media-compat/tests/src/android/support/v4/media/AudioAttributesCompatTest.java

/*
 * Copyright (C) 2016 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package android.support.v4.media;

import static org.hamcrest.core.IsEqual.equalTo;
import static org.hamcrest.core.IsNot.not;
import static org.junit.Assert.assertThat;

import android.media.AudioAttributes;
import android.media.AudioManager;
import android.os.Build;
import android.support.test.filters.SdkSuppress;
import android.support.test.filters.SmallTest;
import android.support.test.runner.AndroidJUnit4;

import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;

/** Test {@link AudioAttributesCompat}. */
@SmallTest
@RunWith(AndroidJUnit4.class)
public class AudioAttributesCompatTest {
    // some macros for conciseness
    static final AudioAttributesCompat.Builder mkBuilder(
            @AudioAttributesCompat.AttributeContentType int type,
            @AudioAttributesCompat.AttributeUsage int usage) {
        return new AudioAttributesCompat.Builder().setContentType(type).setUsage(usage);
    }

    static final AudioAttributesCompat.Builder mkBuilder(int legacyStream) {
        return new AudioAttributesCompat.Builder().setLegacyStreamType(legacyStream);
    }

    // some objects we'll toss around
    Object mMediaAA;
    AudioAttributesCompat mMediaAAC,
            mMediaLegacyAAC,
            mMediaAACFromAA,
            mNotificationAAC,
            mNotificationLegacyAAC;

    @Before
    @SdkSuppress(minSdkVersion = 21)
    public void setUpApi21() {
        if (Build.VERSION.SDK_INT < 21) return;
        mMediaAA =
                new AudioAttributes.Builder()
                        .setContentType(AudioAttributes.CONTENT_TYPE_MUSIC)
                        .setUsage(AudioAttributes.USAGE_MEDIA)
                        .build();
        mMediaAACFromAA = AudioAttributesCompat.wrap((AudioAttributes) mMediaAA);
    }

    @Before
    public void setUp() {
        mMediaAAC =
                mkBuilder(AudioAttributesCompat.CONTENT_TYPE_MUSIC,
                        AudioAttributesCompat.USAGE_MEDIA).build();
        mMediaLegacyAAC = mkBuilder(AudioManager.STREAM_MUSIC).build();
        mNotificationAAC =
                mkBuilder(AudioAttributesCompat.CONTENT_TYPE_SONIFICATION,
                        AudioAttributesCompat.USAGE_NOTIFICATION)
                        .build();
        mNotificationLegacyAAC = mkBuilder(AudioManager.STREAM_NOTIFICATION).build();
    }

    @Test
    @SdkSuppress(minSdkVersion = 21)
    public void testCreateWithAudioAttributesApi21() {
        assertThat(mMediaAACFromAA, not(equalTo(null)));
        assertThat((AudioAttributes) mMediaAACFromAA.unwrap(), equalTo(mMediaAA));
        assertThat(
                (AudioAttributes) mMediaAACFromAA.unwrap(),
                equalTo(new AudioAttributes.Builder((AudioAttributes) mMediaAA).build()));
    }

    @Test
    @SdkSuppress(minSdkVersion = 21)
    public void testEqualityApi21() {
        assertThat("self equality", mMediaAACFromAA, equalTo(mMediaAACFromAA));
        assertThat("different things", mMediaAACFromAA, not(equalTo(mNotificationAAC)));
    }

    @Test
    public void testEquality() {
        assertThat("self equality", mMediaAAC, equalTo(mMediaAAC));
        assertThat(
                "equal to clone",
                mMediaAAC,
                equalTo(new AudioAttributesCompat.Builder(mMediaAAC).build()));
        assertThat("different things are different", mMediaAAC, not(equalTo(mNotificationAAC)));
        assertThat("different things are different 2", mNotificationAAC, not(equalTo(mMediaAAC)));
        assertThat(
                "equal to clone 2",
                mNotificationAAC,
                equalTo(new AudioAttributesCompat.Builder(mNotificationAAC).build()));
    }

    @Test
    public void testGetters() {
        assertThat(mMediaAAC.getContentType(), equalTo(AudioAttributesCompat.CONTENT_TYPE_MUSIC));
        assertThat(mMediaAAC.getUsage(), equalTo(AudioAttributesCompat.USAGE_MEDIA));
        assertThat(mMediaAAC.getFlags(), equalTo(0));
    }

    @Test
    public void testLegacyStreamTypeInference() {
        assertThat(mMediaAAC.getLegacyStreamType(), equalTo(AudioManager.STREAM_MUSIC));
        assertThat(mMediaLegacyAAC.getLegacyStreamType(), equalTo(AudioManager.STREAM_MUSIC));
        assertThat(
                mNotificationAAC.getLegacyStreamType(), equalTo(AudioManager.STREAM_NOTIFICATION));
        assertThat(
                mNotificationLegacyAAC.getLegacyStreamType(),
                equalTo(AudioManager.STREAM_NOTIFICATION));
    }

    @Test
    @SdkSuppress(minSdkVersion = 21)
    public void testLegacyStreamTypeInferenceApi21() {
        assertThat(mMediaAACFromAA.getLegacyStreamType(), equalTo(AudioManager.STREAM_MUSIC));
    }

    @Test
    public void testLegacyStreamTypeInferenceInLegacyMode() {
        // the builders behave differently based on the value of this only-for-testing global
        // so we need our very own objects inside this method
        AudioAttributesCompat.setForceLegacyBehavior(true);

        AudioAttributesCompat mediaAAC =
                mkBuilder(AudioAttributesCompat.CONTENT_TYPE_MUSIC,
                        AudioAttributesCompat.USAGE_MEDIA).build();
        AudioAttributesCompat mediaLegacyAAC = mkBuilder(AudioManager.STREAM_MUSIC).build();

        AudioAttributesCompat notificationAAC =
                mkBuilder(AudioAttributesCompat.CONTENT_TYPE_SONIFICATION,
                        AudioAttributesCompat.USAGE_NOTIFICATION)
                        .build();
        AudioAttributesCompat notificationLegacyAAC =
                mkBuilder(AudioManager.STREAM_NOTIFICATION).build();

        assertThat(mediaAAC.getLegacyStreamType(), equalTo(AudioManager.STREAM_MUSIC));
        assertThat(mediaLegacyAAC.getLegacyStreamType(), equalTo(AudioManager.STREAM_MUSIC));
        assertThat(
                notificationAAC.getLegacyStreamType(), equalTo(AudioManager.STREAM_NOTIFICATION));
        assertThat(
                notificationLegacyAAC.getLegacyStreamType(),
                equalTo(AudioManager.STREAM_NOTIFICATION));
    }

    @After
    public void cleanUp() {
        AudioAttributesCompat.setForceLegacyBehavior(false);
    }
}