Re: implementing autopkgtest for CUPS-PDF

[Didier 'OdyX' Raboud <odyx@debian.org>]

Le lundi, 8 mars 2021, 12.00:00 h CET Martin-Éric Racine a écrit :
> Greetings!
> 
> I've been looking at the autopkgtest specifications for a while and
> trying to think of what would be a suitable test to implement.  I was
> thus wondering whether any of the other CUPS backends comes with any
> autopkgtest case that I could learn from or whether anyone on this
> list has any clue of what would be good things to test for with
> CUPS-PDF?

So what I've done in CUPS is the following:

- re-use Fedora's tests, that'll run several printing tests against an
  installed CUPS server:
https://sources.debian.org/src/cups/2.3.3op2-3/debian/tests/cups-basiccommands

- wrote a "test-drivers" script, ready for re-use by driver packages; it
  will loop over the provided list of drivers, setup a CUPS printer with that
  driver, configured to "print to file", loop over a folder of files (usually
  PDFs) and print them to this printer; verify that the resulting raw content
  is not empty; then cleanup:
https://sources.debian.org/src/cups/2.3.3op2-3/debian/tests/utils/test-drivers

(It tries to have sane defaults, like picking files out of CUPS' data path 
/usr/share/cups/data/, which has default template and weird russian forms.)

This then allows driver packages to use that script for simple autopkgtest
test scripts, such as CUPS' which is basically

$ /usr/share/cups/test-drivers -l 'raw' -p ./test/ 2>/dev/null

See:
https://sources.debian.org/src/cups/2.3.3op2-3/debian/tests/cups-core-drivers

For the printers drivers I maintain, I have then usually done variations of
this:

. /usr/share/cups/ppd-updaters/printer-driver-escpr.ppd-updater
/usr/share/cups/test-drivers -n adt-test-escpr-0 -r $DRIVER_REGEXP

See:
https://sources.debian.org/src/epson-inkjet-printer-escpr/1.7.8-1/debian/tests/printer-driver-escpr


Now. For CUPS-PDF, I'd definitely add an autopkgtest, and testing this on
salsa, with the Salsa CI Team Pipeline is a good way to get these tests
running without having to do the setup locally:
	https://salsa.debian.org/salsa-ci-team/pipeline/

For a start, I'd try to use this CUPS script (or a variation inspired by
it, with a CUPS-PDF driver, and would print PDFs through it.

Would you need assistance for doing so? (That'd go to experimental anyway,
given the freeze status we're in, but it's worth doing in any case!)

Best regards, and happy to help if you so wish!

	OdyX