| # |
| # 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. |
| # |
| |
| context("broadcast variables") |
| |
| # JavaSparkContext handle |
| sparkSession <- sparkR.session(master = sparkRTestMaster, enableHiveSupport = FALSE) |
| sc <- callJStatic("org.apache.spark.sql.api.r.SQLUtils", "getJavaSparkContext", sparkSession) |
| |
| # Partitioned data |
| nums <- 1:2 |
| rrdd <- parallelize(sc, nums, 2L) |
| |
| test_that("using broadcast variable", { |
| randomMat <- matrix(nrow = 10, ncol = 10, data = rnorm(100)) |
| randomMatBr <- broadcastRDD(sc, randomMat) |
| |
| useBroadcast <- function(x) { |
| sum(SparkR:::value(randomMatBr) * x) |
| } |
| actual <- collectRDD(lapply(rrdd, useBroadcast)) |
| expected <- list(sum(randomMat) * 1, sum(randomMat) * 2) |
| expect_equal(actual, expected) |
| }) |
| |
| test_that("without using broadcast variable", { |
| randomMat <- matrix(nrow = 10, ncol = 10, data = rnorm(100)) |
| |
| useBroadcast <- function(x) { |
| sum(randomMat * x) |
| } |
| actual <- collectRDD(lapply(rrdd, useBroadcast)) |
| expected <- list(sum(randomMat) * 1, sum(randomMat) * 2) |
| expect_equal(actual, expected) |
| }) |
| |
| sparkR.session.stop() |