Vitest MCP Server

// DOM utility functions for browser environment testing export class DOMUtils { static createElement(tag: string, attributes: Record<string, string> = {}): HTMLElement { const element = document.createElement(tag); Object.entries(attributes).forEach(([key, value]) => { element.setAttribute(key, value); }); return element; } static createButton(text: string, onClick?: () => void): HTMLButtonElement { const button = document.createElement('button'); button.textContent = text; button.className = 'test-button'; if (onClick) { button.addEventListener('click', onClick); } return button; } static createInput(type: string = 'text', placeholder?: string): HTMLInputElement { const input = document.createElement('input'); input.type = type; if (placeholder) { input.placeholder = placeholder; } return input; } static appendToBody(element: HTMLElement): void { document.body.appendChild(element); } static removeFromBody(element: HTMLElement): void { if (element.parentNode === document.body) { document.body.removeChild(element); } } static clearBody(): void { document.body.innerHTML = ''; } static queryByTestId(testId: string): HTMLElement | null { return document.querySelector(`[data-testid="${testId}"]`); } static getAllByClass(className: string): NodeListOf<Element> { return document.querySelectorAll(`.${className}`); } } // Browser API utilities export class BrowserUtils { static getWindowSize(): { width: number; height: number } { return { width: window.innerWidth, height: window.innerHeight }; } static getCurrentUrl(): string { return window.location.href; } static setLocalStorage(key: string, value: string): void { localStorage.setItem(key, value); } static getLocalStorage(key: string): string | null { return localStorage.getItem(key); } static clearLocalStorage(): void { localStorage.clear(); } static triggerResize(width: number, height: number): void { // Simulate window resize Object.defineProperty(window, 'innerWidth', { value: width, writable: true }); Object.defineProperty(window, 'innerHeight', { value: height, writable: true }); window.dispatchEvent(new Event('resize')); } } // Form utilities export class FormUtils { static createForm(fields: Array<{ name: string; type: string; required?: boolean }>): HTMLFormElement { const form = document.createElement('form'); fields.forEach(field => { const input = document.createElement('input'); input.name = field.name; input.type = field.type; if (field.required) { input.required = true; } const label = document.createElement('label'); label.textContent = field.name; label.appendChild(input); form.appendChild(label); }); return form; } static getFormData(form: HTMLFormElement): Record<string, string> { const formData = new FormData(form); const data: Record<string, string> = {}; formData.forEach((value, key) => { data[key] = value.toString(); }); return data; } static validateForm(form: HTMLFormElement): boolean { return form.checkValidity(); } } // Untested browser utility for coverage testing export class UntestedBrowserUtils { static createComplexElement(): HTMLElement { const div = document.createElement('div'); div.innerHTML = '<span>Untested complex element</span>'; return div; } }