[R-pkg-devel] creating indelible file during unit test

[Thierry Onkelinx]

Dear all,

Some function I wrote deletes a bunch of files. It is crucial that all
files get deleted. Hence it should return an error when one or more
files couldn't be deleted.

I'm writing a unit test for this function. I fail to create a file
that can't be deleted by the function. I've tried Sys.chmod(file,
"000") which didn't work.

Any suggestions?

Best regards,

ir. Thierry Onkelinx
Statisticus / Statistician

Vlaamse Overheid / Government of Flanders
INSTITUUT VOOR NATUUR- EN BOSONDERZOEK / RESEARCH INSTITUTE FOR NATURE
AND FOREST
Team Biometrie & Kwaliteitszorg / Team Biometrics & Quality Assurance
thierry.onkelinx at inbo.be
Kliniekstraat 25, B-1070 Brussel
www.inbo.be

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able to say what the experiment died of. ~ Sir Ronald Aylmer Fisher
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of data. ~ John Tukey
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