projektfeladat

This commit is contained in:
Nagy László Krisztián
2026-03-02 10:58:36 +01:00
commit 117991daeb
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> Why do I have a folder named ".expo" in my project?
The ".expo" folder is created when an Expo project is started using "expo start" command.
> What do the files contain?
- "devices.json": contains information about devices that have recently opened this project. This is used to populate the "Development sessions" list in your development builds.
- "packager-info.json": contains port numbers and process PIDs that are used to serve the application to the mobile device/simulator.
- "settings.json": contains the server configuration that is used to serve the application manifest.
> Should I commit the ".expo" folder?
No, you should not share the ".expo" folder. It does not contain any information that is relevant for other developers working on the project, it is specific to your machine.
Upon project creation, the ".expo" folder is already added to your ".gitignore" file.

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{
"hostType": "lan",
"lanType": "ip",
"dev": true,
"minify": false,
"urlRandomness": null,
"https": false
}

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TodoList React - Vitest Project
Projekt típusa: React Web Application
Elkészült komponensek:
- TodoList.jsx - Funkcionális React komponens teendőlista kezeléshez
- TodoList.test.jsx - 5 átmenő Vitest teszt
Tesztek:
✓ hozzáadás működik - Új teendő hozzáadása az listához
✓ törlés működik - Teendő törlése az listából
✓ üres input nem adódik hozzá - Üres teendő nem adódik hozzá
✓ üres input csak szóközökkel nem adódik hozzá - Csak szóközöket tartalmazó teendő sem adódik hozzá
✓ Enter billentyű is működik a hozzáadáshoz - Enter billentyűvel is működik az hozzáadás

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# Logs
logs
*.log
npm-debug.log*
yarn-debug.log*
yarn-error.log*
pnpm-debug.log*
lerna-debug.log*
node_modules
dist
dist-ssr
*.local
# Editor directories and files
.vscode/*
!.vscode/extensions.json
.idea
.DS_Store
*.suo
*.ntvs*
*.njsproj
*.sln
*.sw?

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# TodoList React - Vitest Projekt
Ez egy egyszerű React TodoList komponens, amely Vitest keretrendszerrel tesztelve van.
## Funkciók
- **Új teendő hozzáadása**: Az input mezőbe írhat és az "Hozzáadás" gombra kattintva vagy Enter billentyűt nyomva adhat hozzá új teendőt
- **Teendő törlése**: Minden teendő mellett van egy "Törlés" gomb a teendő eltávolításához
- **Üres input kezelése**: Az alkalmazás nem engedélyez üres vagy csak szóközöket tartalmazó teendőket
## Projekt Struktúra
```
src/
├── components/
│ ├── TodoList.jsx # TodoList komponens
│ └── TodoList.test.jsx # TodoList tesztek
├── App.jsx # Fő alkalmazás komponens
├── setup.js # Vitest setup (jest-dom matchers)
└── ...
```
## Telepítés
```bash
npm install
```
## Elérhető Scripts
### Fejlesztési szerver indítása
```bash
npm run dev
```
Az alkalmazás [http://localhost:5173](http://localhost:5173) címen érhető el.
### Tesztek futtatása
```bash
npm test
```
### Build
```bash
npm run build
```
## Tesztek
A projekt 5 tesztet tartalmaz:
1. **hozzáadás működik** - Ellenőrzi, hogy új teendő sikeresen hozzáadódik-e az listához
2. **törlés működik** - Ellenőrzi, hogy a törlés gomb működik és eltávolítja a teendőt
3. **üres input nem adódik hozzá** - Ellenőrzi, hogy üres input nem adódik az listához
4. **üres input csak szóközökkel nem adódik hozzá** - Ellenőrzi, hogy csak szóközöket tartalmazó input nem adódik az listához
5. **Enter billentyű is működik a hozzáadáshoz** - Ellenőrzi, hogy Enter billentyűvel is lehet teendőt hozzáadni
### Tesztek futtatása
```bash
npm test
```
## Technológiák
- **React** - UI komponens keretrendszer
- **Vite** - Build és fejlesztési szerver
- **Vitest** - Teszt keretrendszer
- **@testing-library/react** - React komponens teszteléshez
- **@testing-library/jest-dom** - DOM matcher-ek
## Egyéb Parancsok
### ESLint
```bash
npm run lint
```
### Preview (build után)
```bash
npm run preview
```

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import js from '@eslint/js'
import globals from 'globals'
import reactHooks from 'eslint-plugin-react-hooks'
import reactRefresh from 'eslint-plugin-react-refresh'
import { defineConfig, globalIgnores } from 'eslint/config'
export default defineConfig([
globalIgnores(['dist']),
{
files: ['**/*.{js,jsx}'],
extends: [
js.configs.recommended,
reactHooks.configs.flat.recommended,
reactRefresh.configs.vite,
],
languageOptions: {
ecmaVersion: 2020,
globals: globals.browser,
parserOptions: {
ecmaVersion: 'latest',
ecmaFeatures: { jsx: true },
sourceType: 'module',
},
},
rules: {
'no-unused-vars': ['error', { varsIgnorePattern: '^[A-Z_]' }],
},
},
])

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<!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>frontendprojekt-vitest</title>
</head>
<body>
<div id="root"></div>
<script type="module" src="/src/main.jsx"></script>
</body>
</html>

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{
"name": "frontendprojekt-vitest",
"private": true,
"version": "0.0.0",
"type": "module",
"scripts": {
"dev": "vite",
"build": "vite build",
"lint": "eslint .",
"preview": "vite preview",
"test": "vitest"
},
"dependencies": {
"react": "^19.2.0",
"react-dom": "^19.2.0"
},
"devDependencies": {
"@eslint/js": "^9.39.1",
"@testing-library/dom": "^10.4.1",
"@testing-library/jest-dom": "^6.9.1",
"@testing-library/react": "^16.3.2",
"@types/react": "^19.2.7",
"@types/react-dom": "^19.2.3",
"@vitejs/plugin-react": "^5.1.1",
"@vitest/ui": "^4.0.18",
"eslint": "^9.39.1",
"eslint-plugin-react-hooks": "^7.0.1",
"eslint-plugin-react-refresh": "^0.4.24",
"globals": "^16.5.0",
"jsdom": "^28.1.0",
"vite": "^7.3.1",
"vitest": "^4.0.18"
}
}

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#root {
max-width: 1280px;
margin: 0 auto;
padding: 2rem;
text-align: center;
}
@media (prefers-reduced-motion: no-preference) {
a:nth-of-type(2) .logo {
animation: logo-spin infinite 20s linear;
}
}
.card {
padding: 2em;
}
.read-the-docs {
color: #888;
}

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src/App.jsx Normal file
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import { TodoList } from "./components/TodoList";
import "./App.css";
function App() {
return (
<>
<TodoList />
</>
);
}
export default App;

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import { useState } from "react";
export function TodoList() {
const [todos, setTodos] = useState([]);
const [input, setInput] = useState("");
const addTodo = () => {
if (input.trim() === "") {
return;
}
setTodos([...todos, { id: Date.now(), text: input }]);
setInput("");
};
const deleteTodo = (id) => {
setTodos(todos.filter((todo) => todo.id !== id));
};
const handleKeyPress = (e) => {
if (e.key === "Enter") {
addTodo();
}
};
return (
<div>
<h1>Teendőlista</h1>
<div>
<input
type="text"
value={input}
onChange={(e) => setInput(e.target.value)}
onKeyPress={handleKeyPress}
placeholder= "Új teendő"
/>
<button onClick={addTodo}>Hozzáadás</button>
</div>
<ul>
{todos.map((todo) => (
<li key={todo.id}>
{todo.text}
<button onClick={() => deleteTodo(todo.id)}>Törlés</button>
</li>
)) }
</ul>
</div>
);
}

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import { describe, expect, it, vi } from "vitest";
import { TodoList } from "./TodoList";
import { fireEvent, render, screen } from "@testing-library/react";
describe("Teendőlista teszt", () => {
it("hozzáadás tesztelése", () => {
render(<TodoList />);
const input = screen.getByPlaceholderText("Új teendő");
const button = screen.getByRole("button", { name: /Hozzáadás/i });
fireEvent.change(input, { target: { value: "Teszt feladat" } });
fireEvent.click(button);
expect(screen.getByText("Teszt feladat")).toBeInTheDocument();
});
it("törlés tesztelése", () => {
render(<TodoList />);
const input = screen.getByPlaceholderText("Új teendő");
const button = screen.getByRole("button", { name: /Hozzáadás/i });
fireEvent.change(input, { target: { value: "Törlendő feladat" } });
fireEvent.click(button);
const torles = screen.getByRole("button", { name: /Törlés/i });
fireEvent.click(torles);
expect(screen.queryByText("Törlendő feladat")).not.toBeInTheDocument();
});
it("üres input nem adódik hozzá", () => {
render(<TodoList />);
const button = screen.getByRole("button", { name: /Hozzáadás/i });
fireEvent.click(button);
const ul = document.querySelector("ul");
expect(ul.children.length).toBe(0);
});
});

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:root {
font-family: system-ui, Avenir, Helvetica, Arial, sans-serif;
line-height: 1.5;
font-weight: 400;
color-scheme: light dark;
color: rgba(255, 255, 255, 0.87);
background-color: #242424;
font-synthesis: none;
text-rendering: optimizeLegibility;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
}
a {
font-weight: 500;
color: #646cff;
text-decoration: inherit;
}
a:hover {
color: #535bf2;
}
body {
margin: 0;
display: flex;
place-items: center;
min-width: 320px;
min-height: 100vh;
}
h1 {
font-size: 3.2em;
line-height: 1.1;
}
button {
border-radius: 8px;
border: 1px solid transparent;
padding: 0.6em 1.2em;
font-size: 1em;
font-weight: 500;
font-family: inherit;
background-color: #1a1a1a;
cursor: pointer;
transition: border-color 0.25s;
margin-left: 20px;
}
button:hover {
border-color: #646cff;
}
button:focus,
button:focus-visible {
outline: 4px auto -webkit-focus-ring-color;
}
@media (prefers-color-scheme: light) {
:root {
color: #213547;
background-color: #ffffff;
}
a:hover {
color: #747bff;
}
button {
background-color: #f9f9f9;
}
}

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import { StrictMode } from 'react'
import { createRoot } from 'react-dom/client'
import './index.css'
import App from './App.jsx'
createRoot(document.getElementById('root')).render(
<StrictMode>
<App />
</StrictMode>,
)

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import "@testing-library/jest-dom/vitest";

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import { defineConfig } from "vite";
import react from "@vitejs/plugin-react";
// https://vite.dev/config/
export default defineConfig({
plugins: [react()],
test: {
globals: true,
environment: "jsdom",
setupFiles: ["./src/setup.js"],
},
});