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This commit is contained in:
Philippe Torrel
2026-08-14 11:12:41 +02:00
parent 1f644069b8
commit c89478bacd
30 changed files with 4397 additions and 36 deletions
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2
05_react/unterricht/tag44/01_react-api-with-hooks/src/App.jsx
View File

@@ -1,3 +1,5 @@
import ExampleUseEffectDidUpdate from './components/examples/ExampleUseEffectDidUpdate';
import ChuckNorrisJokes from './components/jokes/ChuckNorrisJokesAdvanced';
import ListTodo from './components/lists/ListTodo';
import ListUser from './components/lists/ListUser';

2
05_react/unterricht/tag44/01_react-api-with-hooks/src/components/examples/ExampleUseEffectDidUpdate.jsx
View File

@@ -13,7 +13,7 @@ const ExampleUseEffectDidUpdate = (props) => {
return () => {
// unmount
};
}, []); // <-- wenn state sich ändert, wird useEffect erneut ausgeführt (update)
}, [value]); // <-- wenn state sich ändert, wird useEffect erneut ausgeführt (update)
// EventHandlers ===========
const handleClick = (e) => {

4
05_react/unterricht/tag44/01_react-api-with-hooks/src/components/examples/ExampleUseEffectUnMount.jsx
View File

@@ -22,8 +22,8 @@ const ExampleUseEffectUnMount = (props) => {
// EventHandler ======
const handleResize = (e) => {
console.log(e);
const { x, y } = document.body.getBoundingClientRect();
console.log('resize:', { x, y });
const { x, y, width, height } = document.body.getBoundingClientRect();
console.log('resize:', { x, y, width, height });
};
return (

2
05_react/unterricht/tag44/01_react-api-with-hooks/src/components/lists/ListUser.jsx
View File

@@ -21,6 +21,8 @@ const ListUser = (props) => {
setUsers(data?.users);
})
.catch((err) => {
//
// if (err.name === 'AbortError') {}
if (axios.isCancel(err)) {
console.error('Request abgebrochen:', err.message);
} else {

108
05_react/unterricht/tag44/02_react-app-with-tests/package-lock.json generated
View File

@@ -8,6 +8,7 @@
"name": "02_react-app-with-tests",
"version": "0.0.0",
"dependencies": {
"axios": "^1.19.0",
"bootstrap": "^5.3.8",
"react": "^19.2.8",
"react-dom": "^19.2.8",
@@ -20,7 +21,7 @@
"@types/react": "^19.2.18",
"@types/react-dom": "^19.2.4",
"@vitejs/plugin-react": "^6.0.5",
"axios": "^1.19.0",
"@vitest/ui": "^4.1.10",
"jsdom": "^30.0.1",
"oxlint": "^1.78.0",
"sass-embedded": "^1.102.0",
@@ -953,6 +954,13 @@
"url": "https://opencollective.com/parcel"
}
},
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"version": "1.0.0-next.29",
"resolved": "https://registry.npmjs.org/@polka/url/-/url-1.0.0-next.29.tgz",
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"dev": true,
"license": "MIT"
},
"node_modules/@popperjs/core": {
"version": "2.11.8",
"resolved": "https://registry.npmjs.org/@popperjs/core/-/core-2.11.8.tgz",
@@ -1510,6 +1518,28 @@
"url": "https://opencollective.com/vitest"
}
},
"node_modules/@vitest/ui": {
"version": "4.1.10",
"resolved": "https://registry.npmjs.org/@vitest/ui/-/ui-4.1.10.tgz",
"integrity": "sha512-EOUqfXHTXtpSHsyLHH40ts3Ue+hRhSGwzwzMlK0dTEOLSDYyOXLyr5JDGmHQWhN2DYI30gw6dVx3cdgM9FZl+Q==",
"dev": true,
"license": "MIT",
"dependencies": {
"@vitest/utils": "4.1.10",
"fflate": "^0.8.2",
"flatted": "^3.4.2",
"pathe": "^2.0.3",
"sirv": "^3.0.2",
"tinyglobby": "^0.2.15",
"tinyrainbow": "^3.1.0"
},
"funding": {
"url": "https://opencollective.com/vitest"
},
"peerDependencies": {
"vitest": "4.1.10"
}
},
"node_modules/@vitest/utils": {
"version": "4.1.10",
"resolved": "https://registry.npmjs.org/@vitest/utils/-/utils-4.1.10.tgz",
@@ -1529,7 +1559,6 @@
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"resolved": "https://registry.npmjs.org/agent-base/-/agent-base-6.0.2.tgz",
"integrity": "sha512-RZNwNclF7+MS/8bDg70amg32dyeZGZxiDuQmZxKLAlQjr3jGyLx+4Kkk58UO7D2QdgFIQCovuSuZESne6RG6XQ==",
"dev": true,
"license": "MIT",
"dependencies": {
"debug": "4"
@@ -1587,14 +1616,12 @@
"version": "0.4.0",
"resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
"integrity": "sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q==",
"dev": true,
"license": "MIT"
},
"node_modules/axios": {
"version": "1.19.0",
"resolved": "https://registry.npmjs.org/axios/-/axios-1.19.0.tgz",
"integrity": "sha512-ht/iuYZXEjFxLH/Hkezgd7m6JKlHHXEUSneaDz8uZe1Gj5QZtCnpyDsckvAiEnT89OEbCLmnte4R4sn7P0EKFw==",
"dev": true,
"license": "MIT",
"dependencies": {
"follow-redirects": "^1.16.0",
@@ -1636,7 +1663,6 @@
"version": "1.0.2",
"resolved": "https://registry.npmjs.org/call-bind-apply-helpers/-/call-bind-apply-helpers-1.0.2.tgz",
"integrity": "sha512-Sp1ablJ0ivDkSzjcaJdxEunN5/XvksFJ2sMBFfq6x0ryhQV/2b/KwFe21cMpmHtPOSij8K99/wSfoEuTObmuMQ==",
"dev": true,
"license": "MIT",
"dependencies": {
"es-errors": "^1.3.0",
@@ -1688,7 +1714,6 @@
"version": "1.0.8",
"resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.8.tgz",
"integrity": "sha512-FQN4MRfuJeHf7cBbBMJFXhKSDq+2kAArBlmRBvcvFE5BB1HZKXtSFASDhdlz9zOYwxh8lDdnvmMOe/+5cdoEdg==",
"dev": true,
"license": "MIT",
"dependencies": {
"delayed-stream": "~1.0.0"
@@ -1765,7 +1790,6 @@
"version": "4.4.3",
"resolved": "https://registry.npmjs.org/debug/-/debug-4.4.3.tgz",
"integrity": "sha512-RGwwWnwQvkVfavKVt22FGLw+xYSdzARwm0ru6DhTVA3umU5hZc28V3kO4stgYryrTlLpuvgI9GiijltAjNbcqA==",
"dev": true,
"license": "MIT",
"dependencies": {
"ms": "^2.1.3"
@@ -1790,7 +1814,6 @@
"version": "1.0.0",
"resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
"integrity": "sha512-ZySD7Nf91aLB0RxL4KGrKHBXl7Eds1DAmEdcoVawXnLD7SDhpNgtuII2aAkg7a7QS41jxPSZ17p4VdGnMHk3MQ==",
"dev": true,
"license": "MIT",
"engines": {
"node": ">=0.4.0"
@@ -1828,7 +1851,6 @@
"version": "1.0.1",
"resolved": "https://registry.npmjs.org/dunder-proto/-/dunder-proto-1.0.1.tgz",
"integrity": "sha512-KIN/nDJBQRcXw0MLVhZE9iQHmG68qAVIBg9CqmUYjmQIhgij9U5MFvrqkUL5FbtyyzZuOeOt0zdeRe4UY7ct+A==",
"dev": true,
"license": "MIT",
"dependencies": {
"call-bind-apply-helpers": "^1.0.1",
@@ -1856,7 +1878,6 @@
"version": "1.0.1",
"resolved": "https://registry.npmjs.org/es-define-property/-/es-define-property-1.0.1.tgz",
"integrity": "sha512-e3nRfgfUZ4rNGL232gUgX06QNyyez04KdjFrF+LTRoOXmrOgFKDg4BCdsjW8EnT69eqdYGmRpJwiPVYNrCaW3g==",
"dev": true,
"license": "MIT",
"engines": {
"node": ">= 0.4"
@@ -1866,7 +1887,6 @@
"version": "1.3.0",
"resolved": "https://registry.npmjs.org/es-errors/-/es-errors-1.3.0.tgz",
"integrity": "sha512-Zf5H2Kxt2xjTvbJvP2ZWLEICxA6j+hAmMzIlypy4xcBg1vKVnx89Wy0GbS+kf5cwCVFFzdCFh2XSCFNULS6csw==",
"dev": true,
"license": "MIT",
"engines": {
"node": ">= 0.4"
@@ -1883,7 +1903,6 @@
"version": "1.1.2",
"resolved": "https://registry.npmjs.org/es-object-atoms/-/es-object-atoms-1.1.2.tgz",
"integrity": "sha512-HWcBoN6NileqtSydK2FqHbS/LoDd2pqrnQHLyJzBj4kOp/ky2MWMN694xOfkK8/SnUsW2DH7EfyVlydKCsm1Zw==",
"dev": true,
"license": "MIT",
"dependencies": {
"es-errors": "^1.3.0"
@@ -1896,7 +1915,6 @@
"version": "2.1.0",
"resolved": "https://registry.npmjs.org/es-set-tostringtag/-/es-set-tostringtag-2.1.0.tgz",
"integrity": "sha512-j6vWzfrGVfyXxge+O0x5sh6cvxAog0a/4Rdd2K36zCMV5eJ+/+tOAngRO8cODMNWbVRdVlmGZQL2YS3yR8bIUA==",
"dev": true,
"license": "MIT",
"dependencies": {
"es-errors": "^1.3.0",
@@ -1946,11 +1964,24 @@
}
}
},
"node_modules/fflate": {
"version": "0.8.3",
"resolved": "https://registry.npmjs.org/fflate/-/fflate-0.8.3.tgz",
"integrity": "sha512-tbZNuJrLwGUp3zshBtdy4W+ORxZuIh8a5ilyIEQDC5rY1f3U20JMry0Ll3WBzU58EZKsEuJFXhb5gwv8CsPvgA==",
"dev": true,
"license": "MIT"
},
"node_modules/flatted": {
"version": "3.4.4",
"resolved": "https://registry.npmjs.org/flatted/-/flatted-3.4.4.tgz",
"integrity": "sha512-5+ybhBZANEJxaH3X5evAFatUxLfEHSr7n6kYJ+1Qd0mUqr4eu9gIf6GDbWHf8RJijHrjjO8G+la14SlL2SeS1Q==",
"dev": true,
"license": "ISC"
},
"node_modules/follow-redirects": {
"version": "1.16.0",
"resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.16.0.tgz",
"integrity": "sha512-y5rN/uOsadFT/JfYwhxRS5R7Qce+g3zG97+JrtFZlC9klX/W5hD7iiLzScI4nZqUS7DNUdhPgw4xI8W2LuXlUw==",
"dev": true,
"funding": [
{
"type": "individual",
@@ -1971,7 +2002,6 @@
"version": "4.0.6",
"resolved": "https://registry.npmjs.org/form-data/-/form-data-4.0.6.tgz",
"integrity": "sha512-vKatAh4SlVfgbv+YtmhiRjhEMJsYpsG1Y2rMQtR+SVSbytsSD1YGzDIcrAJmdFec88u/+VoGmxnl+80gL1tRCQ==",
"dev": true,
"license": "MIT",
"dependencies": {
"asynckit": "^0.4.0",
@@ -2003,7 +2033,6 @@
"version": "1.1.2",
"resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.2.tgz",
"integrity": "sha512-7XHNxH7qX9xG5mIwxkhumTox/MIRNcOgDrxWsMt2pAr23WHp6MrRlN7FBSFpCpr+oVO0F744iUgR82nJMfG2SA==",
"dev": true,
"license": "MIT",
"funding": {
"url": "https://github.com/sponsors/ljharb"
@@ -2013,7 +2042,6 @@
"version": "1.3.0",
"resolved": "https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.3.0.tgz",
"integrity": "sha512-9fSjSaos/fRIVIp+xSJlE6lfwhES7LNtKaCBIamHsjr2na1BiABJPo0mOjjz8GJDURarmCPGqaiVg5mfjb98CQ==",
"dev": true,
"license": "MIT",
"dependencies": {
"call-bind-apply-helpers": "^1.0.2",
@@ -2038,7 +2066,6 @@
"version": "1.0.1",
"resolved": "https://registry.npmjs.org/get-proto/-/get-proto-1.0.1.tgz",
"integrity": "sha512-sTSfBjoXBp89JvIKIefqw7U2CCebsc74kiY6awiGogKtoSGbgjYE/G/+l9sF3MWFPNc9IcoOC4ODfKHfxFmp0g==",
"dev": true,
"license": "MIT",
"dependencies": {
"dunder-proto": "^1.0.1",
@@ -2052,7 +2079,6 @@
"version": "1.2.0",
"resolved": "https://registry.npmjs.org/gopd/-/gopd-1.2.0.tgz",
"integrity": "sha512-ZUKRh6/kUFoAiTAtTYPZJ3hw9wNxx+BIBOijnlG9PnrJsCcSjs1wyyD6vJpaYtgnzDrKYRSqf3OO6Rfa93xsRg==",
"dev": true,
"license": "MIT",
"engines": {
"node": ">= 0.4"
@@ -2075,7 +2101,6 @@
"version": "1.1.0",
"resolved": "https://registry.npmjs.org/has-symbols/-/has-symbols-1.1.0.tgz",
"integrity": "sha512-1cDNdwJ2Jaohmb3sg4OmKaMBwuC48sYni5HUw2DvsC8LjGTLK9h+eb1X6RyuOHe4hT0ULCW68iomhjUoKUqlPQ==",
"dev": true,
"license": "MIT",
"engines": {
"node": ">= 0.4"
@@ -2088,7 +2113,6 @@
"version": "1.0.2",
"resolved": "https://registry.npmjs.org/has-tostringtag/-/has-tostringtag-1.0.2.tgz",
"integrity": "sha512-NqADB8VjPFLM2V0VvHUewwwsw0ZWBaIdgo+ieHtK3hasLz4qeCRjYcqfB6AQrBggRKppKF8L52/VqdVsO47Dlw==",
"dev": true,
"license": "MIT",
"dependencies": {
"has-symbols": "^1.0.3"
@@ -2104,7 +2128,6 @@
"version": "2.0.4",
"resolved": "https://registry.npmjs.org/hasown/-/hasown-2.0.4.tgz",
"integrity": "sha512-T2UbfbBEF32wiepXIsMlTW9+dDYC6wMh/t/vYA4tuOMKqWz/n3vr1NFSxQiyP+zk2mXsoMA/i/7qV6LKut1t1A==",
"dev": true,
"license": "MIT",
"dependencies": {
"function-bind": "^1.1.2"
@@ -2130,7 +2153,6 @@
"version": "5.0.1",
"resolved": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-5.0.1.tgz",
"integrity": "sha512-dFcAjpTQFgoLMzC2VwU+C/CbS7uRL0lWmxDITmqm7C+7F0Odmj6s9l6alZc6AELXhrnggM2CeWSXHGOdX2YtwA==",
"dev": true,
"license": "MIT",
"dependencies": {
"agent-base": "6",
@@ -2546,7 +2568,6 @@
"version": "1.1.0",
"resolved": "https://registry.npmjs.org/math-intrinsics/-/math-intrinsics-1.1.0.tgz",
"integrity": "sha512-/IXtbwEk5HTPyEwyKX6hGkYXxM9nbj64B+ilVJnC/R6B0pH5G4V3b0pVbL7DBj4tkhBAppbQUlf6F6Xl9LHu1g==",
"dev": true,
"license": "MIT",
"engines": {
"node": ">= 0.4"
@@ -2563,7 +2584,6 @@
"version": "1.52.0",
"resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.52.0.tgz",
"integrity": "sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg==",
"dev": true,
"license": "MIT",
"engines": {
"node": ">= 0.6"
@@ -2573,7 +2593,6 @@
"version": "2.1.35",
"resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.35.tgz",
"integrity": "sha512-ZDY+bPm5zTTF+YpCrAU9nK0UgICYPT0QtT1NZWFv4s++TNkcgVaT0g6+4R2uI4MjQjzysHB1zxuWL50hzaeXiw==",
"dev": true,
"license": "MIT",
"dependencies": {
"mime-db": "1.52.0"
@@ -2592,11 +2611,20 @@
"node": ">=4"
}
},
"node_modules/mrmime": {
"version": "2.0.1",
"resolved": "https://registry.npmjs.org/mrmime/-/mrmime-2.0.1.tgz",
"integrity": "sha512-Y3wQdFg2Va6etvQ5I82yUhGdsKrcYox6p7FfL1LbK2J4V01F9TGlepTIhnK24t7koZibmg82KGglhA1XK5IsLQ==",
"dev": true,
"license": "MIT",
"engines": {
"node": ">=10"
}
},
"node_modules/ms": {
"version": "2.1.3",
"resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
"integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==",
"dev": true,
"license": "MIT"
},
"node_modules/nanoid": {
@@ -2778,7 +2806,6 @@
"version": "2.1.0",
"resolved": "https://registry.npmjs.org/proxy-from-env/-/proxy-from-env-2.1.0.tgz",
"integrity": "sha512-cJ+oHTW1VAEa8cJslgmUZrc+sjRKgAKl3Zyse6+PV38hZe/V6Z14TbCuXcan9F9ghlz4QrFr2c92TNF82UkYHA==",
"dev": true,
"license": "MIT",
"engines": {
"node": ">=10"
@@ -3318,6 +3345,21 @@
"dev": true,
"license": "ISC"
},
"node_modules/sirv": {
"version": "3.0.2",
"resolved": "https://registry.npmjs.org/sirv/-/sirv-3.0.2.tgz",
"integrity": "sha512-2wcC/oGxHis/BoHkkPwldgiPSYcpZK3JU28WoMVv55yHJgcZ8rlXvuG9iZggz+sU1d4bRgIGASwyWqjxu3FM0g==",
"dev": true,
"license": "MIT",
"dependencies": {
"@polka/url": "^1.0.0-next.24",
"mrmime": "^2.0.0",
"totalist": "^3.0.0"
},
"engines": {
"node": ">=18"
}
},
"node_modules/source-map-js": {
"version": "1.2.1",
"resolved": "https://registry.npmjs.org/source-map-js/-/source-map-js-1.2.1.tgz",
@@ -3465,6 +3507,16 @@
"dev": true,
"license": "MIT"
},
"node_modules/totalist": {
"version": "3.0.1",
"resolved": "https://registry.npmjs.org/totalist/-/totalist-3.0.1.tgz",
"integrity": "sha512-sf4i37nQ2LBx4m3wB74y+ubopq6W/dIzXg0FDGjsYnZHVa1Da8FH853wlL2gtUhg+xJXjfk3kUZS3BRoQeoQBQ==",
"dev": true,
"license": "MIT",
"engines": {
"node": ">=6"
}
},
"node_modules/tough-cookie": {
"version": "6.0.2",
"resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-6.0.2.tgz",

4
05_react/unterricht/tag44/02_react-app-with-tests/package.json
View File

@@ -8,10 +8,12 @@
"build": "vite build",
"lint": "oxlint",
"preview": "vite preview",
"test:ui": "npx vitest --ui",
"test": "vitest",
"test:watch": "vitest --watch"
},
"dependencies": {
"axios": "^1.19.0",
"bootstrap": "^5.3.8",
"react": "^19.2.8",
"react-dom": "^19.2.8",
@@ -24,7 +26,7 @@
"@types/react": "^19.2.18",
"@types/react-dom": "^19.2.4",
"@vitejs/plugin-react": "^6.0.5",
"axios": "^1.19.0",
"@vitest/ui": "^4.1.10",
"jsdom": "^30.0.1",
"oxlint": "^1.78.0",
"sass-embedded": "^1.102.0",

2
05_react/unterricht/tag44/02_react-app-with-tests/src/components/examples/__test__/ExampleComponent.test.jsx
View File

@@ -2,7 +2,7 @@ import { render, screen } from '@testing-library/react';
import ExampleComponent from '../ExampleComponent';
// import nicht notwendig ( Findet automatisch durch globale Setting statt)
import { test, expect } from 'vitest';
// import { test, expect } from 'vitest';
// Test Case
test('Components renders correctly and contains text "Hello World"', () => {

18
05_react/unterricht/tag44/02_react-app-with-tests/src/test/Button.test.jsx
View File

@@ -1,7 +1,19 @@
import { test, expect } from 'vitest';
import { render, screen, fireEvent } from '@testing-library/react';
import Button from '../components/buttons/Button';
import userEvent from '@testing-library/user-event';
test('Button is clickable and changes text on click to "clicked"');
import { expect, test } from 'vitest'; // Muss nicht eingebunden werden. Einbindung findet automatisch statt, allerdings haben wir dann keine Autocomplete Funktion
// Test Case
test('Button is clickable and changes text on click to "Clicked"', async () => {
render(<Button />);
const user = userEvent.setup();
const button = screen.getByRole('button');
// fireEvent.click(button);
await user.click(button);
expect(button).toHaveTextContent(/Clicked/i);
});

24
05_react/unterricht/tag45/01_react-app-with-tests/.gitignore vendored Normal file
View File

@@ -0,0 +1,24 @@
# 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?

8
05_react/unterricht/tag45/01_react-app-with-tests/.oxlintrc.json Normal file
View File

@@ -0,0 +1,8 @@
{
"$schema": "./node_modules/oxlint/configuration_schema.json",
"plugins": ["react", "oxc"],
"rules": {
"react/rules-of-hooks": "error",
"react/only-export-components": ["warn", { "allowConstantExport": true }]
}
}

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# React + Vite
This template provides a minimal setup to get React working in Vite with HMR and some Oxlint rules.
Currently, two official plugins are available:
- [@vitejs/plugin-react](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react) uses [Oxc](https://oxc.rs)
- [@vitejs/plugin-react-swc](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react-swc) uses [SWC](https://swc.rs/)
## React Compiler
The React Compiler is not enabled on this template because of its impact on dev & build performances. To add it, see [this documentation](https://react.dev/learn/react-compiler/installation).
## Expanding the Oxlint configuration
If you are developing a production application, we recommend using TypeScript with type-aware lint rules enabled. Check out the [TS template](https://github.com/vitejs/vite/tree/main/packages/create-vite/template-react-ts) for information on how to integrate TypeScript and Oxlint's TypeScript related rules in your project.

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<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<link rel="icon" type="image/svg+xml" href="/favicon.svg" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>01_react-app-with-tests</title>
</head>
<body>
<div id="root"></div>
<script type="module" src="/src/main.jsx"></script>
</body>
</html>

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{
"name": "01_react-app-with-tests",
"private": true,
"version": "0.0.0",
"type": "module",
"scripts": {
"dev": "vite",
"build": "vite build",
"lint": "oxlint",
"preview": "vite preview",
"test:ui": "npx vitest --ui",
"test": "vitest",
"test:watch": "vitest --watch"
},
"dependencies": {
"axios": "^1.19.0",
"bootstrap": "^5.3.8",
"react": "^19.2.8",
"react-dom": "^19.2.8",
"react-icons": "^5.7.0",
"validator": "^13.15.35"
},
"devDependencies": {
"@testing-library/jest-dom": "^7.0.1",
"@testing-library/react": "^16.3.2",
"@testing-library/user-event": "^14.6.4",
"@types/react": "^19.2.18",
"@types/react-dom": "^19.2.4",
"@vitejs/plugin-react": "^6.0.5",
"@vitest/ui": "^4.1.10",
"jsdom": "^30.0.1",
"oxlint": "^1.78.0",
"sass-embedded": "^1.102.0",
"vite": "^8.2.1",
"vitest": "^4.1.10"
}
}

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<svg xmlns="http://www.w3.org/2000/svg">
<symbol id="bluesky-icon" viewBox="0 0 16 17">
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</symbol>
<symbol id="discord-icon" viewBox="0 0 20 19">
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<symbol id="social-icon" viewBox="0 0 20 20">
<path fill="none" stroke="#aa3bff" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.35" d="M12.5 6.667a4.167 4.167 0 1 0-8.334 0 4.167 4.167 0 0 0 8.334 0"/>
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import Button from './components/buttons/Button';
import ExampleComponent from './components/examples/ExampleComponent';
import FormContact from './components/forms/FormContact';
function App(props) {
// const { } = props;
return (
<>
<div className="container py-5">
<ExampleComponent />
<hr />
<Button />
<hr />
<FormContact />
</div>
</>
);
}
export default App;

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const Button = (props) => {
// const { } = props;
const handleClick = (e) => {
const btn = e.currentTarget;
btn.textContent = 'Clicked';
};
return (
<button className="btn btn-dark button-click" onClick={handleClick}>
Click Me!
</button>
);
};
export default Button;

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const ExampleComponent = (props) => {
// const { } = props;
return (
<>
<p>Hello World!</p>
</>
);
};
export default ExampleComponent;

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05_react/unterricht/tag45/01_react-app-with-tests/src/components/examples/__test__/ExampleComponent.test.jsx Normal file
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import { render, screen } from '@testing-library/react';
import ExampleComponent from '../ExampleComponent';
// import nicht notwendig ( Findet automatisch durch globale Setting statt)
// import { test, expect } from 'vitest';
// Test Case
test('Components renders correctly and contains text "Hello World"', () => {
// AAA
// Arrange, Acting, Assert
render(<ExampleComponent />);
const element = screen.getByText(/Hello World/i);
expect(element).toBeInTheDocument();
});
// console.log(document.querySelector('p').textContent.includes('Hello World')); // => true

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import { useState } from 'react';
import validate from '../../utils/validators/validate';
const FormContact = (props) => {
// const { } = props;
const [formData, setFormData] = useState({
firstname: '', //
lastname: '',
email: '',
message: '',
});
const [errors, setErrors] = useState({});
// EventHandlers =======
const handleSubmit = (e) => {
e.preventDefault(); // Standardverhalten (Versenden vom Formular) unterbinden.
const form = e.currentTarget;
const errors = validate(formData);
if (Object.keys(errors).length === 0) {
console.log('Form submitted ....');
// TODO: send over AJAX/Fetch
form.reset();
setFormData({
firstname: '', //
lastname: '',
email: '',
message: '',
});
setErrors({});
} else {
console.warn('Form submit error');
setErrors(errors);
}
};
const handleBlur = (e) => {
const { name } = e.target;
const error = validate(formData);
if (error[name]) {
setErrors({ ...errors, [name]: error[name] });
} else {
setErrors({ ...errors, [name]: '' });
}
};
const handleChange = (e) => {
const { name, value } = e.target;
setFormData((state) => ({ ...state, [name]: value }));
// console.log({ [e.target.name]: e.target.value });
// console.log('Formdata', formData);
};
return (
<form className="m-form-contact form-contact" noValidate onSubmit={handleSubmit}>
<div className="row">
<div className="col-12 col-md">
<div className="mb-3">
<label htmlFor="input-firstname" className="form-label">
Firstname
</label>
<input
type="text"
name="firstname"
id="input-firstname"
className={`form-control input-firstname ${errors.firstname ? 'is-invalid' : ''}`}
value={formData.firstname}
onChange={handleChange}
onBlur={handleBlur}
/>
<div className="valid-feedback">OK</div>
<div className="invalid-feedback">{errors?.firstname || 'Error'}</div>
</div>
</div>
<div className="col-12 col-md">
<div className="mb-3">
<label htmlFor="input-lastname" className="form-label">
Lastname
</label>
<input
type="text"
name="lastname"
id="input-lastname"
className={`form-control input-lastname ${errors.lastname ? 'is-invalid' : ''}`}
value={formData.lastname}
onChange={handleChange}
onBlur={handleBlur}
/>
<div className="valid-feedback">OK</div>
<div className="invalid-feedback">{errors?.lastname}</div>
</div>
</div>
</div>
<div className="row">
<div className="col">
<div className="mb-3">
<label htmlFor="input-email" className="form-label">
E-Mail
</label>
<input
type="email"
name="email"
id="input-email"
className={`form-control input-email ${errors.email ? 'is-invalid' : ''}`}
value={formData.email}
onChange={handleChange}
onBlur={handleBlur}
/>
<div className="valid-feedback">OK</div>
<div className="invalid-feedback">{errors?.email}</div>
</div>
</div>
</div>
<div className="row">
<div className="col">
<div className="mb-3">
<label htmlFor="textarea-message" className="form-label">
Message
</label>
<textarea
name="message"
cols={4}
rows={6}
id="textarea-message"
className={`form-control textarea-message ${errors.message ? 'is-invalid' : ''}`}
value={formData.message}
onChange={handleChange}
onBlur={handleBlur}></textarea>
<div className="valid-feedback">OK</div>
<div className="invalid-feedback">{errors?.message}</div>
</div>
</div>
</div>
<div className="row">
<div className="col">
<div className="mb-3">
<button type="submit" className="btn btn-dark button-form-send">
Send Message
</button>
</div>
</div>
</div>
</form>
);
};
export default FormContact;

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import { StrictMode } from 'react';
import { createRoot } from 'react-dom/client';
import 'bootstrap'; // import von JS
import 'bootstrap/dist/css/bootstrap.min.css'; // CSS import
import App from './App.jsx';
createRoot(document.getElementById('root')).render(
<StrictMode>
<App />
</StrictMode>,
);

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import { render, screen, fireEvent } from '@testing-library/react';
import Button from '../components/buttons/Button';
import userEvent from '@testing-library/user-event';
import { expect, test } from 'vitest'; // Muss nicht eingebunden werden. Einbindung findet automatisch statt, allerdings haben wir dann keine Autocomplete Funktion
// Test Case
test('Button is clickable and changes text on click to "Clicked"', async () => {
render(<Button />);
const user = userEvent.setup();
const button = screen.getByRole('button');
// fireEvent.click(button);
await user.click(button);
expect(button).toHaveTextContent(/Clicked/i);
});

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import { render, screen } from '@testing-library/react';
import ExampleComponent from '../components/examples/ExampleComponent';
// import nicht notwendig ( Findet automatisch durch globale Setting statt)
import { test, expect } from 'vitest';
// Test Case
test('Components renders correctly and contains text "Hello World"', () => {
// AAA
// Arrange, Acting, Assert
render(<ExampleComponent />);
const element = screen.getByText(/Hello World/i);
expect(element).toBeInTheDocument();
});
// console.log(document.querySelector('p').textContent.includes('Hello World')); // => true

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// src/test/setup.js
import { expect, afterEach } from 'vitest';
import { cleanup } from '@testing-library/react';
import * as matchers from '@testing-library/jest-dom/matchers';
// add jest-dom matchers to expect
expect.extend(matchers);
// Add cleanup function to run after each test
afterEach(() => {
cleanup();
});
// More setup code here, if needed

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import validator from 'validator';
const validate = (formData) => {
const errors = {};
// Firstname min 2 chars
if (validator.isEmpty(formData.firstname.trim())) {
errors.firstname = 'Vorname ist erforderlich.';
} else if (!validator.isLength(formData.firstname.trim(), { min: 2, max: 60 })) {
errors.firstname = 'Vorname muss mindestens 2 Zeichen und maximal 60 Zeichen lang sein.';
}
// Lastname
if (validator.isEmpty(formData.lastname.trim())) {
errors.lastname = 'Nachname ist erforderlich.';
} else if (!validator.isLength(formData.lastname.trim(), { min: 2, max: 60 })) {
errors.lastname = 'Nachname muss mindestens 2 Zeichen und maximal 60 Zeichen lang sein.';
}
// Email
if (validator.isEmpty(formData.email.trim())) {
errors.email = 'E-Mail ist erforderlich.';
} else if (!validator.isEmail(formData.email.trim())) {
errors.email = 'Bitte gib eine gültige E-Mail-Adresse ein.';
}
// Message
if (validator.isEmpty(formData.message.trim())) {
errors.message = 'Nachricht ist erforderlich.';
} else if (!validator.isLength(formData.message.trim(), { min: 10, max: 1000 })) {
errors.message = 'Die Nachricht muss mindestens 10 und maximal 1000 Zeichen lang sein.';
}
return errors;
};
export default validate;

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import { defineConfig } from 'vite';
import react from '@vitejs/plugin-react';
// https://vite.dev/config/
export default defineConfig({
plugins: [react()],
test: {
// Vitest configuration
globals: true, // make the global objects available in the test environment
environment: 'jsdom', // use jsdom as the test environment
setupFiles: './src/test/setup.js', // if you have a setup file
// more options here
},
});