Tests

Spring cleaning (#101) #438

Job	Run time
tests (macos-14, 3.10, highest)	4m 41s
tests (ubuntu-latest, 3.10, highest)	5m 54s
tests (ubuntu-latest, 3.12, lowest-direct)	6m 11s
tests (macos-14, 3.12, lowest-direct)	4m 38s
	21m 24s

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