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test(python): migrate index count tests to the 0.8 API #226

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Merged
gouyt13 merged 2 commits into from
Nov 11, 2026
Merged

test(python): migrate index count tests to the 0.8 API #226

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test(python): migrate index count tests to the 0.8 API
leo062644 Nov 10, 2026
86814a9
test(python): apply index-count review suggestions
leo062644 Nov 11, 2026
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28 changes: 19 additions & 9 deletions tests/python/test_index_counts.py
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Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,7 @@ def check_counts(index, capacity, stored, active):
@pytest.mark.parametrize(
"kind,bits",
[("ivf", 1), ("ivf", 4), ("ivf", 32), ("hnsw", 1), ("hnsw", 9)]
+ [("symqg", bits) for bits in (0, 4, 8)],
+ [("symqg", bits) for bits in (32, 4, 8)],
)
def test_count_contract_through_lifecycle(tmp_path, kind, bits):
metric = "l2"
Expand All @@ -28,20 +28,28 @@ def test_count_contract_through_lifecycle(tmp_path, kind, bits):
centroid = np.zeros((1, dim), np.float32)
assignments = np.zeros(count + 4, np.uint32)
if kind == "ivf":
index = IvfIndex(dim, count, 1, bits, metric=metric)
capacity = count
index = IvfIndex(dim, 1, nbits=bits, metric=metric)
capacity = 0
elif kind == "hnsw":
index = HnswIndex(dim, 64, M=8, ef_construction=40, nbits=bits, metric=metric)
index = HnswIndex(
dim, num_clusters=1, M=8, ef_construction=40, nbits=bits, metric=metric
)
index.resize(64)
capacity = 64
else:
index = SymqgIndex(dim, max_degree=32, quantization_bits=bits, metric=metric)
index = SymqgIndex(
dim, max_degree=32, ef_construction=40, nbits=bits, metric=metric
)
capacity = 0
check_counts(index, capacity, 0, 0)
if kind == "symqg":
index.build(data[:count], ef_construction=40, num_threads=1)
index.add(data[:count], num_threads=1)
capacity = count
else:
index.build(data[:count], centroid, assignments[:count])
index.set_centroids(centroid)
index.add(data[:count], cluster_ids=assignments[:count], num_threads=1)
if kind == "ivf":
capacity = count
check_counts(index, capacity, count, count)

path = tmp_path / "counts.index"
Expand All @@ -66,7 +74,7 @@ def test_count_contract_through_lifecycle(tmp_path, kind, bits):
capacity = 80
check_counts(index, capacity, count, count - 3)

ids = index.add(data[count : count + 3], assignments[:3])
ids = index.add(data[count : count + 3], cluster_ids=assignments[:3])
np.testing.assert_array_equal(ids, np.arange(count, count + 3))
stored = count + 3
if kind == "ivf":
Expand All @@ -87,7 +95,9 @@ def test_count_contract_through_lifecycle(tmp_path, kind, bits):
hits, _ = index.search(data[:1], k=1, **args)
assert np.all(hits == np.iinfo(np.uint32).max)

np.testing.assert_array_equal(index.add(data[-1:], assignments[:1]), [stored])
np.testing.assert_array_equal(
index.add(data[-1:], cluster_ids=assignments[:1]), [stored]
)
stored += 1
if kind == "ivf":
capacity = stored
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