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+/*
+ * 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.scalatest.FunSuite
+
+class BroadcastSuite extends FunSuite with LocalSparkContext {
+
+ test("basic broadcast") {
+ sc = new SparkContext("local", "test")
+ val list = List(1, 2, 3, 4)
+ val listBroadcast = sc.broadcast(list)
+ val results = sc.parallelize(1 to 2).map(x => (x, listBroadcast.value.sum))
+ assert(results.collect.toSet === Set((1, 10), (2, 10)))
+ }
+
+ test("broadcast variables accessed in multiple threads") {
+ sc = new SparkContext("local[10]", "test")
+ val list = List(1, 2, 3, 4)
+ val listBroadcast = sc.broadcast(list)
+ val results = sc.parallelize(1 to 10).map(x => (x, listBroadcast.value.sum))
+ assert(results.collect.toSet === (1 to 10).map(x => (x, 10)).toSet)
+ }
+}