nix-bitcoin/test/lib/make-test.nix

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pkgs:
let
makeVM = import ./make-test-vm.nix pkgs;
inherit (pkgs) lib;
in
name: testConfig:
{
vm = makeVM {
name = "nix-bitcoin-${name}";
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nodes.machine = { config, ... }: {
imports = [ testConfig ];
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virtualisation = {
# Needed because duplicity requires 270 MB of free temp space, regardless of backup size
diskSize = 1024;
# Min. 800 MiB needed to avoid 'out of memory' errors
memorySize = lib.mkDefault 2048;
cores = lib.mkDefault 2;
};
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# Run shellcheck on all nix-bitcoin services during machine build time
system.extraDependencies = [ config.test.shellcheckServices ];
};
testScript = nodes: let
cfg = nodes.nodes.machine.config;
data = {
data = cfg.test.data;
tests = cfg.tests;
};
dataFile = pkgs.writeText "test-data" (builtins.toJSON data);
initData = ''
import json
with open("${dataFile}") as f:
data = json.load(f)
enabled_tests = set(test for (test, enabled) in data["tests"].items() if enabled)
test_data = data["data"]
'';
in
builtins.concatStringsSep "\n\n" [
initData
(builtins.readFile ./../tests.py)
cfg.test.extraTestScript
# Don't run tests in interactive mode.
# is_interactive is set in ../run-tests.sh
''
if not "is_interactive" in vars():
run_tests()
''
];
};
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container = {
# The container name has a 11 char length limit
containers.nb-test = { config, ... }: {
imports = [
{
config = {
extra = config.config.test.container;
config = testConfig;
};
}
# Enable FUSE inside the container when clightning replication
# is enabled.
# TODO-EXTERNAL: Remove this when
# https://github.com/systemd/systemd/issues/17607
# has been resolved. This will also improve security.
(
let
clightning = config.config.services.clightning;
in
lib.mkIf (clightning.enable && clightning.replication.enable) {
bindMounts."/dev/fuse" = { hostPath = "/dev/fuse"; };
allowedDevices = [ { node = "/dev/fuse"; modifier = "rw"; } ];
}
)
];
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};
};
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# This allows running a test scenario in a regular NixOS VM.
# No tests are executed.
vmWithoutTests = (pkgs.nixos ({ config, ... }: {
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imports = [
testConfig
"${toString pkgs.path}/nixos/modules/virtualisation/qemu-vm.nix"
];
virtualisation.graphics = false;
services.getty.autologinUser = "root";
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# Provide a shortcut for instant poweroff from within the machine
environment.systemPackages = with pkgs; [
(lowPrio (writeScriptBin "q" ''
echo o >/proc/sysrq-trigger
''))
];
system.stateVersion = lib.mkDefault config.system.nixos.release;
})).config.system.build.vm;
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config = testConfig;
}