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      1 /*
      2  * Copyright (C) 2009 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.view.cts;
     18 
     19 import static org.junit.Assert.assertEquals;
     20 
     21 import android.content.Context;
     22 import android.hardware.Sensor;
     23 import android.hardware.SensorManager;
     24 import android.support.test.InstrumentationRegistry;
     25 import android.support.test.filters.SmallTest;
     26 import android.support.test.runner.AndroidJUnit4;
     27 import android.view.OrientationEventListener;
     28 
     29 import org.junit.Before;
     30 import org.junit.Test;
     31 import org.junit.runner.RunWith;
     32 
     33 /**
     34  * Test {@link OrientationEventListener}.
     35  */
     36 @SmallTest
     37 @RunWith(AndroidJUnit4.class)
     38 public class OrientationEventListenerTest {
     39     private Context mContext;
     40 
     41     @Before
     42     public void setup() {
     43         mContext = InstrumentationRegistry.getTargetContext();
     44     }
     45 
     46     @Test
     47     public void testConstructor() {
     48         new MyOrientationEventListener(mContext);
     49 
     50         new MyOrientationEventListener(mContext, SensorManager.SENSOR_DELAY_UI);
     51     }
     52 
     53     @Test
     54     public void testEnableAndDisable() {
     55         MyOrientationEventListener listener = new MyOrientationEventListener(mContext);
     56         listener.enable();
     57         listener.disable();
     58     }
     59 
     60     @Test
     61     public void testCanDetectOrientation() {
     62         SensorManager sm = (SensorManager)mContext.getSystemService(Context.SENSOR_SERVICE);
     63         // Orientation can only be detected if there is an accelerometer
     64         boolean hasSensor = (sm.getDefaultSensor(Sensor.TYPE_ACCELEROMETER) != null);
     65 
     66         MyOrientationEventListener listener = new MyOrientationEventListener(mContext);
     67         assertEquals(hasSensor, listener.canDetectOrientation());
     68     }
     69 
     70     private static class MyOrientationEventListener extends OrientationEventListener {
     71         public MyOrientationEventListener(Context context) {
     72             super(context);
     73         }
     74 
     75         public MyOrientationEventListener(Context context, int rate) {
     76             super(context, rate);
     77         }
     78 
     79         @Override
     80         public void onOrientationChanged(int orientation) {
     81         }
     82     }
     83 }
     84