Test

fix: improve type safety and error handling #3557

Job	Run time
test (ubuntu-latest, 3.14, highest)	32s
test (windows-latest, 3.12, lowest-direct)	1m 35s
test (macos-latest, 3.13, highest)	26s
test (windows-latest, 3.14, highest)	48s
test (macos-latest, 3.11, highest)	40s
test (ubuntu-latest, 3.10, lowest-direct)	29s
test (ubuntu-latest, 3.13, highest)	31s
test (macos-latest, 3.14, highest)	31s
coverage-combine	25s
alls-green	4s
	6m 1s

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