Fix/new mem mistaken for current fixing #2875 (#2876)

tests/configs/test_prompts.py

@@ -17,3 +17,35 @@ def test_get_update_memory_messages():
     ##
     result = prompts.get_update_memory_messages(retrieved_old_memory_dict, response_content, None)
     assert result.startswith(prompts.DEFAULT_UPDATE_MEMORY_PROMPT)
+
+
+def test_get_update_memory_messages_empty_memory():
+    # Test with None for retrieved_old_memory_dict
+    result = prompts.get_update_memory_messages(
+        None, 
+        ["new fact"], 
+        None
+    )
+    assert "Current memory is empty" in result
+
+    # Test with empty list for retrieved_old_memory_dict
+    result = prompts.get_update_memory_messages(
+        [], 
+        ["new fact"], 
+        None
+    )
+    assert "Current memory is empty" in result
+
+
+def test_get_update_memory_messages_non_empty_memory():
+    # Non-empty memory scenario
+    memory_data = [{"id": "1", "text": "existing memory"}]
+    result = prompts.get_update_memory_messages(
+        memory_data, 
+        ["new fact"], 
+        None
+    )
+    # Check that the memory data is displayed
+    assert str(memory_data) in result
+    # And that the non-empty memory message is present
+    assert "current content of my memory" in result