spark-instrumented-optimizer/R/pkg/tests/fulltests/test_mllib_fpm.R
Felix Cheung dc4c351837 [SPARK-20877][SPARKR] refactor tests to basic tests only for CRAN
## What changes were proposed in this pull request?

Move all existing tests to non-installed directory so that it will never run by installing SparkR package

For a follow-up PR:
- remove all skip_on_cran() calls in tests
- clean up test timer
- improve or change basic tests that do run on CRAN (if anyone has suggestion)

It looks like `R CMD build pkg` will still put pkg\tests (ie. the full tests) into the source package but `R CMD INSTALL` on such source package does not install these tests (and so `R CMD check` does not run them)

## How was this patch tested?

- [x] unit tests, Jenkins
- [x] AppVeyor
- [x] make a source package, install it, `R CMD check` it - verify the full tests are not installed or run

Author: Felix Cheung <felixcheung_m@hotmail.com>

Closes #18264 from felixcheung/rtestset.
2017-06-11 00:00:33 -07:00

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2.6 KiB
R

#
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library(testthat)
context("MLlib frequent pattern mining")
# Tests for MLlib frequent pattern mining algorithms in SparkR
sparkSession <- sparkR.session(master = sparkRTestMaster, enableHiveSupport = FALSE)
test_that("spark.fpGrowth", {
data <- selectExpr(createDataFrame(data.frame(items = c(
"1,2",
"1,2",
"1,2,3",
"1,3"
))), "split(items, ',') as items")
model <- spark.fpGrowth(data, minSupport = 0.3, minConfidence = 0.8, numPartitions = 1)
itemsets <- collect(spark.freqItemsets(model))
expected_itemsets <- data.frame(
items = I(list(list("3"), list("3", "1"), list("2"), list("2", "1"), list("1"))),
freq = c(2, 2, 3, 3, 4)
)
expect_equivalent(expected_itemsets, itemsets)
expected_association_rules <- data.frame(
antecedent = I(list(list("2"), list("3"))),
consequent = I(list(list("1"), list("1"))),
confidence = c(1, 1)
)
expect_equivalent(expected_association_rules, collect(spark.associationRules(model)))
new_data <- selectExpr(createDataFrame(data.frame(items = c(
"1,2",
"1,3",
"2,3"
))), "split(items, ',') as items")
expected_predictions <- data.frame(
items = I(list(list("1", "2"), list("1", "3"), list("2", "3"))),
prediction = I(list(list(), list(), list("1")))
)
expect_equivalent(expected_predictions, collect(predict(model, new_data)))
if (not_cran_or_windows_with_hadoop()) {
modelPath <- tempfile(pattern = "spark-fpm", fileext = ".tmp")
write.ml(model, modelPath, overwrite = TRUE)
loaded_model <- read.ml(modelPath)
expect_equivalent(
itemsets,
collect(spark.freqItemsets(loaded_model)))
unlink(modelPath)
}
model_without_numpartitions <- spark.fpGrowth(data, minSupport = 0.3, minConfidence = 0.8)
expect_equal(
count(spark.freqItemsets(model_without_numpartitions)),
count(spark.freqItemsets(model))
)
})
sparkR.session.stop()