Global setup/teardown functions for all tests in watch mode

[colinlienard]

In Vitest, we have several options for running setup and teardown functions:

1. beforeAll and afterAll in setup files which run once for each test file
2. Global setup files with setup and teardown functions which run once when the process starts and stops

I'm looking for a way to run specific functions at the very beginning and end of all tests, like with a global setup, but also in watch mode, meaning:

• When a file changes or I press "r", the setup function should run again
• Tests run
• Finally, the teardown function should run

Is there an existing feature in Vitest that can achieve this behavior?
If not, would this be considered a valuable feature to add to Vitest in the future?

(I found this discussion that seems to ask the same question as me, but got no answers)

[sheremet-va]

Currently the only way to run a custom code when Vitest triggers a rerun is with a custom reporter's onWatcherRerun. We are planning to add the same hook to the global setup in the future: #6417 (comment)

[colinlienard]

Thanks, that does the trick

For anyone passing by, here is what my reporter looks like:

export default class CustomReporter implements Reporter {
	async onInit() {
		await setup();
	}
	async onWatcherRerun() {
		await setup();
	}
	async onFinished() {
		await teardown();
	}
}