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import base64
import json
import os
import sqlite3
import tempfile
import time
import unittest
from contextlib import closing
from pathlib import Path
from unittest import mock
from services.image_task_service import ImageTaskService, _public_task
OWNER = {"id": "owner-1", "name": "Owner", "role": "admin"}
OTHER_OWNER = {"id": "owner-2", "name": "Other", "role": "user"}
def wait_for_task(service: ImageTaskService, identity: dict[str, object], task_id: str, status: str, timeout: float = 2.0):
deadline = time.time() + timeout
last = None
while time.time() < deadline:
result = service.list_tasks(identity, [task_id])
last = (result.get("items") or [None])[0]
if last and last.get("status") == status:
return last
time.sleep(0.02)
raise AssertionError(f"task {task_id} did not reach {status}, last={last}")
class ImageTaskServiceTests(unittest.TestCase):
def make_service(self, path: Path, handler=None) -> ImageTaskService:
return ImageTaskService(
path,
generation_handler=handler or (lambda _payload: {"data": [{"url": "http://example.test/image.png"}]}),
edit_handler=handler or (lambda _payload: {"data": [{"url": "http://example.test/edit.png"}]}),
retention_days_getter=lambda: 30,
)
def test_duplicate_submit_uses_existing_task(self):
with tempfile.TemporaryDirectory() as tmp_dir:
calls = 0
def handler(_payload):
nonlocal calls
calls += 1
time.sleep(0.05)
return {"data": [{"url": "http://example.test/image.png"}]}
service = self.make_service(Path(tmp_dir) / "image_tasks.json", handler)
first = service.submit_generation(
OWNER,
client_task_id="task-1",
prompt="cat",
model="gpt-image-2",
size=None,
base_url="http://local.test",
)
second = service.submit_generation(
OWNER,
client_task_id="task-1",
prompt="cat",
model="gpt-image-2",
size=None,
base_url="http://local.test",
)
self.assertEqual(first["id"], "task-1")
self.assertEqual(second["id"], "task-1")
task = wait_for_task(service, OWNER, "task-1", "success")
self.assertEqual(task["data"][0]["url"], "http://example.test/image.png")
self.assertEqual(calls, 1)
def test_different_owner_cannot_query_task(self):
with tempfile.TemporaryDirectory() as tmp_dir:
service = self.make_service(Path(tmp_dir) / "image_tasks.json")
service.submit_generation(
OWNER,
client_task_id="private-task",
prompt="cat",
model="gpt-image-2",
size=None,
base_url="http://local.test",
)
wait_for_task(service, OWNER, "private-task", "success")
result = service.list_tasks(OTHER_OWNER, ["private-task"])
self.assertEqual(result["items"], [])
self.assertEqual(result["missing_ids"], ["private-task"])
def test_internal_model_daily_limit_settles_successful_task(self):
with tempfile.TemporaryDirectory() as tmp_dir:
calls: dict[str, list[dict[str, object]]] = {"reserve": [], "consume": [], "refund": []}
class FakeAuth:
def reserve_internal_image_model_daily_limit(self, key_id: str, **kwargs):
calls["reserve"].append({"key_id": key_id, **kwargs})
return {"_internal_image_model_daily_limit_reservation": {"amount": kwargs.get("amount")}}
def consume_internal_image_model_daily_limit(self, key_id: str, **kwargs):
calls["consume"].append({"key_id": key_id, **kwargs})
return {}
def refund_internal_image_model_daily_limit(self, key_id: str, **kwargs):
calls["refund"].append({"key_id": key_id, **kwargs})
return {}
service = self.make_service(Path(tmp_dir) / "image_tasks.json")
with mock.patch("services.auth_service.auth_service", FakeAuth()):
service.submit_generation(
OTHER_OWNER,
client_task_id="internal-limit-success",
prompt="cat",
model="gpt-image-2-4k",
size=None,
base_url="http://local.test",
internal_model_limit_user_id="owner-2",
internal_model_limit_model_id="gpt-image-2-4k",
internal_model_limit_amount=1,
)
wait_for_task(service, OTHER_OWNER, "internal-limit-success", "success")
self.assertEqual(calls["reserve"], [{"key_id": "owner-2", "model_id": "gpt-image-2-4k", "amount": 1}])
self.assertEqual(calls["consume"], [{"key_id": "owner-2", "model_id": "gpt-image-2-4k", "amount": 1}])
self.assertEqual(calls["refund"], [])
def test_internal_model_daily_limit_refunds_failed_task(self):
with tempfile.TemporaryDirectory() as tmp_dir:
calls: dict[str, list[dict[str, object]]] = {"reserve": [], "consume": [], "refund": []}
class FakeAuth:
def reserve_internal_image_model_daily_limit(self, key_id: str, **kwargs):
calls["reserve"].append({"key_id": key_id, **kwargs})
return {"_internal_image_model_daily_limit_reservation": {"amount": kwargs.get("amount")}}
def consume_internal_image_model_daily_limit(self, key_id: str, **kwargs):
calls["consume"].append({"key_id": key_id, **kwargs})
return {}
def refund_internal_image_model_daily_limit(self, key_id: str, **kwargs):
calls["refund"].append({"key_id": key_id, **kwargs})
return {}
def handler(_payload):
raise RuntimeError("upstream failed")
service = self.make_service(Path(tmp_dir) / "image_tasks.json", handler)
with mock.patch("services.auth_service.auth_service", FakeAuth()):
service.submit_generation(
OTHER_OWNER,
client_task_id="internal-limit-failed",
prompt="cat",
model="gpt-image-2-4k",
size=None,
base_url="http://local.test",
internal_model_limit_user_id="owner-2",
internal_model_limit_model_id="gpt-image-2-4k",
internal_model_limit_amount=1,
)
wait_for_task(service, OTHER_OWNER, "internal-limit-failed", "error")
self.assertEqual(calls["reserve"], [{"key_id": "owner-2", "model_id": "gpt-image-2-4k", "amount": 1}])
self.assertEqual(calls["consume"], [])
self.assertEqual(calls["refund"], [{"key_id": "owner-2", "model_id": "gpt-image-2-4k", "amount": 1}])
def test_normal_pool_task_settles_snapshotted_fractional_price(self):
with tempfile.TemporaryDirectory() as tmp_dir:
calls: dict[str, list[dict[str, object]]] = {"reserve": [], "consume": [], "refund": []}
class FakeAuth:
def reserve_credits(self, key_id: str, amount: int | float, **kwargs):
calls["reserve"].append({"key_id": key_id, "amount": amount, **kwargs})
return {
"_credit_reservation": {
"daily": 0,
"permanent_paid": amount,
"packages": [],
"grants": [],
}
}
def consume_reserved_credits(self, key_id: str, amount: int | float, **kwargs):
calls["consume"].append({"key_id": key_id, "amount": amount, **kwargs})
return {}
def refund_reserved_credits(self, key_id: str, amount: int | float, **kwargs):
calls["refund"].append({"key_id": key_id, "amount": amount, **kwargs})
return {}
pricing = {
"base_unit_price": 1,
"pay_percentage": 50,
"unit_price": 0.5,
"estimated_total": 0.5,
"rule_id": "weekday-offpeak",
"rule_name": "工作日低谷",
"evaluated_at": "2026-09-02T07:00:00+08:00",
}
service = self.make_service(Path(tmp_dir) / "image_tasks.json")
with mock.patch("services.auth_service.auth_service", FakeAuth()):
service.submit_generation(
{"id": "normal-1", "name": "Normal", "role": "normal"},
client_task_id="priced-pool-task",
prompt="cat",
model="gpt-image-2",
size=None,
base_url="http://local.test",
credit_user_id="normal-1",
credit_amount=0.5,
credit_pricing=pricing,
)
task = wait_for_task(
service,
{"id": "normal-1", "name": "Normal", "role": "normal"},
"priced-pool-task",
"success",
)
self.assertEqual([item["amount"] for item in calls["reserve"]], [0.5])
self.assertEqual([item["amount"] for item in calls["consume"]], [0.5])
self.assertEqual(calls["refund"], [])
with service._lock:
stored_task = next(item for item in service._tasks.values() if item.get("id") == "priced-pool-task")
self.assertEqual(stored_task["credit_pricing"]["rule_id"], "weekday-offpeak")
def test_success_task_persists_to_new_service_instance(self):
with tempfile.TemporaryDirectory() as tmp_dir:
path = Path(tmp_dir) / "image_tasks.json"
service = self.make_service(path)
service.submit_generation(
OWNER,
client_task_id="persisted-task",
prompt="cat",
model="gpt-image-2",
size=None,
base_url="http://local.test",
)
wait_for_task(service, OWNER, "persisted-task", "success")
reloaded = self.make_service(path)
result = reloaded.list_tasks(OWNER, ["persisted-task"])
self.assertEqual(result["missing_ids"], [])
self.assertEqual(result["items"][0]["status"], "success")
self.assertEqual(result["items"][0]["data"][0]["url"], "http://example.test/image.png")
def test_success_log_records_generation_account_email(self):
with tempfile.TemporaryDirectory() as tmp_dir:
captured_logs: list[dict[str, object]] = []
def handler(_payload):
return {
"data": [{"url": "http://example.test/image.png"}],
"_account_email": "plus@example.com",
}
def capture_log(_type, _summary="", detail=None, **_data):
captured_logs.append(dict(detail or {}))
service = self.make_service(Path(tmp_dir) / "image_tasks.json", handler)
with mock.patch("services.image_task_service.log_service.add", capture_log):
service.submit_generation(
OWNER,
client_task_id="account-log-task",
prompt="cat",
model="gpt-image-2",
size=None,
base_url="http://local.test",
)
wait_for_task(service, OWNER, "account-log-task", "success")
self.assertTrue(
any(item.get("account_email") == "plus@example.com" for item in captured_logs),
captured_logs,
)
def test_third_party_task_uses_url_response_format_and_logs_final_format(self):
with tempfile.TemporaryDirectory() as tmp_dir:
captured_payload: dict[str, object] = {}
captured_logs: list[dict[str, object]] = []
def handler(payload):
captured_payload.update(payload)
return {
"data": [{"url": "http://example.test/image.png"}],
"_third_party_image_api": {
"group_name": "4k",
"connection_name": "API A",
"model_id": "gpt-image-2",
"upstream_model": "gpt-image-2",
"resolution": "4k",
"response_format": "url",
},
}
def capture_log(_type, _summary="", detail=None, **_data):
captured_logs.append(dict(detail or {}))
service = self.make_service(Path(tmp_dir) / "image_tasks.json", handler)
with mock.patch("services.image_task_service.log_service.add", capture_log):
service.submit_generation(
OWNER,
client_task_id="third-party-format-task",
prompt="4k poster",
model="gpt-image-2",
size=None,
base_url="http://local.test",
resolution="4k",
third_party_image_group_id="group-1",
)
wait_for_task(service, OWNER, "third-party-format-task", "success")
self.assertEqual(captured_payload["response_format"], "url")
self.assertTrue(
any(item.get("image_api_response_format") == "url" for item in captured_logs),
captured_logs,
)
def test_inline_base64_task_result_is_saved_as_lightweight_site_url(self):
with tempfile.TemporaryDirectory() as tmp_dir:
encoded = base64.b64encode(b"image-bytes").decode("ascii")
class Stored:
url = "http://local.test/images/2026/08/29/result.png"
def handler(_payload):
return {"data": [{"b64_json": encoded, "revised_prompt": "cat"}]}
service = self.make_service(Path(tmp_dir) / "image_tasks.json", handler)
with mock.patch("services.image_task_service.image_storage_service.save", return_value=Stored()) as save:
service.submit_generation(
OWNER,
client_task_id="base64-task",
prompt="cat",
model="gpt-image-2",
size=None,
base_url="http://local.test",
)
task = wait_for_task(service, OWNER, "base64-task", "success")
self.assertEqual(save.call_count, 1)
self.assertEqual(save.call_args.args[0], b"image-bytes")
self.assertEqual(save.call_args.kwargs["base_url"], "http://local.test")
self.assertEqual(task["data"], [{"url": Stored.url, "revised_prompt": "cat"}])
def test_running_task_exposes_progress_and_elapsed_time(self):
with tempfile.TemporaryDirectory() as tmp_dir:
progress_ready = __import__("threading").Event()
finish = __import__("threading").Event()
def handler(payload):
payload["progress_callback"]("generation_success")
progress_ready.set()
finish.wait(1)
payload["progress_callback"]("receiving_image")
return {"data": [{"url": "http://example.test/image.png"}]}
service = self.make_service(Path(tmp_dir) / "image_tasks.json", handler)
service.submit_generation(
OWNER,
client_task_id="progress-task",
prompt="cat",
model="gpt-image-2",
size=None,
base_url="http://local.test",
)
self.assertTrue(progress_ready.wait(1))
running = service.list_tasks(OWNER, ["progress-task"])["items"][0]
self.assertEqual(running["status"], "running")
self.assertEqual(running["progress"], "generation_success")
self.assertEqual([item["step"] for item in running["progress_events"]], ["generation_success"])
self.assertIsInstance(running["elapsed_secs"], float)
finish.set()
completed = wait_for_task(service, OWNER, "progress-task", "success")
self.assertEqual(completed["duration_ms"] >= 0, True)
self.assertEqual(
[item["step"] for item in completed["progress_events"]],
["generation_success", "receiving_image"],
)
def test_running_task_elapsed_time_never_goes_negative(self):
public_task = _public_task({
"id": "future-task",
"status": "running",
"mode": "generate",
"model": "gpt-image-2",
"size": "",
"created_at": "2026-08-03 12:00:00",
"started_at": "2026-08-03 12:00:00",
"updated_at": "2026-08-03 12:00:00",
"started_ts": time.time() + 8 * 60 * 60,
})
self.assertEqual(public_task["elapsed_secs"], 0.0)
def test_public_task_redacts_account_email_from_error_without_mutating_admin_data(self):
email = "private-task@example.com"
task = {
"id": "private-error-task",
"status": "error",
"mode": "generate",
"model": "gpt-image-2",
"size": "",
"created_at": "2026-08-03 12:00:00",
"started_at": "2026-08-03 12:00:00",
"updated_at": "2026-08-03 12:00:00",
"account_email": email,
"error": f'HTTP 400: {{"error":{{"account_email":"{email}"}}}}',
}
public_task = _public_task(task)
self.assertNotIn(email, public_task["error"])
self.assertNotIn("account_email", public_task)
self.assertEqual(task["account_email"], email)
self.assertIn(email, task["error"])
def test_memory_reset_is_passed_to_edit_handler(self):
with tempfile.TemporaryDirectory() as tmp_dir:
captured_payload = {}
def handler(payload):
captured_payload.update(payload)
return {"data": [{"url": "http://example.test/edit.png"}]}
service = self.make_service(Path(tmp_dir) / "image_tasks.json", handler)
service.submit_edit(
OWNER,
client_task_id="memory-reset-task",
prompt="increase saturation",
model="gpt-image-2",
size=None,
base_url="http://local.test",
images=[(b"image", "reference.png", "image/png")],
memory_enabled=True,
memory_conversation_id="local-conversation",
memory_reset=True,
)
wait_for_task(service, OWNER, "memory-reset-task", "success")
self.assertTrue(captured_payload["memory"])
self.assertTrue(captured_payload["memory_reset"])
self.assertEqual(captured_payload["memory_conversation_id"], "local-conversation")
def test_startup_marks_unfinished_tasks_as_error(self):
with tempfile.TemporaryDirectory() as tmp_dir:
path = Path(tmp_dir) / "image_tasks.json"
path.write_text(
json.dumps(
{
"tasks": [
{
"id": "queued-task",
"owner_id": "owner-1",
"status": "queued",
"mode": "generate",
"model": "gpt-image-2",
"created_at": "2099-01-01 00:00:00",
"updated_at": "2099-01-01 00:00:00",
},
{
"id": "running-task",
"owner_id": "owner-1",
"status": "running",
"mode": "generate",
"model": "gpt-image-2",
"created_at": "2099-01-01 00:00:00",
"updated_at": "2099-01-01 00:00:00",
},
]
}
),
encoding="utf-8",
)
service = self.make_service(path)
result = service.list_tasks(OWNER, ["queued-task", "running-task"])
self.assertTrue(path.with_suffix(".db").is_file())
self.assertEqual([item["status"] for item in result["items"]], ["error", "error"])
self.assertTrue(all("已中断" in item.get("error", "") for item in result["items"]))
def test_startup_quarantines_corrupt_database_and_rebuilds_from_json(self):
with tempfile.TemporaryDirectory() as tmp_dir:
path = Path(tmp_dir) / "image_tasks.json"
path.write_text(
json.dumps(
{
"tasks": [
{
"id": "legacy-task",
"owner_id": "owner-1",
"status": "success",
"mode": "generate",
"model": "gpt-image-2",
"created_at": "2026-08-25 10:00:00",
"updated_at": "2026-08-25 10:00:01",
"data": [{"url": "https://example.test/recovered.png"}],
}
]
}
),
encoding="utf-8",
)
database_path = path.with_suffix(".db")
database_path.write_bytes(b"not a sqlite database")
service = self.make_service(path)
result = service.list_tasks(OWNER, ["legacy-task"])
self.assertEqual(result["items"][0]["status"], "success")
self.assertTrue(list(Path(tmp_dir).glob("image_tasks.db.corrupt-*")))
with closing(sqlite3.connect(database_path)) as connection:
self.assertEqual(connection.execute("PRAGMA integrity_check").fetchone()[0], "ok")
self.assertEqual(connection.execute("PRAGMA journal_mode").fetchone()[0], "delete")
def test_environment_error_relocates_database(self):
with tempfile.TemporaryDirectory() as tmp_dir:
# 让主数据库路径无法创建：父"目录"其实是一个文件
blocker = Path(tmp_dir) / "blocker"
blocker.write_text("not a directory", encoding="utf-8")
fallback = Path(tmp_dir) / "fallback" / "image_tasks.db"
path = blocker / "image_tasks.json"
with mock.patch.dict(os.environ, {"CHATGPT2API_IMAGE_TASKS_DB": str(fallback)}):
service = self.make_service(path)
self.assertEqual(service.db_path, fallback)
service.submit_generation(
OWNER,
client_task_id="relocated-task",
prompt="cat",
model="gpt-image-2",
size=None,
base_url="http://local.test",
)
task = wait_for_task(service, OWNER, "relocated-task", "success")
self.assertEqual(task["data"][0]["url"], "http://example.test/image.png")
self.assertTrue(fallback.is_file())
with closing(sqlite3.connect(fallback)) as connection:
self.assertEqual(connection.execute("PRAGMA integrity_check").fetchone()[0], "ok")
def test_environment_error_falls_back_to_memory(self):
with tempfile.TemporaryDirectory() as tmp_dir:
blocker = Path(tmp_dir) / "blocker"
blocker.write_text("not a directory", encoding="utf-8")
path = blocker / "image_tasks.json"
with mock.patch.object(
ImageTaskService, "_database_fallback_candidates", return_value=[]
):
service = self.make_service(path)
original_db_path = service.db_path
self.assertIsNotNone(service._memory_database)
self.assertEqual(service.db_path, original_db_path)
service.submit_generation(
OWNER,
client_task_id="memory-task",
prompt="cat",
model="gpt-image-2",
size=None,
base_url="http://local.test",
)
task = wait_for_task(service, OWNER, "memory-task", "success")
self.assertEqual(task["data"][0]["url"], "http://example.test/image.png")
self.assertFalse(original_db_path.exists())
def test_runtime_readonly_error_relocates_and_retries_write(self):
with tempfile.TemporaryDirectory() as tmp_dir:
path = Path(tmp_dir) / "image_tasks.json"
fallback = Path(tmp_dir) / "fallback" / "image_tasks.db"
service = self.make_service(path)
original_writer = service._write_database_task_list_locked
failed_once = False
def fail_primary_once(task_list, *, replace_all=False):
nonlocal failed_once
if not failed_once:
failed_once = True
raise sqlite3.OperationalError("attempt to write a readonly database")
return original_writer(task_list, replace_all=replace_all)
with (
mock.patch.dict(os.environ, {"CHATGPT2API_IMAGE_TASKS_DB": str(fallback)}),
mock.patch.object(service, "_write_database_task_list_locked", side_effect=fail_primary_once),
):
service.submit_generation(
OWNER,
client_task_id="runtime-relocated-task",
prompt="cat",
model="gpt-image-2",
size=None,
base_url="http://local.test",
)
task = wait_for_task(service, OWNER, "runtime-relocated-task", "success")
self.assertEqual(service.db_path, fallback)
self.assertEqual(task["data"][0]["url"], "http://example.test/image.png")
with closing(sqlite3.connect(fallback)) as connection:
stored = connection.execute(
"SELECT payload FROM image_tasks WHERE task_id = ?",
("runtime-relocated-task",),
).fetchone()
self.assertIsNotNone(stored)
self.assertEqual(json.loads(stored[0])["status"], "success")
if __name__ == "__main__":
unittest.main()
|