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from typing import TypedDict
from openhands.controller.agent import Agent
from openhands.controller.state.state import State
from openhands.core.config import AgentConfig
from openhands.core.schema import AgentState
from openhands.events.action import (
Action,
AgentFinishAction,
AgentRejectAction,
BrowseInteractiveAction,
BrowseURLAction,
CmdRunAction,
FileReadAction,
FileWriteAction,
MessageAction,
)
from openhands.events.observation import (
AgentStateChangedObservation,
BrowserOutputObservation,
CmdOutputMetadata,
CmdOutputObservation,
FileReadObservation,
FileWriteObservation,
NullObservation,
Observation,
)
from openhands.events.serialization.event import event_to_dict
from openhands.llm.llm import LLM
"""
FIXME: There are a few problems this surfaced
* FileWrites seem to add an unintended newline at the end of the file
* Browser not working
"""
ActionObs = TypedDict(
'ActionObs', {'action': Action, 'observations': list[Observation]}
)
class DummyAgent(Agent):
VERSION = '1.0'
"""
The DummyAgent is used for e2e testing. It just sends the same set of actions deterministically,
without making any LLM calls.
"""
def __init__(self, llm: LLM, config: AgentConfig):
super().__init__(llm, config)
self.steps: list[ActionObs] = [
{
'action': MessageAction('Time to get started!'),
'observations': [],
},
{
'action': CmdRunAction(command='echo "foo"'),
'observations': [CmdOutputObservation('foo', command='echo "foo"')],
},
{
'action': FileWriteAction(
content='echo "Hello, World!"', path='hello.sh'
),
'observations': [
FileWriteObservation(
content='echo "Hello, World!"', path='hello.sh'
)
],
},
{
'action': FileReadAction(path='hello.sh'),
'observations': [
FileReadObservation('echo "Hello, World!"\n', path='hello.sh')
],
},
{
'action': CmdRunAction(command='bash hello.sh'),
'observations': [
CmdOutputObservation(
'bash: hello.sh: No such file or directory',
command='bash workspace/hello.sh',
metadata=CmdOutputMetadata(exit_code=127),
)
],
},
{
'action': BrowseURLAction(url='https://google.com'),
'observations': [
BrowserOutputObservation(
'<html><body>Simulated Google page</body></html>',
url='https://google.com',
screenshot='',
trigger_by_action='',
),
],
},
{
'action': BrowseInteractiveAction(
browser_actions='goto("https://google.com")'
),
'observations': [
BrowserOutputObservation(
'<html><body>Simulated Google page after interaction</body></html>',
url='https://google.com',
screenshot='',
trigger_by_action='',
),
],
},
{
'action': AgentRejectAction(),
'observations': [NullObservation('')],
},
{
'action': AgentFinishAction(
outputs={}, thought='Task completed', action='finish'
),
'observations': [AgentStateChangedObservation('', AgentState.FINISHED)],
},
]
def step(self, state: State) -> Action:
if state.iteration >= len(self.steps):
return AgentFinishAction()
current_step = self.steps[state.iteration]
action = current_step['action']
if state.iteration > 0:
prev_step = self.steps[state.iteration - 1]
if 'observations' in prev_step and prev_step['observations']:
expected_observations = prev_step['observations']
hist_events = state.history[-len(expected_observations) :]
if len(hist_events) < len(expected_observations):
print(
f'Warning: Expected {len(expected_observations)} observations, but got {len(hist_events)}'
)
for i in range(min(len(expected_observations), len(hist_events))):
hist_obs = event_to_dict(hist_events[i])
expected_obs = event_to_dict(expected_observations[i])
# Remove dynamic fields for comparison
for obs in [hist_obs, expected_obs]:
obs.pop('id', None)
obs.pop('timestamp', None)
obs.pop('cause', None)
obs.pop('source', None)
if hist_obs != expected_obs:
print(
f'Warning: Observation mismatch. Expected {expected_obs}, got {hist_obs}'
)
return action
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