diff --git a/python/tests/detail/test_collection_dml.py b/python/tests/detail/test_collection_dml.py
index 08f2334..f35eb06 100644
--- a/python/tests/detail/test_collection_dml.py
+++ b/python/tests/detail/test_collection_dml.py
@@ -211,23 +211,13 @@ FIELD_VALUE_VALID_LIST = [
 FIELD_VALUE_INVALID_LIST = [
     (
         "bool_field",
-        [
-            "True",
-            "False",
-            "",
-        ],
+        ["True", "False", "", "测试"],
     ),
-    ("float_field", ["invalid", [1.0], {"value": 1.0}]),
-    ("double_field", ["invalid", [1.0], {"value": 1.0}]),
+    ("float_field", ["invalid", [1.0], {"value": 1.0}, "测试"]),
+    ("double_field", ["invalid", [1.0], {"value": 1.0}, "测试"]),
     (
         "int32_field",
-        [
-            "invalid",
-            [1],
-            {"value": 1},
-            2147483648,
-            -2147483649,
-        ],
+        ["invalid", [1], {"value": 1}, 2147483648, -2147483649, "测试"],
     ),
     (
         "int64_field",
@@ -237,27 +227,16 @@ FIELD_VALUE_INVALID_LIST = [
             {"value": 1},
             9223372036854775808,
             -9223372036854775809,
+            "测试",
         ],
     ),
     (
         "uint32_field",
-        [
-            "invalid",
-            [1],
-            {"value": 1},
-            4294967296,
-            -1,
-        ],
+        ["invalid", [1], {"value": 1}, 4294967296, -1, "测试"],
     ),
     (
         "uint64_field",
-        [
-            "invalid",
-            [1],
-            {"value": 1},
-            18446744073709551616,
-            -1,
-        ],
+        ["invalid", [1], {"value": 1}, 18446744073709551616, -1, "测试"],
     ),
     (
         "string_field",
@@ -271,84 +250,35 @@ FIELD_VALUE_INVALID_LIST = [
     ),
     (
         "array_bool_field",
-        [
-            True,
-            False,
-            [True, "invalid"],
-            {"key": True},
-        ],
+        [True, False, [True, "invalid"], {"key": True}, "测试"],
     ),
     (
         "array_float_field",
-        [
-            [1.0, "invalid"],
-            [1.0, None],
-            "invalid",
-            [1.0, [2.0]],
-            1.0,
-        ],
+        [[1.0, "invalid"], [1.0, None], "invalid", [1.0, [2.0]], 1.0, "测试"],
     ),
     (
         "array_double_field",
-        [
-            [1.0, "invalid"],
-            [1.0, None],
-            "invalid",
-            [1.0, [2.0]],
-            1.0,
-        ],
+        [[1.0, "invalid"], [1.0, None], "invalid", [1.0, [2.0]], 1.0, "测试"],
     ),
     (
         "array_int32_field",
-        [
-            [1, "invalid"],
-            [1, None],
-            "invalid",
-            [1, [2]],
-            1,
-        ],
+        [[1, "invalid"], [1, None], "invalid", [1, [2]], 1, "测试"],
     ),
     (
         "array_int64_field",
-        [
-            [1, "invalid"],
-            [1, None],
-            "invalid",
-            [1, [2]],
-            1,
-        ],
+        [[1, "invalid"], [1, None], "invalid", [1, [2]], 1, "测试"],
     ),
     (
         "array_uint32_field",
-        [
-            [1, "invalid"],
-            [1, None],
-            [1, -1],
-            "invalid",
-            [1, [2]],
-            1,
-        ],
+        [[1, "invalid"], [1, None], [1, -1], "invalid", [1, [2]], 1, "测试"],
     ),
     (
         "array_uint64_field",
-        [
-            [1, "invalid"],
-            [1, None],
-            [1, -1],
-            "invalid",
-            [1, [2]],
-            1,
-        ],
+        [[1, "invalid"], [1, None], [1, -1], "invalid", [1, [2]], 1, "测试"],
     ),
     (
         "array_string_field",
-        [
-            ["valid", 123],
-            ["valid", None],
-            "invalid",
-            [["nested"]],
-            123,
-        ],
+        [["valid", 123], ["valid", None], "invalid", [["nested"]], 123, "测试"],
     ),
 ]
 
diff --git a/python/tests/detail/test_collection_open.py b/python/tests/detail/test_collection_open.py
index a275c92..0ae1eef 100644
--- a/python/tests/detail/test_collection_open.py
+++ b/python/tests/detail/test_collection_open.py
@@ -691,6 +691,12 @@ class TestCollectionOpen:
                     nullable=False,
                     index_param=InvertIndexParam(),
                 ),
+                FieldSchema(
+                    "description",
+                    DataType.STRING,
+                    nullable=True,
+                    index_param=InvertIndexParam(),
+                ),
             ],
             vectors=[
                 VectorSchema(
@@ -720,7 +726,7 @@ class TestCollectionOpen:
         # Insert some data
         doc = Doc(
             id="1",
-            fields={"id": 1, "name": "test"},
+            fields={"id": 1, "name": "test", "description": "这是一个中文描述。"},
             vectors={"dense": np.random.random(128).tolist()},
         )
 
@@ -743,6 +749,7 @@ class TestCollectionOpen:
         fetched_doc = fetched_docs["1"]
         assert fetched_doc.id == "1"
         assert fetched_doc.field("name") == "test"
+        assert fetched_doc.field("description") == "这是一个中文描述。"
 
         # Clean up
         if hasattr(coll2, "destroy") and coll2 is not None: