1 /* 2 * Copyright (C) 2012 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.latin; 18 19 import android.inputmethodservice.InputMethodService; 20 import android.test.AndroidTestCase; 21 import android.test.suitebuilder.annotation.SmallTest; 22 import android.text.TextUtils; 23 import android.view.inputmethod.ExtractedText; 24 import android.view.inputmethod.ExtractedTextRequest; 25 import android.view.inputmethod.InputConnection; 26 import android.view.inputmethod.InputConnectionWrapper; 27 28 import com.android.inputmethod.latin.RichInputConnection.Range; 29 30 @SmallTest 31 public class RichInputConnectionTests extends AndroidTestCase { 32 33 // The following is meant to be a reasonable default for 34 // the "word_separators" resource. 35 private static final String sSeparators = ".,:;!?-"; 36 37 @Override 38 protected void setUp() throws Exception { 39 super.setUp(); 40 } 41 42 private class MockConnection extends InputConnectionWrapper { 43 final String mTextBefore; 44 final String mTextAfter; 45 final ExtractedText mExtractedText; 46 47 public MockConnection(String textBefore, String textAfter, ExtractedText extractedText) { 48 super(null, false); 49 mTextBefore = textBefore; 50 mTextAfter = textAfter; 51 mExtractedText = extractedText; 52 } 53 54 /* (non-Javadoc) 55 * @see android.view.inputmethod.InputConnectionWrapper#getTextBeforeCursor(int, int) 56 */ 57 @Override 58 public CharSequence getTextBeforeCursor(int n, int flags) { 59 return mTextBefore; 60 } 61 62 /* (non-Javadoc) 63 * @see android.view.inputmethod.InputConnectionWrapper#getTextAfterCursor(int, int) 64 */ 65 @Override 66 public CharSequence getTextAfterCursor(int n, int flags) { 67 return mTextAfter; 68 } 69 70 /* (non-Javadoc) 71 * @see android.view.inputmethod.InputConnectionWrapper#getExtractedText( 72 * ExtractedTextRequest, int) 73 */ 74 @Override 75 public ExtractedText getExtractedText(ExtractedTextRequest request, int flags) { 76 return mExtractedText; 77 } 78 79 @Override 80 public boolean beginBatchEdit() { 81 return true; 82 } 83 84 @Override 85 public boolean endBatchEdit() { 86 return true; 87 } 88 89 @Override 90 public boolean finishComposingText() { 91 return true; 92 } 93 } 94 95 private class MockInputMethodService extends InputMethodService { 96 InputConnection mInputConnection; 97 public void setInputConnection(final InputConnection inputConnection) { 98 mInputConnection = inputConnection; 99 } 100 @Override 101 public InputConnection getCurrentInputConnection() { 102 return mInputConnection; 103 } 104 } 105 106 /************************** Tests ************************/ 107 108 /** 109 * Test for getting previous word (for bigram suggestions) 110 */ 111 public void testGetPreviousWord() { 112 // If one of the following cases breaks, the bigram suggestions won't work. 113 assertEquals(RichInputConnection.getNthPreviousWord("abc def", sSeparators, 2), "abc"); 114 assertNull(RichInputConnection.getNthPreviousWord("abc", sSeparators, 2)); 115 assertNull(RichInputConnection.getNthPreviousWord("abc. def", sSeparators, 2)); 116 117 // The following tests reflect the current behavior of the function 118 // RichInputConnection#getNthPreviousWord. 119 // TODO: However at this time, the code does never go 120 // into such a path, so it should be safe to change the behavior of 121 // this function if needed - especially since it does not seem very 122 // logical. These tests are just there to catch any unintentional 123 // changes in the behavior of the RichInputConnection#getPreviousWord method. 124 assertEquals(RichInputConnection.getNthPreviousWord("abc def ", sSeparators, 2), "abc"); 125 assertEquals(RichInputConnection.getNthPreviousWord("abc def.", sSeparators, 2), "abc"); 126 assertEquals(RichInputConnection.getNthPreviousWord("abc def .", sSeparators, 2), "def"); 127 assertNull(RichInputConnection.getNthPreviousWord("abc ", sSeparators, 2)); 128 129 assertEquals(RichInputConnection.getNthPreviousWord("abc def", sSeparators, 1), "def"); 130 assertEquals(RichInputConnection.getNthPreviousWord("abc def ", sSeparators, 1), "def"); 131 assertNull(RichInputConnection.getNthPreviousWord("abc def.", sSeparators, 1)); 132 assertNull(RichInputConnection.getNthPreviousWord("abc def .", sSeparators, 1)); 133 } 134 135 /** 136 * Test logic in getting the word range at the cursor. 137 */ 138 public void testGetWordRangeAtCursor() { 139 ExtractedText et = new ExtractedText(); 140 final MockInputMethodService mockInputMethodService = new MockInputMethodService(); 141 final RichInputConnection ic = new RichInputConnection(mockInputMethodService); 142 mockInputMethodService.setInputConnection(new MockConnection("word wo", "rd", et)); 143 et.startOffset = 0; 144 et.selectionStart = 7; 145 Range r; 146 147 ic.beginBatchEdit(); 148 // basic case 149 r = ic.getWordRangeAtCursor(" ", 0); 150 assertTrue(TextUtils.equals("word", r.mWord)); 151 152 // more than one word 153 r = ic.getWordRangeAtCursor(" ", 1); 154 assertTrue(TextUtils.equals("word word", r.mWord)); 155 ic.endBatchEdit(); 156 157 // tab character instead of space 158 mockInputMethodService.setInputConnection(new MockConnection("one\tword\two", "rd", et)); 159 ic.beginBatchEdit(); 160 r = ic.getWordRangeAtCursor("\t", 1); 161 ic.endBatchEdit(); 162 assertTrue(TextUtils.equals("word\tword", r.mWord)); 163 164 // only one word doesn't go too far 165 mockInputMethodService.setInputConnection(new MockConnection("one\tword\two", "rd", et)); 166 ic.beginBatchEdit(); 167 r = ic.getWordRangeAtCursor("\t", 1); 168 ic.endBatchEdit(); 169 assertTrue(TextUtils.equals("word\tword", r.mWord)); 170 171 // tab or space 172 mockInputMethodService.setInputConnection(new MockConnection("one word\two", "rd", et)); 173 ic.beginBatchEdit(); 174 r = ic.getWordRangeAtCursor(" \t", 1); 175 ic.endBatchEdit(); 176 assertTrue(TextUtils.equals("word\tword", r.mWord)); 177 178 // tab or space multiword 179 mockInputMethodService.setInputConnection(new MockConnection("one word\two", "rd", et)); 180 ic.beginBatchEdit(); 181 r = ic.getWordRangeAtCursor(" \t", 2); 182 ic.endBatchEdit(); 183 assertTrue(TextUtils.equals("one word\tword", r.mWord)); 184 185 // splitting on supplementary character 186 final String supplementaryChar = "\uD840\uDC8A"; 187 mockInputMethodService.setInputConnection( 188 new MockConnection("one word" + supplementaryChar + "wo", "rd", et)); 189 ic.beginBatchEdit(); 190 r = ic.getWordRangeAtCursor(supplementaryChar, 0); 191 ic.endBatchEdit(); 192 assertTrue(TextUtils.equals("word", r.mWord)); 193 } 194 } 195
