1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package android.os; 17 18 import android.test.suitebuilder.annotation.SmallTest; 19 20 import java.util.Locale; 21 22 import junit.framework.TestCase; 23 24 public class LocaleListTest extends TestCase { 25 @SmallTest 26 public void testConstructor() throws Exception { 27 LocaleList ll; 28 ll = new LocaleList(Locale.forLanguageTag("fr"), null); 29 assertEquals("fr", ll.toLanguageTags()); 30 31 ll = new LocaleList(Locale.forLanguageTag("fr"), LocaleList.getEmptyLocaleList()); 32 assertEquals("fr", ll.toLanguageTags()); 33 34 ll = new LocaleList(Locale.forLanguageTag("fr"), LocaleList.forLanguageTags("fr")); 35 assertEquals("fr", ll.toLanguageTags()); 36 37 ll = new LocaleList(Locale.forLanguageTag("fr"), LocaleList.forLanguageTags("de")); 38 assertEquals("fr,de", ll.toLanguageTags()); 39 40 ll = new LocaleList(Locale.forLanguageTag("fr"), LocaleList.forLanguageTags("de,ja")); 41 assertEquals("fr,de,ja", ll.toLanguageTags()); 42 43 ll = new LocaleList(Locale.forLanguageTag("fr"), LocaleList.forLanguageTags("de,fr,ja")); 44 assertEquals("fr,de,ja", ll.toLanguageTags()); 45 46 ll = new LocaleList(Locale.forLanguageTag("fr"), LocaleList.forLanguageTags("de,fr")); 47 assertEquals("fr,de", ll.toLanguageTags()); 48 49 ll = new LocaleList(Locale.forLanguageTag("fr"), LocaleList.forLanguageTags("fr,de")); 50 assertEquals("fr,de", ll.toLanguageTags()); 51 } 52 53 @SmallTest 54 public void testConstructor_nullThrows() throws Exception { 55 try { 56 final LocaleList ll = new LocaleList(null, LocaleList.getEmptyLocaleList()); 57 fail("Constructing with locale and locale list should throw with a null locale."); 58 } catch (Throwable e) { 59 assertEquals(NullPointerException.class, e.getClass()); 60 } 61 } 62 63 @SmallTest 64 public void testGetDefault_localeSetDefaultCalledButNoChangeNecessary() throws Exception { 65 final Locale originalLocale = Locale.getDefault(); 66 final LocaleList originalLocaleList = LocaleList.getDefault(); 67 final int originalLocaleIndex = originalLocaleList.indexOf(originalLocale); 68 69 // This simulates a situation potentially set by the system processes 70 LocaleList.setDefault(LocaleList.forLanguageTags("ae,en,ja"), 1 /* en */); 71 72 // check our assumptions about input 73 assertEquals("en", Locale.getDefault().toLanguageTag()); 74 final LocaleList firstResult = LocaleList.getDefault(); 75 assertEquals("ae,en,ja", LocaleList.getDefault().toLanguageTags()); 76 77 Locale.setDefault(Locale.forLanguageTag("ae")); 78 assertSame(firstResult, LocaleList.getDefault()); 79 80 // restore the original values 81 LocaleList.setDefault(originalLocaleList, originalLocaleIndex); 82 } 83 } 84
