1 /*
2  * Copyright (C) 2014 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.inputmethod.compat;
18 
19 import android.graphics.Typeface;
20 import android.os.Parcel;
21 import android.test.AndroidTestCase;
22 import android.test.suitebuilder.annotation.SmallTest;
23 import android.text.SpannableString;
24 import android.text.Spanned;
25 import android.text.TextUtils;
26 import android.text.style.StyleSpan;
27 import android.text.style.URLSpan;
28 import android.view.textservice.TextInfo;
29 
30 import java.util.Arrays;
31 
32 @SmallTest
33 public class TextInfoCompatUtilsTests extends AndroidTestCase {
34     final private static String TEST_TEXT = "0123456789";
35     final private static int TEST_COOKIE = 0x1234;
36     final private static int TEST_SEQUENCE_NUMBER = 0x4321;
37     final private static int TEST_CHAR_SEQUENCE_START = 1;
38     final private static int TEST_CHAR_SEQUENCE_END = 6;
39     final private static StyleSpan TEST_STYLE_SPAN = new StyleSpan(Typeface.BOLD);
40     final private static int TEST_STYLE_SPAN_START = 4;
41     final private static int TEST_STYLE_SPAN_END = 5;
42     final private static int TEST_STYLE_SPAN_FLAGS = Spanned.SPAN_EXCLUSIVE_INCLUSIVE;
43     final private static URLSpan TEST_URL_SPAN_URL = new URLSpan("http://example.com");
44     final private static int TEST_URL_SPAN_START = 3;
45     final private static int TEST_URL_SPAN_END = 7;
46     final private static int TEST_URL_SPAN_FLAGS = Spanned.SPAN_EXCLUSIVE_EXCLUSIVE;
47 
testGetCharSequence()48     public void testGetCharSequence() {
49         final SpannableString text = new SpannableString(TEST_TEXT);
50         text.setSpan(TEST_STYLE_SPAN, TEST_STYLE_SPAN_START, TEST_STYLE_SPAN_END,
51                 TEST_STYLE_SPAN_FLAGS);
52         text.setSpan(TEST_URL_SPAN_URL, TEST_URL_SPAN_START, TEST_URL_SPAN_END,
53                 TEST_URL_SPAN_FLAGS);
54 
55         final TextInfo textInfo = TextInfoCompatUtils.newInstance(text,
56                 TEST_CHAR_SEQUENCE_START, TEST_CHAR_SEQUENCE_END, TEST_COOKIE,
57                 TEST_SEQUENCE_NUMBER);
58         final Spanned expectedSpanned = (Spanned) text.subSequence(TEST_CHAR_SEQUENCE_START,
59                 TEST_CHAR_SEQUENCE_END);
60         final CharSequence actualCharSequence =
61                 TextInfoCompatUtils.getCharSequenceOrString(textInfo);
62 
63         // This should be valid even if TextInfo#getCharSequence is not supported.
64         assertTrue(TextUtils.equals(expectedSpanned, actualCharSequence));
65 
66         if (TextInfoCompatUtils.isCharSequenceSupported()) {
67             // This is valid only if TextInfo#getCharSequence is supported.
68             assertTrue("should be Spanned", actualCharSequence instanceof Spanned);
69             assertTrue(Arrays.equals(marshall(expectedSpanned), marshall(actualCharSequence)));
70         }
71     }
72 
marshall(final CharSequence cahrSequence)73     private static byte[] marshall(final CharSequence cahrSequence) {
74         Parcel parcel = null;
75         try {
76             parcel = Parcel.obtain();
77             TextUtils.writeToParcel(cahrSequence, parcel, 0);
78             return parcel.marshall();
79         } finally {
80             if (parcel != null) {
81                 parcel.recycle();
82                 parcel = null;
83             }
84         }
85     }
86 }
87