1 /* 2 * Copyright (C) 2014 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 17 package com.android.inputmethod.compat; 18 19 import android.graphics.Typeface; 20 import android.os.Build; 21 import android.test.AndroidTestCase; 22 import android.test.suitebuilder.annotation.SmallTest; 23 import android.text.SpannableString; 24 import android.text.Spanned; 25 import android.text.style.StyleSpan; 26 27 import java.util.Locale; 28 29 @SmallTest 30 public class LocaleSpanCompatUtilsTests extends AndroidTestCase { 31 public void testInstantiatable() { 32 if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR1) { 33 // LocaleSpan isn't yet available. 34 return; 35 } 36 assertTrue(LocaleSpanCompatUtils.isLocaleSpanAvailable()); 37 final Object japaneseLocaleSpan = LocaleSpanCompatUtils.newLocaleSpan(Locale.JAPANESE); 38 assertNotNull(japaneseLocaleSpan); 39 assertEquals(Locale.JAPANESE, 40 LocaleSpanCompatUtils.getLocaleFromLocaleSpan(japaneseLocaleSpan)); 41 } 42 43 private static void assertLocaleSpan(final Spanned spanned, final int index, 44 final int expectedStart, final int expectedEnd, 45 final Locale expectedLocale, final int expectedSpanFlags) { 46 final Object span = spanned.getSpans(0, spanned.length(), Object.class)[index]; 47 assertEquals(expectedLocale, LocaleSpanCompatUtils.getLocaleFromLocaleSpan(span)); 48 assertEquals(expectedStart, spanned.getSpanStart(span)); 49 assertEquals(expectedEnd, spanned.getSpanEnd(span)); 50 assertEquals(expectedSpanFlags, spanned.getSpanFlags(span)); 51 } 52 53 private static void assertSpanEquals(final Object expectedSpan, final Spanned spanned, 54 final int index) { 55 final Object[] spans = spanned.getSpans(0, spanned.length(), Object.class); 56 assertEquals(expectedSpan, spans[index]); 57 } 58 59 private static void assertSpanCount(final int expectedCount, final Spanned spanned) { 60 final Object[] spans = spanned.getSpans(0, spanned.length(), Object.class); 61 assertEquals(expectedCount, spans.length); 62 } 63 64 public void testUpdateLocaleSpan() { 65 if (!LocaleSpanCompatUtils.isLocaleSpanAvailable()) { 66 return; 67 } 68 69 // Test if the simplest case works. 70 { 71 final SpannableString text = new SpannableString("0123456789"); 72 LocaleSpanCompatUtils.updateLocaleSpan(text, 1, 5, Locale.JAPANESE); 73 assertSpanCount(1, text); 74 assertLocaleSpan(text, 0, 1, 5, Locale.JAPANESE, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 75 } 76 77 // Test if only LocaleSpans are updated. 78 { 79 final SpannableString text = new SpannableString("0123456789"); 80 final StyleSpan styleSpan = new StyleSpan(Typeface.BOLD); 81 text.setSpan(styleSpan, 0, 7, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 82 LocaleSpanCompatUtils.updateLocaleSpan(text, 1, 5, Locale.JAPANESE); 83 assertSpanCount(2, text); 84 assertSpanEquals(styleSpan, text, 0); 85 assertLocaleSpan(text, 1, 1, 5, Locale.JAPANESE, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 86 } 87 88 // Test if two jointed spans are merged into one span. 89 { 90 final SpannableString text = new SpannableString("0123456789"); 91 text.setSpan(LocaleSpanCompatUtils.newLocaleSpan(Locale.JAPANESE), 1, 3, 92 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 93 LocaleSpanCompatUtils.updateLocaleSpan(text, 3, 5, Locale.JAPANESE); 94 assertSpanCount(1, text); 95 assertLocaleSpan(text, 0, 1, 5, Locale.JAPANESE, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 96 } 97 98 // Test if two overlapped spans are merged into one span. 99 { 100 final SpannableString text = new SpannableString("0123456789"); 101 text.setSpan(LocaleSpanCompatUtils.newLocaleSpan(Locale.JAPANESE), 1, 4, 102 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 103 LocaleSpanCompatUtils.updateLocaleSpan(text, 3, 5, Locale.JAPANESE); 104 assertSpanCount(1, text); 105 assertLocaleSpan(text, 0, 1, 5, Locale.JAPANESE, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 106 } 107 108 // Test if three overlapped spans are merged into one span. 109 { 110 final SpannableString text = new SpannableString("0123456789"); 111 text.setSpan(LocaleSpanCompatUtils.newLocaleSpan(Locale.JAPANESE), 1, 4, 112 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 113 text.setSpan(LocaleSpanCompatUtils.newLocaleSpan(Locale.JAPANESE), 5, 6, 114 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 115 LocaleSpanCompatUtils.updateLocaleSpan(text, 2, 8, Locale.JAPANESE); 116 assertSpanCount(1, text); 117 assertLocaleSpan(text, 0, 1, 8, Locale.JAPANESE, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 118 } 119 120 // Test if disjoint spans remain disjoint. 121 { 122 final SpannableString text = new SpannableString("0123456789"); 123 text.setSpan(LocaleSpanCompatUtils.newLocaleSpan(Locale.JAPANESE), 1, 3, 124 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 125 text.setSpan(LocaleSpanCompatUtils.newLocaleSpan(Locale.JAPANESE), 5, 6, 126 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 127 LocaleSpanCompatUtils.updateLocaleSpan(text, 8, 9, Locale.JAPANESE); 128 assertSpanCount(3, text); 129 assertLocaleSpan(text, 0, 1, 3, Locale.JAPANESE, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 130 assertLocaleSpan(text, 1, 5, 6, Locale.JAPANESE, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 131 assertLocaleSpan(text, 2, 8, 9, Locale.JAPANESE, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 132 } 133 134 // Test if existing span flags are preserved during merge. 135 { 136 final SpannableString text = new SpannableString("0123456789"); 137 text.setSpan(LocaleSpanCompatUtils.newLocaleSpan(Locale.JAPANESE), 1, 5, 138 Spanned.SPAN_INCLUSIVE_INCLUSIVE | Spanned.SPAN_INTERMEDIATE); 139 LocaleSpanCompatUtils.updateLocaleSpan(text, 3, 4, Locale.JAPANESE); 140 assertSpanCount(1, text); 141 assertLocaleSpan(text, 0, 1, 5, Locale.JAPANESE, 142 Spanned.SPAN_INCLUSIVE_INCLUSIVE | Spanned.SPAN_INTERMEDIATE); 143 } 144 145 // Test if existing span flags are preserved even when partially overlapped (leading edge). 146 { 147 final SpannableString text = new SpannableString("0123456789"); 148 text.setSpan(LocaleSpanCompatUtils.newLocaleSpan(Locale.JAPANESE), 1, 5, 149 Spanned.SPAN_INCLUSIVE_INCLUSIVE | Spanned.SPAN_INTERMEDIATE); 150 LocaleSpanCompatUtils.updateLocaleSpan(text, 3, 7, Locale.JAPANESE); 151 assertSpanCount(1, text); 152 assertLocaleSpan(text, 0, 1, 7, Locale.JAPANESE, 153 Spanned.SPAN_INCLUSIVE_EXCLUSIVE | Spanned.SPAN_INTERMEDIATE); 154 } 155 156 // Test if existing span flags are preserved even when partially overlapped (trailing edge). 157 { 158 final SpannableString text = new SpannableString("0123456789"); 159 text.setSpan(LocaleSpanCompatUtils.newLocaleSpan(Locale.JAPANESE), 3, 7, 160 Spanned.SPAN_INCLUSIVE_INCLUSIVE | Spanned.SPAN_INTERMEDIATE); 161 LocaleSpanCompatUtils.updateLocaleSpan(text, 1, 5, Locale.JAPANESE); 162 assertSpanCount(1, text); 163 assertLocaleSpan(text, 0, 1, 7, Locale.JAPANESE, 164 Spanned.SPAN_EXCLUSIVE_INCLUSIVE | Spanned.SPAN_INTERMEDIATE); 165 } 166 167 // Test if existing locale span will be removed when the locale doesn't match. 168 { 169 final SpannableString text = new SpannableString("0123456789"); 170 text.setSpan(LocaleSpanCompatUtils.newLocaleSpan(Locale.ENGLISH), 3, 5, 171 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 172 LocaleSpanCompatUtils.updateLocaleSpan(text, 1, 7, Locale.JAPANESE); 173 assertSpanCount(1, text); 174 assertLocaleSpan(text, 0, 1, 7, Locale.JAPANESE, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 175 } 176 177 // Test if existing locale span will be removed when the locale doesn't match. (case 2) 178 { 179 final SpannableString text = new SpannableString("0123456789"); 180 text.setSpan(LocaleSpanCompatUtils.newLocaleSpan(Locale.ENGLISH), 3, 7, 181 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 182 LocaleSpanCompatUtils.updateLocaleSpan(text, 5, 6, Locale.JAPANESE); 183 assertSpanCount(3, text); 184 assertLocaleSpan(text, 0, 3, 5, Locale.ENGLISH, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 185 assertLocaleSpan(text, 1, 6, 7, Locale.ENGLISH, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 186 assertLocaleSpan(text, 2, 5, 6, Locale.JAPANESE, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 187 } 188 189 // Test if existing locale span will be removed when the locale doesn't match. (case 3) 190 { 191 final SpannableString text = new SpannableString("0123456789"); 192 text.setSpan(LocaleSpanCompatUtils.newLocaleSpan(Locale.ENGLISH), 3, 7, 193 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 194 LocaleSpanCompatUtils.updateLocaleSpan(text, 2, 5, Locale.JAPANESE); 195 assertSpanCount(2, text); 196 assertLocaleSpan(text, 0, 5, 7, Locale.ENGLISH, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 197 assertLocaleSpan(text, 1, 2, 5, Locale.JAPANESE, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 198 } 199 200 // Test if existing locale span will be removed when the locale doesn't match. (case 3) 201 { 202 final SpannableString text = new SpannableString("0123456789"); 203 text.setSpan(LocaleSpanCompatUtils.newLocaleSpan(Locale.ENGLISH), 3, 7, 204 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 205 LocaleSpanCompatUtils.updateLocaleSpan(text, 5, 8, Locale.JAPANESE); 206 assertSpanCount(2, text); 207 assertLocaleSpan(text, 0, 3, 5, Locale.ENGLISH, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 208 assertLocaleSpan(text, 1, 5, 8, Locale.JAPANESE, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 209 } 210 } 211 } 212
