assert_identical: Assert that the input object is identical to a specified...

In assertions: Simple Assertions for Beautiful and Customisable Error Messages

Assert that the input object is identical to a specified value

Description

Assert that the input object is identical to a specified value

Usage

assert_identical(x, y, msg = NULL, call = rlang::caller_env(), arg_name = NULL)

Arguments

x	An object to check
y	The value to compare against
msg	A character string containing the error message to display if x is not identical to the specified value
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 identical to the specified value, otherwise aborts with the error message specified by msg

Examples

try({
assert_identical(3, 3) # Passes
assert_identical(c(3, 3, 3), 3) # Throws error
assert_identical(2, 3) # Throws error
})

assertions documentation built on April 3, 2025, 5:52 p.m.