diff --git a/release.nix b/release.nix
index d6dfbb60..b4c6904e 100644
--- a/release.nix
+++ b/release.nix
@@ -102,6 +102,7 @@ let
     tests.system-path-fish = makeTest ./tests/system-path-fish.nix;
     tests.system-path-zsh = makeTest ./tests/system-path-zsh.nix;
     tests.system-shells = makeTest ./tests/system-shells.nix;
+    tests.users-groups = makeTest ./tests/users-groups.nix;
 
   }
   // (mapTestOn (packagePlatforms packageSet));
diff --git a/tests/users-groups.nix b/tests/users-groups.nix
new file mode 100644
index 00000000..88e04d10
--- /dev/null
+++ b/tests/users-groups.nix
@@ -0,0 +1,20 @@
+{ config, pkgs, ... }:
+
+{
+  users.knownGroups = [ "foo" "bar" ];
+  users.groups.foo.gid = 42000;
+  users.groups.foo.description = "Foo group";
+
+  users.groups.baz.gid = 43000;
+
+  test = ''
+    echo "checking group creation in /activate" >&2
+    grep "dscl . -create '/Groups/foo' PrimaryGroupID 42000" ${config.out}/activate
+    grep "dscl . -create '/Groups/foo' RealName 'Foo group'" ${config.out}/activate
+    echo "checking group deletion in /activate" >&2
+    grep "dscl . -delete '/Groups/bar'" ${config.out}/activate
+    echo "checking unknown group in /activate" >&2
+    grep -qv "dscl . -create '/Groups/bar'" ${config.out}/activate
+    grep -qv "dscl . -delete '/Groups/bar'" ${config.out}/activate
+  '';
+}