Ability to set locale

[GideonMax]

Clear and concise description of the problem

Some components in my app use locale dependent functions (like Date.toLocaleString()). While I want users to experience dates in a locale appropriate format, I don't want my snapshot tests to fail when someone on the team has a different locale, and I don't want to force a consistent locale on my devs.

Suggested solution

have a vi.mockLocales that will mock all locale dependent functions with a default locale that isn't system dependent.

Alternative

set the environment's locale either through the engine (jsdom/happy-dom) or through the operating system in a way that preserves the previous Locale

Additional context

No response

Validations

• [X] Follow our Code of Conduct
• [X] Read the Contributing Guidelines.
• [X] Read the docs.
• [X] Check that there isn't already an issue that request the same feature to avoid creating a duplicate.

[sheremet-va]

I don't think it's possible to do programatically. Date is really hard to work with in Node. But you can change locale with LC_ALL env:

LC_ALL=en_US.UTF-8 vitest

This might not work on some systems. You can also try these envs: LANG, LANGUAGE, LC_ALL, LC_MESSAGES

[GideonMax]

@sheremet-va I set the locale to the c locale and it seems to work, I'll do further tests and then close the issue if that seems to solve it

[GideonMax]

it seems to work, closing issue