refactor(filesystem): make pifs providers configurable

tests/test_metadata_generation.py

@@ -0,0 +1,30 @@
+import sys
+from pathlib import Path
+
+import pytest
+
+REPO_ROOT = Path(__file__).resolve().parents[1]
+if str(REPO_ROOT) not in sys.path:
+    sys.path.insert(0, str(REPO_ROOT))
+
+
+def test_metadata_generator_uses_provider_parameter():
+    from pageindex.filesystem.metadata_generation import (
+        MetadataGenerationError,
+        MetadataGenerationInput,
+        MetadataGenerator,
+    )
+
+    generator = MetadataGenerator(provider="unsupported", model="unused")
+    request = MetadataGenerationInput(
+        file_ref="file_a",
+        external_id="doc_a",
+        title="A",
+        source_path="docs/a.txt",
+        content_type="text/plain",
+        source_type=None,
+        text="hello",
+    )
+
+    with pytest.raises(MetadataGenerationError, match="unsupported metadata provider: unsupported"):
+        generator.generate(request, fields=["summary"])

tests/test_semantic_index.py

@@ -1,6 +1,8 @@
 import sys
 from pathlib import Path
 
+import pytest
+
 REPO_ROOT = Path(__file__).resolve().parents[1]
 if str(REPO_ROOT) not in sys.path:
     sys.path.insert(0, str(REPO_ROOT))
@@ -87,3 +89,10 @@ def test_summary_projection_indexes_unified_metadata_summary(tmp_path):
     assert hits[0].external_id == "doc_a"
     assert hits[0].metadata["summary"] == "Unified metadata summary."
     assert hits[0].metadata["department"] == "ops"
+
+
+def test_hash_embedding_provider_is_not_available():
+    from pageindex.filesystem.hybrid_projection import make_embedder
+
+    with pytest.raises(ValueError, match="unknown embedding provider: hash"):
+        make_embedder("hash", "unused", dimensions=256, timeout=1)