add integration test guide

Signed-off-by: ChengZi <chen.zhang@zilliz.com>

libs/partners/milvus/tests/integration_tests/retrievers/test_milvus_hybrid_search.py

@@ -13,6 +13,18 @@ from pymilvus import (
 from langchain_milvus.retrievers import MilvusCollectionHybridSearchRetriever
 from tests.integration_tests.utils import FakeEmbeddings
 
+#
+# To run this test properly, please start a Milvus server with the following command:
+#
+# ```shell
+# wget https://raw.githubusercontent.com/milvus-io/milvus/master/scripts/standalone_embed.sh
+# bash standalone_embed.sh start
+# ```
+#
+# Here is the reference:
+# https://milvus.io/docs/install_standalone-docker.md
+#
+
 
 class TestMilvusHybridSearch(unittest.TestCase):
     def setUp(self) -> None:

libs/partners/milvus/tests/integration_tests/vectorstores/test_milvus.py

@@ -10,6 +10,18 @@ from tests.integration_tests.utils import (
     fake_texts,
 )
 
+#
+# To run this test properly, please start a Milvus server with the following command:
+#
+# ```shell
+# wget https://raw.githubusercontent.com/milvus-io/milvus/master/scripts/standalone_embed.sh
+# bash standalone_embed.sh start
+# ```
+#
+# Here is the reference:
+# https://milvus.io/docs/install_standalone-docker.md
+#
+
 
 def _milvus_from_texts(
     metadatas: Optional[List[dict]] = None,

libs/partners/milvus/tests/integration_tests/vectorstores/test_zilliz.py

@@ -1,4 +1,5 @@
 """Test Zilliz functionality."""
+import os
 from typing import List, Optional
 
 from langchain_core.documents import Document
@@ -10,6 +11,11 @@ from tests.integration_tests.utils import (
     fake_texts,
 )
 
+#
+# To run this test properly, you need to log in [Zilliz](https://zilliz.com/cloud),
+# and set `ZILLIZ_CLOUD_URI` and `ZILLIZ_CLOUD_API_KEY` environment variables.
+#
+
 
 def _zilliz_from_texts(
     metadatas: Optional[List[dict]] = None, drop: bool = True
@@ -19,9 +25,8 @@ def _zilliz_from_texts(
         FakeEmbeddings(),
         metadatas=metadatas,
         connection_args={
-            "uri": "",
-            "user": "",
-            "password": "",
+            "uri": os.getenv("ZILLIZ_CLOUD_URI"),
+            "token": os.getenv("ZILLIZ_CLOUD_API_KEY"),
             "secure": True,
         },
         drop_old=drop,