@Test
public void testCreateOrderedSensorNameArray() {

    final Map<String, List<Variable>> sensorMap = new HashMap<>();
    sensorMap.put("Zenzi", null);
    sensorMap.put("Franz", null);
    sensorMap.put("Kevin", null);
    sensorMap.put("Walpurga", null);
    final String[] nameArray = MmdTool.createOrderedSensorNameArray(sensorMap);
    assertEquals(4, nameArray.length);
    assertEquals("Franz", nameArray[0]);
    assertEquals("Kevin", nameArray[1]);
    assertEquals("Walpurga", nameArray[2]);
    assertEquals("Zenzi", nameArray[3]);
}