spark-instrumented-optimizer/R/pkg/inst/tests/test_broadcast.R
Shivaram Venkataraman c688e3c5e4 [SPARK-7230] [SPARKR] Make RDD private in SparkR.
This change makes the RDD API private in SparkR and all internal uses of the SparkR API use SparkR::: to access private functions.

Author: Shivaram Venkataraman <shivaram@cs.berkeley.edu>

Closes #5895 from shivaram/rrdd-private and squashes the following commits:

bdb2f07 [Shivaram Venkataraman] Make RDD private in SparkR. This change also makes all internal uses of the SparkR API use SparkR::: to access private functions
2015-05-05 14:40:33 -07:00

49 lines
1.6 KiB
R

#
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context("broadcast variables")
# JavaSparkContext handle
sc <- sparkR.init()
# 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 <- broadcast(sc, randomMat)
useBroadcast <- function(x) {
sum(SparkR:::value(randomMatBr) * x)
}
actual <- collect(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 <- collect(lapply(rrdd, useBroadcast))
expected <- list(sum(randomMat) * 1, sum(randomMat) * 2)
expect_equal(actual, expected)
})