taegeonum commented on a change in pull request #137: [NEMO-232] Implement
InputWatermarkManager
URL: https://github.com/apache/incubator-nemo/pull/137#discussion_r229901748
##########
File path:
runtime/executor/src/test/java/org/apache/nemo/runtime/executor/task/TaskExecutorTest.java
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@@ -330,6 +261,74 @@ public void testParentTaskDataFetching() throws Exception
{
assertTrue(checkEqualElements(elements,
runtimeEdgeToOutputData.get(taskOutEdge.getId())));
}
+ /**
+ * The DAG of the task to test will looks like:
+ * source1 -> vertex1 -> vertex2
+ * source2 -> vertex3 ->
+ *
+ * The vertex2 has two incoming edges (from vertex1 and vertex3)
+ * and we test if TaskExecutor handles data and watermarks correctly in this
situation.
+ *
+ * The source1 emits watermark 500, 1800 and source2 emits watermark 1000.
+ * The vertex2 should receive and emit watermarks 500 and 1000.
Review comment:
Good point! I will fix this test
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