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.text.Html;
20 import android.text.SpannableString;
21 import android.text.Spanned;
22 import android.text.TextUtils;
23 import android.text.style.StyleSpan;
24 import android.widget.TextView;
25 
26 import junit.framework.Assert;
27 
28 /**
29  * Utility class to check the value of spanned text in text views.
30  */
31 public class SpannedTestUtils {
32     /**
33      * Checks that the text contained in the text view matches the given HTML text.
34      *
35      * @param expectedHtmlText the expected text to be in the text view
36      * @param textView the text view from which to get the text
37      */
checkHtmlText(String expectedHtmlText, TextView textView)38     public static void checkHtmlText(String expectedHtmlText, TextView textView) {
39         String actualHtmlText = Html.toHtml((Spanned) textView.getText());
40         if (TextUtils.isEmpty(expectedHtmlText)) {
41             // If the text is empty, it does not add the <p></p> bits to it.
42             Assert.assertEquals("", actualHtmlText);
43         } else {
44             Assert.assertEquals("<p dir=ltr>" + expectedHtmlText + "</p>\n", actualHtmlText);
45         }
46     }
47 
48 
49     /**
50      * Assert span exists in the correct location.
51      *
52      * @param seq The spannable string to check.
53      * @param start The starting index.
54      * @param end The ending index.
55      */
assertPrefixSpan(CharSequence seq, int start, int end)56     public static void assertPrefixSpan(CharSequence seq, int start, int end) {
57         Assert.assertTrue(seq instanceof Spanned);
58         Spanned spannable = (Spanned) seq;
59 
60         if (start > 0) {
61             Assert.assertEquals(0, getNumForegroundColorSpansBetween(spannable, 0, start - 1));
62         }
63         Assert.assertEquals(1, getNumForegroundColorSpansBetween(spannable, start, end));
64         Assert.assertEquals(0, getNumForegroundColorSpansBetween(spannable, end + 1,
65                 spannable.length() - 1));
66     }
67 
getNumForegroundColorSpansBetween(Spanned value, int start, int end)68     private static int getNumForegroundColorSpansBetween(Spanned value, int start, int end) {
69         return value.getSpans(start, end, StyleSpan.class).length;
70     }
71 
72     /**
73      * Asserts that the given character sequence is not a Spanned object and text is correct.
74      *
75      * @param seq The sequence to check.
76      * @param expected The expected text.
77      */
assertNotSpanned(CharSequence seq, String expected)78     public static void assertNotSpanned(CharSequence seq, String expected) {
79         Assert.assertFalse(seq instanceof Spanned);
80         Assert.assertEquals(expected, seq);
81     }
82 
getNextTransition(SpannableString seq, int start)83     public static int getNextTransition(SpannableString seq, int start) {
84         return seq.nextSpanTransition(start, seq.length(), StyleSpan.class);
85     }
86 }
87