diff --git a/tests/modules/services/caffeine/basic-service-expected.service b/tests/modules/services/caffeine/basic-service-expected.service
new file mode 100644
index 000000000..324f7e597
--- /dev/null
+++ b/tests/modules/services/caffeine/basic-service-expected.service
@@ -0,0 +1,13 @@
+[Install]
+WantedBy=graphical-session.target
+
+[Service]
+ExecStart=@caffeine-ng@/bin/caffeine
+PrivateTmp=true
+ProtectSystem=full
+Restart=on-failure
+Slice=session.slice
+Type=exec
+
+[Unit]
+Description=caffeine
diff --git a/tests/modules/services/caffeine/basic-service.nix b/tests/modules/services/caffeine/basic-service.nix
new file mode 100644
index 000000000..06ae0a4b0
--- /dev/null
+++ b/tests/modules/services/caffeine/basic-service.nix
@@ -0,0 +1,15 @@
+{ config, ... }:
+
+{
+  config = {
+    services.caffeine = {
+      enable = true;
+    };
+
+    nmt.script = ''
+      assertFileContent \
+        home-files/.config/systemd/user/caffeine.service \
+        ${./basic-service-expected.service}
+    '';
+  };
+}
diff --git a/tests/modules/services/caffeine/default.nix b/tests/modules/services/caffeine/default.nix
new file mode 100644
index 000000000..6dcd20420
--- /dev/null
+++ b/tests/modules/services/caffeine/default.nix
@@ -0,0 +1,5 @@
+{ lib, pkgs, ... }:
+
+lib.optionalAttrs pkgs.stdenv.hostPlatform.isLinux {
+  caffeine-basic-service = ./basic-service.nix;
+}