nix/tests/nix-copy-closure.nix
aszlig 5cfdf16dd6
Convert VM tests to Python
Perl-based tests are deprecated since NixOS 20.03 and subsequently got
removed in NixOS 20.09, which effectively means that tests are going to
fail as soon as we build it with NixOS 20.09 or anything newer.

I've put "# fmt: off" at the start of every testScript, because
formatting with Black really messes up indentation and I don't think it
really adds anything in value or readability for inlined Python scripts.

Signed-off-by: aszlig <aszlig@nix.build>
2020-10-17 23:32:03 +02:00

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# Test nix-copy-closure.
{ nixpkgs, system, overlay }:
with import (nixpkgs + "/nixos/lib/testing-python.nix") {
inherit system;
extraConfigurations = [ { nixpkgs.overlays = [ overlay ]; } ];
};
makeTest (let pkgA = pkgs.cowsay; pkgB = pkgs.wget; pkgC = pkgs.hello; in {
nodes =
{ client =
{ config, lib, pkgs, ... }:
{ virtualisation.writableStore = true;
virtualisation.pathsInNixDB = [ pkgA ];
nix.binaryCaches = lib.mkForce [ ];
};
server =
{ config, pkgs, ... }:
{ services.openssh.enable = true;
virtualisation.writableStore = true;
virtualisation.pathsInNixDB = [ pkgB pkgC ];
};
};
testScript = { nodes }: ''
# fmt: off
import subprocess
start_all()
# Create an SSH key on the client.
subprocess.run([
"${pkgs.openssh}/bin/ssh-keygen", "-t", "ed25519", "-f", "key", "-N", ""
], capture_output=True, check=True)
client.succeed("mkdir -m 700 /root/.ssh")
client.copy_from_host("key", "/root/.ssh/id_ed25519")
client.succeed("chmod 600 /root/.ssh/id_ed25519")
# Install the SSH key on the server.
server.succeed("mkdir -m 700 /root/.ssh")
server.copy_from_host("key.pub", "/root/.ssh/authorized_keys")
server.wait_for_unit("sshd")
client.wait_for_unit("network.target")
client.succeed(f"ssh -o StrictHostKeyChecking=no {server.name} 'echo hello world'")
# Copy the closure of package A from the client to the server.
server.fail("nix-store --check-validity ${pkgA}")
client.succeed("nix-copy-closure --to server --gzip ${pkgA} >&2")
server.succeed("nix-store --check-validity ${pkgA}")
# Copy the closure of package B from the server to the client.
client.fail("nix-store --check-validity ${pkgB}")
client.succeed("nix-copy-closure --from server --gzip ${pkgB} >&2")
client.succeed("nix-store --check-validity ${pkgB}")
# Copy the closure of package C via the SSH substituter.
client.fail("nix-store -r ${pkgC}")
# FIXME
# client.succeed(
# "nix-store --option use-ssh-substituter true"
# " --option ssh-substituter-hosts root\@server"
# " -r ${pkgC} >&2"
# )
# client.succeed("nix-store --check-validity ${pkgC}")
'';
})