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      1 /*
      2  * Copyright (C) 2014 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.hardware.cts.helpers.sensorverification;
     18 
     19 import junit.framework.TestCase;
     20 import android.content.Context;
     21 import android.hardware.Sensor;
     22 import android.hardware.SensorManager;
     23 import android.hardware.cts.helpers.SensorStats;
     24 import android.hardware.cts.helpers.TestSensorEnvironment;
     25 import android.hardware.cts.helpers.TestSensorEvent;
     26 import android.test.AndroidTestCase;
     27 
     28 import java.util.ArrayList;
     29 import java.util.Collection;
     30 
     31 /**
     32  * Tests for {@link EventBasicVerification}.
     33  */
     34 public class EventBasicVerificationTest extends AndroidTestCase {
     35 
     36     /**
     37      * Test {@link EventBasicVerification#verify(TestSensorEnvironment, SensorStats)}.
     38      */
     39     public void testVerify() {
     40 
     41         /* Sensor contents is not used in this verification, use Object as mock */
     42         SensorManager mgr = (SensorManager) mContext.getSystemService(Context.SENSOR_SERVICE);
     43 
     44         Sensor sensor1 = null;
     45 
     46         // accelerometer is the most likely sensor to exist
     47         Sensor sensor2 = mgr.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
     48 
     49         SensorStats stats;
     50 
     51         EventBasicVerification verification;
     52 
     53         // case 1
     54         verification = getVerification(10, sensor1, sensor1, new float[20][3]);
     55         stats = new SensorStats();
     56 
     57         verification.verify(stats);
     58         assertEquals(true, stats.getValue(EventBasicVerification.PASSED_KEY));
     59         assertEquals(20, (long) stats.getValue(SensorStats.EVENT_COUNT_KEY));
     60         assertEquals(false, stats.getValue(SensorStats.WRONG_SENSOR_KEY));
     61 
     62         // case 2
     63         verification = getVerification(10, sensor1, sensor1, new float[5][3]);
     64         stats = new SensorStats();
     65 
     66         try {
     67             verification.verify(stats);
     68             throw new Error("Expect an AssertionError due to insufficient samples");
     69         } catch (AssertionError e) {
     70             //Expected
     71         }
     72         assertEquals(false, stats.getValue(EventBasicVerification.PASSED_KEY));
     73         assertEquals(5, (long) stats.getValue(SensorStats.EVENT_COUNT_KEY));
     74         assertEquals(false, stats.getValue(SensorStats.WRONG_SENSOR_KEY));
     75 
     76         // case 3
     77         if (sensor1 != sensor2) {
     78             // if we cannot even get a second sensor then do not bother this test.
     79             verification = getVerification(10, sensor1, sensor2, new float[15][3]);
     80             stats = new SensorStats();
     81 
     82             try {
     83                 verification.verify(stats);
     84                 throw new Error("Expect an AssertionError due to wrong sensor event");
     85             } catch (AssertionError e) {
     86                 //Expected
     87             }
     88             assertEquals(false, stats.getValue(EventBasicVerification.PASSED_KEY));
     89             // zero here because wrong sensor is used.
     90             assertEquals(0, (long) stats.getValue(SensorStats.EVENT_COUNT_KEY));
     91             assertEquals(true, stats.getValue(SensorStats.WRONG_SENSOR_KEY));
     92         }
     93     }
     94 
     95     private static EventBasicVerification getVerification(
     96             int expectedMinNumEvent, Sensor sensor, Sensor eventSensor, float[] ... values) {
     97 
     98         Collection<TestSensorEvent> events = new ArrayList<>(values.length);
     99         for (float[] value : values) {
    100             events.add(new TestSensorEvent(eventSensor, 0, 0, value));
    101         }
    102         EventBasicVerification verification =
    103                 new EventBasicVerification(expectedMinNumEvent, sensor);
    104         verification.addSensorEvents(events);
    105         return verification;
    106     }
    107 }
    108