Position lastest = eventStore.getLatestPosition();
Assert.assertEquals(first, CanalEventUtils.createPosition(buildEvent("1", 1L, 1L)));
Assert.assertEquals(lastest, CanalEventUtils.createPosition(buildEvent("1", 1L, 1L + bufferSize - 1)));
System.out.println("start get");
Events<Event> entrys1 = eventStore.tryGet(first, bufferSize);
System.out.println("first get size : " + entrys1.getEvents().size());
Assert.assertTrue(entrys1.getEvents().size() == bufferSize);
Assert.assertEquals(first, entrys1.getPositionRange().getStart());
Assert.assertEquals(lastest, entrys1.getPositionRange().getEnd());