jest test and its config added

Author: Amanuel-Abera

.eslintrc.json

@@ -1,3 +1,8 @@
 {
-  "extends": ["next/core-web-vitals", "next/typescript"]
+  "extends": [
+    "next/core-web-vitals",
+    "next/typescript",
+    "plugin:testing-library/react",
+    "plugin:jest-dom/recommended"
+  ]
 }

.github/workflows/ci.yml

@@ -34,6 +34,7 @@ jobs:
               working-directory: ./
               run: |
                 npm install
+                npm test
 
 
     Lint:

__tests__/Home.test.tsx

@@ -0,0 +1,16 @@
+import {render, screen} from "@testing-library/react"
+import Home from "@/app/page"
+
+describe('first', () => { 
+
+    it('should render home text', () => {
+        render(<Home/>)  //ARRANGE
+
+        const myElem = screen.getByText('Home') //ACT
+
+        expect(myElem).toBeInTheDocument(); //ASSERTION
+
+        
+    })
+
+ })

app/page.tsx

@@ -1,101 +1,8 @@
-import Image from "next/image";
 
-export default function Home() {
+const Home = () => {
   return (
-    <div className="grid grid-rows-[20px_1fr_20px] items-center justify-items-center min-h-screen p-8 pb-20 gap-16 sm:p-20 font-[family-name:var(--font-geist-sans)]">
-      <main className="flex flex-col gap-8 row-start-2 items-center sm:items-start">
-        <Image
-          className="dark:invert"
-          src="/next.svg"
-          alt="Next.js logo"
-          width={180}
-          height={38}
-          priority
-        />
-        <ol className="list-inside list-decimal text-sm text-center sm:text-left font-[family-name:var(--font-geist-mono)]">
-          <li className="mb-2">
-            Get started by editing{" "}
-            <code className="bg-black/[.05] dark:bg-white/[.06] px-1 py-0.5 rounded font-semibold">
-              app/page.tsx
-            </code>
-            .
-          </li>
-          <li>Save and see your changes instantly.</li>
-        </ol>
-
-        <div className="flex gap-4 items-center flex-col sm:flex-row">
-          <a
-            className="rounded-full border border-solid border-transparent transition-colors flex items-center justify-center bg-foreground text-background gap-2 hover:bg-[#383838] dark:hover:bg-[#ccc] text-sm sm:text-base h-10 sm:h-12 px-4 sm:px-5"
-            href="https://vercel.com/new?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
-            target="_blank"
-            rel="noopener noreferrer"
-          >
-            <Image
-              className="dark:invert"
-              src="/vercel.svg"
-              alt="Vercel logomark"
-              width={20}
-              height={20}
-            />
-            Deploy now
-          </a>
-          <a
-            className="rounded-full border border-solid border-black/[.08] dark:border-white/[.145] transition-colors flex items-center justify-center hover:bg-[#f2f2f2] dark:hover:bg-[#1a1a1a] hover:border-transparent text-sm sm:text-base h-10 sm:h-12 px-4 sm:px-5 sm:min-w-44"
-            href="https://nextjs.org/docs?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
-            target="_blank"
-            rel="noopener noreferrer"
-          >
-            Read our docs
-          </a>
-        </div>
-      </main>
-      <footer className="row-start-3 flex gap-6 flex-wrap items-center justify-center">
-        <a
-          className="flex items-center gap-2 hover:underline hover:underline-offset-4"
-          href="https://nextjs.org/learn?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
-          target="_blank"
-          rel="noopener noreferrer"
-        >
-          <Image
-            aria-hidden
-            src="/file.svg"
-            alt="File icon"
-            width={16}
-            height={16}
-          />
-          Learn
-        </a>
-        <a
-          className="flex items-center gap-2 hover:underline hover:underline-offset-4"
-          href="https://vercel.com/templates?framework=next.js&utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
-          target="_blank"
-          rel="noopener noreferrer"
-        >
-          <Image
-            aria-hidden
-            src="/window.svg"
-            alt="Window icon"
-            width={16}
-            height={16}
-          />
-          Examples
-        </a>
-        <a
-          className="flex items-center gap-2 hover:underline hover:underline-offset-4"
-          href="https://nextjs.org?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
-          target="_blank"
-          rel="noopener noreferrer"
-        >
-          <Image
-            aria-hidden
-            src="/globe.svg"
-            alt="Globe icon"
-            width={16}
-            height={16}
-          />
-          Go to nextjs.org →
-        </a>
-      </footer>
-    </div>
-  );
+    <h1>Home</h1>
+  )
 }
+
+export default Home

jest.config.js

@@ -0,0 +1,18 @@
+const nextJest = require('next/jest')
+ 
+/** @type {import('jest').Config} */
+const createJestConfig = nextJest({
+  // Provide the path to your Next.js app to load next.config.js and .env files in your test environment
+  dir: './',
+})
+ 
+// Add any custom config to be passed to Jest
+const config = {
+  coverageProvider: 'v8',
+  testEnvironment: 'jsdom',
+  // Add more setup options before each test is run
+  setupFilesAfterEnv: ['<rootDir>/jest.setup.js']
+}
+ 
+// createJestConfig is exported this way to ensure that next/jest can load the Next.js config which is async
+module.exports = createJestConfig(config)

jest.setup.js

@@ -0,0 +1 @@
+import '@testing-library/jest-dom'