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 com.android.contacts.format;
18
19import android.test.suitebuilder.annotation.SmallTest;
20import android.text.Html;
21import android.text.Spanned;
22import android.text.TextUtils;
23import android.text.style.ForegroundColorSpan;
24import android.widget.TextView;
25
26import junit.framework.Assert;
27
28/**
29 * Utility class to check the value of spanned text in text views.
30 */
31@SmallTest
32public class SpannedTestUtils {
33    /**
34     * Checks that the text contained in the text view matches the given HTML text.
35     *
36     * @param expectedHtmlText the expected text to be in the text view
37     * @param textView the text view from which to get the text
38     */
39    public static void checkHtmlText(String expectedHtmlText, TextView textView) {
40        String actualHtmlText = Html.toHtml((Spanned) textView.getText());
41        if (TextUtils.isEmpty(expectedHtmlText)) {
42            // If the text is empty, it does not add the <p></p> bits to it.
43            Assert.assertEquals("", actualHtmlText);
44        } else {
45            Assert.assertEquals("<p dir=ltr>" + expectedHtmlText + "</p>\n", actualHtmlText);
46        }
47    }
48
49
50    /**
51     * Assert span exists in the correct location.
52     *
53     * @param seq The spannable string to check.
54     * @param start The starting index.
55     * @param end The ending index.
56     */
57    public static void assertPrefixSpan(CharSequence seq, int start, int end) {
58        Assert.assertTrue(seq instanceof Spanned);
59        Spanned spannable = (Spanned) seq;
60
61        if (start > 0) {
62            Assert.assertEquals(0, getNumForegroundColorSpansBetween(spannable, 0, start - 1));
63        }
64        Assert.assertEquals(1, getNumForegroundColorSpansBetween(spannable, start, end));
65        Assert.assertEquals(0, getNumForegroundColorSpansBetween(spannable, end + 1,
66                spannable.length() - 1));
67    }
68
69    private static int getNumForegroundColorSpansBetween(Spanned value, int start, int end) {
70        return value.getSpans(start, end, ForegroundColorSpan.class).length;
71    }
72
73    /**
74     * Asserts that the given character sequence is not a Spanned object and text is correct.
75     *
76     * @param seq The sequence to check.
77     * @param expected The expected text.
78     */
79    public static void assertNotSpanned(CharSequence seq, String expected) {
80        Assert.assertFalse(seq instanceof Spanned);
81        Assert.assertEquals(expected, seq);
82    }
83}
84