Files
hermes-agent/tests/test_delegate.py
teknium1 90e5211128 feat: implement subagent delegation for task management
- Introduced the `delegate_task` tool, allowing the main agent to spawn child AIAgent instances with isolated context for complex tasks.
- Supported both single-task and batch processing (up to 3 concurrent tasks) to enhance task management capabilities.
- Updated configuration options for delegation, including maximum iterations and default toolsets for subagents.
- Enhanced documentation to provide clear guidance on using the delegation feature and its configuration.
- Added comprehensive tests to ensure the functionality and reliability of the delegation logic.
2026-02-20 03:15:53 -08:00

238 lines
9.1 KiB
Python

#!/usr/bin/env python3
"""
Tests for the subagent delegation tool.
Uses mock AIAgent instances to test the delegation logic without
requiring API keys or real LLM calls.
Run with: python -m pytest tests/test_delegate.py -v
or: python tests/test_delegate.py
"""
import json
import os
import sys
import time
import unittest
from unittest.mock import MagicMock, patch
sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
from tools.delegate_tool import (
DELEGATE_BLOCKED_TOOLS,
DELEGATE_TASK_SCHEMA,
MAX_CONCURRENT_CHILDREN,
MAX_DEPTH,
check_delegate_requirements,
delegate_task,
_build_child_system_prompt,
_strip_blocked_tools,
)
def _make_mock_parent(depth=0):
"""Create a mock parent agent with the fields delegate_task expects."""
parent = MagicMock()
parent.base_url = "https://openrouter.ai/api/v1"
parent.model = "anthropic/claude-sonnet-4"
parent.platform = "cli"
parent.providers_allowed = None
parent.providers_ignored = None
parent.providers_order = None
parent.provider_sort = None
parent._session_db = None
parent._delegate_depth = depth
parent._active_children = []
return parent
class TestDelegateRequirements(unittest.TestCase):
def test_always_available(self):
self.assertTrue(check_delegate_requirements())
def test_schema_valid(self):
self.assertEqual(DELEGATE_TASK_SCHEMA["name"], "delegate_task")
props = DELEGATE_TASK_SCHEMA["parameters"]["properties"]
self.assertIn("goal", props)
self.assertIn("tasks", props)
self.assertIn("context", props)
self.assertIn("toolsets", props)
self.assertIn("model", props)
self.assertIn("max_iterations", props)
self.assertEqual(props["tasks"]["maxItems"], 3)
class TestChildSystemPrompt(unittest.TestCase):
def test_goal_only(self):
prompt = _build_child_system_prompt("Fix the tests")
self.assertIn("Fix the tests", prompt)
self.assertIn("YOUR TASK", prompt)
self.assertNotIn("CONTEXT", prompt)
def test_goal_with_context(self):
prompt = _build_child_system_prompt("Fix the tests", "Error: assertion failed in test_foo.py line 42")
self.assertIn("Fix the tests", prompt)
self.assertIn("CONTEXT", prompt)
self.assertIn("assertion failed", prompt)
def test_empty_context_ignored(self):
prompt = _build_child_system_prompt("Do something", " ")
self.assertNotIn("CONTEXT", prompt)
class TestStripBlockedTools(unittest.TestCase):
def test_removes_blocked_toolsets(self):
result = _strip_blocked_tools(["terminal", "file", "delegation", "clarify", "memory", "code_execution"])
self.assertEqual(sorted(result), ["file", "terminal"])
def test_preserves_allowed_toolsets(self):
result = _strip_blocked_tools(["terminal", "file", "web", "browser"])
self.assertEqual(sorted(result), ["browser", "file", "terminal", "web"])
def test_empty_input(self):
result = _strip_blocked_tools([])
self.assertEqual(result, [])
class TestDelegateTask(unittest.TestCase):
def test_no_parent_agent(self):
result = json.loads(delegate_task(goal="test"))
self.assertIn("error", result)
self.assertIn("parent agent", result["error"])
def test_depth_limit(self):
parent = _make_mock_parent(depth=2)
result = json.loads(delegate_task(goal="test", parent_agent=parent))
self.assertIn("error", result)
self.assertIn("depth limit", result["error"].lower())
def test_no_goal_or_tasks(self):
parent = _make_mock_parent()
result = json.loads(delegate_task(parent_agent=parent))
self.assertIn("error", result)
def test_empty_goal(self):
parent = _make_mock_parent()
result = json.loads(delegate_task(goal=" ", parent_agent=parent))
self.assertIn("error", result)
def test_task_missing_goal(self):
parent = _make_mock_parent()
result = json.loads(delegate_task(tasks=[{"context": "no goal here"}], parent_agent=parent))
self.assertIn("error", result)
@patch("tools.delegate_tool._run_single_child")
def test_single_task_mode(self, mock_run):
mock_run.return_value = {
"task_index": 0, "status": "completed",
"summary": "Done!", "api_calls": 3, "duration_seconds": 5.0
}
parent = _make_mock_parent()
result = json.loads(delegate_task(goal="Fix tests", context="error log...", parent_agent=parent))
self.assertIn("results", result)
self.assertEqual(len(result["results"]), 1)
self.assertEqual(result["results"][0]["status"], "completed")
self.assertEqual(result["results"][0]["summary"], "Done!")
mock_run.assert_called_once()
@patch("tools.delegate_tool._run_single_child")
def test_batch_mode(self, mock_run):
mock_run.side_effect = [
{"task_index": 0, "status": "completed", "summary": "Result A", "api_calls": 2, "duration_seconds": 3.0},
{"task_index": 1, "status": "completed", "summary": "Result B", "api_calls": 4, "duration_seconds": 6.0},
]
parent = _make_mock_parent()
tasks = [
{"goal": "Research topic A"},
{"goal": "Research topic B"},
]
result = json.loads(delegate_task(tasks=tasks, parent_agent=parent))
self.assertIn("results", result)
self.assertEqual(len(result["results"]), 2)
self.assertEqual(result["results"][0]["summary"], "Result A")
self.assertEqual(result["results"][1]["summary"], "Result B")
self.assertIn("total_duration_seconds", result)
@patch("tools.delegate_tool._run_single_child")
def test_batch_capped_at_3(self, mock_run):
mock_run.return_value = {
"task_index": 0, "status": "completed",
"summary": "Done", "api_calls": 1, "duration_seconds": 1.0
}
parent = _make_mock_parent()
tasks = [{"goal": f"Task {i}"} for i in range(5)]
result = json.loads(delegate_task(tasks=tasks, parent_agent=parent))
# Should only run 3 tasks (MAX_CONCURRENT_CHILDREN)
self.assertEqual(mock_run.call_count, 3)
@patch("tools.delegate_tool._run_single_child")
def test_batch_ignores_toplevel_goal(self, mock_run):
"""When tasks array is provided, top-level goal/context/toolsets are ignored."""
mock_run.return_value = {
"task_index": 0, "status": "completed",
"summary": "Done", "api_calls": 1, "duration_seconds": 1.0
}
parent = _make_mock_parent()
result = json.loads(delegate_task(
goal="This should be ignored",
tasks=[{"goal": "Actual task"}],
parent_agent=parent,
))
# The mock was called with the tasks array item, not the top-level goal
call_args = mock_run.call_args
self.assertEqual(call_args.kwargs.get("goal") or call_args[1].get("goal", call_args[0][1] if len(call_args[0]) > 1 else None), "Actual task")
@patch("tools.delegate_tool._run_single_child")
def test_failed_child_included_in_results(self, mock_run):
mock_run.return_value = {
"task_index": 0, "status": "error",
"summary": None, "error": "Something broke",
"api_calls": 0, "duration_seconds": 0.5
}
parent = _make_mock_parent()
result = json.loads(delegate_task(goal="Break things", parent_agent=parent))
self.assertEqual(result["results"][0]["status"], "error")
self.assertIn("Something broke", result["results"][0]["error"])
def test_depth_increments(self):
"""Verify child gets parent's depth + 1."""
parent = _make_mock_parent(depth=0)
with patch("run_agent.AIAgent") as MockAgent:
mock_child = MagicMock()
mock_child.run_conversation.return_value = {
"final_response": "done", "completed": True, "api_calls": 1
}
MockAgent.return_value = mock_child
delegate_task(goal="Test depth", parent_agent=parent)
self.assertEqual(mock_child._delegate_depth, 1)
def test_active_children_tracking(self):
"""Verify children are registered/unregistered for interrupt propagation."""
parent = _make_mock_parent(depth=0)
with patch("run_agent.AIAgent") as MockAgent:
mock_child = MagicMock()
mock_child.run_conversation.return_value = {
"final_response": "done", "completed": True, "api_calls": 1
}
MockAgent.return_value = mock_child
delegate_task(goal="Test tracking", parent_agent=parent)
self.assertEqual(len(parent._active_children), 0)
class TestBlockedTools(unittest.TestCase):
def test_blocked_tools_constant(self):
for tool in ["delegate_task", "clarify", "memory", "send_message", "execute_code"]:
self.assertIn(tool, DELEGATE_BLOCKED_TOOLS)
def test_constants(self):
self.assertEqual(MAX_CONCURRENT_CHILDREN, 3)
self.assertEqual(MAX_DEPTH, 2)
if __name__ == "__main__":
unittest.main()