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import pytest
import base64
import json
import struct
from io import BytesIO
from PIL import Image
from aiohttp import web
from unittest.mock import patch
from app.model_manager import ModelFileManager
pytestmark = (
pytest.mark.asyncio
) # This applies the asyncio mark to all test functions in the module
@pytest.fixture
def model_manager():
return ModelFileManager()
@pytest.fixture
def app(model_manager):
app = web.Application()
routes = web.RouteTableDef()
model_manager.add_routes(routes)
app.add_routes(routes)
return app
async def test_get_model_preview_safetensors(aiohttp_client, app, tmp_path):
img = Image.new('RGB', (100, 100), 'white')
img_byte_arr = BytesIO()
img.save(img_byte_arr, format='PNG')
img_byte_arr.seek(0)
img_b64 = base64.b64encode(img_byte_arr.getvalue()).decode('utf-8')
safetensors_file = tmp_path / "test_model.safetensors"
header_bytes = json.dumps({
"__metadata__": {
"ssmd_cover_images": json.dumps([img_b64])
}
}).encode('utf-8')
length_bytes = struct.pack('<Q', len(header_bytes))
with open(safetensors_file, 'wb') as f:
f.write(length_bytes)
f.write(header_bytes)
with patch('folder_paths.folder_names_and_paths', {
'test_folder': ([str(tmp_path)], None)
}):
client = await aiohttp_client(app)
response = await client.get('/experiment/models/preview/test_folder/0/test_model.safetensors')
# Verify response
assert response.status == 200
assert response.content_type == 'image/webp'
# Verify the response contains valid image data
img_bytes = BytesIO(await response.read())
img = Image.open(img_bytes)
assert img.format
assert img.format.lower() == 'webp'
# Clean up
img.close()
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