Vitest MCP Server

import { describe, it, expect, beforeEach } from 'vitest'; import { DOMUtils, BrowserUtils } from './dom-utils'; /** * @vitest-environment jsdom */ describe('Failing Browser Tests - Browser Environment', () => { beforeEach(() => { document.body.innerHTML = ''; localStorage.clear(); }); describe('Intentional DOM failures', () => { it('should pass - DOM element creation', () => { const div = DOMUtils.createElement('div'); expect(div.tagName).toBe('DIV'); }); it('should fail - incorrect element type assertion', () => { const div = DOMUtils.createElement('div'); // This will fail intentionally expect(div.tagName).toBe('SPAN'); }); it('should fail - wrong attribute value', () => { const element = DOMUtils.createElement('input', { type: 'text', id: 'test-input' }); // This will fail intentionally expect(element.id).toBe('wrong-id'); }); }); describe('Intentional browser API failures', () => { it('should pass - localStorage basic operation', () => { BrowserUtils.setLocalStorage('key', 'value'); expect(BrowserUtils.getLocalStorage('key')).toBe('value'); }); it('should fail - incorrect localStorage value', () => { BrowserUtils.setLocalStorage('testKey', 'actualValue'); // This will fail intentionally expect(BrowserUtils.getLocalStorage('testKey')).toBe('wrongValue'); }); it('should fail - wrong window dimensions', () => { // Set window size BrowserUtils.triggerResize(800, 600); const size = BrowserUtils.getWindowSize(); // This will fail intentionally expect(size.width).toBe(1024); expect(size.height).toBe(768); }); }); describe('Intentional event handling failures', () => { it('should pass - button click event', () => { let clicked = false; const button = DOMUtils.createButton('Test', () => { clicked = true; }); button.click(); expect(clicked).toBe(true); }); it('should fail - event not triggered', () => { let eventTriggered = false; const button = DOMUtils.createButton('Test', () => { eventTriggered = true; }); // Don't click the button, but expect it to be triggered expect(eventTriggered).toBe(true); // This will fail }); it('should fail - wrong event count', () => { let clickCount = 0; const button = DOMUtils.createButton('Multi Click', () => { clickCount++; }); button.click(); button.click(); // Expect wrong count - this will fail expect(clickCount).toBe(5); }); }); describe('Async browser test failures', () => { it('should pass - async DOM operation', async () => { const promise = new Promise<HTMLElement>((resolve) => { setTimeout(() => { const element = DOMUtils.createElement('div', { id: 'async-element' }); resolve(element); }, 10); }); const element = await promise; expect(element.id).toBe('async-element'); }); it('should fail - async timeout expectation', async () => { const promise = new Promise<string>((resolve) => { setTimeout(() => { resolve('completed'); }, 50); }); const result = await promise; // This will fail intentionally expect(result).toBe('failed'); }); }); });