test: check init lingering timeout behaviour

This checks init timeout on lingering process after initial process termination.

Signed-off-by: Ophestra <cat@gensokyo.uk>

test/configuration.nix

@@ -112,7 +112,31 @@
         };
       };
 
+    commonPaths = [
+      {
+        type = "bind";
+        src = "/var/tmp";
+        write = true;
+      }
+    ];
+
     apps = {
+      "cat.gensokyo.extern.bash.linger-timeout" = {
+        name = "hakurei-check-linger-timeout";
+        identity = 9999;
+        share = pkgs.bash;
+        packages = [ pkgs.bash ];
+        command = ''
+          sleep infinity & disown
+          exit
+        '';
+        wait_delay = 1;
+        enablements = {
+          wayland = false;
+          pulse = false;
+        };
+      };
+
       "cat.gensokyo.extern.foot.noEnablements" = {
         name = "ne-foot";
         identity = 1;

test/test.py

@@ -103,6 +103,15 @@ if denyOutput != "hsu: uid 1001 is not in the hsurc file\n":
 if denyOutputVerbose != "hsu: uid 1001 is not in the hsurc file\nhakurei: *cannot obtain uid from setuid wrapper: current user is not in the hsurc file\n":
     raise Exception(f"unexpected deny verbose output:\n{denyOutputVerbose}")
 
+# Verify timeout behaviour:
+machine.succeed('sudo -u alice -i hakurei-check-linger-timeout > /var/tmp/linger-stdout 2> /var/tmp/linger-stderr')
+linger_stdout = machine.succeed("cat /var/tmp/linger-stdout")
+linger_stderr = machine.succeed("cat /var/tmp/linger-stderr")
+if linger_stdout != "":
+    raise Exception(f"unexpected stdout: {linger_stdout}")
+if linger_stderr != "init: timeout exceeded waiting for lingering processes\n":
+    raise Exception(f"unexpected stderr: {linger_stderr}")
+
 check_offset = 0