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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 static android.accessibilityservice.cts.utils.CtsTestUtils.runIfNotNull;
     18 
     19 import android.accessibilityservice.AccessibilityButtonController;
     20 import android.app.Instrumentation;
     21 import android.platform.test.annotations.AppModeFull;
     22 
     23 import androidx.test.InstrumentationRegistry;
     24 import androidx.test.runner.AndroidJUnit4;
     25 
     26 import org.junit.After;
     27 import org.junit.Before;
     28 import org.junit.Test;
     29 import org.junit.runner.RunWith;
     30 
     31 /**
     32  * Test cases for accessibility service APIs related to the accessibility button within
     33  * software-rendered navigation bars.
     34  *
     35  * TODO: Extend coverage with a more precise signal if a device is compatible with the button
     36  */
     37 @RunWith(AndroidJUnit4.class)
     38 public class AccessibilityButtonTest {
     39 
     40     private StubAccessibilityButtonService mService;
     41     private AccessibilityButtonController mButtonController;
     42     private AccessibilityButtonController.AccessibilityButtonCallback mStubCallback =
     43             new AccessibilityButtonController.AccessibilityButtonCallback() {
     44         @Override
     45         public void onClicked(AccessibilityButtonController controller) {
     46             /* do nothing */
     47         }
     48 
     49         @Override
     50         public void onAvailabilityChanged(AccessibilityButtonController controller,
     51                 boolean available) {
     52             /* do nothing */
     53         }
     54     };
     55 
     56     @Before
     57     public void setUp() {
     58         Instrumentation instrumentation = InstrumentationRegistry.getInstrumentation();
     59         mService = StubAccessibilityButtonService.enableSelf(instrumentation);
     60         mButtonController = mService.getAccessibilityButtonController();
     61     }
     62 
     63     @After
     64     public void tearDown() {
     65         runIfNotNull(mService, service -> service.runOnServiceSync(service::disableSelf));
     66     }
     67 
     68     @Test
     69     @AppModeFull
     70     public void testCallbackRegistrationUnregistration_serviceDoesNotCrash() {
     71         mButtonController.registerAccessibilityButtonCallback(mStubCallback);
     72         mButtonController.unregisterAccessibilityButtonCallback(mStubCallback);
     73     }
     74 }
     75