[GitHub] GJL commented on a change in pull request #7697: [FLINK-11578][tests] Port BackPressureStatsTrackerImplITCase to new code base

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GJL commented on a change in pull request #7697: [FLINK-11578][tests] Port BackPressureStatsTrackerImplITCase to new code base
URL: https://github.com/apache/flink/pull/7697#discussion_r257008935
 
 

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 File path: flink-runtime/src/test/java/org/apache/flink/runtime/rest/handler/legacy/backpressure/BackPressureStatsTrackerImplITCase.java
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 @@ -39,277 +32,200 @@
 import org.apache.flink.runtime.jobgraph.JobGraph;
 import org.apache.flink.runtime.jobgraph.JobVertex;
 import org.apache.flink.runtime.jobgraph.tasks.AbstractInvokable;
-import org.apache.flink.runtime.messages.JobManagerMessages;
-import org.apache.flink.runtime.testingUtils.TestingJobManagerMessages;
-import org.apache.flink.runtime.testingUtils.TestingUtils;
+import org.apache.flink.runtime.minicluster.TestingMiniCluster;
+import org.apache.flink.runtime.minicluster.TestingMiniClusterConfiguration;
+import org.apache.flink.runtime.testtasks.BlockingNoOpInvokable;
+import org.apache.flink.runtime.testutils.CommonTestUtils;
 import org.apache.flink.util.TestLogger;
 
-import akka.actor.ActorSystem;
-import akka.testkit.JavaTestKit;
-import org.junit.AfterClass;
-import org.junit.Assert;
-import org.junit.BeforeClass;
+import org.hamcrest.Description;
+import org.hamcrest.Matcher;
+import org.hamcrest.TypeSafeDiagnosingMatcher;
+import org.junit.After;
+import org.junit.Before;
 import org.junit.Test;
 
+import java.io.IOException;
+import java.time.Duration;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Optional;
-import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.ExecutionException;
 import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+import java.util.stream.Collectors;
+import java.util.stream.IntStream;
 
-import scala.concurrent.duration.FiniteDuration;
-
-import static org.apache.flink.runtime.testingUtils.TestingJobManagerMessages.AllVerticesRunning;
-import static org.apache.flink.runtime.testingUtils.TestingJobManagerMessages.ExecutionGraphFound;
-import static org.apache.flink.runtime.testingUtils.TestingJobManagerMessages.RequestExecutionGraph;
-import static org.apache.flink.runtime.testingUtils.TestingJobManagerMessages.WaitForAllVerticesToBeRunning;
+import static org.apache.flink.util.Preconditions.checkState;
+import static org.hamcrest.Matchers.equalTo;
+import static org.hamcrest.Matchers.is;
+import static org.junit.Assert.assertThat;
+import static org.junit.Assert.assertTrue;
 
 /**
  * Simple back pressured task test.
+ *
+ * @see BackPressureStatsTrackerImpl
  */
 public class BackPressureStatsTrackerImplITCase extends TestLogger {
 
-	private static NetworkBufferPool networkBufferPool;
-	private static ActorSystem testActorSystem;
+	private static final int TIMEOUT_SECONDS = 10;
 
 Review comment:
   Will change to long.

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