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      1 /*
      2  * Copyright (C) 2011 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.contacts.format;
     18 
     19 import android.graphics.Typeface;
     20 import android.test.suitebuilder.annotation.SmallTest;
     21 import android.text.SpannableString;
     22 
     23 import junit.framework.TestCase;
     24 
     25 /**
     26  * Unit tests for {@link TextHighlighter}.
     27  */
     28 @SmallTest
     29 public class TextHighlighterTest extends TestCase {
     30     private static final int TEST_PREFIX_HIGHLIGHT_COLOR = 0xFF0000;
     31 
     32     /** The object under test. */
     33     private TextHighlighter mTextHighlighter;
     34 
     35     @Override
     36     protected void setUp() throws Exception {
     37         super.setUp();
     38         mTextHighlighter = new TextHighlighter(Typeface.BOLD);
     39     }
     40 
     41     public void testApply_EmptyPrefix() {
     42         CharSequence seq = mTextHighlighter.applyPrefixHighlight("", "");
     43         SpannedTestUtils.assertNotSpanned(seq, "");
     44 
     45         seq = mTextHighlighter.applyPrefixHighlight("test", "");
     46         SpannedTestUtils.assertNotSpanned(seq, "test");
     47     }
     48 
     49     public void testSetText_MatchingPrefix() {
     50         final String prefix = "TE";
     51 
     52         CharSequence seq = mTextHighlighter.applyPrefixHighlight("test", prefix);
     53         SpannedTestUtils.assertPrefixSpan(seq, 0, 1);
     54 
     55         seq = mTextHighlighter.applyPrefixHighlight("Test", prefix);
     56         SpannedTestUtils.assertPrefixSpan(seq, 0, 1);
     57 
     58         seq = mTextHighlighter.applyPrefixHighlight("TEst", prefix);
     59         SpannedTestUtils.assertPrefixSpan(seq, 0, 1);
     60 
     61         seq = mTextHighlighter.applyPrefixHighlight("a test", prefix);
     62         SpannedTestUtils.assertPrefixSpan(seq, 2, 3);
     63     }
     64 
     65     public void testSetText_NotMatchingPrefix() {
     66         final CharSequence seq = mTextHighlighter.applyPrefixHighlight("test", "TA");
     67         SpannedTestUtils.assertNotSpanned(seq, "test");
     68     }
     69 
     70     public void testSetText_FirstMatch() {
     71         final CharSequence seq = mTextHighlighter.applyPrefixHighlight(
     72                 "a test's tests are not tests", "TE");
     73         SpannedTestUtils.assertPrefixSpan(seq, 2, 3);
     74     }
     75 
     76     public void testSetText_NoMatchingMiddleOfWord() {
     77         final String prefix = "TE";
     78         CharSequence seq = mTextHighlighter.applyPrefixHighlight("atest", prefix);
     79         SpannedTestUtils.assertNotSpanned(seq, "atest");
     80 
     81         seq = mTextHighlighter.applyPrefixHighlight("atest otest", prefix);
     82         SpannedTestUtils.assertNotSpanned(seq, "atest otest");
     83 
     84         seq = mTextHighlighter.applyPrefixHighlight("atest test", prefix);
     85         SpannedTestUtils.assertPrefixSpan(seq, 6, 7);
     86     }
     87 
     88     public void testSetMask_Highlight() {
     89         final SpannableString testString1 = new SpannableString("alongtest");
     90         mTextHighlighter.applyMaskingHighlight(testString1, 2, 4);
     91         assertEquals(2, SpannedTestUtils.getNextTransition(testString1, 0));
     92         assertEquals(4, SpannedTestUtils.getNextTransition(testString1, 2));
     93 
     94         mTextHighlighter.applyMaskingHighlight(testString1, 3, 6);
     95         assertEquals(2, SpannedTestUtils.getNextTransition(testString1, 0));
     96         assertEquals(4, SpannedTestUtils.getNextTransition(testString1, 3));
     97 
     98         mTextHighlighter.applyMaskingHighlight(testString1, 4, 5);
     99         assertEquals(3, SpannedTestUtils.getNextTransition(testString1, 2));
    100 
    101         mTextHighlighter.applyMaskingHighlight(testString1, 7, 8);
    102         assertEquals(6, SpannedTestUtils.getNextTransition(testString1, 5));
    103         assertEquals(7, SpannedTestUtils.getNextTransition(testString1, 6));
    104         assertEquals(8, SpannedTestUtils.getNextTransition(testString1, 7));
    105     }
    106 }
    107