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life-echo/api/tests/test_generate_chapter_images_persistence.py

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import base64
import unittest
from types import SimpleNamespace
from unittest.mock import Mock, patch
from tasks.memoir_tasks import generate_chapter_images
_ONE_BY_ONE_PNG = base64.b64decode(
"iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mP8/x8AAwMCAO+aF9sAAAAASUVORK5CYII="
)
def _image_record(img_dict):
d = dict(img_dict or {})
return SimpleNamespace(
order_index=d.get("index", 0),
placeholder=d.get("placeholder"),
description=d.get("description"),
status=d.get("status"),
prompt=d.get("prompt"),
url=d.get("url"),
storage_key=d.get("storage_key"),
provider=d.get("provider"),
style=d.get("style"),
size=d.get("size"),
error=d.get("error"),
retryable=d.get("retryable"),
created_at=d.get("created_at"),
updated_at=d.get("updated_at"),
)
def _chapter_stub():
rec = _image_record(
{
"index": 0,
"placeholder": "{{{{IMAGE:南方小镇的青石板路}}}}",
"description": "南方小镇的青石板路",
"status": "pending",
"url": None,
}
)
section = SimpleNamespace(
content="那条路我一直记得。",
image_id="image-1",
image_record=rec,
order_index=0,
)
return SimpleNamespace(
id="chapter-1",
user_id="user-1",
title="童年的夏天",
category="childhood",
sections=[section],
images=[],
cover_image=None,
)
class GenerateChapterImagesPersistenceTest(unittest.TestCase):
@patch("tasks.memoir_tasks.SessionLocal")
@patch("tasks.memoir_tasks.TencentCosStorageService")
@patch("tasks.memoir_tasks.LiblibImageProvider")
@patch("tasks.memoir_tasks.MemoirImagePromptService")
@patch("tasks.memoir_tasks._release_chapter_image_lock")
@patch("tasks.memoir_tasks._acquire_chapter_image_lock", return_value=True)
def test_successful_generation_persists_completed_status(
self,
_acquire_lock_mock,
_release_lock_mock,
prompt_service_cls,
provider_cls,
storage_cls,
session_local_cls,
):
chapter = _chapter_stub()
db = Mock()
db.execute.return_value.unique.return_value.scalar_one_or_none.return_value = chapter
session_local_cls.return_value = db
prompt_service_cls.return_value.build_prompt.return_value = {
"prompt": "A serene southern China town",
"style": "watercolor",
"size": "1024x1024",
}
provider_inst = provider_cls.return_value
provider_inst.submit_generation.return_value = {
"status": "completed",
"image_url": "https://provider.example.com/1.png",
}
provider_inst.download_image.return_value = _ONE_BY_ONE_PNG
storage_cls.from_env.return_value.upload_bytes.return_value = (
"https://cos.example.com/memoirs/user-1/chapter-1/0.png"
)
generate_chapter_images.run("chapter-1")
record = chapter.sections[0].image_record
self.assertEqual(record.status, "completed")
self.assertEqual(record.url, "https://cos.example.com/memoirs/user-1/chapter-1/0.png")
self.assertEqual(record.prompt, "A serene southern China town")