}
@Test
public void testLongDoubleMessageStore() throws IOException {
LongDoubleMessageStore messageStore =
new LongDoubleMessageStore(service, new DoubleSumMessageCombiner());
insertLongDoubleMessages(messageStore);
Iterable<DoubleWritable> m0 =
messageStore.getVertexMessages(new LongWritable(0));
Assert.assertEquals(1, Iterables.size(m0));