Add test logic to test events when rendering on top of SSR markup #6668
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In the middle of working on #6618, I broke all events when rendering on top of server-generated markup, but no unit test failed. I looked into it, and I think that there is a test case that is intended to test this, but it has a bug. This PR attempts to fix that.
The test
should have the correct mounting behavior
inReactServerRendering-test.js
runs through a bunch of cases with client rendering and server-generated markup, and at the end, it tests a simple click event to make sure that events work on the client. Unfortunately, what it does right before that is test out a markup mismatch. This means that the client-generated rendering at that point did not actually follow the SSR code path; it found a checksum mismatch and then followed the non-SSR/useCreateElement code path.This is a pretty simple PR that tests the click event after the test renders on top of server-generated markup and doesn't get a markup mismatch.
Thanks!