@Test
public void testAllReduceDriverImmutableEmpty() {
try {
TestTaskContext<ReduceFunction<Tuple2<String, Integer>>, Tuple2<String, Integer>> context =
new TestTaskContext<ReduceFunction<Tuple2<String, Integer>>, Tuple2<String, Integer>>();
List<Tuple2<String, Integer>> data = DriverTestData.createReduceImmutableData();
TypeInformation<Tuple2<String, Integer>> typeInfo = TypeExtractor.getForObject(data.get(0));
MutableObjectIterator<Tuple2<String, Integer>> input = EmptyMutableObjectIterator.get();
context.setDriverStrategy(DriverStrategy.ALL_REDUCE);
context.setInput1(input, typeInfo.createSerializer());
context.setCollector(new DiscardingOutputCollector<Tuple2<String, Integer>>());
AllReduceDriver<Tuple2<String, Integer>> driver =
new AllReduceDriver<Tuple2<String, Integer>>();
driver.setup(context);
driver.prepare();
driver.run();
} catch (Exception e) {
System.err.println(e.getMessage());
e.printStackTrace();
Assert.fail(e.getMessage());
}
}
@Test
public void testImmutableEmpty() {
try {
TestTaskContext<ReduceFunction<Tuple2<String, Integer>>, Tuple2<String, Integer>> context =
new TestTaskContext<ReduceFunction<Tuple2<String, Integer>>, Tuple2<String, Integer>>(
1024 * 1024);
context.getTaskConfig().setRelativeMemoryDriver(0.5);
List<Tuple2<String, Integer>> data = DriverTestData.createReduceImmutableData();
Collections.shuffle(data);
TupleTypeInfo<Tuple2<String, Integer>> typeInfo =
(TupleTypeInfo<Tuple2<String, Integer>>) TypeExtractor.getForObject(data.get(0));
MutableObjectIterator<Tuple2<String, Integer>> input = EmptyMutableObjectIterator.get();
context.setDriverStrategy(DriverStrategy.SORTED_PARTIAL_REDUCE);
TypeComparator<Tuple2<String, Integer>> comparator =
typeInfo.createComparator(new int[] {0}, new boolean[] {true}, 0, new ExecutionConfig());
GatheringCollector<Tuple2<String, Integer>> result =
new GatheringCollector<Tuple2<String, Integer>>(
typeInfo.createSerializer(new ExecutionConfig()));
context.setInput1(input, typeInfo.createSerializer(new ExecutionConfig()));
context.setComparator1(comparator);
context.setCollector(result);
ReduceCombineDriver<Tuple2<String, Integer>> driver =
new ReduceCombineDriver<Tuple2<String, Integer>>();
driver.setup(context);
driver.prepare();
driver.run();
Assert.assertEquals(0, result.getList().size());
} catch (Exception e) {
System.err.println(e.getMessage());
e.printStackTrace();
Assert.fail(e.getMessage());
}
}