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bvandeusen 696c17fe29 feat(fc2b): add SigLIP embedder wrapper
Direct port of ImageRepo's siglip.py. Lazy torch/transformers import so
the web container can import the module (for enqueue logic) without the
torch cost. EMBED_DIM=1152 asserted against the schema's Vector(1152)
columns. Real inference runs in the local integration suite.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-15 07:36:17 -04:00

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801 B
Python

"""Embedder unit tests. The SigLIP model is a multi-GB download not present
in CI, so these test only the import-safety contract and the singleton.
Real embedding runs in the local integration suite.
"""
from backend.app.services.ml.embedder import (
EMBED_DIM,
MODEL_VERSION,
Embedder,
get_embedder,
)
def test_embed_dim_matches_schema():
# image_record.siglip_embedding and tag_reference_embedding.embedding
# are both Vector(1152). This must stay in sync.
assert EMBED_DIM == 1152
def test_model_version_default():
assert MODEL_VERSION == "siglip-so400m-patch14-384"
def test_get_embedder_singleton():
assert get_embedder() is get_embedder()
def test_not_loaded_until_called():
e = Embedder()
assert e._model is None # not loaded until .load()