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Posted to issues@flink.apache.org by GitBox <gi...@apache.org> on 2018/08/17 07:33:05 UTC

[GitHub] pnowojski closed pull request #6570: [FLINK-10159][tests] Fail TestHarness.initializeState if harness has already been initialized

pnowojski closed pull request #6570: [FLINK-10159][tests] Fail TestHarness.initializeState if harness has already been initialized
URL: https://github.com/apache/flink/pull/6570
 
 
   

This is a PR merged from a forked repository.
As GitHub hides the original diff on merge, it is displayed below for
the sake of provenance:

As this is a foreign pull request (from a fork), the diff is supplied
below (as it won't show otherwise due to GitHub magic):

diff --git a/flink-connectors/flink-connector-kafka-0.11/src/test/java/org/apache/flink/streaming/connectors/kafka/FlinkKafkaProducer011ITCase.java b/flink-connectors/flink-connector-kafka-0.11/src/test/java/org/apache/flink/streaming/connectors/kafka/FlinkKafkaProducer011ITCase.java
index 74c58ad2891..57b7e77dc7f 100644
--- a/flink-connectors/flink-connector-kafka-0.11/src/test/java/org/apache/flink/streaming/connectors/kafka/FlinkKafkaProducer011ITCase.java
+++ b/flink-connectors/flink-connector-kafka-0.11/src/test/java/org/apache/flink/streaming/connectors/kafka/FlinkKafkaProducer011ITCase.java
@@ -172,7 +172,6 @@ public void testFlinkKafkaProducer011FailBeforeNotify() throws Exception {
 
 		testHarness.setup();
 		testHarness.open();
-		testHarness.initializeState(null);
 		testHarness.processElement(42, 0);
 		testHarness.snapshot(0, 1);
 		testHarness.processElement(43, 2);
@@ -225,7 +224,6 @@ public void testFlinkKafkaProducer011FailTransactionCoordinatorBeforeNotify() th
 
 		testHarness1.setup();
 		testHarness1.open();
-		testHarness1.initializeState(null);
 		testHarness1.processElement(42, 0);
 		testHarness1.snapshot(0, 1);
 		testHarness1.processElement(43, 2);
diff --git a/flink-streaming-java/src/test/java/org/apache/flink/streaming/api/checkpoint/ListCheckpointedTest.java b/flink-streaming-java/src/test/java/org/apache/flink/streaming/api/checkpoint/ListCheckpointedTest.java
index ff0b0fcb172..644ab04fb70 100644
--- a/flink-streaming-java/src/test/java/org/apache/flink/streaming/api/checkpoint/ListCheckpointedTest.java
+++ b/flink-streaming-java/src/test/java/org/apache/flink/streaming/api/checkpoint/ListCheckpointedTest.java
@@ -30,6 +30,9 @@
 import java.util.Collections;
 import java.util.List;
 
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
 /**
  * Tests for {@link ListCheckpointed}.
  */
@@ -37,35 +40,39 @@
 
 	@Test
 	public void testUDFReturningNull() throws Exception {
-		TestUserFunction userFunction = new TestUserFunction(null);
-		AbstractStreamOperatorTestHarness<Integer> testHarness =
-				new AbstractStreamOperatorTestHarness<>(new StreamMap<>(userFunction), 1, 1, 0);
-		testHarness.open();
-		OperatorSubtaskState snapshot = testHarness.snapshot(0L, 0L);
-		testHarness.initializeState(snapshot);
-		Assert.assertTrue(userFunction.isRestored());
+		testUDF(new TestUserFunction(null));
 	}
 
 	@Test
 	public void testUDFReturningEmpty() throws Exception {
-		TestUserFunction userFunction = new TestUserFunction(Collections.<Integer>emptyList());
-		AbstractStreamOperatorTestHarness<Integer> testHarness =
-				new AbstractStreamOperatorTestHarness<>(new StreamMap<>(userFunction), 1, 1, 0);
-		testHarness.open();
-		OperatorSubtaskState snapshot = testHarness.snapshot(0L, 0L);
-		testHarness.initializeState(snapshot);
-		Assert.assertTrue(userFunction.isRestored());
+		testUDF(new TestUserFunction(Collections.<Integer>emptyList()));
 	}
 
 	@Test
 	public void testUDFReturningData() throws Exception {
-		TestUserFunction userFunction = new TestUserFunction(Arrays.asList(1, 2, 3));
-		AbstractStreamOperatorTestHarness<Integer> testHarness =
-				new AbstractStreamOperatorTestHarness<>(new StreamMap<>(userFunction), 1, 1, 0);
-		testHarness.open();
-		OperatorSubtaskState snapshot = testHarness.snapshot(0L, 0L);
-		testHarness.initializeState(snapshot);
-		Assert.assertTrue(userFunction.isRestored());
+		testUDF(new TestUserFunction(Arrays.asList(1, 2, 3)));
+	}
+
+	private static void testUDF(TestUserFunction userFunction) throws Exception {
+		OperatorSubtaskState snapshot;
+		try (AbstractStreamOperatorTestHarness<Integer> testHarness = createTestHarness(userFunction)) {
+			testHarness.open();
+			snapshot = testHarness.snapshot(0L, 0L);
+			assertFalse(userFunction.isRestored());
+		}
+		try (AbstractStreamOperatorTestHarness<Integer> testHarness = createTestHarness(userFunction)) {
+			testHarness.initializeState(snapshot);
+			testHarness.open();
+			assertTrue(userFunction.isRestored());
+		}
+	}
+
+	private static AbstractStreamOperatorTestHarness<Integer> createTestHarness(TestUserFunction userFunction) throws Exception {
+		return new AbstractStreamOperatorTestHarness<>(
+			new StreamMap<>(userFunction),
+			1,
+			1,
+			0);
 	}
 
 	private static class TestUserFunction extends RichMapFunction<Integer, Integer> implements ListCheckpointed<Integer> {
@@ -95,7 +102,7 @@ public void restoreState(List<Integer> state) throws Exception {
 			if (null != expected) {
 				Assert.assertEquals(expected, state);
 			} else {
-				Assert.assertTrue(state.isEmpty());
+				assertTrue(state.isEmpty());
 			}
 			restored = true;
 		}
diff --git a/flink-streaming-java/src/test/java/org/apache/flink/streaming/api/functions/sink/TwoPhaseCommitSinkFunctionTest.java b/flink-streaming-java/src/test/java/org/apache/flink/streaming/api/functions/sink/TwoPhaseCommitSinkFunctionTest.java
index 166dc5a622a..2970b87789d 100644
--- a/flink-streaming-java/src/test/java/org/apache/flink/streaming/api/functions/sink/TwoPhaseCommitSinkFunctionTest.java
+++ b/flink-streaming-java/src/test/java/org/apache/flink/streaming/api/functions/sink/TwoPhaseCommitSinkFunctionTest.java
@@ -195,10 +195,14 @@ public void testIgnoreCommitExceptionDuringRecovery() throws Exception {
 		final OperatorSubtaskState snapshot = harness.snapshot(0, 1);
 		harness.notifyOfCompletedCheckpoint(1);
 
+		throwException.set(true);
+
+		closeTestHarness();
+		setUpTestHarness();
+
 		final long transactionTimeout = 1000;
 		sinkFunction.setTransactionTimeout(transactionTimeout);
 		sinkFunction.ignoreFailuresAfterTransactionTimeout();
-		throwException.set(true);
 
 		try {
 			harness.initializeState(snapshot);
@@ -251,11 +255,20 @@ public void testLogTimeoutAlmostReachedWarningDuringRecovery() throws Exception
 		final OperatorSubtaskState snapshot = harness.snapshot(0, 1);
 		final long elapsedTime = (long) ((double) transactionTimeout * warningRatio + 2);
 		clock.setEpochMilli(elapsedTime);
+
+		closeTestHarness();
+		setUpTestHarness();
+		sinkFunction.setTransactionTimeout(transactionTimeout);
+		sinkFunction.enableTransactionTimeoutWarnings(warningRatio);
+
 		harness.initializeState(snapshot);
+		harness.open();
 
 		final List<String> logMessages =
 			loggingEvents.stream().map(LoggingEvent::getRenderedMessage).collect(Collectors.toList());
 
+		closeTestHarness();
+
 		assertThat(
 			logMessages,
 			hasItem(containsString("has been open for 502 ms. " +
diff --git a/flink-streaming-java/src/test/java/org/apache/flink/streaming/util/AbstractStreamOperatorTestHarness.java b/flink-streaming-java/src/test/java/org/apache/flink/streaming/util/AbstractStreamOperatorTestHarness.java
index 2f19ce28e48..0e120eb766e 100644
--- a/flink-streaming-java/src/test/java/org/apache/flink/streaming/util/AbstractStreamOperatorTestHarness.java
+++ b/flink-streaming-java/src/test/java/org/apache/flink/streaming/util/AbstractStreamOperatorTestHarness.java
@@ -80,6 +80,7 @@
 import java.util.Optional;
 import java.util.concurrent.ConcurrentLinkedQueue;
 
+import static org.apache.flink.util.Preconditions.checkState;
 import static org.mockito.Matchers.any;
 import static org.mockito.Mockito.doAnswer;
 import static org.mockito.Mockito.mock;
@@ -138,16 +139,9 @@ public AbstractStreamOperatorTestHarness(
 			int subtaskIndex) throws Exception {
 		this(
 			operator,
-			new MockEnvironmentBuilder()
-				.setTaskName("MockTask")
-				.setMemorySize(3 * 1024 * 1024)
-				.setInputSplitProvider(new MockInputSplitProvider())
-				.setBufferSize(1024)
-				.setMaxParallelism(maxParallelism)
-				.setParallelism(parallelism)
-				.setSubtaskIndex(subtaskIndex)
-				.build(),
-			true,
+			maxParallelism,
+			parallelism,
+			subtaskIndex,
 			new OperatorID());
 	}
 
@@ -359,6 +353,8 @@ public void initializeState(
 		OperatorSubtaskState jmOperatorStateHandles,
 		OperatorSubtaskState tmOperatorStateHandles) throws Exception {
 
+		checkState(!initializeCalled, "TestHarness has already been initialized. Have you " +
+			"opened this harness before initializing it?");
 		if (!setupCalled) {
 			setup();
 		}
diff --git a/flink-streaming-java/src/test/java/org/apache/flink/streaming/util/AbstractStreamOperatorTestHarnessTest.java b/flink-streaming-java/src/test/java/org/apache/flink/streaming/util/AbstractStreamOperatorTestHarnessTest.java
new file mode 100644
index 00000000000..65f62a363d0
--- /dev/null
+++ b/flink-streaming-java/src/test/java/org/apache/flink/streaming/util/AbstractStreamOperatorTestHarnessTest.java
@@ -0,0 +1,55 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.flink.streaming.util;
+
+import org.apache.flink.runtime.checkpoint.OperatorSubtaskState;
+import org.apache.flink.streaming.api.operators.AbstractStreamOperator;
+import org.apache.flink.util.TestLogger;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+
+import static org.hamcrest.CoreMatchers.containsString;
+
+/**
+ * Tests for {@link AbstractStreamOperatorTestHarness}.
+ */
+public class AbstractStreamOperatorTestHarnessTest extends TestLogger {
+	@Rule
+	public ExpectedException expectedException = ExpectedException.none();
+
+	@Test
+	public void testInitializeAfterOpenning() throws Throwable {
+		expectedException.expect(IllegalStateException.class);
+		expectedException.expectMessage(containsString("TestHarness has already been initialized."));
+
+		AbstractStreamOperatorTestHarness<Integer> result;
+		result =
+			new AbstractStreamOperatorTestHarness<>(
+				new AbstractStreamOperator<Integer>() {
+				},
+				1,
+				1,
+				0);
+		result.setup();
+		result.open();
+		result.initializeState(new OperatorSubtaskState());
+	}
+}


 

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