tillrohrmann commented on a change in pull request #11473: [FLINK-16705] Ensure MiniCluster shutdown does not interfere with JobResult retrieval URL: https://github.com/apache/flink/pull/11473#discussion_r400229264
########## File path: flink-clients/src/test/java/org/apache/flink/client/program/PerJobMiniClusterTest.java ########## @@ -0,0 +1,234 @@ +/* + * 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.client.program; + +import org.apache.flink.api.common.JobExecutionResult; +import org.apache.flink.api.common.JobStatus; +import org.apache.flink.api.common.JobSubmissionResult; +import org.apache.flink.configuration.Configuration; +import org.apache.flink.core.execution.JobClient; +import org.apache.flink.runtime.execution.Environment; +import org.apache.flink.runtime.jobgraph.JobGraph; +import org.apache.flink.runtime.jobgraph.JobVertex; +import org.apache.flink.runtime.jobmaster.JobResult; +import org.apache.flink.runtime.minicluster.MiniCluster; +import org.apache.flink.runtime.testtasks.NoOpInvokable; +import org.apache.flink.runtime.testutils.CancelableInvokable; + +import org.junit.BeforeClass; +import org.junit.ClassRule; +import org.junit.Test; +import org.junit.rules.TemporaryFolder; +import org.mockito.Mockito; + +import java.util.Map; +import java.util.concurrent.CompletableFuture; +import java.util.concurrent.ExecutionException; + +import static org.hamcrest.CoreMatchers.containsString; +import static org.hamcrest.CoreMatchers.is; +import static org.hamcrest.CoreMatchers.notNullValue; +import static org.hamcrest.MatcherAssert.assertThat; + +/** + * Tests for {@link PerJobMiniCluster}. + */ +public class PerJobMiniClusterTest { + + @ClassRule + public static TemporaryFolder temporaryFolder = new TemporaryFolder(); + + private MiniCluster miniCluster; + + @BeforeClass + public static void beforeClass() throws Exception { + temporaryFolder.create(); + } + + @Test + public void testJobExecution() throws Exception { + PerJobMiniCluster perJobMiniCluster = initializeMiniCluster(); + + JobClient jobClient = perJobMiniCluster.submitJob(getNoopJobGraph()).get(); + + JobExecutionResult jobExecutionResult = jobClient.getJobExecutionResult(getClass().getClassLoader()).get(); + assertThat(jobExecutionResult, is(notNullValue())); + + Map<String, Object> actual = jobClient.getAccumulators(getClass().getClassLoader()).get(); + assertThat(actual, is(notNullValue())); + + assertThatMiniClusterIsShutdown(); + } + + @Test + public void testJobClient() throws Exception { + PerJobMiniCluster perJobMiniCluster = initializeMiniCluster(); + + JobGraph cancellableJobGraph = getCancellableJobGraph(); + JobClient jobClient = perJobMiniCluster + .submitJob(cancellableJobGraph) + .get(); + + assertThat(jobClient.getJobID(), is(cancellableJobGraph.getJobID())); + assertThat(jobClient.getJobStatus().get(), is(JobStatus.RUNNING)); + + jobClient.cancel().get(); + + try { + jobClient.getJobExecutionResult(getClass().getClassLoader()).get(); + } catch (ExecutionException e) { + assertThat(e.getMessage(), containsString("Failed to convert JobResult to JobExecutionResult.")); + } + + assertThatMiniClusterIsShutdown(); + } + + @Test + public void testJobClientSavepoint() throws Exception { + JobGraph jobGraph = new JobGraph(); + String savepointPath = temporaryFolder.getRoot().getAbsolutePath(); + + PerJobMiniCluster perJobMiniCluster = new PerJobMiniCluster(new Configuration(), config -> { + // Use a mock in this test case to test calling of the savepoint methods + miniCluster = Mockito.mock(MiniCluster.class); + + CompletableFuture<JobSubmissionResult> jobSubmissionFuture = new CompletableFuture<>(); + jobSubmissionFuture.complete(new JobSubmissionResult(jobGraph.getJobID())); + Mockito.when(miniCluster.submitJob(Mockito.any())).thenReturn(jobSubmissionFuture); + + CompletableFuture<JobResult> jobResultFuture = new CompletableFuture<>(); + jobResultFuture.complete( + new JobResult.Builder() + .jobId(jobGraph.getJobID()) + .netRuntime(42L) + .build()); + Mockito.when(miniCluster.requestJobResult(Mockito.any())).thenReturn(jobResultFuture); + + return miniCluster; + }); + + JobClient jobClient = perJobMiniCluster.submitJob(jobGraph).get(); + + jobClient.triggerSavepoint(savepointPath); + Mockito.verify(miniCluster).triggerSavepoint(jobGraph.getJobID(), savepointPath, false); + + jobClient.stopWithSavepoint(true, savepointPath); + Mockito.verify(miniCluster).stopWithSavepoint(jobGraph.getJobID(), savepointPath, true); + } + + @Test + public void testSubmissionError() throws Exception { + PerJobMiniCluster perJobMiniCluster = initializeMiniCluster(); + + // JobGraph is not a valid job + JobGraph jobGraph = new JobGraph(); + + try { + perJobMiniCluster.submitJob(jobGraph).get(); + } catch (ExecutionException e) { + // That's what we want + assertThat(e.getMessage(), containsString("Error submitting job to MiniCluster")); + } + + assertThatMiniClusterIsShutdown(); + } + + @Test + public void testMultipleExecutions() throws Exception { + PerJobMiniCluster perJobMiniCluster = initializeMiniCluster(); + { + JobClient jobClient = perJobMiniCluster.submitJob(getNoopJobGraph()).get(); + jobClient.getJobExecutionResult(getClass().getClassLoader()).get(); + assertThatMiniClusterIsShutdown(); + } + { + JobClient jobClient = perJobMiniCluster.submitJob(getNoopJobGraph()).get(); + jobClient.getJobExecutionResult(getClass().getClassLoader()).get(); + assertThatMiniClusterIsShutdown(); + } + } + + @Test + public void testJobClientInteractionAfterShutdown() throws Exception { + PerJobMiniCluster perJobMiniCluster = initializeMiniCluster(); + JobClient jobClient = perJobMiniCluster.submitJob(getNoopJobGraph()).get(); + jobClient.getJobExecutionResult(getClass().getClassLoader()).get(); + assertThatMiniClusterIsShutdown(); + + try { + jobClient.cancel(); Review comment: `fail` is missing. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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