diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
new file mode 100644
index 0000000..a92f638
--- /dev/null
+++ b/.github/workflows/main.yml
@@ -0,0 +1,21 @@
+name: ci
+
+on: [push, pull_request]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+      - uses: denoland/setup-deno@main
+        with:
+          deno-version: "1.39.1"
+      - name: Run fmt
+        run: |
+          deno fmt --check
+      - name: Run lint
+        run: |
+          deno lint
+      - name: Run tests
+        run: |
+          deno test -A ./tests
diff --git a/public/daily_result/submit.js b/public/daily_result/submit.js
index 1eb80d4..1a97d34 100644
--- a/public/daily_result/submit.js
+++ b/public/daily_result/submit.js
@@ -1,4 +1,3 @@
-
 window.onload = async (event) => {
   const current_user_profile = await JSON.parse(
     localStorage.getItem("current_user"),
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);
+});