@Test
public void testKeyGroupStartIndexSetting() {

	int startKeyGroupIdx = 7;
	int endKeyGroupIdx = 21;
	KeyGroupsList testKeyGroupList = new KeyGroupRange(startKeyGroupIdx, endKeyGroupIdx);
	TestKeyContext keyContext = new TestKeyContext();
	TestProcessingTimeService processingTimeService = new TestProcessingTimeService();
	HeapInternalTimerService<Integer, String> service =
			new HeapInternalTimerService<>(
					testKeyGroupList.getNumberOfKeyGroups(),
					testKeyGroupList,
					keyContext,
					processingTimeService);
	Assert.assertEquals(startKeyGroupIdx, service.getLocalKeyGroupRangeStartIdx());
}