@Test(expected = IllegalArgumentException.class)
	public void testGetLearningTimeException() {
		
		Map<Integer, String> indexToState = new TreeMap<Integer,String>(); indexToState.put(0, "s1"); indexToState.put(1, "s2");  indexToState.put(2, "s3");
		List<IClassificationResult<Double>> dataset = generateDataset1();
		
		IClassificationSingleRunPerformances<Double> performances = new ClassificationStandardPerformances<Double>(indexToState);
		performances.addResults(dataset);
		
		assertTrue( Double.isNaN( performances.getLearningTime()));
		performances.setLearningTime( -0.1);
	}