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Test sa_decode methd on IndexIVFFlat #4098

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Test sa_decode methd on IndexIVFFlat #4098

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14 changes: 14 additions & 0 deletions tests/test_ivf_index.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -204,6 +204,20 @@ TEST(IVF, list_context) {
EXPECT_EQ(nb, context.list_nos.size())
<< "should have correct number of list numbers";
}
{
constexpr size_t num_vecs = 5; // number of vectors
std::vector<float> vecs(num_vecs * d);
for (size_t i = 0; i < num_vecs * d; i++) {
vecs[i] = distrib(rng);
}
const size_t codeSize = index.sa_code_size();
std::vector<uint8_t> encodedData(num_vecs * codeSize);
index.sa_encode(num_vecs, vecs.data(), encodedData.data());
std::vector<float> decodedVecs(num_vecs * d);
index.sa_decode(num_vecs, encodedData.data(), decodedVecs.data());
EXPECT_EQ(vecs, decodedVecs)
<< "decoded vectors should be the same as the original vectors that were encoded";
}
{
constexpr faiss::idx_t k = 100;
constexpr size_t nprobe = 10;
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