Context

The reason that this initially came to my attention (and my motivation for this change) is that a JavaScript library that I use (element-plus) actually validates that focus and blur events are indeed instances of FocusEvent.

Because currently on main Cuprite generates Event objects (not FocusEvent objects), warnings are printed when I execute in my application's test suite a feature spec that uses the Capybara fill_in method (which triggers focus and blur events) to fill in one of the inputs managed by that element-plus library:

image

This change makes it so that those warnings are no longer printed when I use the Capybara fill_in method to fill in an input for which the focus and blur event types are validated by element-plus.

Looking at the Ruby 3.3 test run, there are five failing specs (link).

I believe that none of those failures are related to my change, and that those failures are already present on main. All five of those tests also fail when I run the test suite locally on main.

Edit: I submitted a separate PR to fix these spec failures.

Looking at the Ruby 3.3 test run, there are five failing specs (link).

I believe that none of those failures are related to my change, and that those failures are already present on main. All five of those tests also fail when I run the test suite locally on main.

I have submitted a separate PR to fix these spec failures that currently exist on the main branch: #273.