tests

tests #505

Job	Run time
Tests (8.1, ubuntu-latest, prefer-lowest)	20s
Tests (8.1, ubuntu-latest, prefer-stable)	31s
Tests (8.1, macos-latest, prefer-lowest)	1m 24s
Tests (8.1, macos-latest, prefer-stable)	1m 14s
Tests (8.1, windows-latest, prefer-lowest)	37s
Tests (8.1, windows-latest, prefer-stable)	43s
Tests (8.2, ubuntu-latest, prefer-lowest)	16s
Tests (8.2, ubuntu-latest, prefer-stable)	14s
Tests (8.2, macos-latest, prefer-lowest)	1m 13s
Tests (8.2, macos-latest, prefer-stable)	1m 14s
Tests (8.2, windows-latest, prefer-lowest)	40s
Tests (8.2, windows-latest, prefer-stable)	43s
Tests (8.3, ubuntu-latest, prefer-lowest)	13s
Tests (8.3, ubuntu-latest, prefer-stable)	14s
Tests (8.3, macos-latest, prefer-lowest)	1m 23s
Tests (8.3, macos-latest, prefer-stable)	1m 18s
Tests (8.3, windows-latest, prefer-lowest)	40s
Tests (8.3, windows-latest, prefer-stable)	38s
	13m 35s

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