1 files changed, 100 insertions, 0 deletions
diff --git a/nixpkgs/nixos/tests/systemd.nix b/nixpkgs/nixos/tests/systemd.nix
new file mode 100644
index 000000000000..1c201e3b5dcc
--- /dev/null
+++ b/nixpkgs/nixos/tests/systemd.nix
@@ -0,0 +1,100 @@
+import ./make-test.nix ({ pkgs, ... }: {
+  name = "systemd";
+
+  machine = { lib, ... }: {
+    imports = [ common/user-account.nix common/x11.nix ];
+
+    virtualisation.emptyDiskImages = [ 512 ];
+
+    fileSystems = lib.mkVMOverride {
+      "/test-x-initrd-mount" = {
+        device = "/dev/vdb";
+        fsType = "ext2";
+        autoFormat = true;
+        noCheck = true;
+        options = [ "x-initrd.mount" ];
+      };
+    };
+
+    systemd.extraConfig = "DefaultEnvironment=\"XXX_SYSTEM=foo\"";
+    systemd.user.extraConfig = "DefaultEnvironment=\"XXX_USER=bar\"";
+    services.journald.extraConfig = "Storage=volatile";
+    services.xserver.displayManager.auto.user = "alice";
+
+    systemd.shutdown.test = pkgs.writeScript "test.shutdown" ''
+      #!${pkgs.stdenv.shell}
+      PATH=${lib.makeBinPath (with pkgs; [ utillinux coreutils ])}
+      mount -t 9p shared -o trans=virtio,version=9p2000.L /tmp/shared
+      touch /tmp/shared/shutdown-test
+      umount /tmp/shared
+    '';
+
+    systemd.services.testservice1 = {
+      description = "Test Service 1";
+      wantedBy = [ "multi-user.target" ];
+      serviceConfig.Type = "oneshot";
+      script = ''
+        if [ "$XXX_SYSTEM" = foo ]; then
+          touch /system_conf_read
+        fi
+      '';
+    };
+
+    systemd.user.services.testservice2 = {
+      description = "Test Service 2";
+      wantedBy = [ "default.target" ];
+      serviceConfig.Type = "oneshot";
+      script = ''
+        if [ "$XXX_USER" = bar ]; then
+          touch "$HOME/user_conf_read"
+        fi
+      '';
+    };
+  };
+
+  testScript = ''
+    $machine->waitForX;
+    # wait for user services
+    $machine->waitForUnit("default.target","alice");
+
+    # Regression test for https://github.com/NixOS/nixpkgs/issues/35415
+    subtest "configuration files are recognized by systemd", sub {
+      $machine->succeed('test -e /system_conf_read');
+      $machine->succeed('test -e /home/alice/user_conf_read');
+      $machine->succeed('test -z $(ls -1 /var/log/journal)');
+    };
+
+    # Regression test for https://github.com/NixOS/nixpkgs/issues/50273
+    subtest "DynamicUser actually allocates a user", sub {
+        $machine->succeed('systemd-run --pty --property=Type=oneshot --property=DynamicUser=yes --property=User=iamatest whoami | grep iamatest');
+    };
+
+    # Regression test for https://github.com/NixOS/nixpkgs/issues/35268
+    subtest "file system with x-initrd.mount is not unmounted", sub {
+      $machine->shutdown;
+      $machine->waitForUnit('multi-user.target');
+      # If the file system was unmounted during the shutdown the file system
+      # has a last mount time, because the file system wasn't checked.
+      $machine->fail('dumpe2fs /dev/vdb | grep -q "^Last mount time: *n/a"');
+    };
+
+    subtest "systemd-shutdown works", sub {
+      $machine->shutdown;
+      $machine->waitForUnit('multi-user.target');
+      $machine->succeed('test -e /tmp/shared/shutdown-test');
+    };
+
+   # Test settings from /etc/sysctl.d/50-default.conf are applied
+   subtest "systemd sysctl settings are applied", sub {
+     $machine->waitForUnit('multi-user.target');
+     $machine->succeed('sysctl net.core.default_qdisc | grep -q "fq_codel"');
+   };
+
+   # Test cgroup accounting is enabled
+   subtest "systemd cgroup accounting is enabled", sub {
+     $machine->waitForUnit('multi-user.target');
+     $machine->succeed('systemctl show testservice1.service -p IOAccounting | grep -q "yes"');
+     $machine->succeed('systemctl status testservice1.service | grep -q "CPU:"');
+   };
+  '';
+})