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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.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
     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
     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
     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
     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
     87     public void isNeeded_returnsTrueIfDateFormatsContainNonAscii() {
     88         if (!isAscii(m12HoursFormat) || !isAscii(m24HoursFormat)) {
     89             assertTrue(KeyguardClockAccessibilityDelegate.isNeeded(mContext));
     90         }
     91     }
     92 
     93     @Test
     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 
    101     private boolean isAscii(CharSequence text) {
    102         return text.chars().allMatch((i) -> i < 128);
    103     }
    104 
    105     private boolean isAscii(List<CharSequence> texts) {
    106         return texts.stream().allMatch(this::isAscii);
    107     }
    108 
    109     private boolean isEmpty(List<CharSequence> texts) {
    110         return texts.stream().allMatch(TextUtils::isEmpty);
    111     }
    112 }