diff --git a/tests/agents/test_agents.py b/tests/agents/test_agents.py
index 44010868..274dfcd4 100644
--- a/tests/agents/test_agents.py
+++ b/tests/agents/test_agents.py
@@ -165,7 +165,7 @@ def test_context_manager(self):
 
 
 class TestHandlers:
-    class TestHandler(Handler):
+    class ExampleHandler(Handler):
         def __init__(self):
             self.events = []
             self.agent_messages = []
@@ -176,8 +176,9 @@ def on_event(self, event: Event):
         def on_agent_message(self, event: AgentMessage):
             self.agent_messages.append(event)
 
-    def test_agent_run_with_handlers(self, default_fake_llm):
-        handler = self.TestHandler()
+    @pytest.mark.usefixtures("default_fake_llm")
+    def test_agent_run_with_handlers(self):
+        handler = self.ExampleHandler()
         agent = Agent()
         agent.run(
             "Calculate 2 + 2", result_type=int, handlers=[handler], max_llm_calls=1
@@ -187,8 +188,9 @@ def test_agent_run_with_handlers(self, default_fake_llm):
         assert len(handler.agent_messages) == 1
 
     @pytest.mark.asyncio
-    async def test_agent_run_async_with_handlers(self, default_fake_llm):
-        handler = self.TestHandler()
+    @pytest.mark.usefixtures("default_fake_llm")
+    async def test_agent_run_async_with_handlers(self):
+        handler = self.ExampleHandler()
         agent = Agent()
         await agent.run_async(
             "Calculate 2 + 2", result_type=int, handlers=[handler], max_llm_calls=1
diff --git a/tests/tasks/test_tasks.py b/tests/tasks/test_tasks.py
index f2da7123..a294544d 100644
--- a/tests/tasks/test_tasks.py
+++ b/tests/tasks/test_tasks.py
@@ -429,7 +429,7 @@ class Person(BaseModel):
 
 
 class TestHandlers:
-    class TestHandler(Handler):
+    class ExampleHandler(Handler):
         def __init__(self):
             self.events = []
             self.agent_messages = []
@@ -441,16 +441,15 @@ def on_agent_message(self, event: AgentMessage):
             self.agent_messages.append(event)
 
     def test_task_run_with_handlers(self, default_fake_llm):
-        handler = self.TestHandler()
+        handler = self.ExampleHandler()
         task = Task(objective="Calculate 2 + 2", result_type=int)
         task.run(handlers=[handler], max_llm_calls=1)
 
         assert len(handler.events) > 0
         assert len(handler.agent_messages) == 1
 
-    @pytest.mark.asyncio
     async def test_task_run_async_with_handlers(self, default_fake_llm):
-        handler = self.TestHandler()
+        handler = self.ExampleHandler()
         task = Task(objective="Calculate 2 + 2", result_type=int)
         await task.run_async(handlers=[handler], max_llm_calls=1)
 
diff --git a/tests/test_run.py b/tests/test_run.py
index 41f5d470..d59d3ab8 100644
--- a/tests/test_run.py
+++ b/tests/test_run.py
@@ -5,7 +5,7 @@
 
 
 class TestHandlers:
-    class TestHandler(Handler):
+    class ExampleHandler(Handler):
         def __init__(self):
             self.events = []
             self.agent_messages = []
@@ -17,13 +17,13 @@ def on_agent_message(self, event: AgentMessage):
             self.agent_messages.append(event)
 
     def test_run_with_handlers(self, default_fake_llm):
-        handler = self.TestHandler()
+        handler = self.ExampleHandler()
         run("what's 2 + 2", result_type=int, handlers=[handler], max_llm_calls=1)
         assert len(handler.events) > 0
         assert len(handler.agent_messages) == 1
 
     async def test_run_async_with_handlers(self, default_fake_llm):
-        handler = self.TestHandler()
+        handler = self.ExampleHandler()
         await run_async(
             "what's 2 + 2", result_type=int, handlers=[handler], max_llm_calls=1
         )
diff --git a/tests/tools/test_lc_tools.py b/tests/tools/test_lc_tools.py
index 0a6d54b0..58d5220d 100644
--- a/tests/tools/test_lc_tools.py
+++ b/tests/tools/test_lc_tools.py
@@ -13,8 +13,8 @@ class LCBaseToolInput(BaseModel):
 
 
 class LCBaseTool(BaseTool):
-    name = "TestTool"
-    description = "A test tool"
+    name: str = "TestTool"
+    description: str = "A test tool"
     args_schema: type[BaseModel] = LCBaseToolInput
 
     def _run(self, x: int) -> str: