Github user steveloughran commented on a diff in the pull request:
https://github.com/apache/spark/pull/9182#discussion_r43281918
--- Diff:
yarn/src/test/scala/org/apache/spark/scheduler/cluster/ExtensionServiceIntegrationSuite.scala
---
@@ -0,0 +1,88 @@
+/*
+ * 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.spark.scheduler.cluster
+
+import org.scalatest.BeforeAndAfter
+
+import org.apache.spark.{Logging, SparkConf, SparkContext, SparkFunSuite}
+
+/**
+ * Test the integration with [[SchedulerExtensionServices]]
+ */
+class ExtensionServiceIntegrationSuite extends SparkFunSuite
+ with BeforeAndAfter
+ with Logging {
+
+ val applicationId = new StubApplicationId(0, 1111L)
+ val attemptId = new StubApplicationAttemptId(applicationId, 1)
+ var sparkCtx: SparkContext = _
+
+ /*
+ * Setup phase creates the spark context
+ */
+ before {
+ val sparkConf = new SparkConf()
+ sparkConf.set(SchedulerExtensionServices.SPARK_YARN_SERVICES,
+ "org.apache.spark.scheduler.cluster.SimpleExtensionService")
+
sparkConf.setMaster("local").setAppName("ExtensionServiceIntegrationSuite")
+ sparkCtx = new SparkContext(sparkConf)
+ }
+
+ /*
+ * Teardown stops all services and the VM-wide spark context
+ */
+ after {
+ stopSparkContext()
+ }
+
+ protected def stopSparkContext(): Unit = {
+ if (sparkCtx != null) {
+ logDebug("Stopping spark context")
+ sparkCtx.stop()
+ sparkCtx = null
+ }
+ }
+
+
--- End diff --
whitespace line; will fix
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