main-process-unit-tests

Unit testing Electron main process code with Vitest involves co-locating tests with your modules and mocking Electron APIs to validate IPC handlers and DI-based services in isolation. This approach establishes reliable testing conventions for your application.

The best way to mock Electron APIs for main process unit tests is to use Vitest mocking patterns to isolate network calls and file system interactions. This allows you to validate DI-injected services and IPC handlers without triggering actual Electron operations.

Yes, you can test Electron IPC handlers in isolation using Vitest. By mocking Electron APIs and applying dependency injection, you can validate provider factories and IPC handlers independently of the renderer process or full Electron runtime environment.

To set up Vitest for testing DI-based components in an Electron app, create a basic test scaffold co-located with your service files, such as placing service.test.ts next to service.ts. This structure helps validate injected dependencies and main-process modules quickly.

Electron main process unit tests often fail due to unmocked Electron APIs or actual network and file system interactions. By enforcing Vitest-based mocking patterns and isolating DI-injected services, you can diagnose failures and build more reliable test suites.