Fix a test case failure when there is no back-facing camera on a device

Change-Id: I427b2e03b266ff2d92c6fe64f732a256d285020e
related-to-bug: 6538628

Author: James Dong

media/tests/MediaFrameworkTest/src/com/android/mediaframeworktest/stress/MediaRecorderStressTest.java

@@ -415,59 +415,61 @@ public void testStressTimeLapse() throws Exception {
         output.write("Total number of loops: " + NUMBER_OF_TIME_LAPSE_LOOPS + "\n");
 
         try {
-            output.write("No of loop: ");
-            for (int i = 0; i < NUMBER_OF_TIME_LAPSE_LOOPS; i++) {
-                filename = OUTPUT_FILE + i + OUTPUT_FILE_EXT;
-                Log.v(TAG, filename);
-                runOnLooper(new Runnable() {
-                    @Override
-                    public void run() {
-                        mRecorder = new MediaRecorder();
+            for (int j = 0, n = Camera.getNumberOfCameras(); j < n; j++) {
+                output.write("No of loop: camera " + j);
+                for (int i = 0; i < NUMBER_OF_TIME_LAPSE_LOOPS; i++) {
+                    filename = OUTPUT_FILE + j + "_" + i + OUTPUT_FILE_EXT;
+                    Log.v(TAG, filename);
+                    runOnLooper(new Runnable() {
+                        @Override
+                        public void run() {
+                            mRecorder = new MediaRecorder();
+                        }
+                    });
+
+                    // Set callback
+                    mRecorder.setOnErrorListener(mRecorderErrorCallback);
+
+                    // Set video source
+                    mRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
+
+                    // Set camcorder profile for time lapse
+                    CamcorderProfile profile =
+                        CamcorderProfile.get(j, CamcorderProfile.QUALITY_TIME_LAPSE_HIGH);
+                    mRecorder.setProfile(profile);
+
+                    // Set the timelapse setting; 0.1 = 10 sec timelapse, 0.5 = 2 sec timelapse, etc.
+                    // http://developer.android.com/guide/topics/media/camera.html#time-lapse-video
+                    mRecorder.setCaptureRate(captureRate);
+
+                    // Set output file
+                    mRecorder.setOutputFile(filename);
+
+                    // Set the preview display
+                    Log.v(TAG, "mediaRecorder setPreviewDisplay");
+                    mRecorder.setPreviewDisplay(mSurfaceHolder.getSurface());
+
+                    mRecorder.prepare();
+                    mRecorder.start();
+                    Thread.sleep(record_duration);
+                    Log.v(TAG, "Before stop");
+                    mRecorder.stop();
+                    mRecorder.release();
+
+                    // Start the playback
+                    MediaPlayer mp = new MediaPlayer();
+                    mp.setDataSource(filename);
+                    mp.setDisplay(mSurfaceHolder);
+                    mp.prepare();
+                    mp.start();
+                    Thread.sleep(TIME_LAPSE_PLAYBACK_WAIT_TIME);
+                    mp.release();
+                    validateRecordedVideo(filename);
+                    if (remove_video) {
+                        removeRecordedVideo(filename);
                     }
-                });
-
-                // Set callback
-                mRecorder.setOnErrorListener(mRecorderErrorCallback);
-
-                // Set video source
-                mRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
-
-                // Set camcorder profile for time lapse
-                CamcorderProfile profile =
-                        CamcorderProfile.get(CamcorderProfile.QUALITY_TIME_LAPSE_HIGH);
-                mRecorder.setProfile(profile);
-
-                // Set the timelapse setting; 0.1 = 10 sec timelapse, 0.5 = 2 sec timelapse, etc.
-                // http://developer.android.com/guide/topics/media/camera.html#time-lapse-video
-                mRecorder.setCaptureRate(captureRate);
-
-                // Set output file
-                mRecorder.setOutputFile(filename);
-
-                // Set the preview display
-                Log.v(TAG, "mediaRecorder setPreviewDisplay");
-                mRecorder.setPreviewDisplay(mSurfaceHolder.getSurface());
-
-                mRecorder.prepare();
-                mRecorder.start();
-                Thread.sleep(record_duration);
-                Log.v(TAG, "Before stop");
-                mRecorder.stop();
-                mRecorder.release();
-
-                // Start the playback
-                MediaPlayer mp = new MediaPlayer();
-                mp.setDataSource(filename);
-                mp.setDisplay(mSurfaceHolder);
-                mp.prepare();
-                mp.start();
-                Thread.sleep(TIME_LAPSE_PLAYBACK_WAIT_TIME);
-                mp.release();
-                validateRecordedVideo(filename);
-                if(remove_video) {
-                  removeRecordedVideo(filename);
+                    output.write(", " + i);
                 }
-                output.write(", " + i);
             }
         }
         catch (IllegalStateException e) {