reduxjs · EskiMojo14 · Jan 10, 2024 · Jan 10, 2024 · Jan 11, 2024 · Jan 11, 2024
diff --git a/.codesandbox/ci.json b/.codesandbox/ci.json
@@ -6,9 +6,10 @@
     "/examples/query/react/basic",
     "/examples/query/react/advanced",
     "/examples/action-listener/counter",
+    "/examples/lazy-injection/counter-todo",
     "/examples/publish-ci/cra5"
   ],
-  "node": "16",
+  "node": "18",
   "buildCommand": "build:packages",
   "packages": [
     "packages/toolkit",

diff --git a/examples/lazy-injection/counter-todo/.eslintrc.json b/examples/lazy-injection/counter-todo/.eslintrc.json
@@ -0,0 +1,17 @@
+{
+  "extends": ["react-app"],
+  "rules": {
+    "@typescript-eslint/no-restricted-imports": [
+      2,
+      {
+        "paths": [
+          {
+            "name": "react-redux",
+            "importNames": ["useSelector", "useStore", "useDispatch"],
+            "message": "Please use pre-typed versions from `src/app/hooks.ts` instead."
+          }
+        ]
+      }
+    ]
+  }
+}
diff --git a/examples/lazy-injection/counter-todo/.gitignore b/examples/lazy-injection/counter-todo/.gitignore
@@ -0,0 +1,30 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+
+# Dependencies
+node_modules
+.yarn/*
+!.yarn/patches
+!.yarn/plugins
+!.yarn/releases
+!.yarn/sdks
+!.yarn/versions
+# Swap the comments on the following lines if you don't wish to use zero-installs
+# Documentation here: https://yarnpkg.com/features/zero-installs
+!.yarn/cache
+#.pnp.*
+
+# Testing
+coverage
+
+# Production
+build
+
+# Miscellaneous
+*.local
diff --git a/examples/lazy-injection/counter-todo/.prettierrc.json b/examples/lazy-injection/counter-todo/.prettierrc.json
@@ -0,0 +1,4 @@
+{
+  "semi": false,
+  "arrowParens": "avoid"
+}
diff --git a/examples/lazy-injection/counter-todo/README.md b/examples/lazy-injection/counter-todo/README.md
@@ -0,0 +1,27 @@
+# vite-template-redux
+
+Uses [Vite](https://vitejs.dev/), [Vitest](https://vitest.dev/), and [React Testing Library](https://github.com/testing-library/react-testing-library) to create a modern [React](https://react.dev/) app compatible with [Create React App](https://create-react-app.dev/)
+
+```sh
+npx degit reduxjs/redux-templates/packages/vite-template-redux my-app
+```
+
+## Goals
+
+- Easy migration from Create React App or Vite
+- As beginner friendly as Create React App
+- Optimized performance compared to Create React App
+- Customizable without ejecting
+
+## Scripts
+
+- `dev`/`start` - start dev server and open browser
+- `build` - build for production
+- `preview` - locally preview production build
+- `test` - launch test runner
+
+## Inspiration
+
+- [Create React App](https://github.com/facebook/create-react-app/tree/main/packages/cra-template)
+- [Vite](https://github.com/vitejs/vite/tree/main/packages/create-vite/template-react)
+- [Vitest](https://github.com/vitest-dev/vitest/tree/main/examples/react-testing-lib)
diff --git a/examples/lazy-injection/counter-todo/index.html b/examples/lazy-injection/counter-todo/index.html
@@ -0,0 +1,14 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <link rel="icon" type="image/svg+xml" href="/vite.svg" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>React Redux App</title>
+  </head>
+  <body>
+    <noscript>You need to enable JavaScript to run this app.</noscript>
+    <div id="root"></div>
+    <script type="module" src="/src/main.tsx"></script>
+  </body>
+</html>
diff --git a/examples/lazy-injection/counter-todo/package.json b/examples/lazy-injection/counter-todo/package.json
@@ -0,0 +1,42 @@
+{
+  "name": "@examples-lazy-injection/counter-todo",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "start": "vite",
+    "build": "tsc && vite build",
+    "preview": "vite preview",
+    "test": "vitest run",
+    "test:watch": "vitest watch",
+    "format": "prettier --write .",
+    "lint": "eslint .",
+    "type-check": "tsc"
+  },
+  "dependencies": {
+    "@reduxjs/toolkit": "https://pkg.csb.dev/reduxjs/redux-toolkit/commit/4fe0b237/@reduxjs/toolkit/_pkg.tgz",
+    "clsx": "^2.1.0",
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0",
+    "react-lazily": "^0.9.2",
+    "react-redux": "^9.0.4"
+  },
+  "devDependencies": {
+    "@testing-library/dom": "^9.3.3",
+    "@testing-library/jest-dom": "^6.1.6",
+    "@testing-library/react": "^14.1.2",
+    "@testing-library/user-event": "^14.5.2",
+    "@types/react": "^18.2.46",
+    "@types/react-dom": "^18.2.18",
+    "@vitejs/plugin-react": "^4.2.1",
+    "eslint": "^8.56.0",
+    "eslint-config-react-app": "^7.0.1",
+    "eslint-plugin-prettier": "^5.1.2",
+    "jsdom": "^23.0.1",
+    "prettier": "^3.1.1",
+    "typescript": "^5.3.3",
+    "vite": "^5.0.10",
+    "vitest": "^1.1.1"
+  }
+}
diff --git a/examples/lazy-injection/counter-todo/src/App.css b/examples/lazy-injection/counter-todo/src/App.css
@@ -0,0 +1,39 @@
+.App {
+  text-align: center;
+}
+
+.App-logo {
+  height: 40vmin;
+  pointer-events: none;
+}
+
+@media (prefers-reduced-motion: no-preference) {
+  .App-logo {
+    animation: App-logo-float infinite 3s ease-in-out;
+  }
+}
+
+.App-header {
+  min-height: 100vh;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  font-size: calc(10px + 2vmin);
+}
+
+.App-link {
+  color: rgb(112, 76, 182);
+}
+
+@keyframes App-logo-float {
+  0% {
+    transform: translateY(0);
+  }
+  50% {
+    transform: translateY(10px);
+  }
+  100% {
+    transform: translateY(0px);
+  }
+}
diff --git a/examples/lazy-injection/counter-todo/src/App.test.tsx b/examples/lazy-injection/counter-todo/src/App.test.tsx
@@ -0,0 +1,122 @@
+import { screen, waitFor } from "@testing-library/react"
+import App from "./App"
+import { renderWithProviders } from "./utils/test-utils"
+import userEvent from "@testing-library/user-event"
+
+async function ensureCounterLoaded() {
+  await userEvent.click(screen.getByText("Counter example (lazy)"))
+
+  await waitFor(() => expect(screen.queryByTestId("count")).toBeInTheDocument())
+}
+
+test("App should have correct initial render", async () => {
+  renderWithProviders(<App />)
+
+  // The app should be rendered correctly
+  expect(screen.getByText(/learn/i)).toBeInTheDocument()
+
+  await ensureCounterLoaded()
+
+  // Initial state: count should be 0, incrementValue should be 2
+  expect(screen.getByTestId("count")).toHaveTextContent("0")
+  expect(screen.getByLabelText("Set increment amount")).toHaveValue(2)
+})
+
+test("Increment value and Decrement value should work as expected", async () => {
+  const { user } = renderWithProviders(<App />)
+
+  await ensureCounterLoaded()
+
+  // Click on "+" => Count should be 1
+  await user.click(screen.getByLabelText("Increment value"))
+  expect(screen.getByTestId("count")).toHaveTextContent("1")
+
+  // Click on "-" => Count should be 0
+  await user.click(screen.getByLabelText("Decrement value"))
+  expect(screen.getByTestId("count")).toHaveTextContent("0")
+})
+
+test("Add Amount should work as expected", async () => {
+  const { user } = renderWithProviders(<App />)
+
+  await ensureCounterLoaded()
+
+  // "Add Amount" button is clicked => Count should be 2
+  await user.click(screen.getByText("Add Amount"))
+  expect(screen.getByTestId("count")).toHaveTextContent("2")
+
+  const incrementValueInput = screen.getByLabelText("Set increment amount")
+  // incrementValue is 2, click on "Add Amount" => Count should be 4
+  await user.clear(incrementValueInput)
+  await user.type(incrementValueInput, "2")
+  await user.click(screen.getByText("Add Amount"))
+  expect(screen.getByTestId("count")).toHaveTextContent("4")
+
+  // [Negative number] incrementValue is -1, click on "Add Amount" => Count should be 3
+  await user.clear(incrementValueInput)
+  await user.type(incrementValueInput, "-1")
+  await user.click(screen.getByText("Add Amount"))
+  expect(screen.getByTestId("count")).toHaveTextContent("3")
+})
+
+it("Add Async should work as expected", async () => {
+  const { user } = renderWithProviders(<App />)
+
+  await ensureCounterLoaded()
+
+  // "Add Async" button is clicked => Count should be 2
+  await user.click(screen.getByText("Add Async"))
+
+  await waitFor(() =>
+    expect(screen.getByTestId("count")).toHaveTextContent("2"),
+  )
+
+  const incrementValueInput = screen.getByLabelText("Set increment amount")
+  // incrementValue is 2, click on "Add Async" => Count should be 4
+  await user.clear(incrementValueInput)
+  await user.type(incrementValueInput, "2")
+
+  await user.click(screen.getByText("Add Async"))
+  await waitFor(() =>
+    expect(screen.getByTestId("count")).toHaveTextContent("4"),
+  )
+
+  // [Negative number] incrementValue is -1, click on "Add Async" => Count should be 3
+  await user.clear(incrementValueInput)
+  await user.type(incrementValueInput, "-1")
+  await user.click(screen.getByText("Add Async"))
+  await waitFor(() =>
+    expect(screen.getByTestId("count")).toHaveTextContent("3"),
+  )
+})
+
+test("Add If Odd should work as expected", async () => {
+  const { user } = renderWithProviders(<App />)
+
+  await ensureCounterLoaded()
+
+  // "Add If Odd" button is clicked => Count should stay 0
+  await user.click(screen.getByText("Add If Odd"))
+  expect(screen.getByTestId("count")).toHaveTextContent("0")
+
+  // Click on "+" => Count should be updated to 1
+  await user.click(screen.getByLabelText("Increment value"))
+  expect(screen.getByTestId("count")).toHaveTextContent("1")
+
+  // "Add If Odd" button is clicked => Count should be updated to 3
+  await user.click(screen.getByText("Add If Odd"))
+  expect(screen.getByTestId("count")).toHaveTextContent("3")
+
+  const incrementValueInput = screen.getByLabelText("Set increment amount")
+  // incrementValue is 1, click on "Add If Odd" => Count should be updated to 4
+  await user.clear(incrementValueInput)
+  await user.type(incrementValueInput, "1")
+  await user.click(screen.getByText("Add If Odd"))
+  expect(screen.getByTestId("count")).toHaveTextContent("4")
+
+  // click on "Add If Odd" => Count should stay 4
+  await user.clear(incrementValueInput)
+  await user.type(incrementValueInput, "-1")
+  await user.click(screen.getByText("Add If Odd"))
+  expect(screen.getByTestId("count")).toHaveTextContent("4")
+})