chore: React Test Library experiments app (#1447)

mdjastrzebski · web-flow · commit e69402bc13a5 · 2023-08-10T22:15:08.000+02:00
* chore: React Test Library experiments app

* chore: fix lint

* chore: fix tests
diff --git a/.eslintignore b/.eslintignore
@@ -1,2 +1,3 @@
 flow-typed/
 build/
+experiments-rtl/
diff --git a/experiments-rtl/.babelrc b/experiments-rtl/.babelrc
@@ -0,0 +1,8 @@
+{
+  "presets": [
+    "@babel/preset-typescript",
+    "@babel/preset-react",
+    "@babel/preset-env"
+  ],
+  "plugins": []
+}
diff --git a/experiments-rtl/.eslintrc.json b/experiments-rtl/.eslintrc.json
@@ -0,0 +1,3 @@
+{
+  "extends": "next/core-web-vitals"
+}
diff --git a/experiments-rtl/.gitignore b/experiments-rtl/.gitignore
@@ -0,0 +1,35 @@
+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+/coverage
+
+# next.js
+/.next/
+/out/
+
+# production
+/build
+
+# misc
+.DS_Store
+*.pem
+
+# debug
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# local env files
+.env*.local
+
+# vercel
+.vercel
+
+# typescript
+*.tsbuildinfo
+next-env.d.ts
diff --git a/experiments-rtl/README.md b/experiments-rtl/README.md
@@ -0,0 +1,34 @@
+This is a [Next.js](https://nextjs.org/) project bootstrapped with [`create-next-app`](https://github.com/vercel/next.js/tree/canary/packages/create-next-app).
+
+## Getting Started
+
+First, run the development server:
+
+```bash
+npm run dev
+# or
+yarn dev
+# or
+pnpm dev
+```
+
+Open [http://localhost:3000](http://localhost:3000) with your browser to see the result.
+
+You can start editing the page by modifying `app/page.tsx`. The page auto-updates as you edit the file.
+
+This project uses [`next/font`](https://nextjs.org/docs/basic-features/font-optimization) to automatically optimize and load Inter, a custom Google Font.
+
+## Learn More
+
+To learn more about Next.js, take a look at the following resources:
+
+- [Next.js Documentation](https://nextjs.org/docs) - learn about Next.js features and API.
+- [Learn Next.js](https://nextjs.org/learn) - an interactive Next.js tutorial.
+
+You can check out [the Next.js GitHub repository](https://github.com/vercel/next.js/) - your feedback and contributions are welcome!
+
+## Deploy on Vercel
+
+The easiest way to deploy your Next.js app is to use the [Vercel Platform](https://vercel.com/new?utm_medium=default-template&filter=next.js&utm_source=create-next-app&utm_campaign=create-next-app-readme) from the creators of Next.js.
+
+Check out our [Next.js deployment documentation](https://nextjs.org/docs/deployment) for more details.
diff --git a/experiments-rtl/jest-setup.js b/experiments-rtl/jest-setup.js
@@ -0,0 +1 @@
+import "@testing-library/jest-dom";
diff --git a/experiments-rtl/jest.config.js b/experiments-rtl/jest.config.js
@@ -0,0 +1,4 @@
+module.exports = {
+  testEnvironment: "jsdom",
+  setupFilesAfterEnv: ["<rootDir>/jest-setup.js"],
+};
diff --git a/experiments-rtl/next.config.js b/experiments-rtl/next.config.js
@@ -0,0 +1,4 @@
+/** @type {import('next').NextConfig} */
+const nextConfig = {}
+
+module.exports = nextConfig
diff --git a/experiments-rtl/package.json b/experiments-rtl/package.json
@@ -0,0 +1,38 @@
+{
+  "name": "react-testing-library-experiments",
+  "version": "0.1.0",
+  "private": true,
+  "scripts": {
+    "dev": "next dev",
+    "build": "next build",
+    "start": "next start",
+    "test": "jest",
+    "lint": "next lint"
+  },
+  "dependencies": {
+    "@types/node": "20.4.9",
+    "@types/react": "18.2.19",
+    "@types/react-dom": "18.2.7",
+    "autoprefixer": "10.4.14",
+    "eslint": "8.46.0",
+    "eslint-config-next": "13.4.13",
+    "next": "13.4.13",
+    "postcss": "8.4.27",
+    "react": "18.2.0",
+    "react-dom": "18.2.0",
+    "tailwindcss": "3.3.3",
+    "typescript": "5.1.6"
+  },
+  "devDependencies": {
+    "@babel/preset-env": "^7.22.10",
+    "@babel/preset-react": "^7.22.5",
+    "@babel/preset-typescript": "^7.22.5",
+    "@testing-library/jest-dom": "^5.17.0",
+    "@testing-library/react": "^14.0.0",
+    "@testing-library/user-event": "^14.4.3",
+    "@types/jest": "^29.5.3",
+    "jest": "^29.6.2",
+    "jest-environment-jsdom": "^29.6.2",
+    "prettier": "^3.0.1"
+  }
+}
diff --git a/experiments-rtl/postcss.config.js b/experiments-rtl/postcss.config.js
@@ -0,0 +1,6 @@
+module.exports = {
+  plugins: {
+    tailwindcss: {},
+    autoprefixer: {},
+  },
+}
diff --git a/experiments-rtl/public/next.svg b/experiments-rtl/public/next.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 394 80"><path fill="#000" d="M262 0h68.5v12.7h-27.2v66.6h-13.6V12.7H262V0ZM149 0v12.7H94v20.4h44.3v12.6H94v21h55v12.6H80.5V0h68.7zm34.3 0h-17.8l63.8 79.4h17.9l-32-39.7 32-39.6h-17.9l-23 28.6-23-28.6zm18.3 56.7-9-11-27.1 33.7h17.8l18.3-22.7z"/><path fill="#000" d="M81 79.3 17 0H0v79.3h13.6V17l50.2 62.3H81Zm252.6-.4c-1 0-1.8-.4-2.5-1s-1.1-1.6-1.1-2.6.3-1.8 1-2.5 1.6-1 2.6-1 1.8.3 2.5 1a3.4 3.4 0 0 1 .6 4.3 3.7 3.7 0 0 1-3 1.8zm23.2-33.5h6v23.3c0 2.1-.4 4-1.3 5.5a9.1 9.1 0 0 1-3.8 3.5c-1.6.8-3.5 1.3-5.7 1.3-2 0-3.7-.4-5.3-1s-2.8-1.8-3.7-3.2c-.9-1.3-1.4-3-1.4-5h6c.1.8.3 1.6.7 2.2s1 1.2 1.6 1.5c.7.4 1.5.5 2.4.5 1 0 1.8-.2 2.4-.6a4 4 0 0 0 1.6-1.8c.3-.8.5-1.8.5-3V45.5zm30.9 9.1a4.4 4.4 0 0 0-2-3.3 7.5 7.5 0 0 0-4.3-1.1c-1.3 0-2.4.2-3.3.5-.9.4-1.6 1-2 1.6a3.5 3.5 0 0 0-.3 4c.3.5.7.9 1.3 1.2l1.8 1 2 .5 3.2.8c1.3.3 2.5.7 3.7 1.2a13 13 0 0 1 3.2 1.8 8.1 8.1 0 0 1 3 6.5c0 2-.5 3.7-1.5 5.1a10 10 0 0 1-4.4 3.5c-1.8.8-4.1 1.2-6.8 1.2-2.6 0-4.9-.4-6.8-1.2-2-.8-3.4-2-4.5-3.5a10 10 0 0 1-1.7-5.6h6a5 5 0 0 0 3.5 4.6c1 .4 2.2.6 3.4.6 1.3 0 2.5-.2 3.5-.6 1-.4 1.8-1 2.4-1.7a4 4 0 0 0 .8-2.4c0-.9-.2-1.6-.7-2.2a11 11 0 0 0-2.1-1.4l-3.2-1-3.8-1c-2.8-.7-5-1.7-6.6-3.2a7.2 7.2 0 0 1-2.4-5.7 8 8 0 0 1 1.7-5 10 10 0 0 1 4.3-3.5c2-.8 4-1.2 6.4-1.2 2.3 0 4.4.4 6.2 1.2 1.8.8 3.2 2 4.3 3.4 1 1.4 1.5 3 1.5 5h-5.8z"/></svg>
diff --git a/experiments-rtl/public/vercel.svg b/experiments-rtl/public/vercel.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 283 64"><path fill="black" d="M141 16c-11 0-19 7-19 18s9 18 20 18c7 0 13-3 16-7l-7-5c-2 3-6 4-9 4-5 0-9-3-10-7h28v-3c0-11-8-18-19-18zm-9 15c1-4 4-7 9-7s8 3 9 7h-18zm117-15c-11 0-19 7-19 18s9 18 20 18c6 0 12-3 16-7l-8-5c-2 3-5 4-8 4-5 0-9-3-11-7h28l1-3c0-11-8-18-19-18zm-10 15c2-4 5-7 10-7s8 3 9 7h-19zm-39 3c0 6 4 10 10 10 4 0 7-2 9-5l8 5c-3 5-9 8-17 8-11 0-19-7-19-18s8-18 19-18c8 0 14 3 17 8l-8 5c-2-3-5-5-9-5-6 0-10 4-10 10zm83-29v46h-9V5h9zM37 0l37 64H0L37 0zm92 5-27 48L74 5h10l18 30 17-30h10zm59 12v10l-3-1c-6 0-10 4-10 10v15h-9V17h9v9c0-5 6-9 13-9z"/></svg>
diff --git a/experiments-rtl/src/app/__tests__/click.test.tsx b/experiments-rtl/src/app/__tests__/click.test.tsx
@@ -0,0 +1,31 @@
+import * as React from "react";
+import { render, screen, fireEvent } from "@testing-library/react";
+import userEvent from "@testing-library/user-event";
+
+test("userEvent.click()", async () => {
+  const handleClick = jest.fn();
+
+  render(
+    <button onClick={handleClick} disabled={false}>
+      Click
+    </button>
+  );
+
+  const button = screen.getByText("Click");
+  await userEvent.click(button);
+  expect(handleClick).toHaveBeenCalledTimes(1);
+});
+
+test("fireEvent.click()", () => {
+  const handleClick = jest.fn();
+
+  render(
+    <button onClick={handleClick} disabled={false}>
+      Click
+    </button>
+  );
+
+  const button = screen.getByText("Click");
+  fireEvent.click(button);
+  expect(handleClick).toHaveBeenCalledTimes(1);
+});
diff --git a/experiments-rtl/src/app/__tests__/managed-text-input.test.tsx b/experiments-rtl/src/app/__tests__/managed-text-input.test.tsx
@@ -0,0 +1,51 @@
+import * as React from "react";
+import { render, screen, fireEvent } from "@testing-library/react";
+import userEvent from "@testing-library/user-event";
+
+interface ManagedInputProps {
+  defaultValue?: string;
+  disabled?: boolean;
+}
+
+function ManagedInput({ defaultValue, ...props }: ManagedInputProps) {
+  const [value, setValue] = React.useState(defaultValue ?? "");
+
+  return (
+    <input
+      type="text"
+      value={value}
+      onChange={(e) => setValue(e.currentTarget.value)}
+      {...props}
+    />
+  );
+}
+
+test("userEvent.type()", async () => {
+  render(
+    <ManagedInput data-testid="input" defaultValue="Hello" disabled={false} />
+  );
+
+  const input = screen.getByTestId("input");
+  await userEvent.type(input, " World");
+  expect(input).toHaveValue("Hello World");
+});
+
+test("userEvent.clear()", async () => {
+  render(
+    <ManagedInput data-testid="input" defaultValue="Hello" disabled={false} />
+  );
+
+  const input = screen.getByTestId("input");
+  await userEvent.clear(input);
+  expect(input).toHaveValue("");
+});
+
+test("fireEvent.change()", () => {
+  render(
+    <ManagedInput data-testid="input" defaultValue="Hello" disabled={false} />
+  );
+
+  const input = screen.getByTestId("input");
+  fireEvent.change(input, { target: { value: "World" } });
+  expect(input).toHaveValue("World");
+});
diff --git a/experiments-rtl/src/app/globals.css b/experiments-rtl/src/app/globals.css
@@ -0,0 +1,27 @@
+@tailwind base;
+@tailwind components;
+@tailwind utilities;
+
+:root {
+  --foreground-rgb: 0, 0, 0;
+  --background-start-rgb: 214, 219, 220;
+  --background-end-rgb: 255, 255, 255;
+}
+
+@media (prefers-color-scheme: dark) {
+  :root {
+    --foreground-rgb: 255, 255, 255;
+    --background-start-rgb: 0, 0, 0;
+    --background-end-rgb: 0, 0, 0;
+  }
+}
+
+body {
+  color: rgb(var(--foreground-rgb));
+  background: linear-gradient(
+      to bottom,
+      transparent,
+      rgb(var(--background-end-rgb))
+    )
+    rgb(var(--background-start-rgb));
+}
diff --git a/experiments-rtl/src/app/layout.tsx b/experiments-rtl/src/app/layout.tsx
@@ -0,0 +1,22 @@
+import './globals.css'
+import type { Metadata } from 'next'
+import { Inter } from 'next/font/google'
+
+const inter = Inter({ subsets: ['latin'] })
+
+export const metadata: Metadata = {
+  title: 'Create Next App',
+  description: 'Generated by create next app',
+}
+
+export default function RootLayout({
+  children,
+}: {
+  children: React.ReactNode
+}) {
+  return (
+    <html lang="en">
+      <body className={inter.className}>{children}</body>
+    </html>
+  )
+}
diff --git a/experiments-rtl/src/app/page.tsx b/experiments-rtl/src/app/page.tsx
diff --git a/experiments-rtl/tailwind.config.ts b/experiments-rtl/tailwind.config.ts
diff --git a/experiments-rtl/tsconfig.json b/experiments-rtl/tsconfig.json
diff --git a/experiments-rtl/yarn.lock b/experiments-rtl/yarn.lock
diff --git a/package.json b/package.json

Original file line number	Diff line number	Diff line change
`@@ -1,2 +1,3 @@`
`1`	`1`	`flow-typed/`
`2`	`2`	`build/`
	`3`	`+experiments-rtl/`
Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+{`
	`2`	`+ "extends": "next/core-web-vitals"`
	`3`	`+}`