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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"); you may not use this file except
      5  * in compliance with the License. You may obtain a copy of the License at
      6  *
      7  * http://www.apache.org/licenses/LICENSE-2.0
      8  *
      9  * Unless required by applicable law or agreed to in writing, software distributed under the
     10  * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
     11  * express or implied. See the License for the specific language governing permissions and
     12  * limitations under the License.
     13  */
     14 
     15 package android.accessibilityservice.cts;
     16 
     17 import android.accessibilityservice.AccessibilityButtonController;
     18 import android.app.Instrumentation;
     19 import android.platform.test.annotations.AppModeFull;
     20 import android.support.test.InstrumentationRegistry;
     21 import android.support.test.runner.AndroidJUnit4;
     22 
     23 import org.junit.After;
     24 import org.junit.Before;
     25 import org.junit.Test;
     26 import org.junit.runner.RunWith;
     27 
     28 /**
     29  * Test cases for accessibility service APIs related to the accessibility button within
     30  * software-rendered navigation bars.
     31  *
     32  * TODO: Extend coverage with a more precise signal if a device is compatible with the button
     33  */
     34 @RunWith(AndroidJUnit4.class)
     35 public class AccessibilityButtonTest {
     36 
     37     private StubAccessibilityButtonService mService;
     38     private AccessibilityButtonController mButtonController;
     39     private AccessibilityButtonController.AccessibilityButtonCallback mStubCallback =
     40             new AccessibilityButtonController.AccessibilityButtonCallback() {
     41         @Override
     42         public void onClicked(AccessibilityButtonController controller) {
     43             /* do nothing */
     44         }
     45 
     46         @Override
     47         public void onAvailabilityChanged(AccessibilityButtonController controller,
     48                 boolean available) {
     49             /* do nothing */
     50         }
     51     };
     52 
     53     @Before
     54     public void setUp() {
     55         Instrumentation instrumentation = InstrumentationRegistry.getInstrumentation();
     56         mService = StubAccessibilityButtonService.enableSelf(instrumentation);
     57         mButtonController = mService.getAccessibilityButtonController();
     58     }
     59 
     60     @After
     61     public void tearDown() {
     62         mService.runOnServiceSync(() -> mService.disableSelf());
     63     }
     64 
     65     @Test
     66     @AppModeFull
     67     public void testCallbackRegistrationUnregistration_serviceDoesNotCrash() {
     68         mButtonController.registerAccessibilityButtonCallback(mStubCallback);
     69         mButtonController.unregisterAccessibilityButtonCallback(mStubCallback);
     70     }
     71 }
     72