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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 src.com.android.contacts.common.format;
     18 
     19 import android.graphics.Typeface;
     20 import android.test.suitebuilder.annotation.SmallTest;
     21 import android.text.SpannableString;
     22 
     23 import com.android.contacts.common.format.SpannedTestUtils;
     24 import com.android.contacts.common.format.TextHighlighter;
     25 
     26 import junit.framework.TestCase;
     27 
     28 /**
     29  * Unit tests for {@link TextHighlighter}.
     30  */
     31 @SmallTest
     32 public class TextHighlighterTest extends TestCase {
     33     private static final int TEST_PREFIX_HIGHLIGHT_COLOR = 0xFF0000;
     34 
     35     /** The object under test. */
     36     private TextHighlighter mTextHighlighter;
     37 
     38     @Override
     39     protected void setUp() throws Exception {
     40         super.setUp();
     41         mTextHighlighter = new TextHighlighter(Typeface.BOLD);
     42     }
     43 
     44     public void testApply_EmptyPrefix() {
     45         CharSequence seq = mTextHighlighter.applyPrefixHighlight("", "");
     46         SpannedTestUtils.assertNotSpanned(seq, "");
     47 
     48         seq = mTextHighlighter.applyPrefixHighlight("test", "");
     49         SpannedTestUtils.assertNotSpanned(seq, "test");
     50     }
     51 
     52     public void testSetText_MatchingPrefix() {
     53         final String prefix = "TE";
     54 
     55         CharSequence 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("TEst", prefix);
     62         SpannedTestUtils.assertPrefixSpan(seq, 0, 1);
     63 
     64         seq = mTextHighlighter.applyPrefixHighlight("a test", prefix);
     65         SpannedTestUtils.assertPrefixSpan(seq, 2, 3);
     66     }
     67 
     68     public void testSetText_NotMatchingPrefix() {
     69         final CharSequence seq = mTextHighlighter.applyPrefixHighlight("test", "TA");
     70         SpannedTestUtils.assertNotSpanned(seq, "test");
     71     }
     72 
     73     public void testSetText_FirstMatch() {
     74         final CharSequence seq = mTextHighlighter.applyPrefixHighlight(
     75                 "a test's tests are not tests", "TE");
     76         SpannedTestUtils.assertPrefixSpan(seq, 2, 3);
     77     }
     78 
     79     public void testSetText_NoMatchingMiddleOfWord() {
     80         final String prefix = "TE";
     81         CharSequence seq = mTextHighlighter.applyPrefixHighlight("atest", prefix);
     82         SpannedTestUtils.assertNotSpanned(seq, "atest");
     83 
     84         seq = mTextHighlighter.applyPrefixHighlight("atest otest", prefix);
     85         SpannedTestUtils.assertNotSpanned(seq, "atest otest");
     86 
     87         seq = mTextHighlighter.applyPrefixHighlight("atest test", prefix);
     88         SpannedTestUtils.assertPrefixSpan(seq, 6, 7);
     89     }
     90 
     91     public void testSetMask_Highlight() {
     92         final SpannableString testString1 = new SpannableString("alongtest");
     93         mTextHighlighter.applyMaskingHighlight(testString1, 2, 4);
     94         assertEquals(2, SpannedTestUtils.getNextTransition(testString1, 0));
     95         assertEquals(4, SpannedTestUtils.getNextTransition(testString1, 2));
     96 
     97         mTextHighlighter.applyMaskingHighlight(testString1, 3, 6);
     98         assertEquals(2, SpannedTestUtils.getNextTransition(testString1, 0));
     99         assertEquals(4, SpannedTestUtils.getNextTransition(testString1, 3));
    100 
    101         mTextHighlighter.applyMaskingHighlight(testString1, 4, 5);
    102         assertEquals(3, SpannedTestUtils.getNextTransition(testString1, 2));
    103 
    104         mTextHighlighter.applyMaskingHighlight(testString1, 7, 8);
    105         assertEquals(6, SpannedTestUtils.getNextTransition(testString1, 5));
    106         assertEquals(7, SpannedTestUtils.getNextTransition(testString1, 6));
    107         assertEquals(8, SpannedTestUtils.getNextTransition(testString1, 7));
    108     }
    109 }
    110