Move test extras dependencies under dependency-groups#66

Merged

dcherian merged 3 commits intoxarray-contrib:mainfrom

weiji14:dep-groups

Jan 22, 2026

Commits on Jan 14, 2026

Move test extras dependencies under dependency-groups
weiji14
committed

Commits on Jan 15, 2026

Use assert_equal instead of assert_identical to avoid comparing indexes
weiji14
committed

Commits on Jan 22, 2026

Add _as_pandas_index() method and assert_identical test helper

dcherian
and
claude
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