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test_that("all condition handlers first capture output", {
test <- function() {
plot(1, main = "one")
message("this is an message!")
plot(2, main = "two")
warning("this is a warning")
plot(3, main = "three")
stop("this is an error")
}
expect_output_types(
evaluate("test()"),
c("source", "plot", "message", "plot", "warning", "plot", "error")
)
})
test_that("conditions get calls stripped", {
expect_equal(evaluate("warning('x')")[[2]]$call, NULL)
expect_equal(evaluate("stop('x')")[[2]]$call, NULL)
# including errors emitted by C
expect_equal(evaluate("mpg")[[2]]$call, NULL)
expect_equal(evaluate("3()")[[2]]$call, NULL)
})
test_that("envvar overrides keep_* arguments", {
withr::local_envvar(R_EVALUATE_BYPASS_MESSAGES = "true")
expect_message(ev <- evaluate("message('Hi!')", keep_message = FALSE), "Hi")
expect_output_types(ev, "source")
expect_warning(ev <- evaluate("warning('Hi!')", keep_warning = FALSE), "Hi")
expect_output_types(ev, "source")
})
# messages --------------------------------------------------------------------
test_that("all three states of keep_message work as expected", {
test <- function() {
message("Hi!")
}
# message captured in output
expect_no_message(ev <- evaluate("test()", keep_message = TRUE))
expect_output_types(ev, c("source", "message"))
# message propagated
expect_message(ev <- evaluate("test()", keep_message = NA), "Hi")
expect_output_types(ev, "source")
# message ignored
expect_no_message(ev <- evaluate("test()", keep_message = FALSE))
expect_output_types(ev, "source")
})
# warnings --------------------------------------------------------------------
test_that("respects warn options", {
# suppress warnings
withr::local_options(warn = -1)
ev <- evaluate("warning('hi')")
expect_output_types(ev, "source")
# delayed warnings are always immediate in knitr
withr::local_options(warn = 0)
ev <- evaluate("warning('hi')")
expect_output_types(ev, c("source", "warning"))
# immediate warnings
withr::local_options(warn = 1)
ev <- evaluate("warning('hi')")
expect_output_types(ev, c("source", "warning"))
# warnings become errors
withr::local_options(warn = 2)
ev <- evaluate("warning('hi')")
expect_output_types(ev, c("source", "error"))
})
test_that("all three states of keep_warning work as expected", {
test <- function() {
warning("Hi!")
}
# warning captured in output
expect_no_warning(ev <- evaluate("test()", keep_warning = TRUE))
expect_output_types(ev, c("source", "warning"))
# warning propagated
expect_warning(ev <- evaluate("test()", keep_warning = NA), "Hi")
expect_output_types(ev, "source")
# warning ignored
expect_no_warning(ev <- evaluate("test()", keep_warning = FALSE))
expect_output_types(ev, "source")
})
test_that("log_warning causes warnings to be emitted", {
f <- function() {
warning("Hi!", immediate. = TRUE)
}
expect_snapshot(ev <- evaluate("f()", log_warning = TRUE))
# And still recorded in eval result
expect_output_types(ev, c("source", "warning"))
expect_equal(ev[[1]]$src, "f()\n")
expect_equal(ev[[2]], simpleWarning("Hi!", quote(f())))
})
# errors ----------------------------------------------------------------------
test_that("an error terminates evaluation of multi-expression input", {
ev <- evaluate("stop('1');2\n3")
expect_output_types(ev, c("source", "error", "source", "text"))
expect_equal(ev[[1]]$src, "stop('1');2\n")
ev <- evaluate("stop('1');2\n3", stop_on_error = 1L)
expect_equal(ev[[1]]$src, "stop('1');2\n")
expect_output_types(ev, c("source", "error"))
})
test_that("all three values of stop_on_error work as expected", {
ev <- evaluate('stop("1")\n2', stop_on_error = 0L)
expect_output_types(ev, c("source", "error", "source", "text"))
ev <- evaluate('stop("1")\n2', stop_on_error = 1L)
expect_output_types(ev, c("source", "error"))
expect_snapshot(ev <- evaluate("stop(\"1\")\n2", stop_on_error = 2L), error = TRUE)
})
test_that("errors during printing are captured", {
methods::setClass("A", contains = "function", where = environment())
methods::setMethod("show", "A", function(object) stop("B"))
a <- methods::new("A", function() b)
ev <- evaluate("a")
expect_output_types(ev, c("source", "error"))
})
test_that("Error can be entraced and correctly handled in outputs", {
skip_if_not_installed("rlang")
skip_if_not_installed("knitr")
skip_if_not_installed("callr")
skip_on_cran()
# install dev version of package in temp directory
withr::local_temp_libpaths()
quick_install(pkgload::pkg_path("."), lib = .libPaths()[1])
out <- withr::local_tempfile(fileext = ".txt")
# Checking different way to entrace with evaluate
## No trace
callr::rscript(test_path("ressources/with-stop-error-no-trace.R"), fail_on_status = FALSE, show = FALSE, stderr = out)
expect_snapshot_file(out, name = 'stop-error-no-trace.txt')
## Using calling.handler in evaluate's output handler
callr::rscript(test_path("ressources/with-stop-error-trace.R"), fail_on_status = FALSE, show = FALSE, stderr = out)
expect_snapshot_file(out, name = 'stop-error-trace-calling-handler.txt')
## Using withCallingHandler()
callr::rscript(test_path("ressources/with-stop-error-wch.R"), fail_on_status = FALSE, show = FALSE, stderr = out)
expect_snapshot_file(out, name = 'stop-error-trace-wch.txt')
## Using abort() in evaluated code
callr::rscript(test_path("ressources/with-abort-error.R"), fail_on_status = FALSE, show = FALSE, stderr = out)
expect_snapshot_file(out, name = 'abort-error.txt')
# setting option rlang_trace_top_env modified opt-out default evaluate trace trimming
callr::rscript(test_path("ressources/with-stop-error-trace-trim.R"), fail_on_status = FALSE, show = FALSE, stderr = out)
expect_snapshot_file(out, name = 'stop-error-trace-trim.txt',
transform = function(lines) gsub("\\s*at evaluate/R/.*\\.R(:\\d+)*", "", lines))
# Checking error thrown when in rmarkdown and knitr context
rscript <- withr::local_tempfile(fileext = ".R")
out2 <- normalizePath(withr::local_tempfile(fileext = ".md"), winslash = "/", mustWork = FALSE)
writeLines(c(
"options(knitr.chunk.error = FALSE)",
sprintf('knitr::knit("%s", output = "%s")', test_path("ressources/with-stop-error-auto-entrace.Rmd"), out2)
), con = rscript)
callr::rscript(rscript, fail_on_status = FALSE, show = FALSE, stderr = out)
expect_snapshot_file(out, name = 'rmd-stop-error-auto-entrace.txt')
writeLines(c(
"options(knitr.chunk.error = FALSE)",
sprintf('res <- knitr::knit("%s", output = "%s")', test_path("ressources/with-abort-error.Rmd"), out2)
), con = rscript)
callr::rscript(rscript, fail_on_status = FALSE, show = FALSE, stderr = out)
expect_snapshot_file(out, name = 'rmd-abort-error.txt')
# Checking error captured in cell output in rmarkdown and knitr context
withr::with_options(list(options(knitr.chunk.error = TRUE)), {
expect_snapshot_file(
knitr::knit(test_path("ressources/with-stop-error-auto-entrace.Rmd"), output = out, quiet = TRUE),
name = "rmd-stop-error.md"
)
expect_snapshot_file(
knitr::knit(test_path("ressources/with-stop-error-sewed.Rmd"), output = out, quiet = TRUE),
name = "rmd-stop-error-entrace-sewed.md"
)
expect_snapshot_file(
knitr::knit(test_path("ressources/with-abort-error.Rmd"), output = out, quiet = TRUE),
name = "rmd-abort-error.md"
)
})
})
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