1 files changed, 36 insertions, 0 deletions
diff --git a/yarn/src/test/scala/org/apache/spark/launcher/TestClasspathBuilder.scala b/yarn/src/test/scala/org/apache/spark/launcher/TestClasspathBuilder.scala
new file mode 100644
index 0000000000..da9e8e21a2
--- /dev/null
+++ b/yarn/src/test/scala/org/apache/spark/launcher/TestClasspathBuilder.scala
@@ -0,0 +1,36 @@
+/*
+ * 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.launcher
+
+import java.util.{List => JList, Map => JMap}
+
+/**
+ * Exposes AbstractCommandBuilder to the YARN tests, so that they can build classpaths the same
+ * way other cluster managers do.
+ */
+private[spark] class TestClasspathBuilder extends AbstractCommandBuilder {
+
+  childEnv.put(CommandBuilderUtils.ENV_SPARK_HOME, sys.props("spark.test.home"))
+
+  override def buildClassPath(extraCp: String): JList[String] = super.buildClassPath(extraCp)
+
+  /** Not used by the YARN tests. */
+  override def buildCommand(env: JMap[String, String]): JList[String] =
+    throw new UnsupportedOperationException()
+
+}