Tests

Improve and fix window event listener #25

Job	Run time
Tests (8.4, macos-latest, prefer-stable)	1m 20s
Tests (8.4, windows-latest, prefer-lowest)	47s
Tests (8.4, ubuntu-latest, prefer-lowest)	32s
Tests (8.4, windows-latest, prefer-stable)	43s
Tests (8.5, windows-latest, prefer-stable)	38s
Tests (8.4, macos-latest, prefer-lowest)	2m 14s
Tests (8.5, macos-latest, prefer-lowest)	2m 10s
Tests (8.5, ubuntu-latest, prefer-lowest)	21s
Tests (8.5, windows-latest, prefer-lowest)	40s
Tests (8.4, ubuntu-latest, prefer-stable)	26s
Tests (8.5, ubuntu-latest, prefer-stable)	33s
Tests (8.5, macos-latest, prefer-stable)	1m 17s
	11m 41s

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