How Do I Setup Custom Test Environment After Configuring It?

[Android789515]

The docs show how to create the boilerplate for the config but all it says afterword is a comment inside the setup method that says custom setup. I don't know what to setup in there.

For context, I'm trying to create a custom environment for Electron, so 'node' is not a suitable test environment.

Possible related: #8694

[aniruddhaadak80]

@Android789515 A custom environment usually requires extends accessing the setup.
In libs/my-env/index.ts:

export default {
  name: ''my-electron-env'',
  setup(global) {
    // Inject mocks
    global.window = { ... }; 
    return {
      teardown() { ... }
    }
  }
}

Then in vitest.config.ts:

test: {
  environment: ''./libs/my-env/index.ts''
}