assert_non_empty_string {assertions} | R Documentation |
Assert input is a non empty character string
Description
Asserts input is a string, and nonempty (i.e. not equal to ”)
Usage
assert_non_empty_string(
x,
msg = NULL,
call = rlang::caller_env(),
arg_name = NULL
)
Arguments
x |
An object |
msg |
A character string containing the error message to display if x is not a |
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 a character vector, otherwise aborts with the error message specified by msg
Examples
try({
assert_non_empty_string("a") # Passes
assert_non_empty_string("") # Fails
})
[Package assertions version 0.1.0 Index]