media/tests/MediaFrameworkTest/src/com/android/mediaframeworktest/unit/MediaRecorderPrepareStateUnitTest.java

/*
 * Copyright (C) 2008 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 com.android.mediaframeworktest.unit;

import android.media.MediaRecorder;
import android.test.AndroidTestCase;
import android.test.suitebuilder.annotation.MediumTest;
import android.test.suitebuilder.annotation.Suppress;
import java.io.IOException;

/**
 * Unit test class to test the set of valid and invalid states that
 * MediaRecorder.prepare() method can be called.
 */
public class MediaRecorderPrepareStateUnitTest extends AndroidTestCase implements MediaRecorderMethodUnderTest {
    private MediaRecorderStateUnitTestTemplate mTestTemplate = new MediaRecorderStateUnitTestTemplate();
    
    /**
     * 1. It is valid to call prepare() in the following states:
     *    {DataSourceConfigured}.
     * 2. It is invalid to call prepare() in the following states:
     *    {Prepared, Initial, Initialized, Recording, Error}
     *    
     * @param stateErrors the MediaRecorderStateErrors to check against.
     */
    public void checkStateErrors(MediaRecorderStateErrors stateErrors) {
        // Valid states.
        assertTrue(!stateErrors.errorInDataSourceConfiguredState);
        
        // Invalid states.
        assertTrue(stateErrors.errorInPreparedState);
        assertTrue(stateErrors.errorInRecordingState);
        assertTrue(stateErrors.errorInInitialState);
        assertTrue(stateErrors.errorInInitialStateAfterReset);
        assertTrue(stateErrors.errorInInitialStateAfterStop);
        assertTrue(stateErrors.errorInInitializedState);
        assertTrue(stateErrors.errorInErrorState);
    }

    public void invokeMethodUnderTest(MediaRecorder recorder) {
        try {
            recorder.prepare();
        } catch (IOException exception) {
            throw new RuntimeException();
        }
    }

    @MediumTest
    public void testPrepare() {
        mTestTemplate.runTestOnMethod(this);
    }
    
    @Override
    public String toString() {
        return "prepare()";
    }
}