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Test EventBus and event hooks.
Tests cover:
- Publish-Subscribe mechanics
- Multiple subscribers
- Exception handling
- Event payloads (TaskEvent, SkillExecutionEvent)
- Event filtering
"""
import pytest
from core.auto_dev.event_hooks import EventBus, SkillExecutionEvent, TaskEvent
# =============================================================================
# Publish-Subscribe Tests
# =============================================================================
class TestEventBusPublishSubscribe:
"""Test EventBus.publish() delivers events to subscribers."""
def test_emit_task_fail_calls_all_handlers(self):
"""Test emit_task_fail() calls all registered handlers."""
bus = EventBus()
handler_calls = []
async def handler1(event):
handler_calls.append(("handler1", event.episode_id))
async def handler2(event):
handler_calls.append(("handler2", event.episode_id))
bus.on_task_fail(handler1)
bus.on_task_fail(handler2)
event = TaskEvent(
episode_id="ep-001",
agent_id="agent-001",
tenant_id="tenant-001",
task_description="Test task",
outcome="failure",
)
import asyncio
asyncio.run(bus.emit_task_fail(event))
assert len(handler_calls) == 2
assert handler_calls[0] == ("handler1", "ep-001")
assert handler_calls[1] == ("handler2", "ep-001")
def test_emit_task_success_calls_all_handlers(self):
"""Test emit_task_success() calls all registered handlers."""
bus = EventBus()
handler_calls = []
async def handler(event):
handler_calls.append(event.task_description)
bus.on_task_success(handler)
event = TaskEvent(
episode_id="ep-001",
agent_id="agent-001",
tenant_id="tenant-001",
task_description="Successful task",
outcome="success",
)
import asyncio
asyncio.run(bus.emit_task_success(event))
assert len(handler_calls) == 1
assert handler_calls[0] == "Successful task"
def test_emit_skill_execution_calls_all_handlers(self):
"""Test emit_skill_execution() calls all registered handlers."""
bus = EventBus()
handler_calls = []
async def handler(event):
handler_calls.append(("skill", event.skill_name, event.success))
bus.on_skill_execution(handler)
event = SkillExecutionEvent(
execution_id="exec-001",
agent_id="agent-001",
tenant_id="tenant-001",
skill_id="skill-001",
skill_name="test_skill",
success=True,
)
import asyncio
asyncio.run(bus.emit_skill_execution(event))
assert len(handler_calls) == 1
assert handler_calls[0] == ("skill", "test_skill", True)
def test_verify_event_payload_delivery(self):
"""Test event payload is delivered correctly to handlers."""
bus = EventBus()
received_events = []
async def handler(event):
received_events.append(event)
bus.on_task_fail(handler)
event = TaskEvent(
episode_id="ep-001",
agent_id="agent-001",
tenant_id="tenant-001",
task_description="Test task",
error_trace="Error: something failed",
outcome="failure",
metadata={"key": "value"},
)
import asyncio
asyncio.run(bus.emit_task_fail(event))
assert len(received_events) == 1
received = received_events[0]
assert received.episode_id == "ep-001"
assert received.agent_id == "agent-001"
assert received.tenant_id == "tenant-001"
assert received.task_description == "Test task"
assert received.error_trace == "Error: something failed"
assert received.outcome == "failure"
assert received.metadata == {"key": "value"}
# =============================================================================
# Multiple Subscribers Tests
# =============================================================================
class TestEventBusMultipleSubscribers:
"""Test multiple subscribers receive same event."""
def test_multiple_handlers_receive_event(self):
"""Test all handlers receive the same event."""
bus = EventBus()
handler1_calls = []
handler2_calls = []
handler3_calls = []
async def handler1(event):
handler1_calls.append(event.episode_id)
async def handler2(event):
handler2_calls.append(event.episode_id)
async def handler3(event):
handler3_calls.append(event.episode_id)
bus.on_task_fail(handler1)
bus.on_task_fail(handler2)
bus.on_task_fail(handler3)
event = TaskEvent(
episode_id="ep-001",
agent_id="agent-001",
tenant_id="tenant-001",
task_description="Test",
outcome="failure",
)
import asyncio
asyncio.run(bus.emit_task_fail(event))
assert len(handler1_calls) == 1
assert len(handler2_calls) == 1
assert len(handler3_calls) == 1
assert handler1_calls[0] == "ep-001"
assert handler2_calls[0] == "ep-001"
assert handler3_calls[0] == "ep-001"
def test_handler_execution_order(self):
"""Test handlers execute in registration order."""
bus = EventBus()
execution_order = []
async def handler1(event):
execution_order.append(1)
async def handler2(event):
execution_order.append(2)
async def handler3(event):
execution_order.append(3)
# Register in order 1, 2, 3
bus.on_task_fail(handler1)
bus.on_task_fail(handler2)
bus.on_task_fail(handler3)
event = TaskEvent(
episode_id="ep-001",
agent_id="agent-001",
tenant_id="tenant-001",
task_description="Test",
outcome="failure",
)
import asyncio
asyncio.run(bus.emit_task_fail(event))
assert execution_order == [1, 2, 3]
def test_different_event_types_separate_handlers(self):
"""Test handlers for different event types don't interfere."""
bus = EventBus()
fail_calls = []
success_calls = []
skill_calls = []
async def fail_handler(event):
fail_calls.append("fail")
async def success_handler(event):
success_calls.append("success")
async def skill_handler(event):
skill_calls.append("skill")
bus.on_task_fail(fail_handler)
bus.on_task_success(success_handler)
bus.on_skill_execution(skill_handler)
fail_event = TaskEvent(
episode_id="ep-001",
agent_id="agent-001",
tenant_id="tenant-001",
task_description="Test",
outcome="failure",
)
import asyncio
asyncio.run(bus.emit_task_fail(fail_event))
assert len(fail_calls) == 1
assert len(success_calls) == 0
assert len(skill_calls) == 0
# =============================================================================
# Exception Handling Tests
# =============================================================================
class TestEventBusExceptionHandling:
"""Test subscriber exceptions don't crash event bus."""
def test_handler_exception_doesnt_crash_bus(self):
"""Test exception in handler doesn't crash event bus."""
bus = EventBus()
handler1_calls = []
handler2_calls = []
async def handler1(event):
handler1_calls.append("handler1")
raise ValueError("Simulated error in handler1")
async def handler2(event):
handler2_calls.append("handler2")
bus.on_task_fail(handler1)
bus.on_task_fail(handler2)
event = TaskEvent(
episode_id="ep-001",
agent_id="agent-001",
tenant_id="tenant-001",
task_description="Test",
outcome="failure",
)
import asyncio
# Should not raise exception
asyncio.run(bus.emit_task_fail(event))
# Both handlers should have been called
assert len(handler1_calls) == 1
assert len(handler2_calls) == 1
def test_multiple_handler_exceptions(self):
"""Test multiple handler exceptions are handled gracefully."""
bus = EventBus()
handler_calls = []
async def handler1(event):
handler_calls.append("h1")
raise Exception("Error 1")
async def handler2(event):
handler_calls.append("h2")
raise ValueError("Error 2")
async def handler3(event):
handler_calls.append("h3")
# No error
bus.on_task_fail(handler1)
bus.on_task_fail(handler2)
bus.on_task_fail(handler3)
event = TaskEvent(
episode_id="ep-001",
agent_id="agent-001",
tenant_id="tenant-001",
task_description="Test",
outcome="failure",
)
import asyncio
asyncio.run(bus.emit_task_fail(event))
assert handler_calls == ["h1", "h2", "h3"]
def test_exception_logged_with_handler_name(self, caplog):
"""Test exceptions are logged with handler name."""
import logging
bus = EventBus()
async def failing_handler(event):
raise RuntimeError("Test error")
bus.on_task_fail(failing_handler)
event = TaskEvent(
episode_id="ep-001",
agent_id="agent-001",
tenant_id="tenant-001",
task_description="Test",
outcome="failure",
)
import asyncio
with caplog.at_level(logging.ERROR):
asyncio.run(bus.emit_task_fail(event))
# Check error was logged
assert any("failing_handler" in record.message for record in caplog.records)
assert any("Test error" in record.message for record in caplog.records)
# =============================================================================
# Event Payload Tests
# =============================================================================
class TestEventBusEventPayloads:
"""Test TaskEvent and SkillExecutionEvent payloads."""
def test_task_event_fields(self):
"""Test TaskEvent fields (episode_id, agent_id, error_trace, outcome)."""
event = TaskEvent(
episode_id="ep-001",
agent_id="agent-001",
tenant_id="tenant-001",
task_description="Process data",
error_trace="ValueError: invalid format",
outcome="failure",
metadata={"retry_count": 3},
)
assert event.episode_id == "ep-001"
assert event.agent_id == "agent-001"
assert event.tenant_id == "tenant-001"
assert event.task_description == "Process data"
assert event.error_trace == "ValueError: invalid format"
assert event.outcome == "failure"
assert event.metadata == {"retry_count": 3}
def test_task_event_default_values(self):
"""Test TaskEvent default values."""
event = TaskEvent(
episode_id="ep-001",
agent_id="agent-001",
tenant_id="tenant-001",
)
assert event.task_description == ""
assert event.error_trace is None
assert event.outcome == ""
assert event.metadata == {}
def test_skill_execution_event_fields(self):
"""Test SkillExecutionEvent fields (execution_id, skill_id, token_usage)."""
event = SkillExecutionEvent(
execution_id="exec-001",
agent_id="agent-001",
tenant_id="tenant-001",
skill_id="skill-001",
skill_name="data_processor",
execution_seconds=5.2,
token_usage=3500,
success=True,
output="Processed 100 records",
metadata={"input_size": 100},
)
assert event.execution_id == "exec-001"
assert event.agent_id == "agent-001"
assert event.tenant_id == "tenant-001"
assert event.skill_id == "skill-001"
assert event.skill_name == "data_processor"
assert event.execution_seconds == 5.2
assert event.token_usage == 3500
assert event.success is True
assert event.output == "Processed 100 records"
assert event.metadata == {"input_size": 100}
def test_skill_execution_event_default_values(self):
"""Test SkillExecutionEvent default values."""
event = SkillExecutionEvent(
execution_id="exec-001",
agent_id="agent-001",
tenant_id="tenant-001",
skill_id="skill-001",
)
assert event.skill_name == ""
assert event.execution_seconds == 0.0
assert event.token_usage == 0
assert event.success is False
assert event.output == ""
assert event.metadata == {}
def test_metadata_dictionary_handling(self):
"""Test metadata dictionary can store arbitrary data."""
event = TaskEvent(
episode_id="ep-001",
agent_id="agent-001",
tenant_id="tenant-001",
metadata={
"nested": {"key": "value"},
"list": [1, 2, 3],
"number": 42,
"boolean": True,
},
)
assert event.metadata["nested"]["key"] == "value"
assert event.metadata["list"] == [1, 2, 3]
assert event.metadata["number"] == 42
assert event.metadata["boolean"] is True
# =============================================================================
# Event Filtering Tests
# =============================================================================
class TestEventBusEventFiltering:
"""Test event filtering by agent_id and tenant_id."""
def test_filter_by_agent_id(self):
"""Test filtering events by agent_id in handler."""
bus = EventBus()
agent1_events = []
agent2_events = []
async def agent1_handler(event):
if event.agent_id == "agent-001":
agent1_events.append(event)
async def agent2_handler(event):
if event.agent_id == "agent-002":
agent2_events.append(event)
bus.on_task_fail(agent1_handler)
bus.on_task_fail(agent2_handler)
event1 = TaskEvent(
episode_id="ep-001",
agent_id="agent-001",
tenant_id="tenant-001",
task_description="Test",
outcome="failure",
)
event2 = TaskEvent(
episode_id="ep-002",
agent_id="agent-002",
tenant_id="tenant-001",
task_description="Test",
outcome="failure",
)
import asyncio
asyncio.run(bus.emit_task_fail(event1))
asyncio.run(bus.emit_task_fail(event2))
assert len(agent1_events) == 1
assert len(agent2_events) == 1
assert agent1_events[0].agent_id == "agent-001"
assert agent2_events[0].agent_id == "agent-002"
def test_filter_by_tenant_id(self):
"""Test filtering events by tenant_id in handler."""
bus = EventBus()
tenant1_events = []
tenant2_events = []
async def tenant1_handler(event):
if event.tenant_id == "tenant-001":
tenant1_events.append(event)
async def tenant2_handler(event):
if event.tenant_id == "tenant-002":
tenant2_events.append(event)
bus.on_task_fail(tenant1_handler)
bus.on_task_fail(tenant2_handler)
event1 = TaskEvent(
episode_id="ep-001",
agent_id="agent-001",
tenant_id="tenant-001",
task_description="Test",
outcome="failure",
)
event2 = TaskEvent(
episode_id="ep-002",
agent_id="agent-002",
tenant_id="tenant-002",
task_description="Test",
outcome="failure",
)
import asyncio
asyncio.run(bus.emit_task_fail(event1))
asyncio.run(bus.emit_task_fail(event2))
assert len(tenant1_events) == 1
assert len(tenant2_events) == 1
assert tenant1_events[0].tenant_id == "tenant-001"
assert tenant2_events[0].tenant_id == "tenant-002"
def test_filter_by_event_type(self):
"""Test filtering by event type (success vs failure)."""
bus = EventBus()
failures = []
successes = []
async def failure_handler(event):
if event.outcome == "failure":
failures.append(event)
async def success_handler(event):
if event.outcome == "success":
successes.append(event)
bus.on_task_fail(failure_handler)
bus.on_task_success(success_handler)
fail_event = TaskEvent(
episode_id="ep-001",
agent_id="agent-001",
tenant_id="tenant-001",
task_description="Test",
outcome="failure",
)
success_event = TaskEvent(
episode_id="ep-002",
agent_id="agent-001",
tenant_id="tenant-001",
task_description="Test",
outcome="success",
)
import asyncio
asyncio.run(bus.emit_task_fail(fail_event))
asyncio.run(bus.emit_task_success(success_event))
assert len(failures) == 1
assert len(successes) == 1
assert failures[0].outcome == "failure"
assert successes[0].outcome == "success"
# =============================================================================
# EventBus Clear Tests
# =============================================================================
class TestEventBusClear:
"""Test EventBus.clear() removes all handlers."""
def test_clear_removes_all_handlers(self):
"""Test clear() removes all registered handlers."""
bus = EventBus()
handler_calls = []
async def handler1(event):
handler_calls.append("h1")
async def handler2(event):
handler_calls.append("h2")
bus.on_task_fail(handler1)
bus.on_task_fail(handler2)
# Clear all handlers
bus.clear()
event = TaskEvent(
episode_id="ep-001",
agent_id="agent-001",
tenant_id="tenant-001",
task_description="Test",
outcome="failure",
)
import asyncio
asyncio.run(bus.emit_task_fail(event))
# No handlers should be called
assert len(handler_calls) == 0
def test_clear_all_event_types(self):
"""Test clear() removes handlers for all event types."""
bus = EventBus()
calls = []
async def fail_handler(event):
calls.append("fail")
async def success_handler(event):
calls.append("success")
async def skill_handler(event):
calls.append("skill")
bus.on_task_fail(fail_handler)
bus.on_task_success(success_handler)
bus.on_skill_execution(skill_handler)
bus.clear()
import asyncio
asyncio.run(bus.emit_task_fail(
TaskEvent(episode_id="ep-001", agent_id="agent-001", tenant_id="tenant-001")
))
asyncio.run(bus.emit_task_success(
TaskEvent(episode_id="ep-001", agent_id="agent-001", tenant_id="tenant-001")
))
asyncio.run(bus.emit_skill_execution(
SkillExecutionEvent(
execution_id="exec-001",
agent_id="agent-001",
tenant_id="tenant-001",
skill_id="skill-001",
)
))
assert len(calls) == 0
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