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context("download")
# Download from a url, and return the contents of the file as a string
download_result <- function(url) {
tfile <- tempfile()
download(url, tfile, mode = "wb")
# Read the file
tfile_fd <- file(tfile, "r")
dl_text <- readLines(tfile_fd, warn = FALSE)
dl_text <- paste(dl_text, collapse = "\n")
close(tfile_fd)
unlink(tfile)
dl_text
}
# CRAN has intermittent problems with these tests, since they rely on a
# particular website being accessible. This makes it run with devtools::test()
# but not on CRAN
if (Sys.getenv('NOT_CRAN') == "true") {
test_that("downloading http and https works properly", {
# Download http from httpbin.org
result <- download_result("http://httpbin.org/ip")
# Check that it has the string "origin" in the text
expect_true(grepl("origin", result))
# Download https from httpbin.org
result <- download_result("https://httpbin.org/ip")
# Check that it has the string "origin" in the text
expect_true(grepl("origin", result))
})
test_that("follows redirects", {
# Download http redirect from httpbin.org
result <- download_result("http://httpbin.org/redirect/3")
# Check that it has the string "origin" in the text
expect_true(grepl("origin", result))
# Download https redirect from httpbin.org
result <- download_result("https://httpbin.org/redirect/3")
# Check that it has the string "origin" in the text
expect_true(grepl("origin", result))
})
}
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