fix: Fix crashes and enhance test reliability with session IDs (#6683)

* test: Add session ID parameter to ToolCallingAgentComponent test

* test: Add blocking for langchain_core runnables utility function

* test: Add session ID generation to agent component test

* fix: Safely delete agent message with ID check

Modify error handling in LCAgentComponent to only delete agent message if it has an ID attribute, preventing potential attribute errors

* test: Update ComponentToolkit test to use async start and verify results

Modify the test_component_tool_with_api_key test to:
- Use async_start() method for graph execution
- Add session ID to graph
- Improve result verification with vertex result tracking
- Update import path for ChatOutput component

* test: Skip cycle tests requiring LoopComponent

Update test_cycles.py to:
- Add skip markers for tests that now require a LoopComponent
- Improve error message with snapshots for debugging
- Preserve existing test logic while marking as skipped

* test: Add client fixture to tool calling agent test

Add usefixtures decorator to ensure client is available for the tool calling agent test, improving test setup and reliability

* test: Add client fixture to component tool test with API key

Enhance test_component_toolkit.py by adding the client fixture to the test_component_tool_with_api_key method, ensuring proper test setup for API key-dependent scenarios

* test: Add client fixture to agent component test with calculator

Add client fixture to the test_agent_component_with_calculator method to ensure proper test setup for API key-dependent scenarios

* test: Disable redundant component input tests

Remove commented-out test methods for checking required inputs across various components, as these tests were not providing significant value and the inputs are dynamic

* test: Comment out condition to skip nodes with Tool outputs in setup.py

* run formatter

* test: Re-enable condition to skip nodes with Tool outputs in setup.py

* [autofix.ci] apply automated fixes

---------

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>

src/backend/tests/unit/base/tools/test_component_toolkit.py

@@ -4,7 +4,7 @@ import pytest
 from langflow.base.tools.component_tool import ComponentToolkit
 from langflow.components.langchain_utilities import ToolCallingAgentComponent
 from langflow.components.models import OpenAIModelComponent
-from langflow.components.outputs import ChatOutput
+from langflow.components.outputs.chat import ChatOutput
 from langflow.components.tools.calculator import CalculatorToolComponent
 from langflow.graph import Graph
 from langflow.schema.data import Data
@@ -41,14 +41,15 @@ async def test_component_tool_with_api_key():
     openai_llm = OpenAIModelComponent()
     openai_llm.set(api_key=os.environ["OPENAI_API_KEY"])
     tool_calling_agent = ToolCallingAgentComponent()
-    tools = await chat_output.to_toolkit()
+
     tool_calling_agent.set(
         llm=openai_llm.build_model,
-        tools=tools,
+        tools=[chat_output.to_toolkit],
         input_value="Which tools are available? Please tell its name.",
     )
 
     g = Graph(start=tool_calling_agent, end=tool_calling_agent)
+    g.session_id = "test"
     assert g is not None
     results = [result async for result in g.async_start()]
     assert len(results) == 4