@Test
public void testFillTransform_EmptyMetricsList() {

	Transform fillTransform = new FillTransform();
	List<String> constants = new ArrayList<>();
	
	constants.add("100s");
    constants.add("1s");
    constants.add("100.0");
    constants.add(System.currentTimeMillis() + "");
    constants.add("false");
    
    List<Metric> metrics = fillTransform.transform(null, Arrays.asList(), constants);
	assertEquals(metrics.size(), 0);
}