Nothing
context("streamable_table")
test_stream <- function(stream) {
filename <- tempfile(fileext = ".txt")
con <- generic_connection(filename, "wb")
on.exit(close(con))
data <- datasets::iris
data$Species <- as.character(data$Species)
stream$write(data, con, omit_header = FALSE)
stream$write(data, con, omit_header = TRUE)
close(con)
con <- generic_connection(filename, "rb")
on.exit(close(con))
## unark works via readLines. This is necessary for
## readr methods which cannot read non-binary connection
## but not necessary for base methods.
chunk <- paste0(readLines(con), "\n", collapse = "")
df <- stream$read(chunk)
testthat::expect_equivalent(df, rbind(data, data))
}
testthat::test_that("streamable_base_csv", {
test_stream(streamable_base_csv())
})
testthat::test_that("streamable_base_tsv", {
test_stream(streamable_base_tsv())
})
testthat::test_that("streamable_readr_csv", {
test_stream(streamable_readr_csv())
})
testthat::test_that("streamable_readr_tsv", {
test_stream(streamable_readr_tsv())
})
testthat::test_that("streamable_vroom", {
test_stream(streamable_vroom())
})
testthat::test_that("internal closure constructor", {
window <- windowing(FALSE)
testthat::expect_is(window, "function")
})
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