| // © 2016 and later: Unicode, Inc. and others. |
| // License & terms of use: http://www.unicode.org/copyright.html#License |
| /* |
| ****************************************************************************************** |
| * Copyright (C) 2009-2015, Google, Inc.; International Business Machines Corporation and * |
| * others. All Rights Reserved. * |
| ****************************************************************************************** |
| */ |
| |
| package com.ibm.icu.dev.test.util; |
| |
| import java.io.BufferedReader; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Locale; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.TreeSet; |
| |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| import com.ibm.icu.dev.test.TestFmwk; |
| import com.ibm.icu.dev.tool.locale.LikelySubtagsBuilder; |
| import com.ibm.icu.impl.locale.XCldrStub.FileUtilities; |
| import com.ibm.icu.impl.locale.XLikelySubtags; |
| import com.ibm.icu.util.LocaleMatcher; |
| import com.ibm.icu.util.LocaleMatcher.FavorSubtag; |
| import com.ibm.icu.util.LocalePriorityList; |
| import com.ibm.icu.util.ULocale; |
| |
| import junitparams.JUnitParamsRunner; |
| import junitparams.Parameters; |
| |
| /** |
| * Test the LocaleMatcher. |
| * |
| * @author markdavis |
| */ |
| @RunWith(JUnitParamsRunner.class) |
| public class LocaleMatcherTest extends TestFmwk { |
| private static final ULocale ZH_MO = new ULocale("zh_MO"); |
| private static final ULocale ZH_HK = new ULocale("zh_HK"); |
| |
| private LocaleMatcher newLocaleMatcher(LocalePriorityList build) { |
| return new LocaleMatcher(build); |
| } |
| |
| private LocaleMatcher newLocaleMatcher(String string) { |
| return new LocaleMatcher(LocalePriorityList.add(string).build()); |
| } |
| |
| @Test |
| public void testParentLocales() { |
| assertCloser("es_AR", "es_419", "es_ES"); |
| assertCloser("es_AR", "es_419", "es"); |
| |
| assertCloser("es_AR", "es_MX", "es"); |
| assertCloser("es_AR", "es_MX", "es"); |
| |
| assertCloser("en_AU", "en_GB", "en_US"); |
| assertCloser("en_AU", "en_GB", "en"); |
| |
| assertCloser("en_AU", "en_NZ", "en_US"); |
| assertCloser("en_AU", "en_NZ", "en"); |
| |
| assertCloser("pt_AO", "pt_PT", "pt_BR"); |
| assertCloser("pt_AO", "pt_PT", "pt"); |
| |
| assertCloser("zh_HK", "zh_MO", "zh_TW"); |
| assertCloser("zh_HK", "zh_MO", "zh_CN"); |
| assertCloser("zh_HK", "zh_MO", "zh"); |
| } |
| |
| private void assertCloser(String a, String closer, String further) { |
| LocaleMatcher matcher = newLocaleMatcher(further + ", " + closer); |
| assertEquals("test " + a + " is closer to " + closer + " than to " + further, new ULocale(closer), matcher.getBestMatch(a)); |
| matcher = newLocaleMatcher(closer + ", " + further); |
| assertEquals("test " + a + " is closer to " + closer + " than to " + further, new ULocale(closer), matcher.getBestMatch(a)); |
| } |
| |
| @Test |
| public void testChinese() { |
| LocaleMatcher matcher = newLocaleMatcher("zh_CN, zh_TW, iw"); |
| ULocale taiwanChinese = new ULocale("zh_TW"); |
| ULocale chinaChinese = new ULocale("zh_CN"); |
| assertEquals("zh_CN, zh_TW, iw;", taiwanChinese, matcher.getBestMatch("zh_Hant_TW")); |
| assertEquals("zh_CN, zh_TW, iw;", taiwanChinese, matcher.getBestMatch("zh_Hant")); |
| assertEquals("zh_CN, zh_TW, iw;", taiwanChinese, matcher.getBestMatch("zh_TW")); |
| assertEquals("zh_CN, zh_TW, iw;", chinaChinese, matcher.getBestMatch("zh_Hans_CN")); |
| assertEquals("zh_CN, zh_TW, iw;", chinaChinese, matcher.getBestMatch("zh_CN")); |
| assertEquals("zh_CN, zh_TW, iw;", chinaChinese, matcher.getBestMatch("zh")); |
| assertEquals("zh_CN, zh_TW, iw;", taiwanChinese, matcher.getBestMatch("zh_Hant_HK")); |
| } |
| |
| @Test |
| public void testenGB() { |
| final LocaleMatcher matcher = newLocaleMatcher("fr, en, en_GB, es_MX, es_419, es"); |
| assertEquals("en_GB", matcher.getBestMatch("en_NZ").toString()); |
| assertEquals("es", matcher.getBestMatch("es_ES").toString()); |
| assertEquals("es_419", matcher.getBestMatch("es_AR").toString()); |
| assertEquals("es_MX", matcher.getBestMatch("es_MX").toString()); |
| } |
| |
| @Test |
| public void testFallbacks() { |
| LocalePriorityList lpl = LocalePriorityList.add("en, hi").build(); |
| final LocaleMatcher matcher = newLocaleMatcher(lpl); |
| assertEquals("hi", matcher.getBestMatch("sa").toString()); |
| } |
| |
| @Test |
| public void testBasics() { |
| LocaleMatcher matcher = newLocaleMatcher( |
| LocalePriorityList. |
| add(ULocale.FRENCH).add(ULocale.UK).add(ULocale.ENGLISH). |
| build()); |
| logln(matcher.toString()); |
| |
| assertEquals(ULocale.UK, matcher.getBestMatch(ULocale.UK)); |
| assertEquals(ULocale.ENGLISH, matcher.getBestMatch(ULocale.US)); |
| assertEquals(ULocale.FRENCH, matcher.getBestMatch(ULocale.FRANCE)); |
| assertEquals(ULocale.FRENCH, matcher.getBestMatch(ULocale.JAPAN)); |
| |
| // API coverage |
| List<Locale> locales = new ArrayList<>(); |
| locales.add(Locale.FRENCH); |
| locales.add(Locale.UK); |
| matcher = LocaleMatcher.builder(). |
| setSupportedLocales(locales).addSupportedLocale(Locale.ENGLISH). |
| setDefaultLocale(Locale.GERMAN).build(); |
| assertEquals(ULocale.UK, matcher.getBestMatch(ULocale.UK)); |
| assertEquals(ULocale.ENGLISH, matcher.getBestMatch(ULocale.US)); |
| assertEquals(ULocale.FRENCH, matcher.getBestMatch(ULocale.FRANCE)); |
| assertEquals(ULocale.GERMAN, matcher.getBestMatch(ULocale.JAPAN)); |
| |
| ULocale udesired = new ULocale("en_GB"); // distinct object from ULocale.UK |
| LocaleMatcher.Result result = matcher.getBestMatchResult(udesired); |
| assertTrue("exactly desired en-GB object", udesired == result.getDesiredULocale()); |
| assertEquals(Locale.UK, result.getDesiredLocale()); |
| assertEquals(0, result.getDesiredIndex()); |
| assertEquals(ULocale.UK, result.getSupportedULocale()); |
| assertEquals(Locale.UK, result.getSupportedLocale()); |
| assertEquals(1, result.getSupportedIndex()); |
| |
| LocalePriorityList list = LocalePriorityList.add(ULocale.JAPAN, ULocale.US).build(); |
| result = matcher.getBestMatchResult(list); |
| assertEquals(1, result.getDesiredIndex()); |
| assertEquals(Locale.US, result.getDesiredLocale()); |
| |
| Locale desired = new Locale("en", "US"); // distinct object from Locale.US |
| result = matcher.getBestLocaleResult(desired); |
| assertEquals(ULocale.US, result.getDesiredULocale()); |
| assertTrue("exactly desired en-US object", desired == result.getDesiredLocale()); |
| assertEquals(0, result.getDesiredIndex()); |
| assertEquals(ULocale.ENGLISH, result.getSupportedULocale()); |
| assertEquals(Locale.ENGLISH, result.getSupportedLocale()); |
| assertEquals(2, result.getSupportedIndex()); |
| |
| result = matcher.getBestMatchResult(ULocale.JAPAN); |
| assertNull(result.getDesiredLocale()); |
| assertNull(result.getDesiredULocale()); |
| assertEquals(-1, result.getDesiredIndex()); |
| assertEquals(ULocale.GERMAN, result.getSupportedULocale()); |
| assertEquals(Locale.GERMAN, result.getSupportedLocale()); |
| assertEquals(-1, result.getSupportedIndex()); |
| } |
| |
| private static final String locString(ULocale loc) { |
| return loc != null ? loc.getName() : "(null)"; |
| } |
| |
| @Test |
| public void testSupportedDefault() { |
| // The default locale is one of the supported locales. |
| List<ULocale> locales = Arrays.asList( |
| new ULocale("fr"), new ULocale("en_GB"), new ULocale("en")); |
| LocaleMatcher matcher = LocaleMatcher.builder(). |
| setSupportedULocales(locales). |
| setDefaultULocale(locales.get(1)). |
| build(); |
| ULocale best = matcher.getBestMatch("en_GB"); |
| assertEquals("getBestMatch(en_GB)", "en_GB", locString(best)); |
| best = matcher.getBestMatch("en_US"); |
| assertEquals("getBestMatch(en_US)", "en", locString(best)); |
| best = matcher.getBestMatch("fr_FR"); |
| assertEquals("getBestMatch(fr_FR)", "fr", locString(best)); |
| best = matcher.getBestMatch("ja_JP"); |
| assertEquals("getBestMatch(ja_JP)", "en_GB", locString(best)); |
| LocaleMatcher.Result result = matcher.getBestMatchResult(new ULocale("ja_JP")); |
| assertEquals("getBestMatchResult(ja_JP).supp", |
| "en_GB", locString(result.getSupportedULocale())); |
| assertEquals("getBestMatchResult(ja_JP).suppIndex", |
| -1, result.getSupportedIndex()); |
| } |
| |
| @Test |
| public void testUnsupportedDefault() { |
| // The default locale does not match any of the supported locales. |
| List<ULocale> locales = Arrays.asList( |
| new ULocale("fr"), new ULocale("en_GB"), new ULocale("en")); |
| LocaleMatcher matcher = LocaleMatcher.builder(). |
| setSupportedULocales(locales). |
| setDefaultULocale(new ULocale("de")). |
| build(); |
| ULocale best = matcher.getBestMatch("en_GB"); |
| assertEquals("getBestMatch(en_GB)", "en_GB", locString(best)); |
| best = matcher.getBestMatch("en_US"); |
| assertEquals("getBestMatch(en_US)", "en", locString(best)); |
| best = matcher.getBestMatch("fr_FR"); |
| assertEquals("getBestMatch(fr_FR)", "fr", locString(best)); |
| best = matcher.getBestMatch("ja_JP"); |
| assertEquals("getBestMatch(ja_JP)", "de", locString(best)); |
| LocaleMatcher.Result result = matcher.getBestMatchResult(new ULocale("ja_JP")); |
| assertEquals("getBestMatchResult(ja_JP).supp", |
| "de", locString(result.getSupportedULocale())); |
| assertEquals("getBestMatchResult(ja_JP).suppIndex", |
| -1, result.getSupportedIndex()); |
| } |
| |
| @Test |
| public void testNoDefault() { |
| // We want null instead of any default locale. |
| List<ULocale> locales = Arrays.asList( |
| new ULocale("fr"), new ULocale("en_GB"), new ULocale("en")); |
| LocaleMatcher matcher = LocaleMatcher.builder(). |
| setSupportedULocales(locales). |
| setNoDefaultLocale(). |
| build(); |
| ULocale best = matcher.getBestMatch("en_GB"); |
| assertEquals("getBestMatch(en_GB)", "en_GB", locString(best)); |
| best = matcher.getBestMatch("en_US"); |
| assertEquals("getBestMatch(en_US)", "en", locString(best)); |
| best = matcher.getBestMatch("fr_FR"); |
| assertEquals("getBestMatch(fr_FR)", "fr", locString(best)); |
| best = matcher.getBestMatch("ja_JP"); |
| assertEquals("getBestMatch(ja_JP)", "(null)", locString(best)); |
| LocaleMatcher.Result result = matcher.getBestMatchResult(new ULocale("ja_JP")); |
| assertEquals("getBestMatchResult(ja_JP).supp", |
| "(null)", locString(result.getSupportedULocale())); |
| assertEquals("getBestMatchResult(ja_JP).suppIndex", |
| -1, result.getSupportedIndex()); |
| } |
| |
| @Test |
| public void testFallback() { |
| // check that script fallbacks are handled right |
| final LocaleMatcher matcher = newLocaleMatcher("zh_CN, zh_TW, iw"); |
| assertEquals(new ULocale("zh_TW"), matcher.getBestMatch("zh_Hant")); |
| assertEquals(new ULocale("zh_CN"), matcher.getBestMatch("zh")); |
| assertEquals(new ULocale("zh_CN"), matcher.getBestMatch("zh_Hans_CN")); |
| assertEquals(new ULocale("zh_TW"), matcher.getBestMatch("zh_Hant_HK")); |
| assertEquals(new ULocale("iw"), matcher.getBestMatch("iw_IT")); |
| } |
| |
| @Test |
| public void testSpecials() { |
| // check that nearby languages are handled |
| final LocaleMatcher matcher = newLocaleMatcher("en, fil, ro, nn"); |
| assertEquals(new ULocale("fil"), matcher.getBestMatch("tl")); |
| assertEquals(new ULocale("ro"), matcher.getBestMatch("mo")); |
| assertEquals(new ULocale("nn"), matcher.getBestMatch("nb")); |
| // make sure default works |
| assertEquals(new ULocale("en"), matcher.getBestMatch("ja")); |
| } |
| |
| @Test |
| public void testRegionalSpecials() { |
| // verify that en_AU is closer to en_GB than to en (which is en_US) |
| final LocaleMatcher matcher = newLocaleMatcher("en, en_GB, es, es_419"); |
| assertEquals("es_MX in {en, en_GB, es, es_419}", new ULocale("es_419"), matcher.getBestMatch("es_MX")); |
| assertEquals("en_AU in {en, en_GB, es, es_419}", new ULocale("en_GB"), matcher.getBestMatch("en_AU")); |
| assertEquals("es_ES in {en, en_GB, es, es_419}", new ULocale("es"), matcher.getBestMatch("es_ES")); |
| } |
| |
| @Test |
| public void testHK() { |
| // HK and MO are closer to each other for Hant than to TW |
| final LocaleMatcher matcher = newLocaleMatcher("zh, zh_TW, zh_MO"); |
| assertEquals("zh_HK in {zh, zh_TW, zh_MO}", ZH_MO, matcher.getBestMatch("zh_HK")); |
| final LocaleMatcher matcher2 = newLocaleMatcher("zh, zh_TW, zh_HK"); |
| assertEquals("zh_MO in {zh, zh_TW, zh_HK}", ZH_HK, matcher2.getBestMatch("zh_MO")); |
| } |
| |
| @Test |
| public void TestLocaleMatcherCoverage() { |
| // Add tests for better code coverage |
| LocaleMatcher matcher = newLocaleMatcher(LocalePriorityList.add(null, 0).build()); |
| logln(matcher.toString()); |
| } |
| |
| private void assertEquals(Object expected, Object string) { |
| assertEquals("", expected, string); |
| } |
| |
| private void assertNull(Object bestMatch) { |
| assertNull("", bestMatch); |
| } |
| |
| @Test |
| public void testEmpty() { |
| final LocaleMatcher matcher = LocaleMatcher.builder().build(); |
| assertNull(matcher.getBestMatch(ULocale.FRENCH)); |
| LocaleMatcher.Result result = matcher.getBestMatchResult(ULocale.FRENCH); |
| assertNull(result.getDesiredULocale()); |
| assertNull(result.getDesiredLocale()); |
| assertEquals(-1, result.getDesiredIndex()); |
| assertNull(result.getSupportedULocale()); |
| assertNull(result.getSupportedLocale()); |
| assertEquals(-1, result.getSupportedIndex()); |
| } |
| |
| static final ULocale ENGLISH_CANADA = new ULocale("en_CA"); |
| |
| private static double match(ULocale a, ULocale b) { |
| final LocaleMatcher matcher = new LocaleMatcher(""); |
| return matcher.match(a, null, b, null); |
| } |
| |
| @Test |
| public void testMatch_exact() { |
| assertEquals(1.0, match(ENGLISH_CANADA, ENGLISH_CANADA)); |
| } |
| |
| @Test |
| public void testMatch_none() { |
| double match = match(new ULocale("ar_MK"), ENGLISH_CANADA); |
| assertTrue("Actual >= 0: " + match, 0 <= match); |
| assertTrue("Actual < 0.2 (~ language + script distance): " + match, 0.2 > match); |
| } |
| |
| @Test |
| public void testMatch_matchOnMaximized() { |
| ULocale undTw = new ULocale("und_TW"); |
| ULocale zhHant = new ULocale("zh_Hant"); |
| double matchZh = match(undTw, new ULocale("zh")); |
| double matchZhHant = match(undTw, zhHant); |
| assertTrue("und_TW should be closer to zh_Hant (" + matchZhHant + |
| ") than to zh (" + matchZh + ")", |
| matchZh < matchZhHant); |
| double matchEnHantTw = match(new ULocale("en_Hant_TW"), zhHant); |
| assertTrue("zh_Hant should be closer to und_TW (" + matchZhHant + |
| ") than to en_Hant_TW (" + matchEnHantTw + ")", |
| matchEnHantTw < matchZhHant); |
| assertTrue("zh should be closer to und_TW (" + matchZh + |
| ") than to en_Hant_TW (" + matchEnHantTw + ")", |
| matchEnHantTw < matchZh); |
| } |
| |
| @Test |
| public void testResolvedLocale() { |
| LocaleMatcher matcher = LocaleMatcher.builder(). |
| addSupportedULocale(new ULocale("ar-EG")). |
| build(); |
| ULocale desired = new ULocale("ar-SA-u-nu-latn"); |
| LocaleMatcher.Result result = matcher.getBestMatchResult(desired); |
| assertEquals("best", "ar_EG", result.getSupportedLocale().toString()); |
| ULocale resolved = result.makeResolvedULocale(); |
| assertEquals("ar-EG + ar-SA-u-nu-latn = ar-SA-u-nu-latn", |
| "ar-SA-u-nu-latn", |
| resolved.toLanguageTag()); |
| } |
| |
| @Test |
| public void testMatchGrandfatheredCode() { |
| final LocaleMatcher matcher = newLocaleMatcher("fr, i_klingon, en_Latn_US"); |
| assertEquals("en_Latn_US", matcher.getBestMatch("en_GB_oed").toString()); |
| // assertEquals("tlh", matcher.getBestMatch("i_klingon").toString()); |
| } |
| |
| @Test |
| public void testGetBestMatchForList_exactMatch() { |
| final LocaleMatcher matcher = newLocaleMatcher("fr, en_GB, ja, es_ES, es_MX"); |
| assertEquals("ja", matcher.getBestMatch("ja, de").toString()); |
| } |
| |
| @Test |
| public void testGetBestMatchForList_simpleVariantMatch() { |
| final LocaleMatcher matcher = newLocaleMatcher("fr, en_GB, ja, es_ES, es_MX"); |
| // Intentionally avoiding a perfect_match or two candidates for variant |
| // matches. |
| assertEquals("en_GB", matcher.getBestMatch("de, en_US").toString()); |
| // Fall back. |
| assertEquals("fr", matcher.getBestMatch("de, zh").toString()); |
| } |
| |
| @Test |
| public void testGetBestMatchForList_matchOnMaximized() { |
| final LocaleMatcher matcher = newLocaleMatcher("en, ja"); |
| // final LocaleMatcher matcher = |
| // newLocaleMatcher("fr, en, ja, es_ES, es_MX"); |
| // Check that if the preference is maximized already, it works as well. |
| assertEquals("Match for ja_Jpan_JP (maximized already)", |
| "ja", matcher.getBestMatch("ja_Jpan_JP, en-AU").toString()); |
| if (true) |
| return; |
| // ja_JP matches ja on likely subtags, and it's listed first, thus it |
| // wins over |
| // thus it wins over the second preference en_GB. |
| assertEquals("Match for ja_JP, with likely region subtag", |
| "ja", matcher.getBestMatch("ja_JP, en_US").toString()); |
| // Check that if the preference is maximized already, it works as well. |
| assertEquals("Match for ja_Jpan_JP (maximized already)", |
| "ja", matcher.getBestMatch("ja_Jpan_JP, en_US").toString()); |
| } |
| |
| @Test |
| public void testGetBestMatchForList_noMatchOnMaximized() { |
| // Regression test for http://b/5714572 . |
| final LocaleMatcher matcher = newLocaleMatcher("en, de, fr, ja"); |
| // de maximizes to de_DE. Pick the exact match for the secondary |
| // language instead. |
| assertEquals("de", matcher.getBestMatch("de_CH, fr").toString()); |
| } |
| |
| @Test |
| public void testBestMatchForTraditionalChinese() { |
| // Scenario: An application that only supports Simplified Chinese (and |
| // some other languages), |
| // but does not support Traditional Chinese. zh_Hans_CN could be |
| // replaced with zh_CN, zh, or |
| // zh_Hans, it wouldn't make much of a difference. |
| final LocaleMatcher matcher = newLocaleMatcher("fr, zh_Hans_CN, en_US"); |
| |
| // The script distance (simplified vs. traditional Han) is considered |
| // small enough |
| // to be an acceptable match. The regional difference is considered |
| // almost insignificant. |
| assertEquals("zh_Hans_CN", matcher.getBestMatch("zh_TW").toString()); |
| assertEquals("zh_Hans_CN", matcher.getBestMatch("zh_Hant").toString()); |
| |
| // For geo_political reasons, you might want to avoid a zh_Hant -> |
| // zh_Hans match. |
| // In this case, if zh_TW, zh_HK or a tag starting with zh_Hant is |
| // requested, you can |
| // change your call to getBestMatch to include a 2nd language |
| // preference. |
| // "en" is a better match since its distance to "en_US" is closer than |
| // the distance |
| // from "zh_TW" to "zh_CN" (script distance). |
| assertEquals("en_US", matcher.getBestMatch("zh_TW, en").toString()); |
| assertEquals("en_US", matcher.getBestMatch("zh_Hant_CN, en").toString()); |
| assertEquals("zh_Hans_CN", matcher.getBestMatch("zh_Hans, en").toString()); |
| } |
| |
| @Test |
| public void testUndefined() { |
| // When the undefined language doesn't match anything in the list, |
| // getBestMatch returns |
| // the default, as usual. |
| LocaleMatcher matcher = newLocaleMatcher("it,fr"); |
| assertEquals("it", matcher.getBestMatch("und").toString()); |
| |
| // When it *does* occur in the list, BestMatch returns it, as expected. |
| matcher = newLocaleMatcher("it,und"); |
| assertEquals("", matcher.getBestMatch("und").toString()); |
| |
| // The unusual part: |
| // max("und") = "en_Latn_US", and since matching is based on maximized |
| // tags, the undefined |
| // language would normally match English. But that would produce the |
| // counterintuitive results |
| // that getBestMatch("und", LocaleMatcher("it,en")) would be "en", and |
| // getBestMatch("en", LocaleMatcher("it,und")) would be "und". |
| // |
| // To avoid that, we change the matcher's definitions of max |
| // (AddLikelySubtagsWithDefaults) |
| // so that max("und")="und". That produces the following, more desirable |
| // results: |
| matcher = newLocaleMatcher("it,en"); |
| assertEquals("it", matcher.getBestMatch("und").toString()); |
| matcher = newLocaleMatcher("it,und"); |
| assertEquals("it", matcher.getBestMatch("en").toString()); |
| } |
| |
| @Test |
| public void testGetBestMatch_googlePseudoLocales() { |
| // Google pseudo locales are primarily based on variant subtags. |
| // (See below for the region code based fall back options.) |
| final LocaleMatcher matcher = newLocaleMatcher( |
| "fr, pt"); |
| assertEquals("fr", matcher.getBestMatch("de").toString()); |
| assertEquals("fr", matcher.getBestMatch("en_US").toString()); |
| assertEquals("fr", matcher.getBestMatch("en").toString()); |
| assertEquals("pt", matcher.getBestMatch("pt_BR").toString()); |
| } |
| |
| @Test |
| public void testGetBestMatch_regionDistance() { |
| LocaleMatcher matcher = newLocaleMatcher("es_AR, es"); |
| assertEquals("es_AR", matcher.getBestMatch("es_MX").toString()); |
| |
| matcher = newLocaleMatcher("fr, en, en_GB"); |
| assertEquals("en_GB", matcher.getBestMatch("en_CA").toString()); |
| |
| matcher = newLocaleMatcher("de_AT, de_DE, de_CH"); |
| assertEquals("de_DE", matcher.getBestMatch("de").toString()); |
| |
| showDistance(matcher, "en", "en_CA"); |
| showDistance(matcher, "en_CA", "en"); |
| showDistance(matcher, "en_US", "en_CA"); |
| showDistance(matcher, "en_CA", "en_US"); |
| showDistance(matcher, "en_GB", "en_CA"); |
| showDistance(matcher, "en_CA", "en_GB"); |
| showDistance(matcher, "en", "en_UM"); |
| showDistance(matcher, "en_UM", "en"); |
| } |
| |
| private void showDistance(LocaleMatcher matcher, String desired, String supported) { |
| ULocale desired2 = new ULocale(desired); |
| ULocale supported2 = new ULocale(supported); |
| double distance = matcher.match(desired2, ULocale.addLikelySubtags(desired2), supported2, ULocale.addLikelySubtags(supported2)); |
| logln(desired + " to " + supported + " :\t" + distance); |
| } |
| |
| /** |
| * If all the base languages are the same, then each sublocale matches |
| * itself most closely |
| */ |
| @Test |
| public void testExactMatches() { |
| String lastBase = ""; |
| TreeSet<ULocale> sorted = new TreeSet<>(); |
| for (ULocale loc : ULocale.getAvailableLocales()) { |
| String language = loc.getLanguage(); |
| if (!lastBase.equals(language)) { |
| check(sorted); |
| sorted.clear(); |
| lastBase = language; |
| } |
| sorted.add(loc); |
| } |
| check(sorted); |
| } |
| |
| private void check(Set<ULocale> sorted) { |
| if (sorted.isEmpty()) { |
| return; |
| } |
| check2(sorted); |
| ULocale first = sorted.iterator().next(); |
| ULocale max = ULocale.addLikelySubtags(first); |
| sorted.add(max); |
| check2(sorted); |
| } |
| |
| private static final ULocale posix = new ULocale("en_US_POSIX"); |
| |
| /** |
| * @param sorted |
| */ |
| private void check2(Set<ULocale> sorted) { |
| logln("Checking: " + sorted); |
| LocaleMatcher matcher = newLocaleMatcher( |
| LocalePriorityList.add( |
| sorted.toArray(new ULocale[sorted.size()])) |
| .build()); |
| for (ULocale loc : sorted) { |
| // The result may not be the exact same locale, but it must be equivalent. |
| // Variants and extensions are ignored. |
| if (loc.equals(posix)) { continue; } |
| ULocale max = ULocale.addLikelySubtags(loc); |
| ULocale best = matcher.getBestMatch(loc); |
| ULocale maxBest = ULocale.addLikelySubtags(best); |
| assertEquals(loc.toString(), max, maxBest); |
| } |
| } |
| |
| @Test |
| public void testAsymmetry() { |
| LocaleMatcher matcher; |
| matcher = new LocaleMatcher("mul, nl"); |
| assertEquals("nl", matcher.getBestMatch("af").toString()); // af => nl |
| |
| matcher = new LocaleMatcher("mul, af"); |
| assertEquals("mul", matcher.getBestMatch("nl").toString()); // but nl !=> af |
| } |
| |
| |
| @Test |
| public void testGetBestMatchForList_matchOnMaximized2() { |
| final LocaleMatcher matcher = newLocaleMatcher("fr, en-GB, ja, es-ES, es-MX"); |
| // ja-JP matches ja on likely subtags, and it's listed first, thus it wins over |
| // thus it wins over the second preference en-GB. |
| assertEquals("Match for ja-JP, with likely region subtag", |
| "ja", matcher.getBestMatch("ja-JP, en-GB").toString()); |
| // Check that if the preference is maximized already, it works as well. |
| assertEquals("Match for ja-Jpan-JP (maximized already)", |
| "ja", matcher.getBestMatch("ja-Jpan-JP, en-GB").toString()); |
| } |
| |
| @Test |
| public void testGetBestMatchForList_closeEnoughMatchOnMaximized() { |
| final LocaleMatcher matcher = newLocaleMatcher("en-GB, en, de, fr, ja"); |
| assertEquals("de", matcher.getBestMatch("de-CH, fr").toString()); |
| assertEquals("en", matcher.getBestMatch("en-US, ar, nl, de, ja").toString()); |
| } |
| |
| @Test |
| public void testGetBestMatchForPortuguese() { |
| final LocaleMatcher withPTExplicit = newLocaleMatcher("pt_PT, pt_BR, es, es_419"); |
| final LocaleMatcher withPTImplicit = newLocaleMatcher("pt_PT, pt, es, es_419"); |
| // Could happen because "pt_BR" is a tier_1 language and "pt_PT" is tier_2. |
| |
| final LocaleMatcher withoutPT = newLocaleMatcher("pt_BR, es, es_419"); |
| // European user who prefers Spanish over Brazilian Portuguese as a fallback. |
| |
| assertEquals("pt_PT", withPTExplicit.getBestMatch("pt_PT, es, pt").toString()); |
| assertEquals("pt_PT", withPTImplicit.getBestMatch("pt_PT, es, pt").toString()); |
| // The earlier pt_PT vs. pt_BR region mismatch is as good as the later es perfect match |
| // because of the demotion per desired locale. |
| assertEquals("pt_BR", withoutPT.getBestMatch("pt_PT, es, pt").toString()); |
| |
| // Brazilian user who prefers South American Spanish over European Portuguese as a fallback. |
| // The asymmetry between this case and above is because it's "pt_PT" that's missing between the |
| // matchers as "pt_BR" is a much more common language. |
| assertEquals("pt_BR", withPTExplicit.getBestMatch("pt, es_419, pt_PT").toString()); |
| assertEquals("pt", withPTImplicit.getBestMatch("pt, es_419, pt_PT").toString()); |
| assertEquals("pt_BR", withoutPT.getBestMatch("pt, es_419, pt_PT").toString()); |
| |
| // Code that adds the user's country can get "pt_US" for a user's language. |
| // That should fall back to "pt_BR". |
| assertEquals("pt_BR", withPTExplicit.getBestMatch("pt_US, pt_PT").toString()); |
| assertEquals("pt", withPTImplicit.getBestMatch("pt_US, pt_PT").toString()); |
| } |
| |
| @Test |
| public void testVariantWithScriptMatch() { |
| final LocaleMatcher matcher = newLocaleMatcher("fr, en, sv"); |
| assertEquals("en", matcher.getBestMatch("en-GB").toString()); |
| assertEquals("en", matcher.getBestMatch("en-GB, sv").toString()); |
| } |
| |
| @Test |
| public void testVariantWithScriptMatch2() { |
| final LocaleMatcher matcher = newLocaleMatcher("en, sv"); |
| assertEquals("en", matcher.getBestMatch("en-GB, sv").toString()); |
| } |
| |
| @Test |
| public void Test8288() { |
| final LocaleMatcher matcher = newLocaleMatcher("it, en"); |
| assertEquals("it", matcher.getBestMatch("und").toString()); |
| assertEquals("en", matcher.getBestMatch("und, en").toString()); |
| } |
| |
| @Test |
| public void testDemotion() { |
| LocalePriorityList supported = LocalePriorityList.add("fr, de-CH, it").build(); |
| LocalePriorityList desired = LocalePriorityList.add("fr-CH, de-CH, it").build(); |
| LocaleMatcher noDemotion = LocaleMatcher.builder(). |
| setSupportedULocales(supported.getULocales()). |
| setDemotionPerDesiredLocale(LocaleMatcher.Demotion.NONE).build(); |
| assertEquals("no demotion", new ULocale("de-CH"), noDemotion.getBestMatch(desired)); |
| |
| LocaleMatcher regionDemotion = LocaleMatcher.builder(). |
| setSupportedULocales(supported.getULocales()). |
| setDemotionPerDesiredLocale(LocaleMatcher.Demotion.REGION).build(); |
| assertEquals("region demotion", ULocale.FRENCH, regionDemotion.getBestMatch(desired)); |
| } |
| |
| @Test |
| public void testDirection() { |
| List<ULocale> desired = Arrays.asList(new ULocale("arz-EG"), new ULocale("nb-DK")); |
| LocaleMatcher.Builder builder = |
| LocaleMatcher.builder().setSupportedLocales("ar, nn"); |
| // arz is a close one-way match to ar, and the region matches. |
| // (Egyptian Arabic vs. Arabic) |
| LocaleMatcher withOneWay = builder.build(); |
| assertEquals("with one-way", "ar", withOneWay.getBestMatch(desired).toString()); |
| // nb is a less close two-way match to nn, and the regions differ. |
| // (Norwegian Bokmal vs. Nynorsk) |
| LocaleMatcher onlyTwoWay = builder.setDirection(LocaleMatcher.Direction.ONLY_TWO_WAY).build(); |
| assertEquals("only two-way", "nn", onlyTwoWay.getBestMatch(desired).toString()); |
| } |
| |
| @Test |
| public void testMaxDistanceAndIsMatch() { |
| LocaleMatcher.Builder builder = LocaleMatcher.builder(); |
| LocaleMatcher standard = builder.build(); |
| ULocale germanLux = new ULocale("de-LU"); |
| ULocale germanPhoenician = new ULocale("de-Phnx-AT"); |
| ULocale greek = new ULocale("el"); |
| assertTrue("standard de-LU / de", standard.isMatch(germanLux, ULocale.GERMAN)); |
| assertFalse("standard de-Phnx-AT / de", standard.isMatch(germanPhoenician, ULocale.GERMAN)); |
| |
| // Allow a script difference to still match. |
| LocaleMatcher loose = builder.setMaxDistance(germanPhoenician, ULocale.GERMAN).build(); |
| assertTrue("loose de-LU / de", loose.isMatch(germanLux, ULocale.GERMAN)); |
| assertTrue("loose de-Phnx-AT / de", loose.isMatch(germanPhoenician, ULocale.GERMAN)); |
| assertFalse("loose el / de", loose.isMatch(greek, ULocale.GERMAN)); |
| |
| // Allow at most a regional difference. |
| LocaleMatcher regional = builder.setMaxDistance(new Locale("de", "AT"), Locale.GERMAN).build(); |
| assertTrue("regional de-LU / de", regional.isMatch(new Locale("de", "LU"), Locale.GERMAN)); |
| assertFalse("regional da / no", regional.isMatch(new Locale("da"), new Locale("no"))); |
| assertFalse("regional zh-Hant / zh", regional.isMatch(Locale.CHINESE, Locale.TRADITIONAL_CHINESE)); |
| } |
| |
| @Test |
| public void testCanonicalize() { |
| LocaleMatcher matcher = LocaleMatcher.builder().build(); |
| assertEquals("bh --> bho", new ULocale("bho"), matcher.canonicalize(new ULocale("bh"))); |
| assertEquals("mo-200 --> ro-CZ", new ULocale("ro_CZ"), |
| matcher.canonicalize(new ULocale("mo_200"))); |
| } |
| |
| private static final class PerfCase { |
| ULocale desired; |
| ULocale expectedShort; |
| ULocale expectedLong; |
| ULocale expectedVeryLong; |
| |
| PerfCase(String des, String expShort, String expLong, String expVeryLong) { |
| desired = new ULocale(des); |
| expectedShort = new ULocale(expShort); |
| expectedLong = new ULocale(expLong); |
| expectedVeryLong = new ULocale(expVeryLong); |
| } |
| } |
| |
| private static final int WARM_UP_ITERATIONS = 1000; |
| private static final int BENCHMARK_ITERATIONS = 20000; |
| |
| @Test |
| public void testPerf() { |
| final String shortList = "en, sv"; |
| final String longList = "af, am, ar, az, be, bg, bn, bs, ca, cs, cy, cy, da, de, " + |
| "el, en, en-GB, es, es-419, et, eu, fa, fi, fil, fr, ga, gl, gu, " + |
| "hi, hr, hu, hy, id, is, it, iw, ja, ka, kk, km, kn, ko, ky, lo, lt, lv, " + |
| "mk, ml, mn, mr, ms, my, ne, nl, no, pa, pl, pt, pt-PT, ro, ru, " + |
| "si, sk, sl, sq, sr, sr-Latn, sv, sw, ta, te, th, tr, uk, ur, uz, vi, " + |
| "zh-CN, zh-TW, zu"; |
| final String veryLongList = "af, af_NA, af_ZA, agq, agq_CM, ak, ak_GH, am, am_ET, " + |
| "ar, ar_001, ar_AE, ar_BH, ar_DJ, ar_DZ, ar_EG, ar_EH, ar_ER, ar_IL, ar_IQ, " + |
| "ar_JO, ar_KM, ar_KW, ar_LB, ar_LY, ar_MA, ar_MR, ar_OM, ar_PS, ar_QA, " + |
| "ar_SA, ar_SD, ar_SO, ar_SS, ar_SY, ar_TD, ar_TN, ar_YE, as, as_IN, asa, asa_TZ, " + |
| "ast, ast_ES, az, az_Cyrl, az_Cyrl_AZ, az_Latn, az_Latn_AZ, " + |
| "bas, bas_CM, be, be_BY, bem, bem_ZM, bez, bez_TZ, bg, bg_BG, bm, bm_ML, " + |
| "bn, bn_BD, bn_IN, bo, bo_CN, bo_IN, br, br_FR, brx, brx_IN, " + |
| "bs, bs_Cyrl, bs_Cyrl_BA, bs_Latn, bs_Latn_BA, ca, ca_AD, ca_ES, ca_ES_VALENCIA, " + |
| "ca_FR, ca_IT, ce, ce_RU, cgg, cgg_UG, chr, chr_US, ckb, ckb_IQ, ckb_IR, cs, cs_CZ, " + |
| "cu, cu_RU, cy, cy_GB, da, da_DK, da_GL, dav, dav_KE, de, de_AT, de_BE, de_CH, " + |
| "de_DE, de_LI, de_LU, dje, dje_NE, dsb, dsb_DE, dua, dua_CM, dyo, dyo_SN, dz, dz_BT, " + |
| // removed en_001 to avoid exact match |
| "ebu, ebu_KE, ee, ee_GH, ee_TG, el, el_CY, el_GR, en, en_150, " + |
| "en_AG, en_AI, en_AS, en_AT, en_AU, en_BB, en_BE, en_BI, en_BM, en_BS, en_BW, " + |
| "en_BZ, en_CA, en_CC, en_CH, en_CK, en_CM, en_CX, en_CY, en_DE, en_DG, en_DK, " + |
| "en_DM, en_ER, en_FI, en_FJ, en_FK, en_FM, en_GB, en_GD, en_GG, en_GH, en_GI, " + |
| "en_GM, en_GU, en_GY, en_HK, en_IE, en_IL, en_IM, en_IN, en_IO, en_JE, en_JM, " + |
| "en_KE, en_KI, en_KN, en_KY, en_LC, en_LR, en_LS, en_MG, en_MH, en_MO, en_MP, " + |
| "en_MS, en_MT, en_MU, en_MW, en_MY, en_NA, en_NF, en_NG, en_NL, en_NR, en_NU, " + |
| "en_NZ, en_PG, en_PH, en_PK, en_PN, en_PR, en_PW, en_RW, en_SB, en_SC, en_SD, " + |
| "en_SE, en_SG, en_SH, en_SI, en_SL, en_SS, en_SX, en_SZ, en_TC, en_TK, en_TO, " + |
| "en_TT, en_TV, en_TZ, en_UG, en_UM, en_US, en_US_POSIX, en_VC, en_VG, en_VI, " + |
| "en_VU, en_WS, en_ZA, en_ZM, en_ZW, eo, eo_001, es, es_419, es_AR, es_BO, es_CL, " + |
| "es_CO, es_CR, es_CU, es_DO, es_EA, es_EC, es_ES, es_GQ, es_GT, es_HN, es_IC, " + |
| "es_MX, es_NI, es_PA, es_PE, es_PH, es_PR, es_PY, es_SV, es_US, es_UY, es_VE, " + |
| "et, et_EE, eu, eu_ES, ewo, ewo_CM, fa, fa_AF, fa_IR, ff, ff_CM, ff_GN, ff_MR, " + |
| "ff_SN, fi, fi_FI, fil, fil_PH, fo, fo_DK, fo_FO, fr, fr_BE, fr_BF, fr_BI, fr_BJ, " + |
| "fr_BL, fr_CA, fr_CD, fr_CF, fr_CG, fr_CH, fr_CI, fr_CM, fr_DJ, fr_DZ, " + |
| "fr_FR, fr_GA, fr_GF, fr_GN, fr_GP, fr_GQ, fr_HT, fr_KM, fr_LU, fr_MA, fr_MC, " + |
| "fr_MF, fr_MG, fr_ML, fr_MQ, fr_MR, fr_MU, fr_NC, fr_NE, fr_PF, fr_PM, fr_RE, " + |
| "fr_RW, fr_SC, fr_SN, fr_SY, fr_TD, fr_TG, fr_TN, fr_VU, fr_WF, fr_YT, " + |
| "fur, fur_IT, fy, fy_NL, ga, ga_IE, gd, gd_GB, gl, gl_ES, gsw, gsw_CH, gsw_FR, " + |
| "gsw_LI, gu, gu_IN, guz, guz_KE, gv, gv_IM, ha, ha_GH, ha_NE, ha_NG, haw, haw_US, " + |
| "he, he_IL, hi, hi_IN, hr, hr_BA, hr_HR, hsb, hsb_DE, hu, hu_HU, hy, hy_AM, " + |
| "id, id_ID, ig, ig_NG, ii, ii_CN, is, is_IS, it, it_CH, it_IT, it_SM, ja, ja_JP, " + |
| "jgo, jgo_CM, jmc, jmc_TZ, ka, ka_GE, kab, kab_DZ, kam, kam_KE, kde, kde_TZ, " + |
| "kea, kea_CV, khq, khq_ML, ki, ki_KE, kk, kk_KZ, kkj, kkj_CM, kl, kl_GL, " + |
| "kln, kln_KE, km, km_KH, kn, kn_IN, ko, ko_KP, ko_KR, kok, kok_IN, " + |
| "ks, ks_IN, ksb, ksb_TZ, ksf, ksf_CM, ksh, ksh_DE, kw, kw_GB, ky, ky_KG, " + |
| "lag, lag_TZ, lb, lb_LU, lg, lg_UG, lkt, lkt_US, ln, ln_AO, ln_CD, ln_CF, ln_CG, " + |
| "lo, lo_LA, lrc, lrc_IQ, lrc_IR, lt, lt_LT, lu, lu_CD, luo, luo_KE, luy, luy_KE, " + |
| "lv, lv_LV, mas, mas_KE, mas_TZ, mer, mer_KE, mfe, mfe_MU, mg, mg_MG, " + |
| "mgh, mgh_MZ, mgo, mgo_CM, mk, mk_MK, ml, ml_IN, mn, mn_MN, mr, mr_IN, ms, ms_BN, " + |
| "ms_MY, ms_SG, mt, mt_MT, mua, mua_CM, my, my_MM, mzn, mzn_IR, naq, naq_NA, " + |
| "nb, nb_NO, nb_SJ, nd, nd_ZW, ne, ne_IN, ne_NP, nl, nl_AW, nl_BE, nl_BQ, nl_CW, " + |
| "nl_NL, nl_SR, nl_SX, nmg, nmg_CM, nn, nn_NO, nnh, nnh_CM, nus, nus_SS, nyn, " + |
| "nyn_UG, om, om_ET, om_KE, or, or_IN, os, os_GE, os_RU, pa, pa_Arab, pa_Arab_PK, " + |
| "pa_Guru, pa_Guru_IN, pl, pl_PL, prg, prg_001, ps, ps_AF, pt, pt_AO, pt_BR, " + |
| "pt_CV, pt_GW, pt_MO, pt_MZ, pt_PT, pt_ST, pt_TL, qu, qu_BO, qu_EC, qu_PE, rm, " + |
| "rm_CH, rn, rn_BI, ro, ro_MD, ro_RO, rof, rof_TZ, root, ru, ru_BY, ru_KG, ru_KZ, " + |
| "ru_MD, ru_RU, ru_UA, rw, rw_RW, rwk, rwk_TZ, sah, sah_RU, saq, saq_KE, sbp, " + |
| "sbp_TZ, se, se_FI, se_NO, se_SE, seh, seh_MZ, ses, ses_ML, sg, sg_CF, shi, " + |
| "shi_Latn, shi_Latn_MA, shi_Tfng, shi_Tfng_MA, si, si_LK, sk, sk_SK, sl, sl_SI, " + |
| "smn, smn_FI, sn, sn_ZW, so, so_DJ, so_ET, so_KE, so_SO, sq, sq_AL, sq_MK, sq_XK, " + |
| "sr, sr_Cyrl, sr_Cyrl_BA, sr_Cyrl_ME, sr_Cyrl_RS, sr_Cyrl_XK, sr_Latn, " + |
| "sr_Latn_BA, sr_Latn_ME, sr_Latn_RS, sr_Latn_XK, sv, sv_AX, sv_FI, sv_SE, sw, " + |
| "sw_CD, sw_KE, sw_TZ, sw_UG, ta, ta_IN, ta_LK, ta_MY, ta_SG, te, te_IN, teo, " + |
| "teo_KE, teo_UG, th, th_TH, ti, ti_ER, ti_ET, tk, tk_TM, to, to_TO, tr, tr_CY, " + |
| "tr_TR, twq, twq_NE, tzm, tzm_MA, ug, ug_CN, uk, uk_UA, ur, ur_IN, ur_PK, uz, " + |
| "uz_Arab, uz_Arab_AF, uz_Cyrl, uz_Cyrl_UZ, uz_Latn, uz_Latn_UZ, vai, vai_Latn, " + |
| "vai_Latn_LR, vai_Vaii, vai_Vaii_LR, vi, vi_VN, vo, vo_001, vun, vun_TZ, wae, " + |
| "wae_CH, xog, xog_UG, yav, yav_CM, yi, yi_001, yo, yo_BJ, yo_NG, zgh, zgh_MA, " + |
| "zh, zh_Hans, zh_Hans_CN, zh_Hans_HK, zh_Hans_MO, zh_Hans_SG, zh_Hant, " + |
| "zh_Hant_HK, zh_Hant_MO, zh_Hant_TW, zu, zu_ZA"; |
| |
| final LocaleMatcher matcherShort = newLocaleMatcher(shortList); |
| final LocaleMatcher matcherLong = newLocaleMatcher(longList); |
| final LocaleMatcher matcherVeryLong = newLocaleMatcher(veryLongList); |
| |
| PerfCase[] pcs = new PerfCase[] { |
| // Exact match in all matchers. |
| new PerfCase("sv", "sv", "sv", "sv"), |
| // Common locale, exact match only in very long list. |
| new PerfCase("fr_CA", "en", "fr", "fr_CA"), |
| // Unusual locale, no exact match. |
| new PerfCase("de_CA", "en", "de", "de"), |
| // World English maps to several region partitions. |
| new PerfCase("en_001", "en", "en", "en"), |
| // Ancient language with interesting subtags. |
| new PerfCase("egy_Copt_CY", "en", "af", "af") |
| }; |
| |
| for (PerfCase pc : pcs) { |
| final ULocale desired = pc.desired; |
| |
| assertEquals(desired.toString(), pc.expectedShort, matcherShort.getBestMatch(desired)); |
| assertEquals(desired.toString(), pc.expectedLong, matcherLong.getBestMatch(desired)); |
| assertEquals(desired.toString(), pc.expectedVeryLong, matcherVeryLong.getBestMatch(desired)); |
| |
| timeLocaleMatcher(desired, matcherShort, WARM_UP_ITERATIONS); |
| timeLocaleMatcher(desired, matcherLong, WARM_UP_ITERATIONS); |
| timeLocaleMatcher(desired, matcherVeryLong, WARM_UP_ITERATIONS); |
| long tns = timeLocaleMatcher(desired, matcherShort, BENCHMARK_ITERATIONS); |
| System.out.format("New Duration (few supported):\t%s\t%d\tnanos\n", desired, tns); |
| long tnl = timeLocaleMatcher(desired, matcherLong, BENCHMARK_ITERATIONS); |
| System.out.format("New Duration (med. supported):\t%s\t%d\tnanos\n", desired, tnl); |
| long tnv = timeLocaleMatcher(desired, matcherVeryLong, BENCHMARK_ITERATIONS); |
| System.out.format("New Duration (many supported):\t%s\t%d\tnanos\n", desired, tnv); |
| } |
| |
| maximizePerf(); |
| } |
| |
| private static long timeLocaleMatcher(ULocale desired, LocaleMatcher matcher, int iterations) { |
| long start = System.nanoTime(); |
| for (int i = iterations; i > 0; --i) { |
| matcher.getBestMatch(desired); |
| } |
| long delta = System.nanoTime() - start; |
| return (delta / iterations); |
| } |
| |
| private void maximizePerf() { |
| final String tags = "af, am, ar, az, be, bg, bn, bs, ca, cs, cy, cy, da, de, " + |
| "el, en, en-GB, es, es-419, et, eu, fa, fi, fil, fr, ga, gl, gu, " + |
| "hi, hr, hu, hy, id, is, it, iw, ja, ka, kk, km, kn, ko, ky, lo, lt, lv, " + |
| "mk, ml, mn, mr, ms, my, ne, nl, no, pa, pl, pt, pt-PT, ro, ru, " + |
| "si, sk, sl, sq, sr, sr-Latn, sv, sw, ta, te, th, tr, uk, ur, uz, vi, " + |
| "zh-CN, zh-TW, zu"; |
| LocalePriorityList list = LocalePriorityList.add(tags).build(); |
| int few = 1000; |
| long t = timeMaximize(list, few); // warm up |
| t = timeMaximize(list, few); // measure for scale |
| long targetTime = 100000000L; // 10^8 ns = 0.1s |
| int iterations = (int)((targetTime * few) / t); |
| t = timeMaximize(list, iterations); |
| int length = 0; |
| for (@SuppressWarnings("unused") ULocale locale : list) { ++length; } |
| System.out.println("maximize: " + (t / iterations / length) + " ns/locale: " + |
| t + " ns / " + iterations + " iterations / " + length + " locales"); |
| } |
| |
| // returns total ns not per iteration |
| private static long timeMaximize(Iterable<ULocale> list, int iterations) { |
| long start = System.nanoTime(); |
| for (int i = iterations; i > 0; --i) { |
| for (ULocale locale : list) { |
| XLikelySubtags.INSTANCE.makeMaximizedLsrFrom(locale); |
| } |
| } |
| return System.nanoTime() - start; |
| } |
| |
| @Test |
| public void testLikelySubtagsLoadedDataSameAsBuiltFromScratch() { |
| XLikelySubtags.Data built = LikelySubtagsBuilder.build(); |
| XLikelySubtags.Data loaded = XLikelySubtags.Data.load(); |
| assertEquals("run LocaleDistanceBuilder and update ICU4C langInfo.txt", built, loaded); |
| } |
| |
| private static final class TestCase implements Cloneable { |
| private static final String ENDL = System.getProperties().getProperty("line.separator"); |
| |
| int lineNr = 0; |
| |
| String nameLine = ""; |
| String supportedLine = ""; |
| String defaultLine = ""; |
| String distanceLine = ""; |
| String thresholdLine = ""; |
| String matchLine = ""; |
| |
| String supported = ""; |
| String def = ""; |
| String favor = ""; |
| String threshold = ""; |
| String desired = ""; |
| String expMatch = ""; |
| String expDesired = ""; |
| String expCombined = ""; |
| |
| @Override |
| public TestCase clone() throws CloneNotSupportedException { |
| return (TestCase) super.clone(); |
| } |
| |
| void reset(String newNameLine) { |
| nameLine = newNameLine; |
| supportedLine = ""; |
| defaultLine = ""; |
| distanceLine = ""; |
| thresholdLine = ""; |
| |
| supported = ""; |
| def = ""; |
| favor = ""; |
| threshold = ""; |
| } |
| |
| String toInputsKey() { |
| return supported + '+' + def + '+' + favor + '+' + threshold + '+' + desired; |
| } |
| |
| private static void appendLine(StringBuilder sb, String line) { |
| if (!line.isEmpty()) { |
| sb.append(ENDL).append(line); |
| } |
| } |
| |
| @Override |
| public String toString() { |
| StringBuilder sb = new StringBuilder(nameLine); |
| appendLine(sb, supportedLine); |
| appendLine(sb, defaultLine); |
| appendLine(sb, distanceLine); |
| appendLine(sb, thresholdLine); |
| sb.append(ENDL).append("line ").append(lineNr).append(':'); |
| appendLine(sb, matchLine); |
| return sb.toString(); |
| } |
| } |
| |
| private static String getSuffixAfterPrefix(String s, int limit, String prefix) { |
| if (prefix.length() <= limit && s.startsWith(prefix)) { |
| return s.substring(prefix.length(), limit); |
| } else { |
| return null; |
| } |
| } |
| |
| // UsedReflectively, not private to avoid unused-warning |
| static List<TestCase> readTestCases() throws Exception { |
| List<TestCase> tests = new ArrayList<>(); |
| Map<String, Integer> uniqueTests = new HashMap<>(); |
| TestCase test = new TestCase(); |
| String filename = "data/localeMatcherTest.txt"; |
| try (BufferedReader in = FileUtilities.openFile(LocaleMatcherTest.class, filename)) { |
| String line; |
| while ((line = in.readLine()) != null) { |
| ++test.lineNr; |
| // Start of comment, or end of line, minus trailing spaces. |
| int limit = line.indexOf('#'); |
| if (limit < 0) { |
| limit = line.length(); |
| } |
| char c; |
| while (limit > 0 && ((c = line.charAt(limit - 1)) == ' ' || c == '\t')) { |
| --limit; |
| } |
| if (limit == 0) { // empty line |
| continue; |
| } |
| String suffix; |
| if (line.startsWith("** test: ")) { |
| test.reset(line); |
| } else if ((suffix = getSuffixAfterPrefix(line, limit, "@supported=")) != null) { |
| test.supportedLine = line; |
| test.supported = suffix; |
| } else if ((suffix = getSuffixAfterPrefix(line, limit, "@default=")) != null) { |
| test.defaultLine = line; |
| test.def = suffix; |
| } else if ((suffix = getSuffixAfterPrefix(line, limit, "@favor=")) != null) { |
| test.distanceLine = line; |
| test.favor = suffix; |
| } else if ((suffix = getSuffixAfterPrefix(line, limit, "@threshold=")) != null) { |
| test.thresholdLine = line; |
| test.threshold = suffix; |
| } else { |
| int matchSep = line.indexOf(">>"); |
| // >> before an inline comment, and followed by more than white space. |
| if (0 <= matchSep && (matchSep + 2) < limit) { |
| test.matchLine = line; |
| test.desired = line.substring(0, matchSep).trim(); |
| test.expDesired = test.expCombined = ""; |
| int start = matchSep + 2; |
| int expLimit = line.indexOf('|', start); |
| if (expLimit < 0) { |
| test.expMatch = line.substring(start, limit).trim(); |
| } else { |
| test.expMatch = line.substring(start, expLimit).trim(); |
| start = expLimit + 1; |
| expLimit = line.indexOf('|', start); |
| if (expLimit < 0) { |
| test.expDesired = line.substring(start, limit).trim(); |
| } else { |
| test.expDesired = line.substring(start, expLimit).trim(); |
| test.expCombined = line.substring(expLimit + 1, limit).trim(); |
| } |
| } |
| String inputs = test.toInputsKey(); |
| Integer prevIndex = uniqueTests.get(inputs); |
| if (prevIndex == null) { |
| uniqueTests.put(inputs, tests.size()); |
| } else { |
| System.out.println("Locale matcher test case on line " + test.lineNr |
| + " is a duplicate of line " + tests.get(prevIndex).lineNr); |
| } |
| tests.add(test.clone()); |
| } else { |
| throw new IllegalArgumentException("test data syntax error on line " |
| + test.lineNr + "\n" + line); |
| } |
| } |
| } |
| } |
| System.out.println("Number of duplicate locale matcher test cases: " + (tests.size() - uniqueTests.size())); |
| return tests; |
| } |
| |
| private static ULocale getULocaleOrNull(String s) { |
| if (s.equals("null")) { |
| return null; |
| } else { |
| return new ULocale(s); |
| } |
| } |
| |
| private static Locale toLocale(ULocale ulocale) { |
| return ulocale != null ? ulocale.toLocale() : null; |
| } |
| |
| private static Iterable<Locale> localesFromULocales(Collection<ULocale> ulocales) { |
| List<Locale> locales = new ArrayList<>(ulocales.size()); |
| for (ULocale ulocale : ulocales) { |
| locales.add(ulocale.toLocale()); |
| } |
| return locales; |
| } |
| |
| @Test |
| @Parameters(method = "readTestCases") |
| public void dataDriven(TestCase test) { |
| LocaleMatcher matcher; |
| if (test.def.isEmpty() && test.favor.isEmpty() && test.threshold.isEmpty()) { |
| matcher = new LocaleMatcher(test.supported); |
| } else { |
| LocaleMatcher.Builder builder = LocaleMatcher.builder(); |
| builder.setSupportedLocales(test.supported); |
| if (!test.def.isEmpty()) { |
| builder.setDefaultULocale(new ULocale(test.def)); |
| } |
| if (!test.favor.isEmpty()) { |
| FavorSubtag favor; |
| switch (test.favor) { |
| case "normal": |
| favor = FavorSubtag.LANGUAGE; |
| break; |
| case "script": |
| favor = FavorSubtag.SCRIPT; |
| break; |
| default: |
| throw new IllegalArgumentException("unsupported FavorSubtag value " + test.favor); |
| } |
| builder.setFavorSubtag(favor); |
| } |
| if (!test.threshold.isEmpty()) { |
| int threshold = Integer.valueOf(test.threshold); |
| builder.internalSetThresholdDistance(threshold); |
| } |
| matcher = builder.build(); |
| } |
| |
| ULocale expMatch = getULocaleOrNull(test.expMatch); |
| if (test.expDesired.isEmpty() && test.expCombined.isEmpty()) { |
| ULocale bestSupported = matcher.getBestMatch(test.desired); |
| assertEquals("bestSupported ULocale from string", expMatch, bestSupported); |
| LocalePriorityList desired = LocalePriorityList.add(test.desired).build(); |
| if (desired.getULocales().size() == 1) { |
| ULocale desiredULocale = desired.iterator().next(); |
| bestSupported = matcher.getBestMatch(desiredULocale); |
| assertEquals("bestSupported ULocale from ULocale", expMatch, bestSupported); |
| Locale desiredLocale = desiredULocale.toLocale(); |
| Locale bestSupportedLocale = matcher.getBestLocale(desiredLocale); |
| assertEquals("bestSupported Locale from Locale", |
| toLocale(expMatch), bestSupportedLocale); |
| |
| LocaleMatcher.Result result = matcher.getBestMatchResult(desiredULocale); |
| assertEquals("result.getSupportedULocale from ULocale", |
| expMatch, result.getSupportedULocale()); |
| assertEquals("result.getSupportedLocale from ULocale", |
| toLocale(expMatch), result.getSupportedLocale()); |
| |
| result = matcher.getBestLocaleResult(desiredLocale); |
| assertEquals("result.getSupportedULocale from Locale", |
| expMatch, result.getSupportedULocale()); |
| assertEquals("result.getSupportedLocale from Locale", |
| toLocale(expMatch), result.getSupportedLocale()); |
| } else { |
| bestSupported = matcher.getBestMatch(desired); |
| assertEquals("bestSupported ULocale from ULocale iterator", |
| expMatch, bestSupported); |
| Locale bestSupportedLocale = matcher.getBestLocale( |
| localesFromULocales(desired.getULocales())); |
| assertEquals("bestSupported Locale from Locale iterator", |
| toLocale(expMatch), bestSupportedLocale); |
| } |
| } else { |
| LocalePriorityList desired = LocalePriorityList.add(test.desired).build(); |
| LocaleMatcher.Result result = matcher.getBestMatchResult(desired); |
| assertEquals("result.getSupportedULocale from ULocales", |
| expMatch, result.getSupportedULocale()); |
| assertEquals("result.getSupportedLocale from ULocales", |
| toLocale(expMatch), result.getSupportedLocale()); |
| if (!test.expDesired.isEmpty()) { |
| ULocale expDesired = getULocaleOrNull(test.expDesired); |
| assertEquals("result.getDesiredULocale from ULocales", |
| expDesired, result.getDesiredULocale()); |
| assertEquals("result.getDesiredLocale from ULocales", |
| toLocale(expDesired), result.getDesiredLocale()); |
| } |
| if (!test.expCombined.isEmpty()) { |
| ULocale expCombined = getULocaleOrNull(test.expCombined); |
| assertEquals("combined ULocale from ULocales", expCombined, result.makeResolvedULocale()); |
| assertEquals("combined Locale from ULocales", toLocale(expCombined), result.makeResolvedLocale()); |
| } |
| |
| result = matcher.getBestLocaleResult(localesFromULocales(desired.getULocales())); |
| assertEquals("result.getSupportedULocale from Locales", |
| expMatch, result.getSupportedULocale()); |
| assertEquals("result.getSupportedLocale from Locales", |
| toLocale(expMatch), result.getSupportedLocale()); |
| if (!test.expDesired.isEmpty()) { |
| ULocale expDesired = getULocaleOrNull(test.expDesired); |
| assertEquals("result.getDesiredULocale from Locales", |
| expDesired, result.getDesiredULocale()); |
| assertEquals("result.getDesiredLocale from Locales", |
| toLocale(expDesired), result.getDesiredLocale()); |
| } |
| if (!test.expCombined.isEmpty()) { |
| ULocale expCombined = getULocaleOrNull(test.expCombined); |
| assertEquals("combined ULocale from Locales", expCombined, result.makeResolvedULocale()); |
| assertEquals("combined Locale from Locales", toLocale(expCombined), result.makeResolvedLocale()); |
| } |
| } |
| } |
| } |
