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      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.assertFalse;
     20 import static org.junit.Assert.assertTrue;
     21 
     22 import android.support.test.filters.SmallTest;
     23 import android.text.TextUtils;
     24 import android.view.accessibility.AccessibilityEvent;
     25 import android.view.accessibility.AccessibilityNodeInfo;
     26 import android.widget.TextView;
     27 
     28 import com.android.systemui.SysuiTestCase;
     29 
     30 import org.junit.Before;
     31 import org.junit.Test;
     32 
     33 import java.util.List;
     34 
     35 @SmallTest
     36 public 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 }