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nixpkgs/nixos/tests/emacs-daemon.nix

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Nix

import ./make-test.nix ({ pkgs, ...} : {
name = "emacs-daemon";
meta = with pkgs.stdenv.lib.maintainers; {
maintainers = [ ];
};
enableOCR = true;
machine =
{ ... }:
{ imports = [ ./common/x11.nix ];
services.emacs = {
enable = true;
defaultEditor = true;
};
# Important to get the systemd service running for root
environment.variables.XDG_RUNTIME_DIR = "/run/user/0";
environment.variables.TEST_SYSTEM_VARIABLE = "system variable";
};
testScript =
''
$machine->waitForUnit("multi-user.target");
# checks that the EDITOR environment variable is set
$machine->succeed("test \$(basename \"\$EDITOR\") = emacseditor");
# waits for the emacs service to be ready
$machine->waitUntilSucceeds("systemctl --user status emacs.service | grep 'Active: active'");
# connects to the daemon
$machine->succeed("emacsclient --create-frame \$EDITOR &");
# checks that Emacs shows the edited filename
$machine->waitForText("emacseditor");
# makes sure environment variables are accessible from Emacs
$machine->succeed("emacsclient --eval '(getenv \"TEST_SYSTEM_VARIABLE\")'") =~ /system variable/ or die;
$machine->screenshot("emacsclient");
'';
})