diff --git a/metagpt/actions/action_node.py b/metagpt/actions/action_node.py
index 7445e5000..3529942c3 100644
--- a/metagpt/actions/action_node.py
+++ b/metagpt/actions/action_node.py
@@ -340,15 +340,15 @@ class ActionNode:
             return self
 
 
-def action_node_from_tuple_example():
-    # 示例：列表中包含元组
-    list_of_tuples = [("key1", str, "Instruction 1", "Example 1")]
+def action_node_example():
+    node = ActionNode(key="key-0", expected_type=str, instruction="instruction-a", example="example-b")
 
-    # 从列表中创建 ActionNode 实例
-    nodes = [ActionNode(*data) for data in list_of_tuples]
-    for i in nodes:
-        logger.info(i)
+    logger.info(node.compile(context="123", schema="raw", mode="auto"))
+    logger.info(node.compile(context="123", schema="json", mode="auto"))
+    logger.info(node.compile(context="123", schema="markdown", mode="auto"))
+    logger.info(node.to_dict())
+    logger.info(node)
 
 
 if __name__ == "__main__":
-    action_node_from_tuple_example()
+    action_node_example()
diff --git a/metagpt/roles/role.py b/metagpt/roles/role.py
index 4becef625..8d229beec 100644
--- a/metagpt/roles/role.py
+++ b/metagpt/roles/role.py
@@ -521,7 +521,7 @@ class Role(BaseModel):
         return self._rc.memory.get(k=k)
 
     @role_raise_decorator
-    async def run(self, with_message=None):
+    async def run(self, with_message=None) -> Message | None:
         """Observe, and think and act based on the results of the observation"""
         if with_message:
             msg = None
diff --git a/tests/metagpt/actions/test_action_node.py b/tests/metagpt/actions/test_action_node.py
new file mode 100644
index 000000000..24b48f2f6
--- /dev/null
+++ b/tests/metagpt/actions/test_action_node.py
@@ -0,0 +1,76 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+"""
+@Time    : 2023/12/23 15:49
+@Author  : alexanderwu
+@File    : test_action_node.py
+"""
+import pytest
+
+from metagpt.actions import Action
+from metagpt.actions.action_node import ActionNode
+from metagpt.environment import Environment
+from metagpt.roles import Role
+from metagpt.schema import Message
+from metagpt.team import Team
+
+
+@pytest.mark.asyncio
+async def test_debate_two_roles():
+    action1 = Action(name="BidenSay", instruction="Express opinions and argue vigorously, and strive to gain votes")
+    action2 = Action(name="TrumpSay", instruction="Express opinions and argue vigorously, and strive to gain votes")
+    biden = Role(
+        name="Biden", profile="Democratic candidate", goal="Win the election", actions=[action1], watch=[action2]
+    )
+    trump = Role(
+        name="Trump", profile="Republican candidate", goal="Win the election", actions=[action2], watch=[action1]
+    )
+    env = Environment(desc="US election live broadcast")
+    team = Team(investment=10.0, env=env, roles=[biden, trump])
+
+    history = await team.run(idea="Topic: climate change. Under 80 words per message.", send_to="Biden", n_round=3)
+    assert "BidenSay" in history
+
+
+@pytest.mark.asyncio
+async def test_debate_one_role_in_env():
+    action = Action(name="Debate", instruction="Express opinions and argue vigorously, and strive to gain votes")
+    biden = Role(name="Biden", profile="Democratic candidate", goal="Win the election", actions=[action])
+    env = Environment(desc="US election live broadcast")
+    team = Team(investment=10.0, env=env, roles=[biden])
+    history = await team.run(idea="Topic: climate change. Under 80 words per message.", send_to="Biden", n_round=3)
+    assert "Debate" in history
+
+
+@pytest.mark.asyncio
+async def test_debate_one_role():
+    action = Action(name="Debate", instruction="Express opinions and argue vigorously, and strive to gain votes")
+    biden = Role(name="Biden", profile="Democratic candidate", goal="Win the election", actions=[action])
+    msg: Message = await biden.run("Topic: climate change. Under 80 words per message.")
+
+    assert len(msg.content) > 10
+    assert msg.sent_from == "metagpt.roles.role.Role"
+
+
+@pytest.mark.asyncio
+async def test_action_node():
+    node = ActionNode(key="key-a", expected_type=str, instruction="instruction-b", example="example-c")
+
+    raw_template = node.compile(context="123", schema="raw", mode="auto")
+    json_template = node.compile(context="123", schema="json", mode="auto")
+    markdown_template = node.compile(context="123", schema="markdown", mode="auto")
+    node_dict = node.to_dict()
+
+    assert "123" in raw_template
+    assert "instruction" in raw_template
+
+    assert "123" in json_template
+    assert "format example" in json_template
+    assert "constraint" in json_template
+    assert "action" in json_template
+    assert "[/" in json_template
+
+    assert "123" in markdown_template
+    assert "key-a" in markdown_template
+
+    assert node_dict["key-a"] == "instruction-b"
diff --git a/tests/metagpt/actions/test_detail_mining.py b/tests/metagpt/actions/test_generate_questions.py
similarity index 86%
rename from tests/metagpt/actions/test_detail_mining.py
rename to tests/metagpt/actions/test_generate_questions.py
index a178ec840..b7c9d3984 100644
--- a/tests/metagpt/actions/test_detail_mining.py
+++ b/tests/metagpt/actions/test_generate_questions.py
@@ -21,8 +21,8 @@ context = """
 
 @pytest.mark.asyncio
 async def test_generate_questions():
-    detail_mining = GenerateQuestions()
-    rsp = await detail_mining.run(context)
+    action = GenerateQuestions()
+    rsp = await action.run(context)
     logger.info(f"{rsp.content=}")
 
     assert "Questions" in rsp.content
diff --git a/tests/metagpt/actions/test_prepare_interview.py b/tests/metagpt/actions/test_prepare_interview.py
index 7c32882e0..cd0c850ed 100644
--- a/tests/metagpt/actions/test_prepare_interview.py
+++ b/tests/metagpt/actions/test_prepare_interview.py
@@ -3,7 +3,7 @@
 """
 @Time    : 2023/9/13 00:26
 @Author  : fisherdeng
-@File    : test_detail_mining.py
+@File    : test_generate_questions.py
 """
 import pytest