atOnExit
Register Expression to Run at the End of an assertionTest
Description
A test file run by assertionTest often starts by creating some objects
or files. Call atOnExit() right after creating those things
to ensure they are removed when assertionTest is done.
Usage
atOnExit(expr)
Arguments
| expr |
An unevaluated expression, typically one like rm(x) or unlink(file).
|
Details
The last expression to be registered will be run first.
If one calls assertionTest(cleanup=FALSE,...) then the expression in
atOnExit will not be run at the conclusion of assertionTest.
Value
It always returns TRUE.
See Also
Examples
# Put the following in a test.t file and run it with assertionTest:
{ testx <- log(1:10) ; file <- tempfile()
atOnExit({unlink(file);rm(testx,file)}) }
{
writeBin(testx, file)
atOnExit(rm(testy)) ;
testy <- readBin(file, what=numeric(), n=length(testx))
identical(testx, testy)
}
# see example test files in assertionTest/test-ex
assertionTest(system.file(package="assertionTest", "test-ex", "clean.t"))