import ./make-test-python.nix ({ lib, pkgs, ... }: { name = "cups-pdf"; nodes.machine = { pkgs, ... }: { imports = [ ./common/user-account.nix ]; environment.systemPackages = [ pkgs.poppler_utils ]; fonts.fonts = [ pkgs.dejavu_fonts ]; # yields more OCR-able pdf services.printing.cups-pdf.enable = true; services.printing.cups-pdf.instances = { opt = {}; noopt.installPrinter = false; }; hardware.printers.ensurePrinters = [{ name = "noopt"; model = "CUPS-PDF_noopt.ppd"; deviceUri = "cups-pdf:/noopt"; }]; }; # we cannot check the files with pdftotext, due to # https://github.com/alexivkin/CUPS-PDF-to-PDF/issues/7 # we need `imagemagickBig` as it has ghostscript support testScript = '' from subprocess import run machine.wait_for_unit("multi-user.target") for name in ("opt", "noopt"): text = f"test text {name}".upper() machine.wait_until_succeeds(f"lpstat -v {name}") machine.succeed(f"su - alice -c 'echo -e \"\n {text}\" | lp -d {name}'") # wait until the pdf files are completely produced and readable by alice machine.wait_until_succeeds(f"su - alice -c 'pdfinfo /var/spool/cups-pdf-{name}/users/alice/*.pdf'") machine.succeed(f"cp /var/spool/cups-pdf-{name}/users/alice/*.pdf /tmp/{name}.pdf") machine.copy_from_vm(f"/tmp/{name}.pdf", "") run(f"${pkgs.imagemagickBig}/bin/convert -density 300 $out/{name}.pdf $out/{name}.jpeg", shell=True, check=True) assert text.encode() in run(f"${lib.getExe pkgs.tesseract} $out/{name}.jpeg stdout", shell=True, check=True, capture_output=True).stdout ''; meta.maintainers = [ lib.maintainers.yarny ]; })