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馃 AppGenius: AI-generated test cases (1 file) #53

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馃 AppGenius: AI-generated test cases (1 file) #53

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44 changes: 44 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, it, describe } from 'jest';

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

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

afterEach(() => {
jest.resetModules();
});

it('should display alert when input is empty', () => {
document.getElementById('text').value = '';
document.getElementById('generateButton').click();
expect(document.getElementById('text').value).toBe('');
});

it('should throw error when input is not a string', () => {
document.getElementById('text').value = 123;
expect(() => document.getElementById('generateButton').click()).toThrowError('Input must be a string');
});

it('should display error message when generating QR code fails', () => {
const consoleError = jest.spyOn(console, 'error');
document.getElementById('text').value = 'test';
document.getElementById('qrcode').innerHTML = '<canvas>fail</canvas>';
document.getElementById('generateButton').click();
expect(consoleError).toHaveBeenCalledTimes(1);
expect(document.getElementById('qrcode').innerHTML).toBe('');
});
});