add react-rstest example

rsbuild/react-rstest/.gitignore

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+# Local
+.DS_Store
+*.local
+*.log*
+
+# Dist
+node_modules
+dist/
+
+# IDE
+.vscode/*
+!.vscode/extensions.json
+.idea

rsbuild/react-rstest/README.md

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+# Rsbuild Project
+
+## Setup
+
+Install the dependencies:
+
+```bash
+pnpm install
+```
+
+## Get Started
+
+Start the dev server:
+
+```bash
+pnpm dev
+```
+
+Build the app for production:
+
+```bash
+pnpm build
+```
+
+Preview the production build locally:
+
+```bash
+pnpm preview
+```
+
+Run unit tests via Rstest:
+
+```bash
+pnpm test
+```

rsbuild/react-rstest/package.json

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+{
+  "name": "rsbuild-react-rstest",
+  "version": "1.0.0",
+  "private": true,
+  "scripts": {
+    "build": "rsbuild build",
+    "dev": "rsbuild dev --open",
+    "preview": "rsbuild preview",
+    "test": "rstest run"
+  },
+  "dependencies": {
+    "react": "^19.1.0",
+    "react-dom": "^19.1.0"
+  },
+  "devDependencies": {
+    "@rsbuild/core": "^1.4.8",
+    "@rsbuild/plugin-react": "^1.1.1",
+    "@testing-library/jest-dom": "^6.6.3",
+    "@testing-library/react": "^16.2.0",
+    "@types/react": "^19.0.12",
+    "@types/react-dom": "^19.0.4",
+    "@rstest/core": "0.0.10",
+    "ts-node": "^10.9.2",
+    "typescript": "^5.8.2"
+  }
+}

rsbuild/react-rstest/rsbuild.config.ts

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+import { defineConfig } from '@rsbuild/core';
+import { pluginReact } from '@rsbuild/plugin-react';
+
+export default defineConfig({
+  plugins: [pluginReact()],
+});

rsbuild/react-rstest/rstest.config.ts

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+import { defineConfig } from '@rstest/core';
+import rsbuildConfig from './rsbuild.config';
+
+export default defineConfig({
+  ...rsbuildConfig,
+  testEnvironment: 'jsdom',
+  globals: true,
+  setupFiles: ['./rstest.setup.ts'],
+});

rsbuild/react-rstest/rstest.setup.ts

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+import '@testing-library/jest-dom';

rsbuild/react-rstest/src/App.css

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+body {
+  margin: 0;
+  color: #fff;
+  font-family: Inter, Avenir, Helvetica, Arial, sans-serif;
+  background-image: linear-gradient(to bottom, #020917, #101725);
+}
+
+.content {
+  display: flex;
+  min-height: 100vh;
+  line-height: 1.1;
+  text-align: center;
+  flex-direction: column;
+  justify-content: center;
+}
+
+.content h1 {
+  font-size: 3.6rem;
+  font-weight: 700;
+}
+
+.content p {
+  font-size: 1.2rem;
+  font-weight: 400;
+  opacity: 0.5;
+}

rsbuild/react-rstest/src/App.tsx

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+import './App.css';
+
+const App = () => {
+  return (
+    <div className="content">
+      <h1>Rsbuild with React</h1>
+      <p>Start building amazing things with Rsbuild.</p>
+    </div>
+  );
+};
+
+export default App;

rsbuild/react-rstest/src/env.d.ts

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+/// <reference types="@rsbuild/core/types" />

rsbuild/react-rstest/src/index.tsx

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+import React from 'react';
+import ReactDOM from 'react-dom/client';
+import App from './App';
+
+const root = ReactDOM.createRoot(document.getElementById('root')!);
+root.render(
+  <React.StrictMode>
+    <App />
+  </React.StrictMode>,
+);

rsbuild/react-rstest/tests/App.spec.tsx

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+import { render, screen } from '@testing-library/react';
+import App from '../src/App';
+
+test('Renders the main page', () => {
+  const testMessage = 'Rsbuild with React';
+  render(<App />);
+  expect(screen.getByText(testMessage)).toBeInTheDocument();
+});

rsbuild/react-rstest/tests/tsconfig.json

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+{
+  "extends": "../tsconfig.json",
+  "compilerOptions": {
+    "types": ["@testing-library/jest-dom"]
+  },
+  "include": ["./"]
+}

rsbuild/react-rstest/tsconfig.json

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+{
+  "compilerOptions": {
+    "target": "ES2020",
+    "lib": ["DOM", "ES2020"],
+    "module": "ESNext",
+    "jsx": "react-jsx",
+    "strict": true,
+    "skipLibCheck": true,
+    "isolatedModules": true,
+    "resolveJsonModule": true,
+    "moduleResolution": "bundler",
+    "useDefineForClassFields": true
+  },
+  "include": ["src"]
+}