Test

Add more unit tests for GPU buffer #3567

Job	Run time
doctests	1m 4s
os=ubuntu-latest, py=3.11, np=1.25, deps=minimal	8m 36s
os=ubuntu-latest, py=3.11, np=1.25, deps=optional	8m 46s
os=ubuntu-latest, py=3.11, np=2.1, deps=minimal	8m 30s
py=3.11-min_deps	6m 45s
os=ubuntu-latest, py=3.11, np=2.1, deps=optional	8m 33s
py=3.13-upstream	11m 52s
os=ubuntu-latest, py=3.12, np=1.25, deps=minimal	9m 42s
os=ubuntu-latest, py=3.12, np=1.25, deps=optional	9m 49s
os=ubuntu-latest, py=3.12, np=2.1, deps=minimal	9m 43s
os=ubuntu-latest, py=3.12, np=2.1, deps=optional	10m 1s
os=ubuntu-latest, py=3.13, np=1.25, deps=minimal	12m 58s
os=ubuntu-latest, py=3.13, np=1.25, deps=optional	12m 57s
os=ubuntu-latest, py=3.13, np=2.1, deps=minimal	9m 42s
os=ubuntu-latest, py=3.13, np=2.1, deps=optional	10m 15s
os=macos-latest, py=3.11, np=1.25, deps=optional	5m 7s
os=macos-latest, py=3.13, np=2.1, deps=optional	5m 52s
os=windows-latest, py=3.11, np=1.25, deps=optional	12m 9s
os=windows-latest, py=3.13, np=2.1, deps=optional	13m 29s
Test complete	1s
	2h 55m 51s

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