1 /* 2 * Copyright 2022 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.bluetooth; 18 19 import static com.google.common.truth.Truth.assertThat; 20 21 import android.media.AudioFormat; 22 import android.os.Parcel; 23 24 import androidx.test.filters.SmallTest; 25 import androidx.test.runner.AndroidJUnit4; 26 27 import org.junit.Test; 28 import org.junit.runner.RunWith; 29 30 /** 31 * Test cases for {@link BluetoothAudioConfig}. 32 */ 33 @SmallTest 34 @RunWith(AndroidJUnit4.class) 35 public class BluetoothAudioConfigTest { 36 37 private static final int TEST_SAMPLE_RATE = 44; 38 private static final int TEST_CHANNEL_COUNT = 1; 39 40 @Test createBluetoothAudioConfig()41 public void createBluetoothAudioConfig() { 42 BluetoothAudioConfig audioConfig = new BluetoothAudioConfig( 43 TEST_SAMPLE_RATE, 44 TEST_CHANNEL_COUNT, 45 AudioFormat.ENCODING_PCM_16BIT 46 ); 47 48 assertThat(audioConfig.getSampleRate()).isEqualTo(TEST_SAMPLE_RATE); 49 assertThat(audioConfig.getChannelConfig()).isEqualTo(TEST_CHANNEL_COUNT); 50 assertThat(audioConfig.getAudioFormat()).isEqualTo(AudioFormat.ENCODING_PCM_16BIT); 51 } 52 53 @Test writeToParcel()54 public void writeToParcel() { 55 BluetoothAudioConfig originalConfig = new BluetoothAudioConfig( 56 TEST_SAMPLE_RATE, 57 TEST_CHANNEL_COUNT, 58 AudioFormat.ENCODING_PCM_16BIT 59 ); 60 61 Parcel parcel = Parcel.obtain(); 62 originalConfig.writeToParcel(parcel, 0); 63 parcel.setDataPosition(0); 64 65 BluetoothAudioConfig configOut = BluetoothAudioConfig.CREATOR.createFromParcel(parcel); 66 parcel.recycle(); 67 68 assertThat(configOut.getSampleRate()) 69 .isEqualTo(originalConfig.getSampleRate()); 70 assertThat(configOut.getChannelConfig()) 71 .isEqualTo(originalConfig.getChannelConfig()); 72 assertThat(configOut.getAudioFormat()) 73 .isEqualTo(originalConfig.getAudioFormat()); 74 } 75 76 @Test bluetoothAudioConfigHashCode()77 public void bluetoothAudioConfigHashCode() { 78 BluetoothAudioConfig audioConfig = new BluetoothAudioConfig( 79 TEST_SAMPLE_RATE, 80 TEST_CHANNEL_COUNT, 81 AudioFormat.ENCODING_PCM_16BIT 82 ); 83 84 int hashCode = audioConfig.getSampleRate() | (audioConfig.getChannelConfig() << 24) | ( 85 audioConfig.getAudioFormat() << 28); 86 int describeContents = 0; 87 88 assertThat(audioConfig.hashCode()).isEqualTo(hashCode); 89 assertThat(audioConfig.describeContents()).isEqualTo(describeContents); 90 } 91 92 @Test bluetoothAudioConfigToString()93 public void bluetoothAudioConfigToString() { 94 BluetoothAudioConfig audioConfig = new BluetoothAudioConfig( 95 TEST_SAMPLE_RATE, 96 TEST_CHANNEL_COUNT, 97 AudioFormat.ENCODING_PCM_16BIT 98 ); 99 100 String audioConfigString = audioConfig.toString(); 101 String expectedToString = "{mSampleRate:" + audioConfig.getSampleRate() 102 + ",mChannelConfig:" + audioConfig.getChannelConfig() 103 + ",mAudioFormat:" + audioConfig.getAudioFormat() + "}"; 104 105 assertThat(audioConfigString).isEqualTo(expectedToString); 106 } 107 } 108