@Test
	public void testNullDateRange() {
		GregorianCalendar[] nullRange = null;
		Tree tree = new Tree("testTree", nullRange);

		Field field;
		
		try {
			field = tree.getClass().getDeclaredField("bloomRanges");
			field.setAccessible(true);
			ArrayList<GregorianCalendar[]> rangeList = (ArrayList<GregorianCalendar[]>) field.get(tree);	
			assertEquals(rangeList.size(), 0);
		} catch (NoSuchFieldException | SecurityException | IllegalArgumentException | IllegalAccessException e) {}
	}