DbLoadMerger.merge(makeUpdateEventData(KEY_VALUE_NEW1, KEY_VALUE_NEW2), mergeMap);
DbLoadMerger.merge(makeUpdateEventData(KEY_VALUE_NEW2, KEY_VALUE_NEW3), mergeMap);
DbLoadMerger.merge(makeUpdateEventData(KEY_VALUE_NEW3, KEY_VALUE_NEW4), mergeMap);
for (Entry<RowKey, EventData> entry : mergeMap.entrySet()) {
RowKey key = entry.getKey();
EventColumn keyColumn = key.getKeys().get(0);
Assert.assertEquals(KEY_VALUE_NEW4, keyColumn.getColumnValue());
Assert.assertEquals(KEY_NAME, keyColumn.getColumnName());
EventData eventData = entry.getValue();
Assert.assertEquals(SCHEMA_NAME, eventData.getSchemaName());