electron-mock-factory

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Generate mocks for Electron APIs (ipcMain, ipcRenderer, dialog, etc.) for unit testing

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What this skill tells your AI

The instructions your AI receives, as published by a5c-ai/babysitter in library/specializations/desktop-development/skills/electron-mock-factory/SKILL.md and read by ahel’s review.

Generate mocks for Electron APIs to enable unit testing of main and renderer process code without running Electron.

Capabilities

Mock ipcMain/ipcRenderer
Mock dialog module
Mock BrowserWindow
Mock shell, clipboard, app
Generate Jest/Vitest mocks
Create test utilities

Input Schema

{
  "type": "object",
  "properties": {
    "projectPath": { "type": "string" },
    "testFramework": { "enum": ["jest", "vitest", "mocha"] },
    "modulesToMock": { "type": "array" }
  },
  "required": ["projectPath"]
}

Generated Mocks

// __mocks__/electron.js
module.exports = {
  app: {
    getPath: jest.fn(name => `/mock/${name}`),
    getVersion: jest.fn(() => '1.0.0'),
    quit: jest.fn(),
    on: jest.fn()
  },
  ipcMain: {
    on: jest.fn(),
    handle: jest.fn(),
    removeHandler: jest.fn()
  },
  ipcRenderer: {
    on: jest.fn(),
    send: jest.fn(),
    invoke: jest.fn()
  },
  dialog: {
    showOpenDialog: jest.fn(() => Promise.resolve({ filePaths: [] })),
    showSaveDialog: jest.fn(() => Promise.resolve({ filePath: undefined })),
    showMessageBox: jest.fn(() => Promise.resolve({ response: 0 }))
  },
  BrowserWindow: jest.fn().mockImplementation(() => ({
    loadURL: jest.fn(),
    on: jest.fn(),
    webContents: { send: jest.fn(), on: jest.fn() }
  }))
};

Usage

jest.mock('electron');
const { ipcRenderer } = require('electron');

test('sends message', () => {
  myModule.sendMessage('hello');
  expect(ipcRenderer.send).toHaveBeenCalledWith('channel', 'hello');
});

Related Skills

playwright-electron-config
desktop-unit-testing process

Signals

GitHub stars: 2k
Forks: 112
Last commit: Sep 2026

Advanced

Item type: skill
Key: electron-mock-factory
Source: github.com/a5c-ai/babysitter

github.com/a5c-ai/babysitter