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
17package com.android.keyguard;
18
19import static org.junit.Assert.assertFalse;
20import static org.junit.Assert.assertTrue;
21
22import android.support.test.filters.SmallTest;
23import android.text.TextUtils;
24import android.view.accessibility.AccessibilityEvent;
25import android.view.accessibility.AccessibilityNodeInfo;
26import android.widget.TextView;
27
28import com.android.systemui.SysuiTestCase;
29
30import org.junit.Before;
31import org.junit.Test;
32
33import java.util.List;
34
35@SmallTest
36public class KeyguardClockAccessibilityDelegateTest extends SysuiTestCase {
37
38    private TextView mView;
39
40    @Before
41    public void setUp() throws Exception {
42        mView = new TextView(mContext);
43        mView.setText(R.string.keyguard_widget_12_hours_format);
44        mView.setContentDescription(mContext.getString(R.string.keyguard_widget_12_hours_format));
45        mView.setAccessibilityDelegate(new KeyguardClockAccessibilityDelegate(mContext));
46    }
47
48    @Test
49    public void onInitializeAccessibilityEvent_producesNonEmptyAsciiContentDesc() throws Exception {
50        AccessibilityEvent ev = AccessibilityEvent.obtain();
51        mView.onInitializeAccessibilityEvent(ev);
52
53        assertFalse(TextUtils.isEmpty(ev.getContentDescription()));
54        assertTrue(isAscii(ev.getContentDescription()));
55    }
56
57    @Test
58    public void onPopulateAccessibilityEvent_producesNonEmptyAsciiText() throws Exception {
59        AccessibilityEvent ev = AccessibilityEvent.obtain();
60        mView.onPopulateAccessibilityEvent(ev);
61
62        assertFalse(isEmpty(ev.getText()));
63        assertTrue(isAscii(ev.getText()));
64    }
65
66    @Test
67    public void onInitializeAccessibilityNodeInfo_producesNonEmptyAsciiText() throws Exception {
68        AccessibilityNodeInfo info = AccessibilityNodeInfo.obtain();
69        // Usually done in View.onInitializeAccessibilityNodeInfoInternal, but only when attached.
70        info.setContentDescription(mView.getContentDescription());
71        mView.onInitializeAccessibilityNodeInfo(info);
72
73        assertFalse(TextUtils.isEmpty(info.getText()));
74        assertTrue(isAscii(info.getText()));
75
76        assertFalse(TextUtils.isEmpty(info.getContentDescription()));
77        assertTrue(isAscii(info.getContentDescription()));
78    }
79
80    private boolean isAscii(CharSequence text) {
81        return text.chars().allMatch((i) -> i < 128);
82    }
83
84    private boolean isAscii(List<CharSequence> texts) {
85        return texts.stream().allMatch(this::isAscii);
86    }
87
88    private boolean isEmpty(List<CharSequence> texts) {
89        return texts.stream().allMatch(TextUtils::isEmpty);
90    }
91}