push sheeet

nixos/tests/libinput.nix

@@ -0,0 +1,39 @@
+{ ... }:
+
+{
+  name = "libinput";
+
+  nodes.machine =
+    { ... }:
+    {
+      imports = [
+        ./common/x11.nix
+        ./common/user-account.nix
+      ];
+
+      test-support.displayManager.auto.user = "alice";
+
+      services.libinput = {
+        enable = true;
+        mouse = {
+          naturalScrolling = true;
+          leftHanded = true;
+          middleEmulation = false;
+          horizontalScrolling = false;
+        };
+      };
+    };
+
+  testScript = ''
+    def expect_xserver_option(option, value):
+        machine.succeed(f"""cat /var/log/X.0.log | grep -F 'Option "{option}" "{value}"'""")
+
+    machine.start()
+    machine.wait_for_x()
+    machine.succeed("""cat /var/log/X.0.log | grep -F "Using input driver 'libinput'" """)
+    expect_xserver_option("NaturalScrolling", "on")
+    expect_xserver_option("LeftHanded", "on")
+    expect_xserver_option("MiddleEmulation", "off")
+    expect_xserver_option("HorizontalScrolling", "off")
+  '';
+}