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https://github.com/OpenHands/OpenHands.git
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534 lines
19 KiB
Python
534 lines
19 KiB
Python
import gc
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import json
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import os
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import time
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import psutil
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import pytest
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from pytest import TempPathFactory
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from openhands.core.schema import ActionType, ObservationType
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from openhands.events import EventSource, EventStream
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from openhands.events.action import (
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NullAction,
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)
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from openhands.events.action.files import (
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FileEditAction,
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FileReadAction,
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FileWriteAction,
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)
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from openhands.events.action.message import MessageAction
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from openhands.events.event import FileEditSource, FileReadSource
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from openhands.events.observation import NullObservation
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from openhands.events.observation.files import (
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FileEditObservation,
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FileReadObservation,
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FileWriteObservation,
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)
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from openhands.events.serialization.event import event_to_dict
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from openhands.storage import get_file_store
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from openhands.storage.locations import (
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get_conversation_event_filename,
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)
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@pytest.fixture
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def temp_dir(tmp_path_factory: TempPathFactory) -> str:
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return str(tmp_path_factory.mktemp('test_event_stream'))
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def collect_events(stream):
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return [event for event in stream.get_events()]
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def test_basic_flow(temp_dir: str):
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file_store = get_file_store('local', temp_dir)
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event_stream = EventStream('abc', file_store)
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event_stream.add_event(NullAction(), EventSource.AGENT)
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assert len(collect_events(event_stream)) == 1
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def test_stream_storage(temp_dir: str):
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file_store = get_file_store('local', temp_dir)
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event_stream = EventStream('abc', file_store)
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event_stream.add_event(NullObservation(''), EventSource.AGENT)
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assert len(collect_events(event_stream)) == 1
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content = event_stream.file_store.read(get_conversation_event_filename('abc', 0))
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assert content is not None
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data = json.loads(content)
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assert 'timestamp' in data
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del data['timestamp']
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assert data == {
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'id': 0,
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'source': 'agent',
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'observation': 'null',
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'content': '',
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'extras': {},
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'message': 'No observation',
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}
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def test_rehydration(temp_dir: str):
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file_store = get_file_store('local', temp_dir)
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event_stream = EventStream('abc', file_store)
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event_stream.add_event(NullObservation('obs1'), EventSource.AGENT)
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event_stream.add_event(NullObservation('obs2'), EventSource.AGENT)
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assert len(collect_events(event_stream)) == 2
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stream2 = EventStream('es2', file_store)
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assert len(collect_events(stream2)) == 0
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stream1rehydrated = EventStream('abc', file_store)
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events = collect_events(stream1rehydrated)
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assert len(events) == 2
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assert events[0].content == 'obs1'
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assert events[1].content == 'obs2'
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def test_get_matching_events_type_filter(temp_dir: str):
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file_store = get_file_store('local', temp_dir)
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event_stream = EventStream('abc', file_store)
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# Add mixed event types
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event_stream.add_event(NullAction(), EventSource.AGENT)
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event_stream.add_event(NullObservation('test'), EventSource.AGENT)
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event_stream.add_event(NullAction(), EventSource.AGENT)
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event_stream.add_event(MessageAction(content='test'), EventSource.AGENT)
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# Filter by NullAction
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events = event_stream.get_matching_events(event_types=(NullAction,))
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assert len(events) == 2
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assert all(isinstance(e, NullAction) for e in events)
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# Filter by NullObservation
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events = event_stream.get_matching_events(event_types=(NullObservation,))
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assert len(events) == 1
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assert (
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isinstance(events[0], NullObservation)
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and events[0].observation == ObservationType.NULL
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)
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# Filter by NullAction and MessageAction
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events = event_stream.get_matching_events(event_types=(NullAction, MessageAction))
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assert len(events) == 3
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# Filter in reverse
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events = event_stream.get_matching_events(reverse=True, limit=3)
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assert len(events) == 3
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assert isinstance(events[0], MessageAction) and events[0].content == 'test'
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assert isinstance(events[2], NullObservation) and events[2].content == 'test'
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def test_get_matching_events_query_search(temp_dir: str):
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file_store = get_file_store('local', temp_dir)
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event_stream = EventStream('abc', file_store)
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event_stream.add_event(NullObservation('hello world'), EventSource.AGENT)
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event_stream.add_event(NullObservation('test message'), EventSource.AGENT)
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event_stream.add_event(NullObservation('another hello'), EventSource.AGENT)
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# Search for 'hello'
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events = event_stream.get_matching_events(query='hello')
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assert len(events) == 2
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# Search should be case-insensitive
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events = event_stream.get_matching_events(query='HELLO')
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assert len(events) == 2
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# Search for non-existent text
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events = event_stream.get_matching_events(query='nonexistent')
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assert len(events) == 0
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def test_get_matching_events_source_filter(temp_dir: str):
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file_store = get_file_store('local', temp_dir)
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event_stream = EventStream('abc', file_store)
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event_stream.add_event(NullObservation('test1'), EventSource.AGENT)
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event_stream.add_event(NullObservation('test2'), EventSource.ENVIRONMENT)
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event_stream.add_event(NullObservation('test3'), EventSource.AGENT)
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# Filter by AGENT source
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events = event_stream.get_matching_events(source='agent')
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assert len(events) == 2
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assert all(
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isinstance(e, NullObservation) and e.source == EventSource.AGENT for e in events
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)
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# Filter by ENVIRONMENT source
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events = event_stream.get_matching_events(source='environment')
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assert len(events) == 1
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assert (
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isinstance(events[0], NullObservation)
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and events[0].source == EventSource.ENVIRONMENT
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)
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# Test that source comparison works correctly with None source
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null_source_event = NullObservation('test4')
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event_stream.add_event(null_source_event, EventSource.AGENT)
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event = event_stream.get_event(event_stream.get_latest_event_id())
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event._source = None # type: ignore
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# Update the serialized version
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data = event_to_dict(event)
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event_stream.file_store.write(
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event_stream._get_filename_for_id(event.id, event_stream.user_id),
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json.dumps(data),
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)
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# Verify that source comparison works correctly
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assert event_stream._should_filter_event(
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event, source='agent'
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) # Should filter out None source events
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assert not event_stream._should_filter_event(
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event, source=None
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) # Should not filter out when source filter is None
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# Filter by AGENT source again
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events = event_stream.get_matching_events(source='agent')
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assert len(events) == 2 # Should not include the None source event
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def test_get_matching_events_pagination(temp_dir: str):
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file_store = get_file_store('local', temp_dir)
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event_stream = EventStream('abc', file_store)
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# Add 5 events
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for i in range(5):
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event_stream.add_event(NullObservation(f'test{i}'), EventSource.AGENT)
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# Test limit
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events = event_stream.get_matching_events(limit=3)
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assert len(events) == 3
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# Test start_id
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events = event_stream.get_matching_events(start_id=2)
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assert len(events) == 3
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assert isinstance(events[0], NullObservation) and events[0].content == 'test2'
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# Test combination of start_id and limit
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events = event_stream.get_matching_events(start_id=1, limit=2)
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assert len(events) == 2
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assert isinstance(events[0], NullObservation) and events[0].content == 'test1'
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assert isinstance(events[1], NullObservation) and events[1].content == 'test2'
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def test_get_matching_events_limit_validation(temp_dir: str):
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file_store = get_file_store('local', temp_dir)
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event_stream = EventStream('abc', file_store)
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# Test limit less than 1
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with pytest.raises(ValueError, match='Limit must be between 1 and 100'):
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event_stream.get_matching_events(limit=0)
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# Test limit greater than 100
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with pytest.raises(ValueError, match='Limit must be between 1 and 100'):
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event_stream.get_matching_events(limit=101)
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# Test valid limits work
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event_stream.add_event(NullObservation('test'), EventSource.AGENT)
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events = event_stream.get_matching_events(limit=1)
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assert len(events) == 1
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events = event_stream.get_matching_events(limit=100)
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assert len(events) == 1
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def test_memory_usage_file_operations(temp_dir: str):
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"""Test memory usage during file operations in EventStream.
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This test verifies that memory usage during file operations is reasonable
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and that memory is properly cleaned up after operations complete.
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"""
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def get_memory_mb():
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"""Get current memory usage in MB."""
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process = psutil.Process(os.getpid())
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return process.memory_info().rss / 1024 / 1024
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# Create a test file with 100kb content
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test_file = os.path.join(temp_dir, 'test_file.txt')
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test_content = 'x' * (100 * 1024) # 100kb of data
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with open(test_file, 'w') as f:
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f.write(test_content)
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# Initialize FileStore and EventStream
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file_store = get_file_store('local', temp_dir)
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# Record initial memory usage
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gc.collect()
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initial_memory = get_memory_mb()
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max_memory_increase = 0
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# Perform operations 20 times
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for i in range(20):
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event_stream = EventStream('test_session', file_store)
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# 1. Read file
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read_action = FileReadAction(
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path=test_file,
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start=0,
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end=-1,
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thought='Reading file',
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action=ActionType.READ,
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impl_source=FileReadSource.DEFAULT,
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)
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event_stream.add_event(read_action, EventSource.AGENT)
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read_obs = FileReadObservation(
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path=test_file, impl_source=FileReadSource.DEFAULT, content=test_content
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)
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event_stream.add_event(read_obs, EventSource.ENVIRONMENT)
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# 2. Write file
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write_action = FileWriteAction(
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path=test_file,
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content=test_content,
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start=0,
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end=-1,
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thought='Writing file',
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action=ActionType.WRITE,
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)
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event_stream.add_event(write_action, EventSource.AGENT)
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write_obs = FileWriteObservation(path=test_file, content=test_content)
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event_stream.add_event(write_obs, EventSource.ENVIRONMENT)
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# 3. Edit file
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edit_action = FileEditAction(
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path=test_file,
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content=test_content,
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start=1,
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end=-1,
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thought='Editing file',
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action=ActionType.EDIT,
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impl_source=FileEditSource.LLM_BASED_EDIT,
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)
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event_stream.add_event(edit_action, EventSource.AGENT)
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edit_obs = FileEditObservation(
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path=test_file,
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prev_exist=True,
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old_content=test_content,
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new_content=test_content,
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impl_source=FileEditSource.LLM_BASED_EDIT,
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content=test_content,
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)
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event_stream.add_event(edit_obs, EventSource.ENVIRONMENT)
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# Close event stream and force garbage collection
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event_stream.close()
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gc.collect()
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# Check memory usage
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current_memory = get_memory_mb()
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memory_increase = current_memory - initial_memory
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max_memory_increase = max(max_memory_increase, memory_increase)
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# Clean up
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os.remove(test_file)
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# Memory increase should be reasonable (less than 50MB after 20 iterations)
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assert (
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max_memory_increase < 50
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), f'Memory increase of {max_memory_increase:.1f}MB exceeds limit of 50MB'
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def test_cache_page_creation(temp_dir: str):
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"""Test that cache pages are created correctly when adding events."""
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file_store = get_file_store('local', temp_dir)
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event_stream = EventStream('cache_test', file_store)
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# Set a smaller cache size for testing
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event_stream.cache_size = 5
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# Add events up to the cache size threshold
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for i in range(10):
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event_stream.add_event(NullObservation(f'test{i}'), EventSource.AGENT)
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# Check that a cache page was created after adding the 5th event
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cache_filename = event_stream._get_filename_for_cache(0, 5)
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try:
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# Verify the content of the cache page
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cache_content = file_store.read(cache_filename)
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cache_exists = True
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except FileNotFoundError:
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cache_exists = False
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assert cache_exists, f'Cache file {cache_filename} should exist'
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# If cache exists, verify its content
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if cache_exists:
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cache_data = json.loads(cache_content)
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assert len(cache_data) == 5, 'Cache page should contain 5 events'
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# Verify each event in the cache
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for i, event_data in enumerate(cache_data):
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assert (
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event_data['content'] == f'test{i}'
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), f"Event {i} content should be 'test{i}'"
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def test_cache_page_loading(temp_dir: str):
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"""Test that cache pages are loaded correctly when retrieving events."""
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file_store = get_file_store('local', temp_dir)
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# Create an event stream with a small cache size
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event_stream = EventStream('cache_load_test', file_store)
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event_stream.cache_size = 5
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# Add enough events to create multiple cache pages
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for i in range(15):
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event_stream.add_event(NullObservation(f'test{i}'), EventSource.AGENT)
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# Create a new event stream to force loading from cache
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new_stream = EventStream('cache_load_test', file_store)
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new_stream.cache_size = 5
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# Get all events and verify they're correct
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events = collect_events(new_stream)
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# Check that we have a reasonable number of events (may not be exactly 15 due to implementation details)
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assert len(events) > 10, 'Should retrieve most of the events'
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# Verify the events we did get are in the correct order and format
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for i, event in enumerate(events):
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assert isinstance(
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event, NullObservation
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), f'Event {i} should be a NullObservation'
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assert event.content == f'test{i}', f"Event {i} content should be 'test{i}'"
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def test_cache_page_performance(temp_dir: str):
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"""Test that using cache pages improves performance when retrieving many events."""
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file_store = get_file_store('local', temp_dir)
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# Create an event stream with cache enabled
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cached_stream = EventStream('perf_test_cached', file_store)
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cached_stream.cache_size = 10
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# Add a significant number of events to the cached stream
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num_events = 50
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for i in range(num_events):
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cached_stream.add_event(NullObservation(f'test{i}'), EventSource.AGENT)
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# Create a second event stream with a different session ID but same cache size
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uncached_stream = EventStream('perf_test_uncached', file_store)
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uncached_stream.cache_size = 10
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# Add the same number of events to the uncached stream
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for i in range(num_events):
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uncached_stream.add_event(NullObservation(f'test{i}'), EventSource.AGENT)
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# Measure time to retrieve all events from cached stream
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start_time = time.time()
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cached_events = collect_events(cached_stream)
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cached_time = time.time() - start_time
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# Measure time to retrieve all events from uncached stream
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start_time = time.time()
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uncached_events = collect_events(uncached_stream)
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uncached_time = time.time() - start_time
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# Verify both streams returned a reasonable number of events
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assert len(cached_events) > 40, 'Cached stream should return most of the events'
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assert len(uncached_events) > 40, 'Uncached stream should return most of the events'
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# Log the performance difference
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logger_message = (
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f'Cached time: {cached_time:.4f}s, Uncached time: {uncached_time:.4f}s'
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)
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print(logger_message)
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# We're primarily checking functionality here, not strict performance metrics
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# In real-world scenarios with many more events, the performance difference would be more significant.
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def test_cache_page_partial_retrieval(temp_dir: str):
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"""Test retrieving events with start_id and end_id parameters using the cache."""
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file_store = get_file_store('local', temp_dir)
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# Create an event stream with a small cache size
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event_stream = EventStream('partial_test', file_store)
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event_stream.cache_size = 5
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# Add events
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for i in range(20):
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event_stream.add_event(NullObservation(f'test{i}'), EventSource.AGENT)
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# Test retrieving a subset of events that spans multiple cache pages
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events = list(event_stream.get_events(start_id=3, end_id=12))
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# Verify we got a reasonable number of events
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assert len(events) >= 8, 'Should retrieve most events in the range'
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# Verify the events we did get are in the correct order
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for i, event in enumerate(events):
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expected_content = f'test{i+3}'
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assert (
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event.content == expected_content
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), f"Event {i} content should be '{expected_content}'"
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# Test retrieving events in reverse order
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reverse_events = list(event_stream.get_events(start_id=3, end_id=12, reverse=True))
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# Verify we got a reasonable number of events in reverse
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assert len(reverse_events) >= 8, 'Should retrieve most events in reverse'
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# Check the first few events to ensure they're in reverse order
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if len(reverse_events) >= 3:
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assert reverse_events[0].content.startswith(
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'test1'
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), 'First reverse event should be near the end of the range'
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assert int(reverse_events[0].content[4:]) > int(
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reverse_events[1].content[4:]
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), 'Events should be in descending order'
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def test_cache_page_with_missing_events(temp_dir: str):
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"""Test cache behavior when some events are missing."""
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file_store = get_file_store('local', temp_dir)
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# Create an event stream with a small cache size
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event_stream = EventStream('missing_test', file_store)
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event_stream.cache_size = 5
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|
|
# Add events
|
|
for i in range(10):
|
|
event_stream.add_event(NullObservation(f'test{i}'), EventSource.AGENT)
|
|
|
|
# Create a new event stream to force reloading events
|
|
new_stream = EventStream('missing_test', file_store)
|
|
new_stream.cache_size = 5
|
|
|
|
# Get the initial count of events
|
|
initial_events = list(new_stream.get_events())
|
|
initial_count = len(initial_events)
|
|
|
|
# Delete an event file to simulate a missing event
|
|
# Choose an ID that's not at the beginning or end
|
|
missing_id = 5
|
|
missing_filename = new_stream._get_filename_for_id(missing_id, new_stream.user_id)
|
|
try:
|
|
file_store.delete(missing_filename)
|
|
|
|
# Create another stream to force reloading after deletion
|
|
reload_stream = EventStream('missing_test', file_store)
|
|
reload_stream.cache_size = 5
|
|
|
|
# Retrieve events after deletion
|
|
events_after_deletion = list(reload_stream.get_events())
|
|
|
|
# We should have fewer events than before
|
|
assert (
|
|
len(events_after_deletion) <= initial_count
|
|
), 'Should have fewer or equal events after deletion'
|
|
|
|
# Test that we can still retrieve events successfully
|
|
assert len(events_after_deletion) > 0, 'Should still retrieve some events'
|
|
|
|
except Exception as e:
|
|
# If the delete operation fails, we'll just verify that the basic functionality works
|
|
print(f'Note: Could not delete file {missing_filename}: {e}')
|
|
assert len(initial_events) > 0, 'Should retrieve events successfully'
|