Test

Add more unit tests for GPU buffer #3568

Job	Run time
doctests	1m 7s
os=ubuntu-latest, py=3.11, np=1.25, deps=minimal	8m 48s
os=ubuntu-latest, py=3.11, np=1.25, deps=optional	9m 0s
py=3.11-min_deps	6m 42s
os=ubuntu-latest, py=3.11, np=2.1, deps=minimal	8m 19s
py=3.13-upstream	11m 22s
os=ubuntu-latest, py=3.11, np=2.1, deps=optional	8m 34s
os=ubuntu-latest, py=3.12, np=1.25, deps=minimal	10m 10s
os=ubuntu-latest, py=3.12, np=1.25, deps=optional	9m 38s
os=ubuntu-latest, py=3.12, np=2.1, deps=minimal	9m 38s
os=ubuntu-latest, py=3.12, np=2.1, deps=optional	9m 37s
os=ubuntu-latest, py=3.13, np=1.25, deps=minimal	12m 48s
os=ubuntu-latest, py=3.13, np=1.25, deps=optional	12m 59s
os=ubuntu-latest, py=3.13, np=2.1, deps=minimal	10m 12s
os=ubuntu-latest, py=3.13, np=2.1, deps=optional	10m 4s
os=macos-latest, py=3.11, np=1.25, deps=optional	5m 0s
os=macos-latest, py=3.13, np=2.1, deps=optional	5m 5s
os=windows-latest, py=3.11, np=1.25, deps=optional	15m 14s
os=windows-latest, py=3.13, np=2.1, deps=optional	13m 31s
Test complete	1s
	2h 57m 49s

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