Files
crewAI/tests/test_allowed_agents.py

264 lines
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Python

"""Test allowed_agents functionality for hierarchical delegation."""
import pytest
from crewai.agent import Agent
from crewai.crew import Crew
from crewai.task import Task
from crewai.tools.agent_tools.agent_tools import AgentTools
@pytest.fixture
def agents():
"""Create test agents for delegation testing."""
manager = Agent(
role="Manager",
goal="Manage the team",
backstory="You are a team manager",
allow_delegation=True,
)
researcher = Agent(
role="Researcher",
goal="Research topics",
backstory="You are a researcher",
allow_delegation=False,
)
writer = Agent(
role="Writer",
goal="Write content",
backstory="You are a writer",
allow_delegation=False,
)
analyst = Agent(
role="Analyst",
goal="Analyze data",
backstory="You are an analyst",
allow_delegation=False,
)
return manager, researcher, writer, analyst
def test_allowed_agents_with_role_strings(agents):
"""Test allowed_agents with role strings."""
manager, researcher, writer, analyst = agents
manager.allowed_agents = ["Researcher", "Writer"]
agent_tools = AgentTools(agents=[researcher, writer, analyst])
tools = agent_tools.tools(delegating_agent=manager)
assert len(tools) == 2
delegate_tool = tools[0]
assert len(delegate_tool.agents) == 2
agent_roles = [agent.role for agent in delegate_tool.agents]
assert "Researcher" in agent_roles
assert "Writer" in agent_roles
assert "Analyst" not in agent_roles
def test_allowed_agents_with_agent_instances(agents):
"""Test allowed_agents with agent instances."""
manager, researcher, writer, analyst = agents
manager.allowed_agents = [researcher, analyst]
agent_tools = AgentTools(agents=[researcher, writer, analyst])
tools = agent_tools.tools(delegating_agent=manager)
assert len(tools) == 2
delegate_tool = tools[0]
assert len(delegate_tool.agents) == 2
assert researcher in delegate_tool.agents
assert analyst in delegate_tool.agents
assert writer not in delegate_tool.agents
def test_allowed_agents_mixed_types(agents):
"""Test allowed_agents with mixed role strings and agent instances."""
manager, researcher, writer, analyst = agents
manager.allowed_agents = ["Researcher", writer]
agent_tools = AgentTools(agents=[researcher, writer, analyst])
tools = agent_tools.tools(delegating_agent=manager)
delegate_tool = tools[0]
assert len(delegate_tool.agents) == 2
assert researcher in delegate_tool.agents
assert writer in delegate_tool.agents
assert analyst not in delegate_tool.agents
def test_allowed_agents_empty_list(agents):
"""Test allowed_agents with empty list (no delegation allowed)."""
manager, researcher, writer, analyst = agents
manager.allowed_agents = []
agent_tools = AgentTools(agents=[researcher, writer, analyst])
tools = agent_tools.tools(delegating_agent=manager)
assert len(tools) == 0
def test_allowed_agents_none(agents):
"""Test allowed_agents with None (delegate to all agents)."""
manager, researcher, writer, analyst = agents
manager.allowed_agents = None
agent_tools = AgentTools(agents=[researcher, writer, analyst])
tools = agent_tools.tools(delegating_agent=manager)
delegate_tool = tools[0]
assert len(delegate_tool.agents) == 3
assert researcher in delegate_tool.agents
assert writer in delegate_tool.agents
assert analyst in delegate_tool.agents
def test_allowed_agents_case_insensitive_matching(agents):
"""Test that role matching is case-insensitive."""
manager, researcher, writer, analyst = agents
manager.allowed_agents = ["researcher", "WRITER"]
agent_tools = AgentTools(agents=[researcher, writer, analyst])
tools = agent_tools.tools(delegating_agent=manager)
delegate_tool = tools[0]
assert len(delegate_tool.agents) == 2
assert researcher in delegate_tool.agents
assert writer in delegate_tool.agents
def test_allowed_agents_validation():
"""Test validation of allowed_agents field."""
agent = Agent(
role="Test",
goal="Test",
backstory="Test",
allowed_agents=["Role1", "Role2"]
)
assert agent.allowed_agents == ["Role1", "Role2"]
agent = Agent(
role="Test",
goal="Test",
backstory="Test",
allowed_agents=None
)
assert agent.allowed_agents is None
with pytest.raises(ValueError, match="allowed_agents must be a list or tuple of agent roles"):
Agent(
role="Test",
goal="Test",
backstory="Test",
allowed_agents="invalid"
)
with pytest.raises(ValueError, match="Each item in allowed_agents must be either a string"):
Agent(
role="Test",
goal="Test",
backstory="Test",
allowed_agents=[123]
)
def test_crew_integration_with_allowed_agents(agents):
"""Test integration with Crew class."""
manager, researcher, writer, analyst = agents
manager.allowed_agents = ["Researcher"]
task = Task(
description="Research AI trends",
expected_output="Research report",
agent=manager
)
crew = Crew(
agents=[manager, researcher, writer, analyst],
tasks=[task]
)
tools = crew._prepare_tools(manager, task, [])
delegation_tools = [tool for tool in tools if "Delegate work" in tool.name or "Ask question" in tool.name]
if delegation_tools:
delegate_tool = next(tool for tool in delegation_tools if "Delegate work" in tool.name)
assert len(delegate_tool.agents) == 1
assert delegate_tool.agents[0].role == "Researcher"
def test_backward_compatibility_no_allowed_agents(agents):
"""Test that agents without allowed_agents work as before."""
manager, researcher, writer, analyst = agents
assert manager.allowed_agents is None
agent_tools = AgentTools(agents=[researcher, writer, analyst])
tools = agent_tools.tools(delegating_agent=manager)
assert len(tools) == 2
delegate_tool = tools[0]
assert len(delegate_tool.agents) == 3
assert researcher in delegate_tool.agents
assert writer in delegate_tool.agents
assert analyst in delegate_tool.agents
def test_no_delegating_agent_parameter(agents):
"""Test AgentTools.tools() without delegating_agent parameter."""
manager, researcher, writer, analyst = agents
agent_tools = AgentTools(agents=[researcher, writer, analyst])
tools = agent_tools.tools() # No delegating_agent parameter
assert len(tools) == 2
delegate_tool = tools[0]
assert len(delegate_tool.agents) == 3
def test_allowed_agents_with_nonexistent_role(agents):
"""Test allowed_agents with role that doesn't exist in available agents."""
manager, researcher, writer, analyst = agents
manager.allowed_agents = ["Researcher", "NonExistentRole"]
agent_tools = AgentTools(agents=[researcher, writer, analyst])
tools = agent_tools.tools(delegating_agent=manager)
delegate_tool = tools[0]
assert len(delegate_tool.agents) == 1
assert researcher in delegate_tool.agents
def test_allowed_agents_with_nonexistent_instance(agents):
"""Test allowed_agents with agent instance that doesn't exist in available agents."""
manager, researcher, writer, analyst = agents
other_agent = Agent(
role="Other",
goal="Other goal",
backstory="Other backstory"
)
manager.allowed_agents = [researcher, other_agent]
agent_tools = AgentTools(agents=[researcher, writer, analyst])
tools = agent_tools.tools(delegating_agent=manager)
delegate_tool = tools[0]
assert len(delegate_tool.agents) == 1
assert researcher in delegate_tool.agents
assert other_agent not in delegate_tool.agents