perf(extensions): load store summaries and check updates asynchronously (#1583)

ui/flutter/test/api/gopeed_site_api_test.dart

@@ -0,0 +1,78 @@
+import 'dart:async';
+import 'dart:convert';
+
+import 'package:dio/dio.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:gopeed/api/api.dart' as api;
+import 'package:gopeed/api/gopeed_site_api.dart';
+import 'package:gopeed/core/network/gopeed/gopeed_transport.dart';
+
+void main() {
+  test('summary requests are shared and cached; explicit refresh requests fresh data', () async {
+    final pending = Completer<Response<String>>();
+    final transport = _Transport()..onProxy = (_) => pending.future;
+    api.setTransportForTesting(transport);
+    final site = GopeedSiteApi.instance;
+    final first = site.getExtensions(query: 'cache-test', forceRefresh: true);
+    final second = site.getExtensions(query: 'cache-test');
+    expect(transport.urls.length, 1);
+    expect(Uri.parse(transport.urls.single).queryParameters['view'], 'summary');
+    pending.complete(
+      _response({
+        'data': [
+          {'id': 'test'},
+        ],
+      }),
+    );
+    expect((await first).data.single.hasDetails, isFalse);
+    await second;
+    await site.getExtensions(query: 'cache-test');
+    expect(transport.urls.length, 1);
+    await site.getExtensions(query: 'cache-test', forceRefresh: true);
+    expect(transport.urls.length, 2);
+  });
+
+  test('failed lists are not cached', () async {
+    final transport = _Transport()..onProxy = (_) => Future.error(StateError('offline'));
+    api.setTransportForTesting(transport);
+    final site = GopeedSiteApi.instance;
+    await expectLater(site.getExtensions(query: 'error-test'), throwsStateError);
+    transport.onProxy = (_) async => _response({
+      'data': [
+        {'id': 'recovered'},
+      ],
+    });
+    expect((await site.getExtensions(query: 'error-test')).data.single.id, 'recovered');
+    expect(transport.urls.length, 2);
+  });
+
+  test('detail IDs are encoded once and a null README is still loaded detail', () async {
+    final transport = _Transport()..onProxy = (_) async => _response({'id': '开发者@name', 'readme': null});
+    api.setTransportForTesting(transport);
+    final result = await GopeedSiteApi.instance.getExtension('开发者@name', version: '1.2.3');
+    final uri = Uri.parse(transport.urls.single);
+    expect(uri.pathSegments, ['api', 'extensions', '开发者@name']);
+    expect(uri.queryParameters['version'], '1.2.3');
+    expect(result.hasDetails, isTrue);
+  });
+}
+
+Response<String> _response(Map<String, dynamic> json) => Response(
+  requestOptions: RequestOptions(path: '/test'),
+  data: jsonEncode(json),
+  statusCode: 200,
+);
+
+class _Transport implements GopeedTransport {
+  final urls = <String>[];
+  Future<Response<String>> Function(String) onProxy = (_) async => _response({'data': []});
+
+  @override
+  Future<Response<String>> proxyRequest(String uri, {dynamic data, Options? options}) {
+    urls.add(uri);
+    return onProxy(uri);
+  }
+
+  @override
+  dynamic noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
+}