test_that("`cargo_command_available()` returns TRUE when `try_exec_cmd()` returns not `NA`", {
local_mocked_bindings(try_exec_cmd = function(...) {
"output"
})
expect_true(cargo_command_available())
})
test_that("`cargo_command_available()` returns FALSE when `try_exec_cmd()` returns `NA`", {
local_mocked_bindings(try_exec_cmd = function(...) {
NA_character_
})
expect_false(cargo_command_available())
})
test_that("`try_exec_cmd()` returns `NA` when command is not available", {
expect_true(is.na(try_exec_cmd("invalidcmdname")))
})
test_that("`try_exec_cmd()` returns stdout when command is available", {
echo <- "This is an echo"
expect_equal(try_exec_cmd("echo", echo), echo)
})
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.