[skip ci] Add comments for test case (#8753)

Signed-off-by: Binbin Lv <binbin.lv@zilliz.com>

tests/python_client/testcases/test_collection.py

@@ -3220,6 +3220,11 @@ class TestLoadPartitionInvalid(object):
 
     @pytest.mark.tags(CaseLabel.L2)
     def test_release_partition_with_invalid_partition_name(self, connect, collection, get_partition_name):
+        """
+        target: test release invalid partition
+        method: release partition with invalid partition name
+        expected: raise exception
+        """
         partition_name = get_partition_name
         with pytest.raises(Exception) as e:
             connect.load_partitions(collection, [partition_name])