assert_directory_exists {assertions} | R Documentation |
Assert are directory exists
Description
Assert a directory exists.
To assert all directories in a vector exist, see assert_all_directories_exist()
Usage
assert_directory_exists(
x,
msg = NULL,
call = rlang::caller_env(),
arg_name = NULL
)
Arguments
x |
Path to a directory (string) |
msg |
A character string containing the error message if file |
call |
Only relevant when pooling assertions into multi-assertion helper functions. See cli_abort for details. |
arg_name |
Advanced use only. Name of the argument passed (default: NULL, will automatically extract arg_name). |
Value
invisible(TRUE) if x
is exists and is a directory, otherwise aborts with the error message specified by msg
Examples
try({
assert_directory_exists(system.file("package = assertions")) # PASS
assert_all_directories_exist("foo") # Throws Error
})
[Package assertions version 0.1.0 Index]