tests/fulltests/test_Serde.R

In vkapartzianis/SparkR: R Frontend for Apache Spark

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# this work for additional information regarding copyright ownership.
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#    http://www.apache.org/licenses/LICENSE-2.0
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context("SerDe functionality")

sparkSession <- sparkR.session(master = sparkRTestMaster, enableHiveSupport = FALSE)

test_that("SerDe of primitive types", {
  x <- callJStatic("SparkRHandler", "echo", 1L)
  expect_equal(x, 1L)
  expect_equal(class(x), "integer")

  x <- callJStatic("SparkRHandler", "echo", 1)
  expect_equal(x, 1)
  expect_equal(class(x), "numeric")

  x <- callJStatic("SparkRHandler", "echo", TRUE)
  expect_true(x)
  expect_equal(class(x), "logical")

  x <- callJStatic("SparkRHandler", "echo", "abc")
  expect_equal(x, "abc")
  expect_equal(class(x), "character")
})

test_that("SerDe of list of primitive types", {
  x <- list(1L, 2L, 3L)
  y <- callJStatic("SparkRHandler", "echo", x)
  expect_equal(x, y)
  expect_equal(class(y[[1]]), "integer")

  x <- list(1, 2, 3)
  y <- callJStatic("SparkRHandler", "echo", x)
  expect_equal(x, y)
  expect_equal(class(y[[1]]), "numeric")

  x <- list(TRUE, FALSE)
  y <- callJStatic("SparkRHandler", "echo", x)
  expect_equal(x, y)
  expect_equal(class(y[[1]]), "logical")

  x <- list("a", "b", "c")
  y <- callJStatic("SparkRHandler", "echo", x)
  expect_equal(x, y)
  expect_equal(class(y[[1]]), "character")

  # Empty list
  x <- list()
  y <- callJStatic("SparkRHandler", "echo", x)
  expect_equal(x, y)
})

test_that("SerDe of list of lists", {
  x <- list(list(1L, 2L, 3L), list(1, 2, 3),
            list(TRUE, FALSE), list("a", "b", "c"))
  y <- callJStatic("SparkRHandler", "echo", x)
  expect_equal(x, y)

  # List of empty lists
  x <- list(list(), list())
  y <- callJStatic("SparkRHandler", "echo", x)
  expect_equal(x, y)
})

sparkR.session.stop()