1996fanrui commented on code in PR #24757:
URL: https://github.com/apache/flink/pull/24757#discussion_r1637386871
##########
flink-runtime/src/test/java/org/apache/flink/runtime/source/coordinator/SourceCoordinatorAlignmentTest.java:
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@@ -310,6 +310,53 @@ void testWatermarkAggregatorRandomly() {
testWatermarkAggregatorRandomly(10, 10000, true, false);
}
+ @Test
+ void testWatermarkAlignmentWhileSubtaskFinished() throws Exception {
+ long maxDrift = 1000L;
+ WatermarkAlignmentParams params =
+ new WatermarkAlignmentParams(maxDrift, "group1", maxDrift);
+
+ final Source<Integer, MockSourceSplit, Set<MockSourceSplit>>
mockSource =
+ createMockSource();
+
+ sourceCoordinator =
+ new SourceCoordinator<MockSourceSplit, Set<MockSourceSplit>>(
+ OPERATOR_NAME,
+ mockSource,
+ getNewSourceCoordinatorContext(),
+ new CoordinatorStoreImpl(),
+ params,
+ null) {
+ @Override
+ void announceCombinedWatermark() {
+ super.announceCombinedWatermark();
+ }
+ };
+
+ sourceCoordinator.start();
+
+ int subtask0 = 0;
+ int subtask1 = 1;
+
+ setReaderTaskReady(sourceCoordinator, subtask0, 0);
+ setReaderTaskReady(sourceCoordinator, subtask1, 0);
+ registerReader(subtask0);
+ registerReader(subtask1);
+
+ reportWatermarkEvent(sourceCoordinator, subtask0, 42);
+ assertLatestWatermarkAlignmentEvent(subtask0, 1042);
+
+ reportWatermarkEvent(sourceCoordinator, subtask1, 44);
+ assertLatestWatermarkAlignmentEvent(subtask1, 1042);
+
+ // mock noMoreSplits event
+ assertHasNoMoreSplits(subtask0, true);
Review Comment:
> My intention is to add a test case to simulate the sending of the
noMoreSplits event
Actually, this test is testing the watermark result when the watermark of
one subtask is Long.Max, right?
I think this test can be removed.
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