public void testCombineMix() {
   ArrayList<String> files = new ArrayList<String>();
   files.add("/sdcard/one.wav");
   files.add("/sdcard/two.wav");
   String result = mController.combineMix(files, randomFileName());
   assertNotNull(result);
 }
 public void testTrim() {
   String result = mController.trimAudio("/sdcard/one.wav", "0:0:3", null, randomFileName());
   assertNotNull(result);
 }
 public void testFade() {
   // simple fade in
   String result = mController.fadeAudio("/sdcard/one.wav", "t", "3", "0", "0", randomFileName());
   assertNotNull(result);
 }
 public void testLength() {
   double length = mController.getLength("/sdcard/one.wav");
   assertEquals(7.274667, length);
 }