1 /*
2  * Copyright (C) 2018 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 android.widget;
18 
19 import androidx.test.InstrumentationRegistry;
20 import androidx.test.annotation.UiThreadTest;
21 import androidx.test.filters.SmallTest;
22 import androidx.test.runner.AndroidJUnit4;
23 
24 import org.junit.Test;
25 import org.junit.runner.RunWith;
26 
27 @RunWith(AndroidJUnit4.class)
28 @SmallTest
29 public class DateTimeViewTest {
30 
31     @UiThreadTest
32     @Test
additionalOnDetachedFromWindow_noException()33     public void additionalOnDetachedFromWindow_noException() {
34         final TestDateTimeView dateTimeView = new TestDateTimeView();
35         dateTimeView.attachedToWindow();
36         dateTimeView.detachedFromWindow();
37         // Even there is an additional detach (abnormal), DateTimeView should not unregister
38         // receiver again that raises "java.lang.IllegalArgumentException: Receiver not registered".
39         dateTimeView.detachedFromWindow();
40     }
41 
42     private static class TestDateTimeView extends DateTimeView {
TestDateTimeView()43         TestDateTimeView() {
44             super(InstrumentationRegistry.getContext());
45         }
46 
attachedToWindow()47         void attachedToWindow() {
48             super.onAttachedToWindow();
49         }
50 
detachedFromWindow()51         void detachedFromWindow() {
52             super.onDetachedFromWindow();
53         }
54     }
55 }
56