public void TestExecuteSimple()
{
MapReduceBuilder mrb = mrcol.MapReduceBuilder();
MapReduce mr = mrb.Map(mapfunction).Reduce(reducefunction).Execute();
Assert.IsNotNull(mr.Result);
Assert.IsTrue(mr.Result.Ok);
Assert.AreEqual(4, mr.Result.InputCount);
Assert.AreEqual(6, mr.Result.EmitCount);
Assert.AreEqual(3, mr.Result.OutputCount);
}