Files
crewAI/lib/crewai-a2a/tests/a2a/test_a2a_integration.py
Greyson LaLonde 080c22678a refactor: extract a2a into standalone crewai-a2a package
Move crewai.a2a into lib/crewai-a2a as its own workspace package, importable as crewai_a2a. The crewai[a2a] extra now pulls in crewai-a2a, which owns a2a-sdk, httpx-auth, httpx-sse, and aiocache.

crewai.a2a stays importable. Its __init__ is a compat shim that installs a meta-path finder routing crewai.a2a.* to crewai_a2a.*, so existing user code keeps working untouched.

a2a tests and cassettes moved alongside the package under lib/crewai-a2a/tests/. Added that path to the mypy and ruff per-file-ignores lists to match the other test dirs.
2026-04-14 22:21:31 +08:00

330 lines
9.7 KiB
Python

from __future__ import annotations
import os
import uuid
from a2a.client import ClientFactory
from a2a.types import AgentCard, Message, Part, Role, Task, TaskState, TextPart
from crewai.a2a.updates.polling.handler import PollingHandler
from crewai.a2a.updates.streaming.handler import StreamingHandler
import pytest
import pytest_asyncio
A2A_TEST_ENDPOINT = os.getenv("A2A_TEST_ENDPOINT", "http://localhost:9999")
@pytest_asyncio.fixture
async def a2a_client():
"""Create A2A client for test server."""
client = await ClientFactory.connect(A2A_TEST_ENDPOINT)
yield client
await client.close()
@pytest.fixture
def test_message() -> Message:
"""Create a simple test message."""
return Message(
role=Role.user,
parts=[Part(root=TextPart(text="What is 2 + 2?"))],
message_id=str(uuid.uuid4()),
)
@pytest_asyncio.fixture
async def agent_card(a2a_client) -> AgentCard:
"""Fetch the real agent card from the server."""
return await a2a_client.get_card()
class TestA2AAgentCardFetching:
"""Integration tests for agent card fetching."""
@pytest.mark.vcr()
@pytest.mark.asyncio
async def test_fetch_agent_card(self, a2a_client) -> None:
"""Test fetching an agent card from the server."""
card = await a2a_client.get_card()
assert card is not None
assert card.name == "GPT Assistant"
assert card.url is not None
assert card.capabilities is not None
assert card.capabilities.streaming is True
class TestA2APollingIntegration:
"""Integration tests for A2A polling handler."""
@pytest.mark.vcr()
@pytest.mark.asyncio
async def test_polling_completes_task(
self,
a2a_client,
test_message: Message,
agent_card: AgentCard,
) -> None:
"""Test that polling handler completes a task successfully."""
new_messages: list[Message] = []
result = await PollingHandler.execute(
client=a2a_client,
message=test_message,
new_messages=new_messages,
agent_card=agent_card,
polling_interval=0.5,
polling_timeout=30.0,
)
assert isinstance(result, dict)
assert result["status"] == TaskState.completed
assert result.get("result") is not None
assert "4" in result["result"]
class TestA2AStreamingIntegration:
"""Integration tests for A2A streaming handler."""
@pytest.mark.vcr()
@pytest.mark.asyncio
async def test_streaming_completes_task(
self,
a2a_client,
test_message: Message,
agent_card: AgentCard,
) -> None:
"""Test that streaming handler completes a task successfully."""
new_messages: list[Message] = []
result = await StreamingHandler.execute(
client=a2a_client,
message=test_message,
new_messages=new_messages,
agent_card=agent_card,
endpoint=agent_card.url,
)
assert isinstance(result, dict)
assert result["status"] == TaskState.completed
assert result.get("result") is not None
class TestA2ATaskOperations:
"""Integration tests for task operations."""
@pytest.mark.vcr()
@pytest.mark.asyncio
async def test_send_message_and_get_response(
self,
a2a_client,
test_message: Message,
) -> None:
"""Test sending a message and getting a response."""
from a2a.types import Task
final_task: Task | None = None
async for event in a2a_client.send_message(test_message):
if isinstance(event, tuple) and len(event) >= 1:
task, _ = event
if isinstance(task, Task):
final_task = task
assert final_task is not None
assert final_task.id is not None
assert final_task.status is not None
assert final_task.status.state == TaskState.completed
class TestA2APushNotificationHandler:
"""Tests for push notification handler.
These tests use mocks for the result store since webhook callbacks
are incoming requests that can't be recorded with VCR.
"""
@pytest.fixture
def mock_agent_card(self) -> AgentCard:
"""Create a minimal valid agent card for testing."""
from a2a.types import AgentCapabilities
return AgentCard(
name="Test Agent",
description="Test agent for push notification tests",
url="http://localhost:9999",
version="1.0.0",
capabilities=AgentCapabilities(streaming=True, push_notifications=True),
default_input_modes=["text"],
default_output_modes=["text"],
skills=[],
)
@pytest.fixture
def mock_task(self) -> Task:
"""Create a minimal valid task for testing."""
from a2a.types import Task, TaskStatus
return Task(
id="task-123",
context_id="ctx-123",
status=TaskStatus(state=TaskState.working),
)
@pytest.mark.asyncio
async def test_push_handler_waits_for_result(
self,
mock_agent_card: AgentCard,
mock_task,
) -> None:
"""Test that push handler waits for result from store."""
from unittest.mock import AsyncMock, MagicMock
from a2a.types import Task, TaskStatus
from crewai.a2a.updates.push_notifications.config import PushNotificationConfig
from crewai.a2a.updates.push_notifications.handler import (
PushNotificationHandler,
)
from pydantic import AnyHttpUrl
completed_task = Task(
id="task-123",
context_id="ctx-123",
status=TaskStatus(state=TaskState.completed),
history=[],
)
mock_store = MagicMock()
mock_store.wait_for_result = AsyncMock(return_value=completed_task)
async def mock_send_message(*args, **kwargs):
yield (mock_task, None)
mock_client = MagicMock()
mock_client.send_message = mock_send_message
config = PushNotificationConfig(
url=AnyHttpUrl("http://localhost:8080/a2a/callback"),
token="secret-token",
result_store=mock_store,
)
test_msg = Message(
role=Role.user,
parts=[Part(root=TextPart(text="What is 2+2?"))],
message_id="msg-001",
)
new_messages: list[Message] = []
result = await PushNotificationHandler.execute(
client=mock_client,
message=test_msg,
new_messages=new_messages,
agent_card=mock_agent_card,
config=config,
result_store=mock_store,
polling_timeout=30.0,
polling_interval=1.0,
endpoint=mock_agent_card.url,
)
mock_store.wait_for_result.assert_called_once_with(
task_id="task-123",
timeout=30.0,
poll_interval=1.0,
)
assert result["status"] == TaskState.completed
@pytest.mark.asyncio
async def test_push_handler_returns_failure_on_timeout(
self,
mock_agent_card: AgentCard,
) -> None:
"""Test that push handler returns failure when result store times out."""
from unittest.mock import AsyncMock, MagicMock
from a2a.types import Task, TaskStatus
from crewai.a2a.updates.push_notifications.config import PushNotificationConfig
from crewai.a2a.updates.push_notifications.handler import (
PushNotificationHandler,
)
from pydantic import AnyHttpUrl
mock_store = MagicMock()
mock_store.wait_for_result = AsyncMock(return_value=None)
working_task = Task(
id="task-456",
context_id="ctx-456",
status=TaskStatus(state=TaskState.working),
)
async def mock_send_message(*args, **kwargs):
yield (working_task, None)
mock_client = MagicMock()
mock_client.send_message = mock_send_message
config = PushNotificationConfig(
url=AnyHttpUrl("http://localhost:8080/a2a/callback"),
token="token",
result_store=mock_store,
)
test_msg = Message(
role=Role.user,
parts=[Part(root=TextPart(text="test"))],
message_id="msg-002",
)
new_messages: list[Message] = []
result = await PushNotificationHandler.execute(
client=mock_client,
message=test_msg,
new_messages=new_messages,
agent_card=mock_agent_card,
config=config,
result_store=mock_store,
polling_timeout=5.0,
polling_interval=0.5,
endpoint=mock_agent_card.url,
)
assert result["status"] == TaskState.failed
assert "timeout" in result.get("error", "").lower()
@pytest.mark.asyncio
async def test_push_handler_requires_config(
self,
mock_agent_card: AgentCard,
) -> None:
"""Test that push handler fails gracefully without config."""
from unittest.mock import MagicMock
from crewai.a2a.updates.push_notifications.handler import (
PushNotificationHandler,
)
mock_client = MagicMock()
test_msg = Message(
role=Role.user,
parts=[Part(root=TextPart(text="test"))],
message_id="msg-003",
)
new_messages: list[Message] = []
result = await PushNotificationHandler.execute(
client=mock_client,
message=test_msg,
new_messages=new_messages,
agent_card=mock_agent_card,
endpoint=mock_agent_card.url,
)
assert result["status"] == TaskState.failed
assert "config" in result.get("error", "").lower()