refactor(string): split utilities by responsibility

tests/test_resource_v3.py

@@ -1,7 +1,5 @@
-from importlib.machinery import EXTENSION_SUFFIXES, PathFinder
 from pathlib import Path
 
-from app.application.site import _include_legacy_resource_directory
 from app.runtime.config import settings
 from app.adapters.system.resource import (
     ResourceHelper,
@@ -13,41 +11,6 @@ from app.startup import modules_initializer
 ROOT_DIR = Path(__file__).resolve().parents[1]
 
 
-def test_legacy_docker_updater_resource_directory_remains_importable(tmp_path):
-    """旧镜像把资源写入 helper 时，canonical 站点包仍应找到对应扩展。"""
-    package_dir = tmp_path / "app" / "application" / "site"
-    legacy_dir = tmp_path / "app" / "helper"
-    package_dir.mkdir(parents=True)
-    legacy_dir.mkdir(parents=True)
-    extension_path = legacy_dir / f"sites{EXTENSION_SUFFIXES[0]}"
-    extension_path.touch()
-    package_paths = [str(package_dir)]
-
-    _include_legacy_resource_directory(package_paths, package_dir)
-
-    assert (ROOT_DIR / "app" / "helper" / ".resource-compat").is_file()
-    assert package_paths == [str(package_dir), str(legacy_dir)]
-    spec = PathFinder.find_spec("app.application.site.sites", package_paths)
-    assert spec is not None
-    assert spec.origin == str(extension_path)
-
-
-def test_canonical_site_extension_takes_priority_over_legacy_directory(tmp_path):
-    """canonical 扩展存在时不得把旧资源目录加入站点包搜索路径。"""
-    package_dir = tmp_path / "app" / "application" / "site"
-    legacy_dir = tmp_path / "app" / "helper"
-    package_dir.mkdir(parents=True)
-    legacy_dir.mkdir(parents=True)
-    extension_name = f"sites{EXTENSION_SUFFIXES[0]}"
-    (package_dir / extension_name).touch()
-    (legacy_dir / extension_name).touch()
-    package_paths = [str(package_dir)]
-
-    _include_legacy_resource_directory(package_paths, package_dir)
-
-    assert package_paths == [str(package_dir)]
-
-
 def test_resource_helper_uses_v3_only():
     """在线资源更新器必须只请求 V3 清单、目录和站点索引文件。"""
     assert settings.VERSION_FLAG == "v3"