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馃 AppGenius: AI-generated test cases (1 file) #50

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馃 AppGenius: AI-generated test cases (1 file) #50

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52 changes: 52 additions & 0 deletions script.test.js
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Original file line number Diff line number Diff line change
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import { JSDOM } from 'jsdom';
import { expect } from 'chai';
import { generateQR } from './script.js';

describe('generateQR function', () => {
let dom;

beforeEach(() => {
dom = new JSDOM `
<html>
<body>
<button id="generateButton">Generate QR Code</button>
<div id="qrcode"></div>
<input id="text" type="text">
</body>
</html>
`;
globalThis.document = dom.window.document;
globalThis.window = dom.window;
});

afterEach(() => {
delete globalThis.document;
delete globalThis.window;
});

it('should throw an error if input element is null', () => {
const inputElement = null;
expect(() => generateQR()).to.throw(TypeError, 'Cannot read properties of null');
});

it('should throw an error if input element is undefined', () => {
const inputElement = undefined;
expect(() => generateQR()).to.throw(TypeError, 'Cannot read properties of undefined');
});

it('should throw an error if input element is null when clicking the button', () => {
const inputElement = null;
document.getElementById('text').value = '';
document.getElementById('generateButton').addEventListener('click', () => generateQR());
document.getElementById('generateButton').click();
expect(console.error).to.have.been.called.with('Cannot read properties of null');
});

it('should throw an error if input element is undefined when clicking the button', () => {
const inputElement = undefined;
document.getElementById('text').value = '';
document.getElementById('generateButton').addEventListener('click', () => generateQR());
document.getElementById('generateButton').click();
expect(console.error).to.have.been.called.with('Cannot read properties of undefined');
});
});