feat: enhance model metadata provider with import error handling and mock setup for tests

py/services/model_metadata_provider.py

@@ -1,11 +1,41 @@
 from abc import ABC, abstractmethod
 import json
-import aiosqlite
 import logging
-from bs4 import BeautifulSoup
-from typing import Optional, Dict, Tuple
+from typing import Optional, Dict, Tuple, Any
 from .downloader import get_downloader
 
+try:
+    from bs4 import BeautifulSoup
+except ImportError as exc:
+    BeautifulSoup = None  # type: ignore[assignment]
+    _BS4_IMPORT_ERROR = exc
+else:
+    _BS4_IMPORT_ERROR = None
+
+try:
+    import aiosqlite
+except ImportError as exc:
+    aiosqlite = None  # type: ignore[assignment]
+    _AIOSQLITE_IMPORT_ERROR = exc
+else:
+    _AIOSQLITE_IMPORT_ERROR = None
+
+def _require_beautifulsoup() -> Any:
+    if BeautifulSoup is None:
+        raise RuntimeError(
+            "BeautifulSoup (bs4) is required for CivArchiveModelMetadataProvider. "
+            "Install it with 'pip install beautifulsoup4'."
+        ) from _BS4_IMPORT_ERROR
+    return BeautifulSoup
+
+def _require_aiosqlite() -> Any:
+    if aiosqlite is None:
+        raise RuntimeError(
+            "aiosqlite is required for SQLiteModelMetadataProvider. "
+            "Install it with 'pip install aiosqlite'."
+        ) from _AIOSQLITE_IMPORT_ERROR
+    return aiosqlite
+
 logger = logging.getLogger(__name__)
 
 class ModelMetadataProvider(ABC):
@@ -78,7 +108,8 @@ class CivArchiveModelMetadataProvider(ModelMetadataProvider):
                 html_content = await response.text()
                 
             # Parse HTML to extract JSON data
-            soup = BeautifulSoup(html_content, 'html.parser')
+            soup_parser = _require_beautifulsoup()
+            soup = soup_parser(html_content, 'html.parser')
             script_tag = soup.find('script', {'id': '__NEXT_DATA__', 'type': 'application/json'})
             
             if not script_tag:
@@ -171,10 +202,11 @@ class SQLiteModelMetadataProvider(ModelMetadataProvider):
     
     def __init__(self, db_path: str):
         self.db_path = db_path
+        self._aiosqlite = _require_aiosqlite()
         
     async def get_model_by_hash(self, model_hash: str) -> Tuple[Optional[Dict], Optional[str]]:
         """Find model by hash value from SQLite database"""
-        async with aiosqlite.connect(self.db_path) as db:
+        async with self._aiosqlite.connect(self.db_path) as db:
             # Look up in model_files table to get model_id and version_id
             query = """
                 SELECT model_id, version_id 
@@ -182,7 +214,7 @@ class SQLiteModelMetadataProvider(ModelMetadataProvider):
                 WHERE sha256 = ? 
                 LIMIT 1
             """
-            db.row_factory = aiosqlite.Row
+            db.row_factory = self._aiosqlite.Row
             cursor = await db.execute(query, (model_hash.upper(),))
             file_row = await cursor.fetchone()
             
@@ -199,8 +231,8 @@ class SQLiteModelMetadataProvider(ModelMetadataProvider):
             
     async def get_model_versions(self, model_id: str) -> Optional[Dict]:
         """Get all versions of a model from SQLite database"""
-        async with aiosqlite.connect(self.db_path) as db:
-            db.row_factory = aiosqlite.Row
+        async with self._aiosqlite.connect(self.db_path) as db:
+            db.row_factory = self._aiosqlite.Row
             
             # First check if model exists
             model_query = "SELECT * FROM models WHERE id = ?"
@@ -258,8 +290,8 @@ class SQLiteModelMetadataProvider(ModelMetadataProvider):
         if not model_id and not version_id:
             return None
             
-        async with aiosqlite.connect(self.db_path) as db:
-            db.row_factory = aiosqlite.Row
+        async with self._aiosqlite.connect(self.db_path) as db:
+            db.row_factory = self._aiosqlite.Row
             
             # Case 1: Only version_id is provided
             if model_id is None and version_id is not None:
@@ -295,8 +327,8 @@ class SQLiteModelMetadataProvider(ModelMetadataProvider):
     
     async def get_model_version_info(self, version_id: str) -> Tuple[Optional[Dict], Optional[str]]:
         """Fetch model version metadata from SQLite database"""
-        async with aiosqlite.connect(self.db_path) as db:
-            db.row_factory = aiosqlite.Row
+        async with self._aiosqlite.connect(self.db_path) as db:
+            db.row_factory = self._aiosqlite.Row
             
             # Get version details
             version_query = "SELECT model_id FROM model_versions WHERE id = ?"

pytest.ini

@@ -0,0 +1,8 @@
+[pytest]
+addopts = -v --import-mode=importlib
+testpaths = tests
+python_files = test_*.py
+python_classes = Test*
+python_functions = test_*
+# Skip problematic directories to avoid import conflicts
+norecursedirs = .git .tox dist build *.egg __pycache__ py

run_tests.py

@@ -0,0 +1,46 @@
+#!/usr/bin/env python3
+"""
+Test runner script for ComfyUI-Lora-Manager.
+
+This script runs pytest from the tests directory to avoid import issues
+with the root __init__.py file.
+"""
+import subprocess
+import sys
+import os
+from pathlib import Path
+
+def main():
+    """Run pytest from the tests directory to avoid import issues."""
+    # Get the script directory
+    script_dir = Path(__file__).parent.absolute()
+    tests_dir = script_dir / "tests"
+    
+    if not tests_dir.exists():
+        print(f"Error: Tests directory not found at {tests_dir}")
+        return 1
+    
+    # Change to tests directory
+    original_cwd = os.getcwd()
+    os.chdir(tests_dir)
+    
+    try:
+        # Build pytest command
+        cmd = [
+            sys.executable, "-m", "pytest",
+            "-v",
+            "--rootdir=.",
+        ] + sys.argv[1:]  # Pass any additional arguments
+        
+        print(f"Running: {' '.join(cmd)}")
+        print(f"Working directory: {tests_dir}")
+        
+        # Run pytest
+        result = subprocess.run(cmd, cwd=tests_dir)
+        return result.returncode
+    finally:
+        # Restore original working directory
+        os.chdir(original_cwd)
+
+if __name__ == "__main__":
+    sys.exit(main())

tests/conftest.py

@@ -1,8 +1,43 @@
+import types
 from dataclasses import dataclass, field
 from typing import Any, Dict, List, Optional, Sequence
+from unittest import mock
+import sys
 
 import pytest
 
+# Mock ComfyUI modules before any imports from the main project
+server_mock = types.SimpleNamespace()
+server_mock.PromptServer = mock.MagicMock()
+sys.modules['server'] = server_mock
+
+folder_paths_mock = types.SimpleNamespace()
+folder_paths_mock.get_folder_paths = mock.MagicMock(return_value=[])
+folder_paths_mock.folder_names_and_paths = {}
+sys.modules['folder_paths'] = folder_paths_mock
+
+# Mock other ComfyUI modules that might be imported
+comfy_mock = types.SimpleNamespace()
+comfy_mock.utils = types.SimpleNamespace()
+comfy_mock.model_management = types.SimpleNamespace()
+comfy_mock.comfy_types = types.SimpleNamespace()
+comfy_mock.comfy_types.IO = mock.MagicMock()
+sys.modules['comfy'] = comfy_mock
+sys.modules['comfy.utils'] = comfy_mock.utils
+sys.modules['comfy.model_management'] = comfy_mock.model_management
+sys.modules['comfy.comfy_types'] = comfy_mock.comfy_types
+
+execution_mock = types.SimpleNamespace()
+execution_mock.PromptExecutor = mock.MagicMock()
+sys.modules['execution'] = execution_mock
+
+# Mock ComfyUI nodes module  
+nodes_mock = types.SimpleNamespace()
+nodes_mock.LoraLoader = mock.MagicMock()
+nodes_mock.SaveImage = mock.MagicMock()
+nodes_mock.NODE_CLASS_MAPPINGS = {}
+sys.modules['nodes'] = nodes_mock
+
 
 @dataclass
 class MockHashIndex: