initial commit

__test__/index.test.js

@@ -0,0 +1,14 @@
+const request = require("supertest");
+const app = require("../index");
+
+describe("Get route", () => {
+  it("page should return hello world", async () => {
+    const res = await request(app).get("/");
+    expect(res.statusCode).toEqual(200);
+    expect(res.body).toEqual("Hello world");
+  });
+});
+
+afterAll(async () => {
+  await app.close();
+});