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nixpkgs/nixos/tests/nixos-test-driver/lib-extend.nix
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39 lines
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Nix

{ pkgs, ... }:
let
patchedPkgs = pkgs.extend (
new: old: {
lib = old.lib.extend (
self: super: {
sorry_dave = "sorry dave";
}
);
}
);
testBody = {
name = "demo lib overlay";
nodes = {
machine =
{ lib, ... }:
{
environment.etc."got-lib-overlay".text = lib.sorry_dave;
};
};
# We don't need to run an actual test. Instead we build the `machine` configuration
# and call it a day, because that already proves that `lib` is wired up correctly.
# See the attrset returned at the bottom of this file.
testScript = "";
};
inherit (patchedPkgs.testers) nixosTest runNixOSTest;
evaluationNixosTest = nixosTest testBody;
evaluationRunNixOSTest = runNixOSTest testBody;
in
{
nixosTest = evaluationNixosTest.driver.nodes.machine.system.build.toplevel;
runNixOSTest = evaluationRunNixOSTest.driver.nodes.machine.system.build.toplevel;
}