Java Code Examples for org.apache.flink.streaming.runtime.tasks.StreamTaskTestHarness#waitForTaskCompletion()

The following examples show how to use org.apache.flink.streaming.runtime.tasks.StreamTaskTestHarness#waitForTaskCompletion() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: StreamSourceOperatorWatermarksTest.java    From flink with Apache License 2.0 6 votes vote down vote up 
@Test
public void testMaxWatermarkIsForwardedLastForFiniteSource() throws Exception {
	StreamSource<String, ?> sourceOperator = new StreamSource<>(new FiniteSource(true));
	StreamTaskTestHarness<String> testHarness = setupSourceStreamTask(sourceOperator, BasicTypeInfo.STRING_TYPE_INFO);

	testHarness.invoke();
	testHarness.waitForTaskCompletion();

	ConcurrentLinkedQueue<Object> expectedOutput = new ConcurrentLinkedQueue<>();
	expectedOutput.add(new StreamRecord<>("Hello"));
	expectedOutput.add(Watermark.MAX_WATERMARK);

	TestHarnessUtil.assertOutputEquals("Output was not correct.",
		expectedOutput,
		testHarness.getOutput());
}
Example 2
Source File: StreamSourceOperatorWatermarksTest.java    From flink with Apache License 2.0 6 votes vote down vote up 
@Test
public void testNoMaxWatermarkOnImmediateCancel() throws Exception {
	StreamSource<String, ?> sourceOperator = new StreamSource<>(new InfiniteSource<>());
	StreamTaskTestHarness<String> testHarness = setupSourceStreamTask(
		sourceOperator, BasicTypeInfo.STRING_TYPE_INFO, true);

	testHarness.invoke();
	try {
		testHarness.waitForTaskCompletion();
		fail("should throw an exception");
	} catch (Throwable t) {
		if (!ExceptionUtils.findThrowable(t, CancelTaskException.class).isPresent()) {
			throw t;
		}
	}
	assertTrue(testHarness.getOutput().isEmpty());
}
Example 3
Source File: StreamSourceOperatorWatermarksTest.java    From flink with Apache License 2.0 6 votes vote down vote up 
@Test
public void testNoMaxWatermarkOnAsyncCancel() throws Exception {
	StreamSource<String, ?> sourceOperator = new StreamSource<>(new InfiniteSource<>());
	StreamTaskTestHarness<String> testHarness = setupSourceStreamTask(sourceOperator, BasicTypeInfo.STRING_TYPE_INFO);

	testHarness.invoke();
	testHarness.waitForTaskRunning();
	Thread.sleep(200);
	testHarness.getTask().cancel();
	try {
		testHarness.waitForTaskCompletion();
	} catch (Throwable t) {
		if (!ExceptionUtils.findThrowable(t, CancelTaskException.class).isPresent()) {
			throw t;
		}
	}
	assertTrue(testHarness.getOutput().isEmpty());
}
Example 4
Source File: StreamIterationHeadTest.java    From Flink-CEPplus with Apache License 2.0 5 votes vote down vote up 
@Test
public void testIterationHeadWatermarkEmission() throws Exception {
	StreamTaskTestHarness<Integer> harness = new StreamTaskTestHarness<>(
			StreamIterationHead::new,
			BasicTypeInfo.INT_TYPE_INFO);
	harness.setupOutputForSingletonOperatorChain();
	harness.getStreamConfig().setIterationId("1");
	harness.getStreamConfig().setIterationWaitTime(1);

	harness.invoke();
	harness.waitForTaskCompletion();

	assertEquals(1, harness.getOutput().size());
	assertEquals(new Watermark(Long.MAX_VALUE), harness.getOutput().peek());
}
Example 5
Source File: StreamIterationHeadTest.java    From flink with Apache License 2.0 5 votes vote down vote up 
@Test
public void testIterationHeadWatermarkEmission() throws Exception {
	StreamTaskTestHarness<Integer> harness = new StreamTaskTestHarness<>(
			StreamIterationHead::new,
			BasicTypeInfo.INT_TYPE_INFO);
	harness.setupOutputForSingletonOperatorChain();
	harness.getStreamConfig().setIterationId("1");
	harness.getStreamConfig().setIterationWaitTime(1);

	harness.invoke();
	harness.waitForTaskCompletion();

	assertEquals(1, harness.getOutput().size());
	assertEquals(new Watermark(Long.MAX_VALUE), harness.getOutput().peek());
}
Example 6
Source File: StreamIterationHeadTest.java    From flink with Apache License 2.0 5 votes vote down vote up 
@Test
public void testIterationHeadWatermarkEmission() throws Exception {
	StreamTaskTestHarness<Integer> harness = new StreamTaskTestHarness<>(
			StreamIterationHead::new,
			BasicTypeInfo.INT_TYPE_INFO);
	harness.setupOutputForSingletonOperatorChain();
	harness.getStreamConfig().setIterationId("1");
	harness.getStreamConfig().setIterationWaitTime(1);

	harness.invoke();
	harness.waitForTaskCompletion();

	assertEquals(1, harness.getOutput().size());
	assertEquals(new Watermark(Long.MAX_VALUE), harness.getOutput().peek());
}
Example 7
Source File: StreamTaskTimerTest.java    From flink with Apache License 2.0 5 votes vote down vote up 
private void stopTestHarness(StreamTaskTestHarness<?> testHarness, long timeout) throws Exception {
	testHarness.endInput();
	testHarness.waitForTaskCompletion();

	// thread needs to die in time
	long deadline = System.currentTimeMillis() + timeout;
	while (StreamTask.TRIGGER_THREAD_GROUP.activeCount() > 0 && System.currentTimeMillis() < deadline) {
		Thread.sleep(10);
	}

	assertEquals("Trigger timer thread did not properly shut down",
			0, StreamTask.TRIGGER_THREAD_GROUP.activeCount());
}
Example 8
Source File: StreamSourceOperatorWatermarksTest.java    From flink with Apache License 2.0 5 votes vote down vote up 
@Test
public void testEmitMaxWatermarkForFiniteSource() throws Exception {
	StreamSource<String, ?> sourceOperator = new StreamSource<>(new FiniteSource());
	StreamTaskTestHarness<String> testHarness = setupSourceStreamTask(sourceOperator, BasicTypeInfo.STRING_TYPE_INFO);

	testHarness.invoke();
	testHarness.waitForTaskCompletion();

	assertEquals(1, testHarness.getOutput().size());
	assertEquals(Watermark.MAX_WATERMARK, testHarness.getOutput().peek());
}