diff --git a/tests/modules/files.nix b/tests/modules/files.nix
new file mode 100644
index 00000000..6ee3cbc3
--- /dev/null
+++ b/tests/modules/files.nix
@@ -0,0 +1,16 @@
+{
+  after = {
+    files."after/ftplugin/python.lua" = {
+      localOptions.conceallevel = 1;
+
+      keymaps = [
+        {
+          mode = "n";
+          key = "<C-g>";
+          action = ":!python script.py<CR>";
+          options.silent = true;
+        }
+      ];
+    };
+  };
+}