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Artemis-Eapil/tests/unit/admin_console/test_task_queue_service.py
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# Copyright 2026 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import asyncio
import importlib
import json
import os
import subprocess
import sys
from unittest.mock import AsyncMock, MagicMock, patch
import pytest
from apps.admin_console.core.state import state
from apps.admin_console.routers.tasks import get_status
from apps.admin_console.services.task_queue_service import TaskQueueService, task_queue_service
from artemis.runtime.device_lock import DeviceLockOwner
@pytest.fixture(autouse=True)
def clean_state(tmp_path, monkeypatch):
"""Reset global state between tests."""
isolated_pause_file = tmp_path / ".artemis_paused"
state_module = importlib.import_module("apps.admin_console.core.state")
queue_module = importlib.import_module("apps.admin_console.services.task_queue_service")
monkeypatch.setattr(state_module, "PAUSE_FILE", isolated_pause_file)
monkeypatch.setattr(queue_module, "PAUSE_FILE", isolated_pause_file)
state.clear_queue()
state.queue_items.clear()
state.current_process = None
state.current_goal = None
state.current_profile = None
state.active_session_id = None
state.active_connections.clear()
state.was_stopped_manually = False
state.cancelled_session_ids.clear()
if state.worker_task and not state.worker_task.done():
state.worker_task.cancel()
state.worker_task = None
yield
state.clear_queue()
state.queue_items.clear()
state.active_connections.clear()
state.cancelled_session_ids.clear()
if state.worker_task and not state.worker_task.done():
state.worker_task.cancel()
state.worker_task = None
def test_paused_error_reads_persisted_reason(tmp_path):
pause_file = tmp_path / ".artemis_paused"
pause_file.write_text("LLM Error: 503 UNAVAILABLE: model overloaded", encoding="utf-8")
with patch("apps.admin_console.core.state.PAUSE_FILE", pause_file):
assert state.is_paused is True
assert state.paused_error == "503 UNAVAILABLE: model overloaded"
@pytest.mark.asyncio
async def test_get_next_pending_task():
state.queue_items = [
{"session_id": "s1", "goal": "Goal A", "status": "pending"},
{"session_id": "s2", "goal": "Goal B", "status": "pending"},
]
next_task = TaskQueueService._get_next_pending_task()
assert next_task is not None
assert next_task["goal"] == "Goal A"
@pytest.mark.parametrize(
("current_status", "returncode", "stopped", "expected"),
[
("completed", 1, False, ("completed", False)),
("failed", 0, False, ("failed", False)),
("cancelled", 0, False, ("cancelled", False)),
("success", 1, False, ("completed", True)),
("running", 0, False, ("completed", True)),
("running", 1, False, ("failed", True)),
("completed", 0, True, ("cancelled", True)),
],
)
def test_resolve_terminal_status_preserves_authoritative_result(
current_status, returncode, stopped, expected
):
assert (
TaskQueueService._resolve_terminal_status(current_status, returncode, stopped) == expected
)
@pytest.mark.asyncio
async def test_remove_task():
state.queue_items = [
{"session_id": "s1", "goal": "Goal A", "status": "pending"},
{"session_id": "s2", "goal": "Goal B", "status": "pending"},
]
TaskQueueService._remove_task("s1")
assert len(state.queue_items) == 1
assert state.queue_items[0]["goal"] == "Goal B"
@pytest.mark.asyncio
async def test_stop_tasks_clear_all():
state.queue_items = [
{"session_id": "s1", "goal": "Goal 1", "status": "pending"},
{"session_id": "s2", "goal": "Goal 2", "status": "pending"},
{"session_id": "s3", "goal": "Goal 3", "status": "pending"},
]
assert len(state.queue_tasks) == 3
with patch.object(TaskQueueService, "ensure_worker_running"):
stopped = task_queue_service.stop_tasks(clear_all=True)
assert len(state.queue_tasks) == 0
assert len(state.queue_items) == 0
@pytest.mark.asyncio
async def test_stop_tasks_keep_remaining():
state.queue_items = [
{"session_id": "s1", "goal": "Goal 1", "status": "running"},
{"session_id": "s2", "goal": "Goal 2", "status": "pending"},
]
state.active_session_id = "s1"
mock_proc = MagicMock()
mock_proc.pid = 12345
mock_proc.returncode = None
state.current_process = mock_proc
with (
patch(
"apps.admin_console.services.task_queue_service.process_supervisor.terminate_tree"
) as mock_term,
patch.object(TaskQueueService, "ensure_worker_running"),
patch(
"apps.admin_console.services.task_queue_service.session_repo.update_session_status"
) as update_status,
patch(
"apps.admin_console.services.task_queue_service.session_repo.mark_all_running_cancelled"
) as mark_all,
):
stopped = task_queue_service.stop_tasks(clear_all=False)
assert stopped is True
mock_proc.kill.assert_called_once()
mock_term.assert_called_once_with(12345)
update_status.assert_called_once()
assert update_status.call_args.args[:2] == ("s1", "cancelled")
mark_all.assert_not_called()
@pytest.mark.asyncio
async def test_queue_worker_execution_lifecycle():
executed_goals = []
async def fake_subprocess_exec(*args, **kwargs):
goal_arg = args[3]
executed_goals.append(goal_arg)
proc = MagicMock()
proc.pid = 99999
proc.wait = AsyncMock(return_value=0)
proc.returncode = 0
return proc
with (
patch("asyncio.create_subprocess_exec", side_effect=fake_subprocess_exec),
patch("apps.admin_console.services.task_queue_service.session_repo") as mock_repo,
):
mock_repo.get_running_session_id.return_value = None
# Enqueue two tasks
res = await task_queue_service.enqueue_tasks(["First Task", "Second Task"])
assert res["enqueued_count"] == 2
# Give event loop time for queue_worker to execute both tasks
for _ in range(30):
if len(executed_goals) == 2:
break
await asyncio.sleep(0.05)
assert executed_goals == ["First Task", "Second Task"]
assert len(state.queue_items) == 0
task = state.worker_task
if task and not task.done():
task.cancel()
try:
await task
except (asyncio.CancelledError, Exception):
pass
@pytest.mark.asyncio
async def test_queue_worker_cmd_construction():
executed_cmds = []
executed_kwargs = []
async def fake_subprocess_exec(*args, **kwargs):
executed_cmds.append(list(args))
executed_kwargs.append(kwargs)
proc = MagicMock()
proc.pid = 88888
proc.wait = AsyncMock(return_value=0)
proc.returncode = 0
return proc
with (
patch("asyncio.create_subprocess_exec", side_effect=fake_subprocess_exec),
patch("apps.admin_console.services.task_queue_service.session_repo") as mock_repo,
):
mock_repo.get_running_session_id.return_value = None
enqueue_result = await task_queue_service.enqueue_tasks(
["Test Goal with Outputter"],
profile="pro",
expected_output="Final summary",
enable_outputter=True,
locked_app_package="com.google.android.apps.maps",
app_path="/path/to/app.apk",
)
for _ in range(30):
if len(executed_cmds) == 1 and len(state.queue_items) == 0:
break
await asyncio.sleep(0.05)
assert len(executed_cmds) == 1
cmd = executed_cmds[0]
assert "--enable-outputter" in cmd
assert "true" not in cmd
assert "--output-description" in cmd
assert "Final summary" in cmd
assert "--locked-app" in cmd
assert "com.google.android.apps.maps" in cmd
assert "--app-path" in cmd
assert "/path/to/app.apk" in cmd
assert (
executed_kwargs[0]["env"]["ARTEMIS_DEVICE_QUEUE_TICKET"]
== (enqueue_result["tasks"][0]["queue_ticket"])
)
if sys.platform == "win32":
assert executed_kwargs[0]["creationflags"] == (
subprocess.CREATE_NEW_PROCESS_GROUP | subprocess.CREATE_NO_WINDOW
)
assert executed_kwargs[0]["stdout"] == asyncio.subprocess.PIPE
assert executed_kwargs[0]["stderr"] == asyncio.subprocess.STDOUT
else:
assert "creationflags" not in executed_kwargs[0]
task = state.worker_task
if task and not task.done():
task.cancel()
try:
await task
except (asyncio.CancelledError, Exception):
pass
@pytest.mark.asyncio
async def test_forward_worker_output_preserves_split_utf8(capsys):
stream = asyncio.StreamReader()
encoded = "worker 输出正常\n".encode()
stream.feed_data(encoded[:9])
stream.feed_data(encoded[9:])
stream.feed_eof()
await TaskQueueService._forward_worker_output(stream)
assert capsys.readouterr().out == "worker 输出正常\n"
@pytest.mark.skipif(sys.platform != "win32", reason="Windows console isolation only")
def test_windows_worker_has_no_inherited_console():
probe = r"""
import ctypes
import json
buffer = (ctypes.c_uint32 * 32)()
count = ctypes.windll.kernel32.GetConsoleProcessList(buffer, len(buffer))
print(json.dumps(list(buffer[:min(count, len(buffer))])))
"""
result = subprocess.run(
[sys.executable, "-c", probe],
check=True,
text=True,
**TaskQueueService._subprocess_creation_kwargs(),
)
attached_processes = json.loads(result.stdout)
assert os.getpid() not in attached_processes
@pytest.mark.asyncio
async def test_stop_tasks_dead_process_resets_state():
state.queue_items = [
{"session_id": "s1", "goal": "Goal 1", "status": "pending"},
]
mock_proc = MagicMock()
mock_proc.pid = 99999999
mock_proc.returncode = None
mock_proc.kill.side_effect = ProcessLookupError("No such process")
state.current_process = mock_proc
with patch.object(TaskQueueService, "ensure_worker_running"):
stopped = task_queue_service.stop_tasks(clear_all=False)
assert stopped is True
assert state.current_process is None
assert state.is_running is False
assert len(state.queue_items) == 0
def test_stop_tasks_terminates_external_global_owner_and_preserves_local_waiter():
external_owner = DeviceLockOwner(
pid=24680,
process_created_at=1234.5,
token="external-owner-token",
device_id="emulator-5554",
description="MCP task: inspect settings",
acquired_at="2026-08-24T00:00:00+00:00",
session_id="mcp-session",
ingress="mcp",
)
local_waiter = MagicMock(pid=13579, returncode=None)
state.current_process = local_waiter
state.queue_items = [
{
"session_id": "frontend-waiter",
"goal": "Run after MCP",
"status": "running",
"queue_ticket": "frontend-ticket",
}
]
state.active_session_id = "mcp-session"
state.active_connections["mcp-session"] = {"pid": 24680}
with (
patch.object(
TaskQueueService,
"ensure_worker_running",
),
patch(
"apps.admin_console.services.task_queue_service.DeviceExecutionLock.get_active_owner",
return_value=external_owner,
),
patch(
"apps.admin_console.services.task_queue_service.DeviceExecutionLock.is_active_owner",
return_value=True,
),
patch(
"apps.admin_console.services.task_queue_service.DeviceExecutionLock.cleanup_stale_locks"
),
patch(
"apps.admin_console.services.task_queue_service.process_supervisor.terminate_tree_verified",
return_value=True,
) as terminate_verified,
patch(
"apps.admin_console.services.task_queue_service.session_repo.update_session_status"
) as update_status,
patch(
"mcp_server.utils.trace_store.update_trace_status"
) as update_trace_status,
):
assert task_queue_service.stop_tasks(clear_all=False) is True
terminate_verified.assert_called_once_with(24680, 1234.5)
local_waiter.kill.assert_not_called()
assert state.current_process is local_waiter
assert state.queue_items[0]["session_id"] == "frontend-waiter"
assert state.was_stopped_manually is False
assert "frontend-waiter" not in state.cancelled_session_ids
assert "mcp-session" not in state.active_connections
update_status.assert_called_once()
assert update_status.call_args.args[:2] == ("mcp-session", "cancelled")
update_trace_status.assert_called_once_with(
"mcp-session",
"cancelled",
error="Task stopped from the Artemis frontend.",
)
def test_stop_tasks_does_not_kill_stale_reused_pid():
stale_owner = DeviceLockOwner(
pid=24680,
process_created_at=1234.5,
token="stale-token",
device_id="emulator-5554",
description="CLI task",
acquired_at="2026-08-24T00:00:00+00:00",
session_id="cli-session",
ingress="sdk",
)
with (
patch(
"apps.admin_console.services.task_queue_service.DeviceExecutionLock.get_active_owner",
return_value=stale_owner,
),
patch(
"apps.admin_console.services.task_queue_service.DeviceExecutionLock.is_active_owner",
return_value=False,
),
patch(
"apps.admin_console.services.task_queue_service.process_supervisor.terminate_tree_verified"
) as terminate_verified,
):
assert task_queue_service.stop_tasks(clear_all=False) is False
terminate_verified.assert_not_called()
@pytest.mark.asyncio
async def test_status_reports_external_global_owner_without_ipc_connection():
external_owner = DeviceLockOwner(
pid=24680,
process_created_at=1234.5,
token="external-owner-token",
device_id="emulator-5554",
description="CLI task: inspect settings",
acquired_at="2026-08-24T00:00:00+00:00",
session_id="cli-session",
ingress="cli",
)
with (
patch.object(TaskQueueService, "ensure_worker_running"),
patch(
"apps.admin_console.routers.tasks.DeviceExecutionLock.get_active_owner",
return_value=external_owner,
),
patch("apps.admin_console.routers.tasks.session_repo") as repo,
patch("apps.admin_console.routers.tasks.model_service") as models,
):
repo.get_latest_session.return_value = None
repo.get_session_by_id.return_value = None
models.get_active_model_info.return_value = None
result = await get_status()
assert result["status"] == "running"
assert result["session_id"] == "cli-session"
assert result["pid"] == 24680
assert result["goal"] == "CLI task: inspect settings"
@pytest.mark.asyncio
async def test_cancel_task_triggers_next_pending_task():
executed_goals = []
async def fake_subprocess_exec(*args, **kwargs):
goal_arg = args[3]
executed_goals.append(goal_arg)
proc = MagicMock()
proc.pid = 77777
async def wait_side_effect():
if goal_arg == "Task 1":
# Simulate task 1 being stopped manually mid-execution
await asyncio.sleep(0.05)
task_queue_service.stop_tasks(clear_all=False)
return -9
await asyncio.sleep(0.02)
return 0
proc.wait = AsyncMock(side_effect=wait_side_effect)
proc.returncode = 0
return proc
with (
patch("asyncio.create_subprocess_exec", side_effect=fake_subprocess_exec),
patch("apps.admin_console.services.task_queue_service.session_repo") as mock_repo,
):
mock_repo.get_running_session_id.return_value = None
await task_queue_service.enqueue_tasks(["Task 1", "Task 2"])
for _ in range(40):
if len(executed_goals) == 2 and len(state.queue_items) == 0:
break
await asyncio.sleep(0.05)
assert executed_goals == ["Task 1", "Task 2"]
assert len(state.queue_items) == 0
task = state.worker_task
if task and not task.done():
task.cancel()
try:
await task
except (asyncio.CancelledError, Exception):
pass
@pytest.mark.asyncio
async def test_immediate_cancel_ignores_stale_ipc_and_runs_next_task():
executed_goals = []
task1_session_id = None
async def fake_subprocess_exec(*args, **kwargs):
goal_arg = args[3]
executed_goals.append(goal_arg)
proc = MagicMock()
proc.pid = 88888
async def wait_side_effect():
if goal_arg == "Task 1":
return -9
await asyncio.sleep(0.02)
return 0
proc.wait = AsyncMock(side_effect=wait_side_effect)
proc.returncode = 0
return proc
with (
patch("asyncio.create_subprocess_exec", side_effect=fake_subprocess_exec),
patch("apps.admin_console.services.task_queue_service.session_repo") as mock_repo,
):
mock_repo.get_running_session_id.return_value = None
# Enqueue Task 1
res1 = await task_queue_service.enqueue_tasks(["Task 1"])
task1_session_id = res1["tasks"][0]["session_id"]
# Immediately stop Task 1
task_queue_service.stop_tasks(clear_all=False)
assert task1_session_id in state.cancelled_session_ids
# Simulate stale session_started arriving over IPC for the cancelled Task 1
from apps.admin_console.services.ipc_service import ipc_service
ipc_service.sanitize_event_data("session_started", {"session_id": task1_session_id})
# If IPC handler checks cancelled_session_ids, state.active_session_id should not get stuck
assert state.active_session_id != task1_session_id
assert state.is_running is False
# Enqueue Task 2 and verify it runs immediately without getting stuck in pending
await task_queue_service.enqueue_tasks(["Task 2"])
for _ in range(40):
if "Task 2" in executed_goals:
break
await asyncio.sleep(0.05)
assert "Task 2" in executed_goals
assert len(state.queue_items) == 0
task = state.worker_task
if task and not task.done():
task.cancel()
try:
await task
except (asyncio.CancelledError, Exception):
pass