);
assertRuleValue("n is 2 and n in 2..3", 2);
assertRuleKeyValue("a: n is 1", "not_defined", UPLRULES_NO_UNIQUE_VALUE); // key not defined
assertRuleKeyValue("a: n is 1", "other", UPLRULES_NO_UNIQUE_VALUE); // key matches default rule
}
void PluralRulesTest::testGetSamples() {
// no get functional equivalent API in ICU4C, so just
// test every locale...
UErrorCode status = U_ZERO_ERROR;
int32_t numLocales;
const Locale* locales = Locale::getAvailableLocales(numLocales);
double values[4];
for (int32_t i = 0; U_SUCCESS(status) && i < numLocales; ++i) {
PluralRules *rules = PluralRules::forLocale(locales[i], status);
if (U_FAILURE(status)) {
break;
}
StringEnumeration *keywords = rules->getKeywords(status);
if (U_FAILURE(status)) {
delete rules;
break;
}
const UnicodeString* keyword;
while (NULL != (keyword = keywords->snext(status))) {
int32_t count = rules->getSamples(*keyword, values, 4, status);
if (U_FAILURE(status)) {
errln(UNICODE_STRING_SIMPLE("getSamples() failed for locale ") +
locales[i].getName() +
UNICODE_STRING_SIMPLE(", keyword ") + *keyword);
continue;
}
if (count == 0) {
errln("no samples for keyword");
}
if (count > LENGTHOF(values)) {
errln(UNICODE_STRING_SIMPLE("getSamples()=") + count +
UNICODE_STRING_SIMPLE(", too many values, for locale ") +
locales[i].getName() +
UNICODE_STRING_SIMPLE(", keyword ") + *keyword);
count = LENGTHOF(values);
}
for (int32_t j = 0; j < count; ++j) {
if (values[j] == UPLRULES_NO_UNIQUE_VALUE) {
errln("got 'no unique value' among values");
} else {
UnicodeString resultKeyword = rules->select(values[j]);
if (*keyword != resultKeyword) {
errln("keywords don't match");
}
}
}
}
delete keywords;
delete rules;
}
}
void PluralRulesTest::testWithin() {
// goes to show you what lack of testing will do.
// of course, this has been broken for two years and no one has noticed...
UErrorCode status = U_ZERO_ERROR;
PluralRules *rules = PluralRules::createRules("a: n mod 10 in 5..8", status);
if (!rules) {
errln("couldn't instantiate rules");
return;
}
UnicodeString keyword = rules->select((int32_t)26);
if (keyword != "a") {
errln("expected 'a' for 26 but didn't get it.");
}
keyword = rules->select(26.5);
if (keyword != "other") {
errln("expected 'other' for 26.5 but didn't get it.");
}
delete rules;
}
void
PluralRulesTest::testGetAllKeywordValues() {
const char* data[] = {
"a: n in 2..5", "a: 2,3,4,5; other: null; b:",
"a: n not in 2..5", "a: null; other: null",
"a: n within 2..5", "a: null; other: null",
"a: n not within 2..5", "a: null; other: null",
"a: n in 2..5 or n within 6..8", "a: null", // ignore 'other' here on out, always null
"a: n in 2..5 and n within 6..8", "a:",
"a: n in 2..5 and n within 5..8", "a: 5",
"a: n within 2..5 and n within 6..8", "a:", // our sampling catches these
"a: n within 2..5 and n within 5..8", "a: 5", // ''
"a: n within 1..2 and n within 2..3 or n within 3..4 and n within 4..5", "a: 2,4",
"a: n within 1..2 and n within 2..3 or n within 3..4 and n within 4..5 "
"or n within 5..6 and n within 6..7", "a: null", // but not this...
"a: n mod 3 is 0", "a: null",
"a: n mod 3 is 0 and n within 1..2", "a:",
"a: n mod 3 is 0 and n within 0..5", "a: 0,3",
"a: n mod 3 is 0 and n within 0..6", "a: null", // similarly with mod, we don't catch...
"a: n mod 3 is 0 and n in 3..12", "a: 3,6,9,12",
NULL
};
for (int i = 0; data[i] != NULL; i += 2) {
UErrorCode status = U_ZERO_ERROR;
UnicodeString ruleDescription(data[i], -1, US_INV);
const char* result = data[i+1];
logln("[%d] %s", i >> 1, data[i]);
PluralRules *p = PluralRules::createRules(ruleDescription, status);
if (U_FAILURE(status)) {
logln("could not create rules from '%s'\n", data[i]);
continue;
}
const char* rp = result;
while (*rp) {
while (*rp == ' ') ++rp;
if (!rp) {
break;
}
const char* ep = rp;
while (*ep && *ep != ':') ++ep;
status = U_ZERO_ERROR;
UnicodeString keyword(rp, ep - rp, US_INV);
double samples[4]; // no test above should have more samples than 4
int32_t count = p->getAllKeywordValues(keyword, &samples[0], 4, status);
if (U_FAILURE(status)) {
errln("error getting samples for %s", rp);
break;
}
if (count > 4) {
errln("count > 4 for keyword %s", rp);
count = 4;
}
if (*ep) {
++ep; // skip colon
while (*ep && *ep == ' ') ++ep; // and spaces
}
UBool ok = TRUE;
if (count == -1) {
if (*ep != 'n') {
errln("expected values for keyword %s but got -1 (%s)", rp, ep);
ok = FALSE;
}
} else if (*ep == 'n') {
errln("expected count of -1, got %d, for keyword %s (%s)", count, rp, ep);
ok = FALSE;
}
// We'll cheat a bit here. The samples happend to be in order and so are our
// expected values, so we'll just test in order until a failure. If the
// implementation changes to return samples in an arbitrary order, this test
// must change. There's no actual restriction on the order of the samples.
for (int j = 0; ok && j < count; ++j ) { // we've verified count < 4
double val = samples[j];
if (*ep == 0 || *ep == ';') {
errln("got unexpected value[%d]: %g", j, val);
ok = FALSE;
break;
}
char* xp;
double expectedVal = strtod(ep, &xp);
if (xp == ep) {
// internal error
errln("yikes!");
ok = FALSE;
break;
}
ep = xp;
if (expectedVal != val) {
errln("expected %g but got %g", expectedVal, val);
ok = FALSE;
break;
}
if (*ep == ',') ++ep;
}
if (ok && count != -1) {
if (!(*ep == 0 || *ep == ';')) {
errln("didn't get expected value: %s", ep);
ok = FALSE;
}
}
while (*ep && *ep != ';') ++ep;
if (*ep == ';') ++ep;
rp = ep;
}
delete p;
}
}
void PluralRulesTest::testOrdinal() {
IcuTestErrorCode errorCode(*this, "testOrdinal");
LocalPointer<PluralRules> pr(PluralRules::forLocale("en", UPLURAL_TYPE_ORDINAL, errorCode));
if (errorCode.logIfFailureAndReset("PluralRules::forLocale(en, UPLURAL_TYPE_ORDINAL) failed")) {
return;
}
UnicodeString keyword = pr->select(2.);
if (keyword != UNICODE_STRING("two", 3)) {
errln("PluralRules(en-ordinal).select(2) failed");
}
}
#endif /* #if !UCONFIG_NO_FORMATTING */
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