Andrey Lushnikov 3d3ce135f5
test: co-locate beforeunload tests (#4313)
This patch:
- co-locates beforeunload tests
- adds new tests to make sure browser and browsercontext can be closed if there's
  a page with beforeunload listener
- re-writes the `should access page after beforeunload` test to properly
  emit `beforeunload` event

References #4021
2020-11-02 17:29:35 -08:00
..
2020-10-19 10:07:33 -07:00