@Test
    @LoadGraphWith(MODERN)
    public void shouldSupportMultipleMapReduceJobs() throws Exception {
        final ComputerResult results = graphProvider.getGraphComputer(graph)
                .program(new VertexProgramH())
                .mapReduce(new MapReduceH1())
                .mapReduce(new MapReduceH2()).submit().get();
        assertEquals(60, results.memory().<Integer>get("a").intValue());
        assertEquals(1, results.memory().<Integer>get("b").intValue());
    }
@author Marko A. Rodriguez (http://markorodriguez.com)
gremlin-test/src/main/java/org/apache/tinkerpop/gremlin/process/computer/GraphComputerTest.java