Github user GJL commented on a diff in the pull request:
https://github.com/apache/flink/pull/5091#discussion_r155502971
--- Diff:
flink-runtime/src/test/java/org/apache/flink/runtime/jobmaster/slotpool/TestingAllocatedSlotActions.java
---
@@ -0,0 +1,53 @@
+/*
+ * 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.runtime.jobmaster.slotpool;
+
+import org.apache.flink.api.java.tuple.Tuple3;
+import org.apache.flink.runtime.instance.SlotSharingGroupId;
+import org.apache.flink.runtime.jobmaster.SlotRequestId;
+import org.apache.flink.runtime.messages.Acknowledge;
+import org.apache.flink.util.Preconditions;
+
+import javax.annotation.Nullable;
+
+import java.util.concurrent.CompletableFuture;
+import java.util.function.Consumer;
+
+/**
+ * Simple {@link AllocatedSlotActions} implementations for testing
purposes.
+ */
+public class TestingAllocatedSlotActions implements AllocatedSlotActions {
+
+ private volatile Consumer<Tuple3<SlotRequestId, SlotSharingGroupId,
Throwable>> releaseSlotConsumer;
+
+ public void setReleaseSlotConsumer(Consumer<Tuple3<SlotRequestId,
SlotSharingGroupId, Throwable>> releaseSlotConsumer) {
+ this.releaseSlotConsumer =
Preconditions.checkNotNull(releaseSlotConsumer);
+ }
+
+ @Override
+ public CompletableFuture<Acknowledge> releaseSlot(SlotRequestId
slotRequestId, @Nullable SlotSharingGroupId slotSharingGroupId, @Nullable
Throwable cause) {
+ Consumer<Tuple3<SlotRequestId, SlotSharingGroupId, Throwable>>
currentReleaseSlotConsumer = this.releaseSlotConsumer;
+
+ if (currentReleaseSlotConsumer != null) {
+
currentReleaseSlotConsumer.accept(Tuple3.of(slotRequestId, slotSharingGroupId,
cause ));
--- End diff --
nit: whitespace after `cause`
```
... cause ));
```
---
