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test: check that store, array, and group classes are serializable #2006

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merged 13 commits into from
Sep 14, 2024

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@jhamman jhamman commented Jul 2, 2024

This PR adds tests to insure that our store/array/group classes are serializable w/ using pickle and can be reliably roundtripped. This is important for Dask and other libraries that need to be able to share Zarr objects between processes/machines.

A necessary side effect of this work was the creation of a few additional __eq__ methods.

closes #1760

TODO:

  • Add unit tests and/or doctests in docstrings
  • Add docstrings and API docs for any new/modified user-facing classes and functions
  • New/modified features documented in docs/tutorial.rst
  • Changes documented in docs/release.rst
  • GitHub Actions have all passed
  • Test coverage is 100% (Codecov passes)

@jhamman jhamman added this to the 3.0.0 milestone Jul 2, 2024
tests/v3/test_group.py Outdated Show resolved Hide resolved
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Some typos in the test names but otherwise this looks good to go

@jhamman jhamman merged commit ceb3b36 into zarr-developers:v3 Sep 14, 2024
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@@ -681,152 +680,22 @@ async def test_asyncgroup_update_attributes(store: Store, zarr_format: ZarrForma
assert agroup_new_attributes.attrs == attributes_new


async def test_group_members_async(store: LocalStore | MemoryStore) -> None:
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@jhamman was this test_group_members_async test moved somewhere, or deliberately removed?

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Not deliberately removed. Must have been a bad merge conflict resolution. I'll bring it back today. Sorry!

dcherian added a commit to dcherian/zarr-python that referenced this pull request Sep 16, 2024
* v3:
  fix: opening a group with unspecified format finds either v2 or v3 (zarr-developers#2183)
  test: check that store, array, and group classes are serializable  (zarr-developers#2006)
  feature(store): V3 ZipStore (zarr-developers#2078)
  More typing fixes for tests (zarr-developers#2173)
  refactor: split metadata into v2 and v3 modules (zarr-developers#2163)
  Accept dictionaries for `store` argument (zarr-developers#2164)
  Simplify mypy config for tests (zarr-developers#2156)
  Fixed path segment duplication in open_array (zarr-developers#2167)
  Fixed test warnings (zarr-developers#2168)
  chore: update pre-commit hooks (zarr-developers#2165)
  Ensure that store_dict used for empty dicts (zarr-developers#2162)
  Bump pypa/gh-action-pypi-publish from 1.10.0 to 1.10.1 in the actions group (zarr-developers#2160)
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[v3] Test serialization of arrays and groups
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