1 /*
2  * Copyright (C) 2017 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.keyguard;
18 
19 import static org.junit.Assert.assertEquals;
20 import static org.junit.Assert.assertFalse;
21 import static org.junit.Assert.assertTrue;
22 
23 import android.support.test.filters.SmallTest;
24 import android.text.TextUtils;
25 import android.view.accessibility.AccessibilityEvent;
26 import android.view.accessibility.AccessibilityNodeInfo;
27 import android.widget.TextView;
28 
29 import com.android.systemui.SysuiTestCase;
30 
31 import org.junit.Before;
32 import org.junit.Test;
33 
34 import java.util.List;
35 
36 @SmallTest
37 public class KeyguardClockAccessibilityDelegateTest extends SysuiTestCase {
38 
39     private TextView mView;
40     private String m12HoursFormat;
41     private String m24HoursFormat;
42 
43     @Before
setUp()44     public void setUp() throws Exception {
45         m12HoursFormat = mContext.getString(R.string.keyguard_widget_12_hours_format);
46         m24HoursFormat = mContext.getString(R.string.keyguard_widget_24_hours_format);
47 
48         mView = new TextView(mContext);
49         mView.setText(m12HoursFormat);
50         mView.setContentDescription(m12HoursFormat);
51         mView.setAccessibilityDelegate(new KeyguardClockAccessibilityDelegate(mContext));
52     }
53 
54     @Test
onInitializeAccessibilityEvent_producesNonEmptyAsciiContentDesc()55     public void onInitializeAccessibilityEvent_producesNonEmptyAsciiContentDesc() throws Exception {
56         AccessibilityEvent ev = AccessibilityEvent.obtain();
57         mView.onInitializeAccessibilityEvent(ev);
58 
59         assertFalse(TextUtils.isEmpty(ev.getContentDescription()));
60         assertTrue(isAscii(ev.getContentDescription()));
61     }
62 
63     @Test
onPopulateAccessibilityEvent_producesNonEmptyAsciiText()64     public void onPopulateAccessibilityEvent_producesNonEmptyAsciiText() throws Exception {
65         AccessibilityEvent ev = AccessibilityEvent.obtain();
66         mView.onPopulateAccessibilityEvent(ev);
67 
68         assertFalse(isEmpty(ev.getText()));
69         assertTrue(isAscii(ev.getText()));
70     }
71 
72     @Test
onInitializeAccessibilityNodeInfo_producesNonEmptyAsciiText()73     public void onInitializeAccessibilityNodeInfo_producesNonEmptyAsciiText() throws Exception {
74         AccessibilityNodeInfo info = AccessibilityNodeInfo.obtain();
75         // Usually done in View.onInitializeAccessibilityNodeInfoInternal, but only when attached.
76         info.setContentDescription(mView.getContentDescription());
77         mView.onInitializeAccessibilityNodeInfo(info);
78 
79         assertFalse(TextUtils.isEmpty(info.getText()));
80         assertTrue(isAscii(info.getText()));
81 
82         assertFalse(TextUtils.isEmpty(info.getContentDescription()));
83         assertTrue(isAscii(info.getContentDescription()));
84     }
85 
86     @Test
isNeeded_returnsTrueIfDateFormatsContainNonAscii()87     public void isNeeded_returnsTrueIfDateFormatsContainNonAscii() {
88         if (!isAscii(m12HoursFormat) || !isAscii(m24HoursFormat)) {
89             assertTrue(KeyguardClockAccessibilityDelegate.isNeeded(mContext));
90         }
91     }
92 
93     @Test
isNeeded_returnsWhetherFancyColonExists()94     public void isNeeded_returnsWhetherFancyColonExists() {
95         boolean hasFancyColon = !TextUtils.isEmpty(mContext.getString(
96                 R.string.keyguard_fancy_colon));
97 
98         assertEquals(hasFancyColon, KeyguardClockAccessibilityDelegate.isNeeded(mContext));
99     }
100 
isAscii(CharSequence text)101     private boolean isAscii(CharSequence text) {
102         return text.chars().allMatch((i) -> i < 128);
103     }
104 
isAscii(List<CharSequence> texts)105     private boolean isAscii(List<CharSequence> texts) {
106         return texts.stream().allMatch(this::isAscii);
107     }
108 
isEmpty(List<CharSequence> texts)109     private boolean isEmpty(List<CharSequence> texts) {
110         return texts.stream().allMatch(TextUtils::isEmpty);
111     }
112 }