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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 
     21 import android.hardware.cts.helpers.SensorStats;
     22 import android.hardware.cts.helpers.TestSensorEnvironment;
     23 import android.hardware.cts.helpers.TestSensorEvent;
     24 
     25 import java.util.ArrayList;
     26 import java.util.Collection;
     27 
     28 /**
     29  * Tests for {@link MagnitudeVerification}.
     30  */
     31 public class MagnitudeVerificationTest extends TestCase {
     32 
     33     /**
     34      * Test {@link MagnitudeVerification#verify(TestSensorEnvironment, SensorStats)}.
     35      */
     36     public void testVerify() {
     37         float[][] values = {
     38                 {0, 3, 4},
     39                 {4, 0, 3},
     40                 {3, 4, 0},
     41                 {0, 0, 4},
     42                 {6, 0, 0},
     43         };
     44 
     45         runStats(5.0f, 0.1f, values, true, 5.0f);
     46         runStats(4.5f, 0.6f, values, true, 5.0f);
     47         runStats(5.5f, 0.6f, values, true, 5.0f);
     48         runStats(4.5f, 0.1f, values, false, 5.0f);
     49         runStats(5.5f, 0.1f, values, false, 5.0f);
     50     }
     51 
     52     private void runStats(float expected, float threshold, float[][] values, boolean pass, float magnitude) {
     53         SensorStats stats = new SensorStats();
     54         MagnitudeVerification verification = getVerification(expected, threshold, values);
     55         if (pass) {
     56             verification.verify(stats);
     57         } else {
     58             try {
     59                 verification.verify(stats);
     60                 fail("Expected an AssertionError");
     61             } catch (AssertionError e) {
     62                 // Expected;
     63             }
     64         }
     65         assertEquals(pass, stats.getValue(MagnitudeVerification.PASSED_KEY));
     66         assertEquals(magnitude, (Float) stats.getValue(SensorStats.MAGNITUDE_KEY), 0.01);
     67     }
     68 
     69     private static MagnitudeVerification getVerification(float expected, float threshold,
     70             float[] ... values) {
     71         Collection<TestSensorEvent> events = new ArrayList<>(values.length);
     72         for (float[] value : values) {
     73             events.add(new TestSensorEvent(null, 0, 0, value));
     74         }
     75         MagnitudeVerification verification = new MagnitudeVerification(expected, threshold);
     76         verification.addSensorEvents(events);
     77         return verification;
     78     }
     79 }
     80