fix: metrics test

cognee/tests/tasks/descriptive_metrics/metrics_test_utils.py

@@ -1,9 +1,5 @@
-from cognee.tests.unit.interfaces.graph.get_graph_from_model_test import (
-    Document,
-    DocumentChunk,
-    Entity,
-    EntityType,
-)
+from typing import List
+from cognee.infrastructure.engine import DataPoint
 from cognee.tasks.storage.add_data_points import add_data_points
 from cognee.infrastructure.databases.graph.get_graph_engine import create_graph_engine
 import cognee
@@ -12,6 +8,32 @@ import json
 from pathlib import Path
 
 
+class Document(DataPoint):
+    path: str
+    metadata: dict = {"index_fields": []}
+
+
+class DocumentChunk(DataPoint):
+    part_of: Document
+    text: str
+    contains: List["Entity"] = None
+    metadata: dict = {"index_fields": ["text"]}
+
+
+class EntityType(DataPoint):
+    name: str
+    metadata: dict = {"index_fields": ["name"]}
+
+
+class Entity(DataPoint):
+    name: str
+    is_type: EntityType
+    metadata: dict = {"index_fields": ["name"]}
+
+
+DocumentChunk.model_rebuild()
+
+
 async def create_disconnected_test_graph():
     doc = Document(path="test/path")
     doc_chunk = DocumentChunk(part_of=doc, text="This is a chunk of text", contains=[])