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53729841e8
The cups-pdf vm test previously waited for the
activation of `cups.service` before testing anything.
This method fails since
47d9e7d3d7
as cups auto-stops if it is not used,
causing the test framework to complain
that `cups.service` will never start.
The commit at hand alters the test so it
simply waits for `multi-user.target`.
We could also switch to `cups.socket`,
but `multi-user.target` seems to be more robust
concerning future changes in the cups mechanisms.
40 lines
1.7 KiB
Nix
40 lines
1.7 KiB
Nix
import ./make-test-python.nix ({ lib, pkgs, ... }: {
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name = "cups-pdf";
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nodes.machine = { pkgs, ... }: {
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imports = [ ./common/user-account.nix ];
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environment.systemPackages = [ pkgs.poppler_utils ];
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fonts.fonts = [ pkgs.dejavu_fonts ]; # yields more OCR-able pdf
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services.printing.cups-pdf.enable = true;
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services.printing.cups-pdf.instances = {
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opt = {};
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noopt.installPrinter = false;
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};
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hardware.printers.ensurePrinters = [{
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name = "noopt";
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model = "CUPS-PDF_noopt.ppd";
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deviceUri = "cups-pdf:/noopt";
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}];
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};
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# we cannot check the files with pdftotext, due to
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# https://github.com/alexivkin/CUPS-PDF-to-PDF/issues/7
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# we need `imagemagickBig` as it has ghostscript support
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testScript = ''
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from subprocess import run
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machine.wait_for_unit("multi-user.target")
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for name in ("opt", "noopt"):
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text = f"test text {name}".upper()
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machine.wait_until_succeeds(f"lpstat -v {name}")
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machine.succeed(f"su - alice -c 'echo -e \"\n {text}\" | lp -d {name}'")
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# wait until the pdf files are completely produced and readable by alice
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machine.wait_until_succeeds(f"su - alice -c 'pdfinfo /var/spool/cups-pdf-{name}/users/alice/*.pdf'")
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machine.succeed(f"cp /var/spool/cups-pdf-{name}/users/alice/*.pdf /tmp/{name}.pdf")
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machine.copy_from_vm(f"/tmp/{name}.pdf", "")
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run(f"${pkgs.imagemagickBig}/bin/convert -density 300 $out/{name}.pdf $out/{name}.jpeg", shell=True, check=True)
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assert text.encode() in run(f"${lib.getExe pkgs.tesseract} $out/{name}.jpeg stdout", shell=True, check=True, capture_output=True).stdout
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'';
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meta.maintainers = [ lib.maintainers.yarny ];
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})
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