let
  tools = import ../tools.nix {};
in tools.makeTest {
  name = "colmena-parallel";

  bundle = ./.;

  testScript = ''
    deployer.succeed("cd /tmp/bundle &&" \
        "${tools.colmenaExec} apply push -v --eval-node-limit 4 --on @target")

    logs = deployer.succeed("cd /tmp/bundle &&" \
        "run-copy-stderr ${tools.colmenaExec} apply switch -v --eval-node-limit 4 --parallel 4 --on @target")

    for node in [alpha, beta, gamma]:
        node.succeed("grep SUCCESS /etc/deployment")

    with subtest("Check that activation is correctly parallelized"):
        timestamps = list(map(lambda l: int(l.strip().split("---")[1]) / 1000000,
            filter(lambda l: "Activation triggered" in l, logs.split("\n"))))

        delay = max(timestamps) - min(timestamps)
        deployer.log(f"Time between activations: {delay}ms")

        assert delay < 2000
  '';
}