Integration test to expose both SDK and regular package results.

pkg/pub_integration/test/search_sdk_regular_results_test.dart

@@ -0,0 +1,57 @@
+// Copyright (c) 2025, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:convert';
+
+import 'package:http/http.dart' as http;
+import 'package:pub_integration/src/fake_test_context_provider.dart';
+import 'package:pub_integration/src/pub_puppeteer_helpers.dart';
+import 'package:pub_integration/src/test_browser.dart';
+import 'package:test/test.dart';
+
+void main() {
+  group('Search with SDK and regular results', () {
+    late final TestContextProvider fakeTestScenario;
+
+    setUpAll(() async {
+      fakeTestScenario = await TestContextProvider.start();
+    });
+
+    tearDownAll(() async {
+      await fakeTestScenario.close();
+    });
+
+    test('bulk tests', () async {
+      // init server data
+      await http.post(
+        Uri.parse('${fakeTestScenario.pubHostedUrl}/fake-test-profile'),
+        body: json.encode(
+          {
+            'testProfile': {
+              'defaultUser': 'admin@pub.dev',
+              'generatedPackages': [
+                {'name': 'json_pkg', 'description': 'Some JSON utility'},
+              ],
+            },
+          },
+        ),
+      );
+
+      final anon = await fakeTestScenario.createAnonymousTestUser();
+
+      await anon.withBrowserPage((page) async {
+        await page.gotoOrigin('/packages?q=json');
+        final info = await listingPageInfo(page);
+        expect(
+          info.packageNames,
+          [
+            'dart:convert', // SDK package
+            'flutter_driver', // SDK package
+            'json_pkg', // regular package
+          ],
+        );
+      });
+    });
+  });
+}