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https://github.com/comfyanonymous/ComfyUI.git
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3cacd3fca5
* Support preview images embedded in safetensors metadata * Add unit test for safetensors embedded image previews
63 lines
1.8 KiB
Python
63 lines
1.8 KiB
Python
import pytest
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import base64
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import json
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import struct
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from io import BytesIO
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from PIL import Image
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from aiohttp import web
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from unittest.mock import patch
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from app.model_manager import ModelFileManager
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pytestmark = (
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pytest.mark.asyncio
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) # This applies the asyncio mark to all test functions in the module
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@pytest.fixture
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def model_manager():
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return ModelFileManager()
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@pytest.fixture
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def app(model_manager):
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app = web.Application()
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routes = web.RouteTableDef()
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model_manager.add_routes(routes)
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app.add_routes(routes)
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return app
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async def test_get_model_preview_safetensors(aiohttp_client, app, tmp_path):
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img = Image.new('RGB', (100, 100), 'white')
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img_byte_arr = BytesIO()
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img.save(img_byte_arr, format='PNG')
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img_byte_arr.seek(0)
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img_b64 = base64.b64encode(img_byte_arr.getvalue()).decode('utf-8')
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safetensors_file = tmp_path / "test_model.safetensors"
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header_bytes = json.dumps({
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"__metadata__": {
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"ssmd_cover_images": json.dumps([img_b64])
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}
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}).encode('utf-8')
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length_bytes = struct.pack('<Q', len(header_bytes))
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with open(safetensors_file, 'wb') as f:
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f.write(length_bytes)
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f.write(header_bytes)
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with patch('folder_paths.folder_names_and_paths', {
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'test_folder': ([str(tmp_path)], None)
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}):
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client = await aiohttp_client(app)
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response = await client.get('/experiment/models/preview/test_folder/0/test_model.safetensors')
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# Verify response
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assert response.status == 200
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assert response.content_type == 'image/webp'
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# Verify the response contains valid image data
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img_bytes = BytesIO(await response.read())
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img = Image.open(img_bytes)
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assert img.format
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assert img.format.lower() == 'webp'
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# Clean up
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img.close()
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