tests

Optimize and simplify field definition #51

Job	Run time
Tests (8.1, ubuntu-latest, prefer-lowest)	31s
Tests (8.1, ubuntu-latest, prefer-stable)	21s
Tests (8.1, macos-latest, prefer-lowest)	1m 19s
Tests (8.1, macos-latest, prefer-stable)	1m 12s
Tests (8.1, windows-latest, prefer-lowest)	1m 14s
Tests (8.1, windows-latest, prefer-stable)	1m 23s
Tests (8.2, ubuntu-latest, prefer-lowest)	32s
Tests (8.2, ubuntu-latest, prefer-stable)	22s
Tests (8.2, macos-latest, prefer-lowest)	21s
Tests (8.2, macos-latest, prefer-stable)	33s
Tests (8.2, windows-latest, prefer-lowest)	1m 20s
Tests (8.2, windows-latest, prefer-stable)	1m 17s
Tests (8.3, ubuntu-latest, prefer-lowest)	39s
Tests (8.3, ubuntu-latest, prefer-stable)	41s
Tests (8.3, macos-latest, prefer-lowest)	1m 36s
Tests (8.3, macos-latest, prefer-stable)	1m 25s
Tests (8.3, windows-latest, prefer-lowest)	1m 16s
Tests (8.3, windows-latest, prefer-stable)	1m 13s
	17m 15s

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