AzureStor/tests/testthat/test02c_blobappend.R

68 строки
2.4 KiB
R

context("Append blobs")
tenant <- Sys.getenv("AZ_TEST_TENANT_ID")
app <- Sys.getenv("AZ_TEST_APP_ID")
password <- Sys.getenv("AZ_TEST_PASSWORD")
subscription <- Sys.getenv("AZ_TEST_SUBSCRIPTION")
if(tenant == "" || app == "" || password == "" || subscription == "")
skip("Authentication tests skipped: ARM credentials not set")
rgname <- Sys.getenv("AZ_TEST_STORAGE_RG")
storname <- Sys.getenv("AZ_TEST_STORAGE_NOHNS")
if(rgname == "" || storname == "")
skip("Append blob tests skipped: resource names not set")
sub <- AzureRMR::az_rm$new(tenant=tenant, app=app, password=password)$get_subscription(subscription)
stor <- sub$get_resource_group(rgname)$get_storage_account(storname)
bl <- stor$get_blob_endpoint()
opts <- options(azure_storage_progress_bar=FALSE)
test_that("Append blob works",
{
cont_name <- paste0(sample(letters, 10, TRUE), collapse="")
cont <- create_blob_container(bl, cont_name)
expect_silent(upload_blob(cont, "../resources/iris.csv", "iris.csv", type="AppendBlob", append=FALSE))
expect_true(blob_exists(cont, "iris.csv"))
expect_silent(upload_blob(cont, "../resources/iris.csv", "iris.csv", type="AppendBlob", append=TRUE))
# check that mixed blob types don't break things
expect_silent(upload_blob(cont, "../resources/iris.csv", "iris0.csv"))
expect_is(blobs <- list_blobs(cont, info="all"), "data.frame")
expect_identical(nrow(blobs), 2L)
appblob <- blobs[which(blobs$blobtype == "AppendBlob"), ]
blkblob <- blobs[which(blobs$blobtype == "BlockBlob"), ]
fsize <- file.size("../resources/iris.csv")
expect_true(nrow(appblob) == 1 && appblob$name == "iris.csv" && appblob$size == 2*fsize)
expect_true(nrow(blkblob) == 1 && blkblob$name == "iris0.csv")
# cannot append to non-append blob
expect_error(upload_blob(cont, "../resources/iris.csv", "iris0.csv", type="AppendBlob", append=TRUE))
expect_error(upload_blob(cont, "../resources/iris.csv", "iris0.csv", type="AppendBlob", append=FALSE))
dlfile <- tempfile()
download_blob(cont, "iris.csv", dlfile)
expect_true(file.size(dlfile) == 2*fsize)
dl <- readLines(dlfile)
src <- readLines("../resources/iris.csv")
n <- length(src)
expect_true(length(dl) == 2*n && identical(src, dl[1:n]) && identical(src, dl[(n+1):(2*n)]))
})
teardown(
{
options(opts)
conts <- list_blob_containers(bl)
lapply(conts, delete_blob_container, confirm=FALSE)
})