public void testPassThroughToString() throws Exception {
final RandomLongInput input = new RandomLongInput(10, 1);
input.setSeed(0L);
runTest(new MapReduceSpecification.Builder<>(input, new Mod37Mapper(), ValueProjectionReducer
.<String, Long>create(), new StringOutput<Long, List<AppEngineFile>>(",",
new BlobFileOutput("Foo-%02d", "testType")))
.setKeyMarshaller(Marshallers.getStringMarshaller())
.setValueMarshaller(Marshallers.getLongMarshaller()).setJobName("TestPassThroughToString")
.build(), new Verifier<List<AppEngineFile>>() {
@Override
public void verify(MapReduceResult<List<AppEngineFile>> result) throws Exception {