diff --git a/tests/distilled_user_test.js b/tests/distilled_user_test.js
new file mode 100644
index 0000000..6ea5084
--- /dev/null
+++ b/tests/distilled_user_test.js
@@ -0,0 +1,5 @@
+import { assertEquals } from "https://deno.land/std@0.224.0/assert/mod.ts";
+
+Deno.test("デモテスト", () => {
+  assertEquals(1 + 1, 2);
+});