refactor: 收口跨平台重复业务实现

tests/test_proxy_runtime.py

@@ -0,0 +1,58 @@
+"""全局代理配置到运行时来源的唯一映射测试。"""
+
+from web.backend.models import ProxyConfig
+from web.backend.services.proxy_service import build_proxy_runtime
+
+
+def _config(**overrides) -> ProxyConfig:
+    values = {
+        "enabled": True,
+        "api_url": "",
+        "http": "",
+        "https": "",
+        "whitelist_enabled": False,
+        "whitelist_platform": "xiequ",
+        "whitelist_credentials": None,
+        "whitelist_uid": "",
+        "whitelist_ukey": "",
+    }
+    values.update(overrides)
+    config = ProxyConfig()
+    for key, value in values.items():
+        setattr(config, key, value)
+    return config
+
+
+def test_proxy_runtime_preserves_static_http_and_https_addresses():
+    runtime = build_proxy_runtime(
+        _config(
+            http="http://10.0.0.1:8080",
+            https="http://10.0.0.2:8080",
+        )
+    )
+
+    assert runtime.static_proxies == {
+        "http": "http://10.0.0.1:8080",
+        "https": "http://10.0.0.2:8080",
+    }
+    assert runtime.api_fetcher is None
+
+
+def test_proxy_runtime_builds_api_fetcher_with_legacy_whitelist_fields():
+    runtime = build_proxy_runtime(
+        _config(
+            api_url="https://proxy.example/fetch",
+            whitelist_enabled=True,
+            whitelist_uid="legacy-user",
+            whitelist_ukey="legacy-key",
+        )
+    )
+
+    assert runtime.static_proxies is None
+    assert runtime.api_fetcher is not None
+    assert runtime.api_fetcher.api_url == "https://proxy.example/fetch"
+
+
+def test_proxy_runtime_is_empty_when_caller_or_global_switch_is_off():
+    assert not build_proxy_runtime(_config(), enabled=False).enabled
+    assert not build_proxy_runtime(_config(enabled=False)).enabled