sdk/sources/android-23/com/android/mediaframeworktest/unit/MediaPlayerSetVolumeStateUnitTest.java

   1 /*
   2  * Copyright (C) 2008 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 com.android.mediaframeworktest.unit;
  18
  19 import android.media.MediaPlayer;
  20 import android.test.AndroidTestCase;
  21 import android.test.suitebuilder.annotation.LargeTest;
  22
  23 /**
  24  * Unit test class to test the set of valid and invalid states that
  25  * MediaPlayer.setVolume() method can be called.
  26  */
  27 public class MediaPlayerSetVolumeStateUnitTest extends AndroidTestCase implements MediaPlayerMethodUnderTest {
  28     private MediaPlayerStateUnitTestTemplate mTestTemplate = new MediaPlayerStateUnitTestTemplate();
  29
  30     /**
  31      * 1. It is valid to call setVolume() in the following states:
  32      *    {Idle, Initialized, Stopped, Prepared, Started, Paused, PlaybackComplted}.
  33      * 2. It is invalid to call setVolume() in the following states:
  34      *    {Error}
  35      *
  36      * @param stateErrors the MediaPlayerStateErrors to check against.
  37      */
  38     public void checkStateErrors(MediaPlayerStateErrors stateErrors) {
  39         // Valid states.
  40         assertTrue(!stateErrors.errorInStartedState);
  41         assertTrue(!stateErrors.errorInStartedStateAfterPause);
  42         assertTrue(!stateErrors.errorInPausedState);
  43         assertTrue(!stateErrors.errorInPreparedState);
  44         assertTrue(!stateErrors.errorInPreparedStateAfterStop);
  45         assertTrue(!stateErrors.errorInPlaybackCompletedState);
  46         assertTrue(!stateErrors.errorInIdleStateAfterReset);
  47         assertTrue(!stateErrors.errorInInitializedState);
  48         assertTrue(!stateErrors.errorInStoppedState);
  49         assertTrue(!stateErrors.errorInIdleState);
  50
  51         // Invalid states.
  52         assertTrue(stateErrors.errorInErrorState);
  53     }
  54
  55     public void invokeMethodUnderTest(MediaPlayer player) {
  56         player.setVolume(0.5f, 0.5f);
  57     }
  58
  59     @LargeTest
  60     public void testSetVolume() {
  61         mTestTemplate.runTestOnMethod(this);
  62     }
  63
  64     @Override
  65     public String toString() {
  66         return "setVolume()";
  67     }
  68 }