spark-instrumented-optimizer/R/pkg/inst/tests/test_take.R
Sun Rui 69c5dee2f0 [SPARK-7714] [SPARKR] SparkR tests should use more specific expectations than expect_true
1. Update the pattern 'expect_true(a == b)' to 'expect_equal(a, b)'.
2. Update the pattern 'expect_true(inherits(a, b))' to 'expect_is(a, b)'.
3. Update the pattern 'expect_true(identical(a, b))' to 'expect_identical(a, b)'.

Author: Sun Rui <rui.sun@intel.com>

Closes #7152 from sun-rui/SPARK-7714 and squashes the following commits:

8ad2440 [Sun Rui] Fix test case errors.
8fe9f0c [Sun Rui] Update the pattern 'expect_true(identical(a, b))' to 'expect_identical(a, b)'.
f1b8005 [Sun Rui] Update the pattern 'expect_true(inherits(a, b))' to 'expect_is(a, b)'.
f631e94 [Sun Rui] Update the pattern 'expect_true(a == b)' to 'expect_equal(a, b)'.
2015-07-01 09:50:12 -07:00

67 lines
3.1 KiB
R

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context("tests RDD function take()")
# Mock data
numVector <- c(-10:97)
numList <- list(sqrt(1), sqrt(2), sqrt(3), 4 ** 10)
strVector <- c("Dexter Morgan: I suppose I should be upset, even feel",
"violated, but I'm not. No, in fact, I think this is a friendly",
"message, like \"Hey, wanna play?\" and yes, I want to play. ",
"I really, really do.")
strList <- list("Dexter Morgan: Blood. Sometimes it sets my teeth on edge, ",
"other times it helps me control the chaos.",
"Dexter Morgan: Harry and Dorris Morgan did a wonderful job ",
"raising me. But they're both dead now. I didn't kill them. Honest.")
# JavaSparkContext handle
jsc <- sparkR.init()
test_that("take() gives back the original elements in correct count and order", {
numVectorRDD <- parallelize(jsc, numVector, 10)
# case: number of elements to take is less than the size of the first partition
expect_equal(take(numVectorRDD, 1), as.list(head(numVector, n = 1)))
# case: number of elements to take is the same as the size of the first partition
expect_equal(take(numVectorRDD, 11), as.list(head(numVector, n = 11)))
# case: number of elements to take is greater than all elements
expect_equal(take(numVectorRDD, length(numVector)), as.list(numVector))
expect_equal(take(numVectorRDD, length(numVector) + 1), as.list(numVector))
numListRDD <- parallelize(jsc, numList, 1)
numListRDD2 <- parallelize(jsc, numList, 4)
expect_equal(take(numListRDD, 3), take(numListRDD2, 3))
expect_equal(take(numListRDD, 5), take(numListRDD2, 5))
expect_equal(take(numListRDD, 1), as.list(head(numList, n = 1)))
expect_equal(take(numListRDD2, 999), numList)
strVectorRDD <- parallelize(jsc, strVector, 2)
strVectorRDD2 <- parallelize(jsc, strVector, 3)
expect_equal(take(strVectorRDD, 4), as.list(strVector))
expect_equal(take(strVectorRDD2, 2), as.list(head(strVector, n = 2)))
strListRDD <- parallelize(jsc, strList, 4)
strListRDD2 <- parallelize(jsc, strList, 1)
expect_equal(take(strListRDD, 3), as.list(head(strList, n = 3)))
expect_equal(take(strListRDD2, 1), as.list(head(strList, n = 1)))
expect_equal(length(take(strListRDD, 0)), 0)
expect_equal(length(take(strVectorRDD, 0)), 0)
expect_equal(length(take(numListRDD, 0)), 0)
expect_equal(length(take(numVectorRDD, 0)), 0)
})