Components: Refactor Tooltip tests to @testing-library/react (#43061

)

* Migrate frim enzyme to testing-library

* update text matcher

* Fix typo

* Update matcher

* Refactor fireEvent to userEvent

* Brush up test (tooltip won't be rendered)

* Refactor setTimeout to findBy in one test

* Don't use getElementsByClassName

* Don't use nodeName, childNodes

* Remove unused event handler

* Remove tootip position props

* Add test: should render children with additional popover when hovered

* Simplify mouse click test

* Standardize test cases name

* Add test to 'should render children'

* Merge two tests for focus

* Refactor 'should render children with additional tooltip when hovered' test without  and

* Rename from `handleClick` to `onClickMock`

* Remove unnecessary test 'should show tooltip on delayed mouseenter'

* Reactor: should not show tooltip on focus as result of mouse click

* Refactor: should respect custom delay prop when showing tooltip

* Refactor: should show tooltip when an element is disabled

* Refactor: should not show tooltip if the mouse leaves the anchor before the tooltip has shown

* Update changelog

packages/components/CHANGELOG.md

@@ -29,6 +29,7 @@
 
 ### Internal
 
+-   `Tooltip`: Refactor tests to `@testing-library/react` ([#43061](https://github.com/WordPress/gutenberg/pull/43061)).
 -   Update `floating-ui` to the latest version ([#43206](https://github.com/WordPress/gutenberg/pull/43206)).
 -   `DateTimePicker`, `TimePicker`, `DatePicker`: Switch from `moment` to `date-fns` ([#43005](https://github.com/WordPress/gutenberg/pull/43005)).
 -   `DatePicker`: Switch from `react-dates` to `use-lilius` ([#43005](https://github.com/WordPress/gutenberg/pull/43005)).