ParallelDoOptions.builder().sourceTargets(rd.getSourceTargets()).build());
PCollection<String> output = op.values();
output.write(To.textFile(out));
MRPipelineExecution exec = p.runAsync();
exec.waitUntilDone();
List<MRJob> jobs = exec.getJobs();
Assert.assertEquals(2, jobs.size());
Assert.assertEquals(0, jobs.get(0).getJob().getNumReduceTasks());
Assert.assertEquals(0, jobs.get(1).getJob().getNumReduceTasks());
}