perf(home): 冷启动提前拉取首页数据

test/config/server_endpoint_test.dart

@@ -1,3 +1,5 @@
+import 'dart:async';
+
 import 'package:flutter_test/flutter_test.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 import 'package:shared_preferences_platform_interface/in_memory_shared_preferences_async.dart';
@@ -11,9 +13,13 @@ void main() {
     SharedPreferencesAsyncPlatform.instance =
         InMemorySharedPreferencesAsync.empty();
     AppConfig.clearRuntimeBaseUrl();
+    AppConfig.ready = Future<void>.value();
   });
 
-  tearDown(AppConfig.clearRuntimeBaseUrl);
+  tearDown(() {
+    AppConfig.clearRuntimeBaseUrl();
+    AppConfig.ready = Future<void>.value();
+  });
 
   test('should_normalize_http_urls_and_reject_invalid_values', () {
     expect(
@@ -60,20 +66,39 @@ void main() {
     expect(AppConfig.devHostBaseUrl, 'http://192.168.31.187:8081');
   });
 
-  test('should_keep_loopback_priority_when_probe_succeeds', () async {
-    final attempts = <String>[];
+  test(
+    'should_probe_all_candidates_in_parallel_before_applying_priority',
+    () async {
+      final attempts = <String>[];
+      var active = 0;
+      var maxActive = 0;
+      final allStarted = Completer<void>();
 
-    await AppConfig.probeAndApplyBaseUrl(
-      fallbackBaseUrl: AppConfig.devHostBaseUrl,
-      probe: (baseUrl) async {
-        attempts.add(baseUrl);
-        return baseUrl == AppConfig.lanBaseUrl;
-      },
-    );
+      final probing = AppConfig.probeAndApplyBaseUrl(
+        fallbackBaseUrl: AppConfig.devHostBaseUrl,
+        probe: (baseUrl) async {
+          attempts.add(baseUrl);
+          active++;
+          if (active > maxActive) maxActive = active;
+          if (active == 3) allStarted.complete();
+          await allStarted.future;
+          active--;
+          return baseUrl == AppConfig.lanBaseUrl ||
+              baseUrl == AppConfig.devHostBaseUrl;
+        },
+      );
 
-    expect(attempts, [AppConfig.lanBaseUrl]);
-    expect(AppConfig.apiBaseUrl, AppConfig.lanBaseUrl);
-  });
+      await probing.timeout(const Duration(seconds: 1));
+
+      expect(attempts, [
+        AppConfig.lanBaseUrl,
+        AppConfig.devHostBaseUrl,
+        AppConfig.publicBaseUrl,
+      ]);
+      expect(maxActive, 3);
+      expect(AppConfig.apiBaseUrl, AppConfig.lanBaseUrl);
+    },
+  );
 
   test('should_probe_loopback_dev_host_then_public_in_order', () async {
     final attempts = <String>[];
@@ -125,7 +150,12 @@ void main() {
       },
     );
 
-    expect(attempts, [custom]);
+    expect(attempts, [
+      custom,
+      AppConfig.lanBaseUrl,
+      AppConfig.devHostBaseUrl,
+      AppConfig.publicBaseUrl,
+    ]);
     expect(AppConfig.apiBaseUrl, custom);
   });