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
17package src.com.android.contacts.common.format;
18
19import android.graphics.Typeface;
20import android.test.suitebuilder.annotation.SmallTest;
21import android.text.SpannableString;
22
23import com.android.contacts.common.format.SpannedTestUtils;
24import com.android.contacts.common.format.TextHighlighter;
25
26import junit.framework.TestCase;
27
28/**
29 * Unit tests for {@link TextHighlighter}.
30 */
31@SmallTest
32public 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