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- home_page Feed segment 改接 CommunityController：骨架屏首载、空态 CTA、 错误横幅重试、下拉刷新（失败保留旧列表 + SnackBar）、触底游标翻页 （失败态只走显式重试，不随滚动风暴自动重打） - PostCard 三形态（单图通栏 4:3 / 多图折叠封面 +N 角标 / 纯文字 6 行）+ PostMediaGrid（列数规则 + ink 80% scrim 精算）+ LikeButton（error 族修订 Colors.red，T3-14 纯展示禁用态，ToggleSync 接线留 T3-15/16）+ FeedSkeleton （呼吸动效尊重减弱动态设置）；降级作者统一「宠友」占位 - SignedNetworkImage：预签名 URL 缓存 key 剥离 X-Amz-* 签名参数， RemoteImage 全仓换用（同图不同签名命中同一缓存条目） - feed 域埋点：feed_viewed 聚合曝光（浏览段开/结算于切 Tab、切分段、 退后台、销毁；≥50% 可见 ≥500ms 段内按帖去重，postId 不上报）+ feed_load_failed（refresh/load_more 双路，会话失效不报） - integration_test/feed_live_test.dart：compose 六容器 Linux 桌面真链路 实测入口（PATBOND_FEED_LIVE=1 门控，默认跳过） - 测试 379 → 421（+42）：四态/尾部三态/翻页不丢不重/降级作者/曝光结算 时机/缓存 key/事件属性全覆盖；analyze 0，format 无 diff Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
78 lines
2.8 KiB
Dart
78 lines
2.8 KiB
Dart
import 'package:fake_async/fake_async.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:patbond_flutter/features/community/feed_exposure.dart';
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void main() {
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test('曝光判定：≥50% 驻留满 500ms 记一次，段内按帖去重', () {
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fakeAsync((async) {
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final segment = FeedViewSegment(now: async.getClock(DateTime(2026)).now);
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segment.updateVisibility('p-1', 0.8);
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async.elapse(const Duration(milliseconds: 600));
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expect(segment.impressionCount, 1);
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// 再次可见不重复计。
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segment.updateVisibility('p-1', 0.9);
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async.elapse(const Duration(milliseconds: 600));
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expect(segment.impressionCount, 1);
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});
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});
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test('快速滑过（<500ms 跌破阈值）不计曝光', () {
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fakeAsync((async) {
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final segment = FeedViewSegment(now: async.getClock(DateTime(2026)).now);
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segment.updateVisibility('p-1', 0.8);
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async.elapse(const Duration(milliseconds: 300));
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segment.updateVisibility('p-1', 0.2); // 滚出视口
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async.elapse(const Duration(seconds: 1));
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expect(segment.impressionCount, 0);
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});
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});
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test('可见面积不足 50% 不起计时', () {
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fakeAsync((async) {
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final segment = FeedViewSegment(now: async.getClock(DateTime(2026)).now);
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segment.updateVisibility('p-1', 0.49);
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async.elapse(const Duration(seconds: 1));
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expect(segment.impressionCount, 0);
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});
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});
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test('结算：冻结计数、取消在途驻留、幂等只出一份', () {
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fakeAsync((async) {
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final clock = async.getClock(DateTime(2026));
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final segment = FeedViewSegment(now: clock.now);
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segment.updateVisibility('p-1', 1);
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async.elapse(const Duration(milliseconds: 600));
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segment.updateVisibility('p-2', 1); // 在途驻留，结算时未满 500ms
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async.elapse(const Duration(milliseconds: 100));
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segment.recordRefresh();
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segment.recordLoadMore();
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segment.recordLoadMore();
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final summary = segment.settle();
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expect(summary, isNotNull);
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expect(summary!.impressionCount, 1);
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expect(summary.refreshCount, 1);
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expect(summary.loadMoreCount, 2);
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expect(summary.durationMs, 700);
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// 幂等：二次结算无第二条；结算后计数与曝光全部作废。
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expect(segment.settle(), isNull);
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segment.updateVisibility('p-3', 1);
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async.elapse(const Duration(seconds: 1));
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expect(segment.impressionCount, 1);
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});
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});
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test('durationMs 上限截断 30 分钟（防挂机污染 H8）', () {
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fakeAsync((async) {
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final segment = FeedViewSegment(now: async.getClock(DateTime(2026)).now);
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async.elapse(const Duration(minutes: 45));
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expect(
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segment.settle()!.durationMs,
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const Duration(minutes: 30).inMilliseconds,
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);
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});
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});
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}
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