Clean up some specs to use findByTestid from extended wrappers

Justin Ho Tuan Duongrequested to merge
justin_ho-use-findByTestid-helper-in-some-specs into master

What does this MR do and why?

Clean up some specs to use findByTestid by using the shallowMountExtended and mountExtended helpers.

References

Screenshots or screen recordings

Spec changes only.

How to set up and validate locally

$ yarn run jest --watch

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