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|
{ nixpkgs, services, system }:
with import ./build-vms.nix { inherit nixpkgs services system; };
with pkgs;
rec {
inherit pkgs;
# Run an automated test suite in the given virtual network.
# `network' must be the result of a call to the
# `buildVirtualNetwork' function. `tests' is a Perl fragment
# describing the tests.
runTests = network: tests:
stdenv.mkDerivation {
name = "vm-test-run";
requiredSystemFeatures = [ "kvm" ];
inherit tests;
buildInputs = [ pkgs.qemu_kvm pkgs.imagemagick ];
buildCommand =
''
mkdir $out
cp ${./test-driver/Machine.pm} Machine.pm
ensureDir $out/nix-support
${perl}/bin/perl ${./test-driver/test-driver.pl} ${network}/vms/*/bin/run-*-vm
for i in */coverage-data; do
ensureDir $out/coverage-data
mv $i $out/coverage-data/$(dirname $i)
done
touch $out/nix-support/hydra-build-products
for i in $out/*.png; do
echo "report screenshot $i" >> $out/nix-support/hydra-build-products
done
''; # */
};
# Generate a coverage report from the coverage data produced by
# runTests.
makeReport = x: runCommand "report" { buildInputs = [rsync]; }
''
for d in ${x}/coverage-data/*; do
echo "doing $d"
ensureDir $TMPDIR/gcov/
for i in $(cd $d/nix/store && ls); do
if ! test -e $TMPDIR/gcov/nix/store/$i; then
echo "copying $i"
mkdir -p $TMPDIR/gcov/$(echo $i | cut -c34-)
rsync -rv /nix/store/$i/.build/* $TMPDIR/gcov/
fi
done
chmod -R u+w $TMPDIR/gcov
find $TMPDIR/gcov -name "*.gcda" -exec rm {} \;
for i in $(cd $d/nix/store && ls); do
rsync -rv $d/nix/store/$i/.build/* $TMPDIR/gcov/
done
find $TMPDIR/gcov -name "*.gcda" -exec chmod 644 {} \;
echo "producing info..."
${pkgs.lcov}/bin/geninfo --ignore-errors source,gcov $TMPDIR/gcov --output-file $TMPDIR/app.info
cat $TMPDIR/app.info >> $TMPDIR/full.info
done
echo "making report..."
ensureDir $out/coverage
${pkgs.lcov}/bin/genhtml --show-details $TMPDIR/full.info -o $out/coverage
cp $TMPDIR/full.info $out/coverage/
ensureDir $out/nix-support
echo "report coverage $out/coverage" >> $out/nix-support/hydra-build-products
''; # */
makeTest = testFun: complete (call testFun);
makeTests = testsFun: lib.mapAttrs (name: complete) (call testsFun);
apply = makeTest; # compatibility
call = f: f { inherit pkgs nixpkgs system; };
complete = t: t // rec {
nodes =
if t ? nodes then t.nodes else
if t ? machine then { machine = t.machine; }
else { };
vms = buildVirtualNetwork { inherit nodes; };
test = runTests vms
# Call the test script with the computed nodes.
(if builtins.isFunction t.testScript then t.testScript { inherit (vms) nodes; } else t.testScript);
report = makeReport test;
};
runInMachine =
{ drv
, machine
, preBuild ? ""
, postBuild ? ""
, ...
}:
let
vms =
buildVirtualNetwork { nodes = { client = machine; } ; };
buildrunner = writeText "vm-build" ''
source $1
${coreutils}/bin/mkdir -p $TMPDIR
cd $TMPDIR
$origBuilder $origArgs
exit $?
'';
testscript = ''
startAll;
${preBuild}
print STDERR $client->mustSucceed("env -i ${pkgs.bash}/bin/bash ${buildrunner} /hostfs".$client->stateDir."/saved-env");
${postBuild}
'';
vmRunCommand = writeText "vm-run" ''
${coreutils}/bin/mkdir -p client
export > client/saved-env
export PATH=${qemu_kvm}/bin:${coreutils}/bin
cp ${./test-driver/Machine.pm} Machine.pm
export tests='${testscript}'
${perl}/bin/perl ${./test-driver/test-driver.pl} ${vms}/vms/*/bin/run-*-vm
''; # */
in
lib.overrideDerivation drv (attrs: {
requiredSystemFeatures = [ "kvm" ];
builder = "${bash}/bin/sh";
args = ["-e" vmRunCommand];
origArgs = attrs.args;
origBuilder = attrs.builder;
});
runInMachineWithX = { require ? [], ...}@args :
let
client =
{ config, pkgs, ... }:
{
inherit require;
virtualisation.memorySize = 1024;
services.xserver.enable = true;
services.xserver.displayManager.slim.enable = false;
services.xserver.displayManager.auto.enable = true;
services.xserver.windowManager.default = "icewm";
services.xserver.windowManager.icewm.enable = true;
services.xserver.desktopManager.default = "none";
};
in
runInMachine ({
machine = client;
preBuild = ''
$client->waitForX;
'' ;
} // args );
simpleTest = as: (makeTest ({ ... }: as)).test;
}
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