[Feature] Add global setting to make getByText default to exact: true

The default behaviour in Testing Library is { exact: true }, while Playwright defaults to { exact: false }.

Naturally this is bound to catch people out. It would be useful to have at least a global setting to change the default to { exact: true }.

See also https://github.com/microsoft/playwright/discussions/18239

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Related comment/issue: https://github.com/microsoft/playwright/issues/19046#issuecomment-1327913236

[jpveooys]

I do, yes. While in most cases the regex would be simple enough, there’s still more room for something to go wrong with a regex, and you have to worry about escaping etc. If in one place /^Phone number$/ was used, and in another /^Phone number/ was used, is it intentional or a mistake? It’s hard to know.

My personal preference is to limit regexes to where they are really needed, so they can get more attention and it’s obvious there’s something a bit different there.