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# Copyright (c) Meta Platforms, Inc. and affiliates.
#
# This source code is licensed under the MIT license found in the
# LICENSE file in the root directory of this source tree.
from __future__ import absolute_import, division, print_function
import unittest
import faiss
class TestBinaryFactory(unittest.TestCase):
def test_factory_IVF(self):
index = faiss.index_binary_factory(16, "BIVF10")
assert index.invlists is not None
assert index.nlist == 10
assert index.code_size == 2
def test_factory_Flat(self):
index = faiss.index_binary_factory(16, "BFlat")
assert index.code_size == 2
def test_factory_HNSW(self):
index = faiss.index_binary_factory(256, "BHNSW32")
assert index.code_size == 32
def test_factory_IVF_HNSW(self):
index = faiss.index_binary_factory(256, "BIVF1024_BHNSW32")
assert index.code_size == 32
assert index.nlist == 1024
def test_factory_Hash(self):
index = faiss.index_binary_factory(256, "BHash12")
assert index.b == 12
def test_factory_MultiHash(self):
index = faiss.index_binary_factory(256, "BHash5x6")
assert index.b == 6
assert index.nhash == 5
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