uchecks: Extra Check Functions for RUnit

In pkgmaker: Package development utilities

Description

checkWarning checks if a warning is generated by an expression, and optionally follows an expected regular expression pattern.

Usage

  checkWarning(expr, expected = TRUE, msg = NULL)

Arguments

expr	an R expression
expected	expected value as regular expression pattern. If a logical, then it specifies if a warning is expected or not. For backward compatibility, a NULL value is equivalent to TRUE.
msg	informative message to add to the error in case of failure

Examples

# check warnings
checkWarning({ warning('ah ah'); 3})
checkWarning({ warning('ah oh ah'); 3}, 'oh')
try( checkWarning(3) )
try( checkWarning({ warning('ah ah'); 3}, 'warn you') )

pkgmaker documentation built on May 2, 2019, 4:42 p.m.