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context("Garbage collection")
gc()
h1 <- new_handle()
test <- function(){
pool <- new_pool()
h2 <- new_handle()
cb <- function(...){}
curl_fetch_multi('http://jeroen.github.io/images/frink.png', pool = pool, done = cb, handle = h1)
curl_fetch_multi('http://jeroen.github.io/images/frink.png', pool = pool, done = cb, handle = h2)
return(pool)
}
test_that("Garbage collection works", {
# Should clean 0 handles
pool <- test()
expect_equal(total_handles(), 2L)
multi_run(pool = pool)
gc()
expect_equal(total_handles(), 1L)
})
rm(h1)
test_that("Garbage collection works", {
gc()
expect_equal(total_handles(), 0L)
})
# Test circular GC problems
test2 <- function(){
pool <- new_pool()
cb <- function(...){}
curl_fetch_multi('http://jeroen.github.io/images/frink.png', pool = pool, done = cb)
curl_fetch_multi('http://jeroen.github.io/images/frink.png', pool = pool, done = cb)
}
test_that("Clean up pending requets", {
test2()
gc()
expect_equal(total_handles(), 0L)
})
# Test3 circular GC problems
test3 <- function(){
pool <- new_pool()
curl_fetch_multi('https://cran.r-project.org/src/contrib/stringi_1.1.1.tar.gz', pool = pool)
curl_fetch_multi('https://cran.r-project.org/src/contrib/stringi_1.1.1.tar.gz', pool = pool)
return(pool)
}
test_that("Clean up hanging requests", {
pool <- test3()
expect_equal(total_handles(), 2L)
multi_run(0, pool = pool)
rm(pool)
gc()
expect_equal(total_handles(), 0L)
})
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