1 /* 2 * Copyright (C) 2018 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.display; 18 19 import static org.junit.Assert.assertArrayEquals; 20 import static org.junit.Assert.assertEquals; 21 import static org.junit.Assert.assertNotEquals; 22 import static org.junit.Assert.assertTrue; 23 import static org.junit.Assert.fail; 24 25 import android.os.Parcel; 26 27 import androidx.test.filters.SmallTest; 28 import androidx.test.runner.AndroidJUnit4; 29 30 import org.junit.Test; 31 import org.junit.runner.RunWith; 32 33 import java.time.LocalDate; 34 import java.util.Arrays; 35 36 @SmallTest 37 @RunWith(AndroidJUnit4.class) 38 public class AmbientBrightnessDayStatsTest { 39 40 private static final LocalDate LOCAL_DATE = LocalDate.now(); 41 private static final float[] BUCKET_BOUNDARIES = {0, 1, 10, 100}; 42 private static final float[] STATS = {1.3f, 2.6f, 5.8f, 10}; 43 44 @Test testParamsMustNotBeNull()45 public void testParamsMustNotBeNull() { 46 assertThrows(NullPointerException.class, 47 () -> new AmbientBrightnessDayStats(null, BUCKET_BOUNDARIES)); 48 49 assertThrows(NullPointerException.class, 50 () -> new AmbientBrightnessDayStats(LOCAL_DATE, null)); 51 52 assertThrows(NullPointerException.class, 53 () -> new AmbientBrightnessDayStats(null, BUCKET_BOUNDARIES, STATS)); 54 55 assertThrows(NullPointerException.class, 56 () -> new AmbientBrightnessDayStats(LOCAL_DATE, null, STATS)); 57 } 58 59 @Test(expected = IllegalArgumentException.class) testBucketBoundariesMustNotBeEmpty()60 public void testBucketBoundariesMustNotBeEmpty() { 61 new AmbientBrightnessDayStats(LocalDate.now(), new float[]{}); 62 } 63 64 @Test(expected = IllegalArgumentException.class) testStatsAndBoundariesMustHaveSameLength()65 public void testStatsAndBoundariesMustHaveSameLength() { 66 float[] stats = Arrays.copyOf(STATS, STATS.length + 1); 67 stats[stats.length - 1] = 0; 68 new AmbientBrightnessDayStats(LOCAL_DATE, BUCKET_BOUNDARIES, stats); 69 } 70 71 @Test testAmbientBrightnessDayStatsAdd()72 public void testAmbientBrightnessDayStatsAdd() { 73 AmbientBrightnessDayStats dayStats = new AmbientBrightnessDayStats(LOCAL_DATE, 74 BUCKET_BOUNDARIES); 75 dayStats.log(0, 1); 76 dayStats.log(0.5f, 1.5f); 77 dayStats.log(50, 12.5f); 78 dayStats.log(2000, 1.24f); 79 dayStats.log(-10, 0.5f); 80 assertEquals(4, dayStats.getStats().length); 81 assertEquals(2.5f, dayStats.getStats()[0], 0); 82 assertEquals(0, dayStats.getStats()[1], 0); 83 assertEquals(12.5f, dayStats.getStats()[2], 0); 84 assertEquals(1.24f, dayStats.getStats()[3], 0); 85 } 86 87 @Test testGetters()88 public void testGetters() { 89 AmbientBrightnessDayStats dayStats = new AmbientBrightnessDayStats(LOCAL_DATE, 90 BUCKET_BOUNDARIES, STATS); 91 assertEquals(LOCAL_DATE, dayStats.getLocalDate()); 92 assertArrayEquals(BUCKET_BOUNDARIES, dayStats.getBucketBoundaries(), 0); 93 assertArrayEquals(STATS, dayStats.getStats(), 0); 94 } 95 96 @Test testParcelUnparcelAmbientBrightnessDayStats()97 public void testParcelUnparcelAmbientBrightnessDayStats() { 98 LocalDate today = LocalDate.now(); 99 AmbientBrightnessDayStats stats = new AmbientBrightnessDayStats(today, 100 new float[]{0, 1, 10, 100}, new float[]{1.3f, 2.6f, 5.8f, 10}); 101 // Parcel the data 102 Parcel parcel = Parcel.obtain(); 103 stats.writeToParcel(parcel, 0); 104 byte[] parceled = parcel.marshall(); 105 parcel.recycle(); 106 // Unparcel and check that it has not changed 107 parcel = Parcel.obtain(); 108 parcel.unmarshall(parceled, 0, parceled.length); 109 parcel.setDataPosition(0); 110 AmbientBrightnessDayStats statsAgain = AmbientBrightnessDayStats.CREATOR.createFromParcel( 111 parcel); 112 assertEquals(stats, statsAgain); 113 } 114 115 @Test testAmbientBrightnessDayStatsEquals()116 public void testAmbientBrightnessDayStatsEquals() { 117 AmbientBrightnessDayStats emptyDayStats = new AmbientBrightnessDayStats(LOCAL_DATE, 118 BUCKET_BOUNDARIES); 119 AmbientBrightnessDayStats identicalEmptyDayStats = new AmbientBrightnessDayStats(LOCAL_DATE, 120 BUCKET_BOUNDARIES, new float[BUCKET_BOUNDARIES.length]); 121 assertEquals(emptyDayStats, identicalEmptyDayStats); 122 assertEquals(emptyDayStats.hashCode(), identicalEmptyDayStats.hashCode()); 123 124 AmbientBrightnessDayStats dayStats = new AmbientBrightnessDayStats(LOCAL_DATE, 125 BUCKET_BOUNDARIES, STATS); 126 AmbientBrightnessDayStats identicalDayStats = new AmbientBrightnessDayStats(LOCAL_DATE, 127 BUCKET_BOUNDARIES, STATS); 128 assertEquals(dayStats, identicalDayStats); 129 assertEquals(dayStats.hashCode(), identicalDayStats.hashCode()); 130 131 assertNotEquals(emptyDayStats, dayStats); 132 assertNotEquals(emptyDayStats.hashCode(), dayStats.hashCode()); 133 134 AmbientBrightnessDayStats differentDateDayStats = new AmbientBrightnessDayStats( 135 LOCAL_DATE.plusDays(1), BUCKET_BOUNDARIES, STATS); 136 assertNotEquals(dayStats, differentDateDayStats); 137 assertNotEquals(dayStats.hashCode(), differentDateDayStats.hashCode()); 138 139 float[] differentStats = Arrays.copyOf(STATS, STATS.length); 140 differentStats[differentStats.length - 1] += 5f; 141 AmbientBrightnessDayStats differentStatsDayStats = new AmbientBrightnessDayStats(LOCAL_DATE, 142 BUCKET_BOUNDARIES, differentStats); 143 assertNotEquals(dayStats, differentDateDayStats); 144 assertNotEquals(dayStats.hashCode(), differentStatsDayStats.hashCode()); 145 146 float[] differentBucketBoundaries = Arrays.copyOf(BUCKET_BOUNDARIES, 147 BUCKET_BOUNDARIES.length); 148 differentBucketBoundaries[differentBucketBoundaries.length - 1] += 100f; 149 AmbientBrightnessDayStats differentBoundariesDayStats = new AmbientBrightnessDayStats( 150 LOCAL_DATE, differentBucketBoundaries, STATS); 151 assertNotEquals(dayStats, differentBoundariesDayStats); 152 assertNotEquals(dayStats.hashCode(), differentBoundariesDayStats.hashCode()); 153 } 154 155 private interface ExceptionRunnable { run()156 void run() throws Exception; 157 } 158 assertThrows(Class<? extends Throwable> exceptionClass, ExceptionRunnable r)159 private static void assertThrows(Class<? extends Throwable> exceptionClass, 160 ExceptionRunnable r) { 161 try { 162 r.run(); 163 } catch (Throwable e) { 164 assertTrue("Expected exception type " + exceptionClass.getName() + " but got " 165 + e.getClass().getName(), exceptionClass.isAssignableFrom(e.getClass())); 166 return; 167 } 168 fail("Expected exception type " + exceptionClass.getName() 169 + ", but no exception was thrown"); 170 } 171 172 } 173