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chore: add sparse index dtype checks to assert_equal #2362

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Merged
ilan-gold merged 5 commits into from
Mar 19, 2026
Merged

chore: add sparse index dtype checks to assert_equal #2362

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420ea56
Add sparse index dtype checks to assert_equal
LiudengZhang Mar 10, 2026
6cb2b35
simplify assert messages and parametrize sparse dtype test
LiudengZhang Mar 13, 2026
eee48e6
[pre-commit.ci] auto fixes from pre-commit.com hooks
pre-commit-ci[bot] Mar 13, 2026
fab9c47
Merge branch 'main' into fix/assert-equal-sparse-dtype
ilan-gold Mar 18, 2026
5119b20
Use int64 in sparse index dtype test to ensure actual mismatch
LiudengZhang Mar 19, 2026
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5 changes: 5 additions & 0 deletions src/anndata/tests/helpers.py
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Original file line number Diff line number Diff line change
Expand Up @@ -688,6 +688,11 @@ def assert_equal_sparse(
exact: bool = False,
elem_name: str | None = None,
):
if exact and sparse.issparse(b) and hasattr(a, "indptr") and hasattr(b, "indptr"):
assert a.indptr.dtype == b.indptr.dtype, f"{elem_name}: indptr dtype mismatch"
assert a.indices.dtype == b.indices.dtype, (
f"{elem_name}: indices dtype mismatch"
)
a = asarray(a)
assert_equal(b, a, exact=exact, elem_name=elem_name)

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15 changes: 15 additions & 0 deletions tests/test_helpers.py
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Expand Up @@ -248,6 +248,21 @@ def test_assert_equal_dask_arrays():
assert_equal(c, d)


@pytest.mark.parametrize("attr", ["indices", "indptr"])
def test_assert_equal_sparse_index_dtype(attr):
"""assert_equal(exact=True) should detect indptr/indices dtype mismatches."""
a = sparse.csr_matrix(np.eye(3))
b = sparse.csr_matrix(np.eye(3))
setattr(b, attr, getattr(b, attr).astype(np.int64))

# Non-exact comparison should pass (values are identical)
assert_equal(a, b, exact=False)

# Exact comparison should catch the dtype mismatch
with pytest.raises(AssertionError, match=attr):
assert_equal(a, b, exact=True)


def test_assert_equal_dask_sparse_arrays():
import dask.array as da
from scipy import sparse
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