Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/22192#discussion_r216106676
--- Diff: core/src/test/java/org/apache/spark/ExecutorPluginSuite.java ---
@@ -0,0 +1,122 @@
+/*
+ * 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;
+
+import org.apache.spark.api.java.JavaSparkContext;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+public class ExecutorPluginSuite {
+ private static final String EXECUTOR_PLUGIN_CONF_NAME =
"spark.executor.plugins";
+ private static final String testBadPluginName =
TestBadShutdownPlugin.class.getName();
+ private static final String testPluginName =
TestExecutorPlugin.class.getName();
+
+ // Static value modified by testing plugin to ensure plugin loaded
correctly.
+ public static int numSuccessfulPlugins = 0;
+
+ // Static value modified by testing plugin to verify plugins shut down
properly.
+ public static int numSuccessfulTerminations = 0;
+
+ private JavaSparkContext sc;
+
+ @Before
+ public void setUp() {
+ sc = null;
+ numSuccessfulPlugins = 0;
+ numSuccessfulTerminations = 0;
+ }
+
+ @After
+ public void tearDown() {
+ if (sc != null) {
+ sc.stop();
+ sc = null;
+ }
+ }
+
+ private SparkConf initializeSparkConf(String pluginNames) {
+ return new SparkConf()
+ .setMaster("local")
+ .setAppName("test")
+ .set(EXECUTOR_PLUGIN_CONF_NAME, pluginNames);
+ }
+
+ @Test
+ public void testPluginClassDoesNotExist() {
+ SparkConf conf = initializeSparkConf("nonexistant.plugin");
+ try {
+ sc = new JavaSparkContext(conf);
--- End diff --
You should fail the test if an exception is not thrown here.
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