test_that("process works", {
px <- get_tool("px")
p <- process$new(px, c("sleep", "5"))
on.exit(try_silently(p$kill(grace = 0)), add = TRUE)
expect_true(p$is_alive())
})
test_that("get_exit_status", {
px <- get_tool("px")
p <- process$new(px, c("return", "1"))
on.exit(p$kill(), add = TRUE)
p$wait()
expect_identical(p$get_exit_status(), 1L)
})
test_that("non existing process", {
expect_error(process$new(tempfile()))
## This closes connections in finalizers
gc()
})
test_that("post processing", {
px <- get_tool("px")
p <- process$new(
px, c("return", "0"), post_process = function() "foobar")
p$wait(5000)
p$kill()
expect_equal(p$get_result(), "foobar")
p <- process$new(
px, c("sleep", "5"), post_process = function() "yep")
expect_error(p$get_result(), "alive")
p$kill()
expect_equal(p$get_result(), "yep")
## Only runs once
xx <- 0
p <- process$new(
px, c("return", "0"), post_process = function() xx <<- xx + 1)
p$wait(5000)
p$kill()
p$get_result()
expect_equal(xx, 1)
p$get_result()
expect_equal(xx, 1)
})
test_that("working directory", {
px <- get_tool("px")
dir.create(tmp <- tempfile())
on.exit(unlink(tmp, recursive = TRUE), add = TRUE)
cat("foo\nbar\n", file = file.path(tmp, "file"))
p <- process$new(px, c("cat", "file"), wd = tmp, stdout = "|")
on.exit(p$kill(), add = TRUE)
p$wait()
expect_equal(p$read_all_output_lines(), c("foo", "bar"))
})
test_that("working directory does not exist", {
px <- get_tool("px")
expect_error(process$new(px, wd = tempfile()))
## This closes connections in finalizers
gc()
})
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