참고소스 수정본

참고/neo4j-graphrag-python-main/tests/unit/experimental/components/test_neo4j_reader.py

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+#  Copyright (c) "Neo4j"
+#  Neo4j Sweden AB [https://neo4j.com]
+#  #
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#  #
+#      https://www.apache.org/licenses/LICENSE-2.0
+#  #
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+from unittest.mock import Mock
+
+import neo4j
+import pytest
+from neo4j_graphrag.experimental.components.neo4j_reader import (
+    Neo4jChunkReader,
+)
+from neo4j_graphrag.experimental.components.types import LexicalGraphConfig, TextChunks
+
+
+@pytest.mark.asyncio
+async def test_neo4j_chunk_reader(driver: Mock) -> None:
+    driver.execute_query.return_value = (
+        [neo4j.Record({"chunk": {"index": 0, "text": "some text", "id": "azerty"}})],
+        None,
+        None,
+    )
+    chunk_reader = Neo4jChunkReader(driver, neo4j_database="mydb")
+    res = await chunk_reader.run()
+
+    driver.execute_query.assert_called_once_with(
+        "MATCH (c:`Chunk`) RETURN c { .*, embedding: null } as chunk ORDER BY c.index",
+        database_="mydb",
+        routing_=neo4j.RoutingControl.READ,
+    )
+
+    assert isinstance(res, TextChunks)
+    assert len(res.chunks) == 1
+    chunk = res.chunks[0]
+    assert chunk.uid == "azerty"
+    assert chunk.text == "some text"
+    assert chunk.index == 0
+    assert chunk.metadata == {}
+
+
+@pytest.mark.asyncio
+async def test_neo4j_chunk_reader_custom_lg_config(driver: Mock) -> None:
+    driver.execute_query.return_value = (
+        [
+            neo4j.Record(
+                {
+                    "chunk": {
+                        "k": 0,
+                        "content": "some text",
+                        "id": "azerty",
+                        "other": "property",
+                    }
+                }
+            )
+        ],
+        None,
+        None,
+    )
+    chunk_reader = Neo4jChunkReader(driver)
+    res = await chunk_reader.run(
+        lexical_graph_config=LexicalGraphConfig(
+            chunk_node_label="Page",
+            chunk_text_property="content",
+            chunk_index_property="k",
+        )
+    )
+
+    driver.execute_query.assert_called_once_with(
+        "MATCH (c:`Page`) RETURN c { .*, embedding: null } as chunk ORDER BY c.k",
+        database_=None,
+        routing_=neo4j.RoutingControl.READ,
+    )
+
+    assert isinstance(res, TextChunks)
+    assert len(res.chunks) == 1
+    chunk = res.chunks[0]
+    assert chunk.uid == "azerty"
+    assert chunk.text == "some text"
+    assert chunk.index == 0
+    assert chunk.metadata == {"other": "property"}
+
+
+@pytest.mark.asyncio
+async def test_neo4j_chunk_reader_fetch_embedding(driver: Mock) -> None:
+    driver.execute_query.return_value = (
+        [
+            neo4j.Record(
+                {
+                    "chunk": {
+                        "index": 0,
+                        "text": "some text",
+                        "other": "property",
+                        "embedding": [1.0, 2.0, 3.0],
+                        "id": "azerty",
+                    }
+                }
+            )
+        ],
+        None,
+        None,
+    )
+    chunk_reader = Neo4jChunkReader(driver, fetch_embeddings=True)
+    res = await chunk_reader.run()
+
+    driver.execute_query.assert_called_once_with(
+        "MATCH (c:`Chunk`) RETURN c { .* } as chunk ORDER BY c.index",
+        database_=None,
+        routing_=neo4j.RoutingControl.READ,
+    )
+
+    assert isinstance(res, TextChunks)
+    assert len(res.chunks) == 1
+    chunk = res.chunks[0]
+    assert chunk.uid == "azerty"
+    assert chunk.text == "some text"
+    assert chunk.index == 0
+    assert chunk.metadata == {
+        "other": "property",
+        "embedding": [1.0, 2.0, 3.0],
+    }