forked from mirrors/nixpkgs
Merge pull request #101598 from andir/nixos-build-vms-qemu
nixos/tests: follow-up to the closure reduction PR
This commit is contained in:
Andreas Rammhold
GitHub
commit
1088f05940
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@ -3,13 +3,13 @@
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# Use a minimal kernel?
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, minimal ? false
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# Ignored
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, config ? {}
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, config ? { }
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# !!! See comment about args in lib/modules.nix
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, specialArgs ? {}
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, specialArgs ? { }
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# Modules to add to each VM
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, extraConfigurations ? [] }:
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, extraConfigurations ? [ ]
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}:
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with import ./build-vms.nix { inherit system pkgs minimal specialArgs extraConfigurations; };
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with pkgs;
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rec {
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@ -17,42 +17,41 @@ rec {
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inherit pkgs;
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mkTestDriver = let
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testDriverScript = ./test-driver/test-driver.py;
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in qemu_pkg: stdenv.mkDerivation {
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name = "nixos-test-driver";
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mkTestDriver =
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let
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testDriverScript = ./test-driver/test-driver.py;
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in
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qemu_pkg: stdenv.mkDerivation {
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name = "nixos-test-driver";
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nativeBuildInputs = [ makeWrapper ];
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buildInputs = [ (python3.withPackages (p: [ p.ptpython ])) ];
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checkInputs = with python3Packages; [ pylint black mypy ];
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nativeBuildInputs = [ makeWrapper ];
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buildInputs = [ (python3.withPackages (p: [ p.ptpython ])) ];
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checkInputs = with python3Packages; [ pylint black mypy ];
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dontUnpack = true;
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dontUnpack = true;
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preferLocalBuild = true;
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preferLocalBuild = true;
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doCheck = true;
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checkPhase = ''
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mypy --disallow-untyped-defs \
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--no-implicit-optional \
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--ignore-missing-imports ${testDriverScript}
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pylint --errors-only ${testDriverScript}
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black --check --diff ${testDriverScript}
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'';
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installPhase =
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''
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mkdir -p $out/bin
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cp ${testDriverScript} $out/bin/nixos-test-driver
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chmod u+x $out/bin/nixos-test-driver
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# TODO: copy user script part into this file (append)
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wrapProgram $out/bin/nixos-test-driver \
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--prefix PATH : "${lib.makeBinPath [ qemu_pkg vde2 netpbm coreutils ]}" \
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doCheck = true;
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checkPhase = ''
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mypy --disallow-untyped-defs \
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--no-implicit-optional \
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--ignore-missing-imports ${testDriverScript}
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pylint --errors-only ${testDriverScript}
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black --check --diff ${testDriverScript}
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'';
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};
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testDriver = mkTestDriver qemu_test;
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testDriverInteractive = mkTestDriver qemu_kvm;
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installPhase =
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''
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mkdir -p $out/bin
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cp ${testDriverScript} $out/bin/nixos-test-driver
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chmod u+x $out/bin/nixos-test-driver
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# TODO: copy user script part into this file (append)
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wrapProgram $out/bin/nixos-test-driver \
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--prefix PATH : "${lib.makeBinPath [ qemu_pkg vde2 netpbm coreutils ]}" \
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'';
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};
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# Run an automated test suite in the given virtual network.
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# `driver' is the script that runs the network.
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@ -75,11 +74,10 @@ rec {
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{ testScript
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, enableOCR ? false
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, name ? "unnamed"
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# Skip linting (mainly intended for faster dev cycles)
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# Skip linting (mainly intended for faster dev cycles)
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, skipLint ? false
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, ...
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} @ t:
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let
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# A standard store path to the vm monitor is built like this:
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# /tmp/nix-build-vm-test-run-$name.drv-0/vm-state-machine/monitor
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@ -88,25 +86,7 @@ rec {
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maxTestNameLen = 50;
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testNameLen = builtins.stringLength name;
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testDriverName = with builtins;
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if testNameLen > maxTestNameLen then
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abort ("The name of the test '${name}' must not be longer than ${toString maxTestNameLen} " +
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"it's currently ${toString testNameLen} characters long.")
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else
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"nixos-test-driver-${name}";
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nodes = buildVirtualNetwork (
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t.nodes or (if t ? machine then { machine = t.machine; } else { }));
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testScript' =
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# Call the test script with the computed nodes.
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if lib.isFunction testScript
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then testScript { inherit nodes; }
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else testScript;
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vlans = map (m: m.config.virtualisation.vlans) (lib.attrValues nodes);
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vms = map (m: m.config.system.build.vm) (lib.attrValues nodes);
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ocrProg = tesseract4.override { enableLanguages = [ "eng" ]; };
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@ -115,78 +95,124 @@ rec {
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# Generate convenience wrappers for running the test driver
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# interactively with the specified network, and for starting the
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# VMs from the command line.
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driver = testDriver:
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mkDriver = qemu_pkg:
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let
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build-vms = import ./build-vms.nix {
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inherit system pkgs minimal specialArgs;
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extraConfigurations = extraConfigurations ++ (pkgs.lib.optional (qemu_pkg != null)
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{
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virtualisation.qemu.package = qemu_pkg;
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}
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);
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};
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# FIXME: get this pkg from the module system
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testDriver = mkTestDriver (if qemu_pkg == null then pkgs.qemu_test else qemu_pkg);
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nodes = build-vms.buildVirtualNetwork (
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t.nodes or (if t ? machine then { machine = t.machine; } else { })
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);
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vlans = map (m: m.config.virtualisation.vlans) (lib.attrValues nodes);
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vms = map (m: m.config.system.build.vm) (lib.attrValues nodes);
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testScript' =
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# Call the test script with the computed nodes.
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if lib.isFunction testScript
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then testScript { inherit nodes; }
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else testScript;
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testDriverName = with builtins;
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if testNameLen > maxTestNameLen then
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abort
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("The name of the test '${name}' must not be longer than ${toString maxTestNameLen} " +
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"it's currently ${toString testNameLen} characters long.")
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else
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"nixos-test-driver-${name}";
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warn = if skipLint then lib.warn "Linting is disabled!" else lib.id;
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in
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warn (runCommand testDriverName
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{ buildInputs = [ makeWrapper];
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testScript = testScript';
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preferLocalBuild = true;
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testName = name;
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}
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''
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mkdir -p $out/bin
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{
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buildInputs = [ makeWrapper ];
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testScript = testScript';
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preferLocalBuild = true;
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testName = name;
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passthru = {
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inherit nodes;
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};
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}
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''
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mkdir -p $out/bin
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echo -n "$testScript" > $out/test-script
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${lib.optionalString (!skipLint) ''
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${python3Packages.black}/bin/black --check --diff $out/test-script
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''}
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echo -n "$testScript" > $out/test-script
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${lib.optionalString (!skipLint) ''
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${python3Packages.black}/bin/black --check --diff $out/test-script
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''}
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ln -s ${testDriver}/bin/nixos-test-driver $out/bin/
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vms=($(for i in ${toString vms}; do echo $i/bin/run-*-vm; done))
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wrapProgram $out/bin/nixos-test-driver \
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--add-flags "''${vms[*]}" \
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${lib.optionalString enableOCR
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"--prefix PATH : '${ocrProg}/bin:${imagemagick_tiff}/bin'"} \
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--run "export testScript=\"\$(${coreutils}/bin/cat $out/test-script)\"" \
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--set VLANS '${toString vlans}'
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ln -s ${testDriver}/bin/nixos-test-driver $out/bin/nixos-run-vms
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wrapProgram $out/bin/nixos-run-vms \
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--add-flags "''${vms[*]}" \
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${lib.optionalString enableOCR "--prefix PATH : '${ocrProg}/bin'"} \
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--set tests 'start_all(); join_all();' \
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--set VLANS '${toString vlans}' \
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${lib.optionalString (builtins.length vms == 1) "--set USE_SERIAL 1"}
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''); # "
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ln -s ${testDriver}/bin/nixos-test-driver $out/bin/
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vms=($(for i in ${toString vms}; do echo $i/bin/run-*-vm; done))
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wrapProgram $out/bin/nixos-test-driver \
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--add-flags "''${vms[*]}" \
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${lib.optionalString enableOCR
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"--prefix PATH : '${ocrProg}/bin:${imagemagick_tiff}/bin'"} \
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--run "export testScript=\"\$(${coreutils}/bin/cat $out/test-script)\"" \
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--set VLANS '${toString vlans}'
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ln -s ${testDriver}/bin/nixos-test-driver $out/bin/nixos-run-vms
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wrapProgram $out/bin/nixos-run-vms \
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--add-flags "''${vms[*]}" \
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${lib.optionalString enableOCR "--prefix PATH : '${ocrProg}/bin'"} \
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--set tests 'start_all(); join_all();' \
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--set VLANS '${toString vlans}' \
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${lib.optionalString (builtins.length vms == 1) "--set USE_SERIAL 1"}
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''); # "
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passMeta = drv: drv // lib.optionalAttrs (t ? meta) {
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meta = (drv.meta or {}) // t.meta;
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meta = (drv.meta or { }) // t.meta;
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};
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test = passMeta (runTests (driver testDriver));
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driver = mkDriver null;
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driverInteractive = mkDriver pkgs.qemu;
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nodeNames = builtins.attrNames nodes;
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test = passMeta (runTests driver);
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nodeNames = builtins.attrNames driver.nodes;
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invalidNodeNames = lib.filter
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(node: builtins.match "^[A-z_]([A-z0-9_]+)?$" node == null) nodeNames;
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(node: builtins.match "^[A-z_]([A-z0-9_]+)?$" node == null)
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nodeNames;
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in
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if lib.length invalidNodeNames > 0 then
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throw ''
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Cannot create machines out of (${lib.concatStringsSep ", " invalidNodeNames})!
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All machines are referenced as python variables in the testing framework which will break the
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script when special characters are used.
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if lib.length invalidNodeNames > 0 then
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throw ''
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Cannot create machines out of (${lib.concatStringsSep ", " invalidNodeNames})!
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All machines are referenced as python variables in the testing framework which will break the
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script when special characters are used.
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Please stick to alphanumeric chars and underscores as separation.
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''
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else
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test // {
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inherit nodes test;
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driver = driver testDriver;
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driverInteractive = driver testDriverInteractive;
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};
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Please stick to alphanumeric chars and underscores as separation.
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''
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else
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test // {
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inherit test driver driverInteractive;
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inherit (test) nodes;
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};
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runInMachine =
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{ drv
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, machine
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, preBuild ? ""
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, postBuild ? ""
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, qemu ? pkgs.qemu_test
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, ... # ???
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}:
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let
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vm = buildVM { }
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[ machine
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{ key = "run-in-machine";
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build-vms = import ./build-vms.nix {
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inherit system pkgs minimal specialArgs extraConfigurations;
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};
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vm = build-vms.buildVM { }
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[
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machine
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{
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key = "run-in-machine";
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networking.hostName = "client";
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nix.readOnlyStore = false;
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virtualisation.writableStore = false;
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@ -229,20 +255,20 @@ rec {
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unset xchg
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export tests='${testScript}'
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${testDriver}/bin/nixos-test-driver ${vm.config.system.build.vm}/bin/run-*-vm
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${mkTestDriver qemu}/bin/nixos-test-driver --keep-vm-state ${vm.config.system.build.vm}/bin/run-*-vm
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''; # */
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in
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lib.overrideDerivation drv (attrs: {
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requiredSystemFeatures = [ "kvm" ];
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builder = "${bash}/bin/sh";
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args = ["-e" vmRunCommand];
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origArgs = attrs.args;
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origBuilder = attrs.builder;
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});
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lib.overrideDerivation drv (attrs: {
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requiredSystemFeatures = [ "kvm" ];
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builder = "${bash}/bin/sh";
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args = [ "-e" vmRunCommand ];
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origArgs = attrs.args;
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origBuilder = attrs.builder;
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});
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runInMachineWithX = { require ? [], ... } @ args:
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runInMachineWithX = { require ? [ ], ... } @ args:
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let
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client =
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{ ... }:
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@ -258,13 +284,13 @@ rec {
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services.xserver.windowManager.icewm.enable = true;
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};
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in
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runInMachine ({
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machine = client;
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preBuild =
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''
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client.wait_for_x()
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'';
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} // args);
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runInMachine ({
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machine = client;
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preBuild =
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''
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client.wait_for_x()
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'';
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} // args);
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simpleTest = as: (makeTest as).test;
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@ -6,12 +6,7 @@
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let
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nodes = builtins.mapAttrs (vm: module: {
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_file = "${networkExpr}@node-${vm}";
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imports = [
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module
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({ pkgs, ... }: {
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virtualisation.qemu.package = pkgs.qemu;
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})
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];
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imports = [ module ];
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}) (import networkExpr);
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in
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@ -20,4 +15,4 @@ with import ../../../../lib/testing-python.nix {
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pkgs = import ../../../../.. { inherit system config; };
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};
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(makeTest { inherit nodes; testScript = ""; }).driver
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(makeTest { inherit nodes; testScript = ""; }).driverInteractive
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