[skip ci]Update test comments (#9536)

Signed-off-by: yanliang567 <yanliang.qiao@zilliz.com>

tests/python_client/testcases/test_partition.py

@@ -140,9 +140,10 @@ class TestCreateBase:
     @pytest.mark.tags(CaseLabel.L0)
     def test_create_partition_insert_with_tag_not_existed(self, connect, collection):
         """
-        target: test create partition, and insert vectors, check status returned
-        method: call function: create_partition
-        expected: status not ok
+        target: try to insert data into a non existing partition
+        method: 1. create a partition in a collection
+                2. try to insert data into non existing partition
+        expected: raise an exception
         """
         tag_new = "tag_new"
         connect.create_partition(collection, default_tag)