浅念
51 lines
1.8 KiB
Dart
51 lines
1.8 KiB
Dart
/// 相册时区格式化纯逻辑测试（P3 计划 Task 4）。
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///
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/// 覆盖：UTC 瞬间 → Asia/Shanghai 墙钟展示、无效时区回退 UTC、
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/// 墙钟 → UTC 提交往返一致、IANA 时区名校验。
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library;
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import 'package:flutter_test/flutter_test.dart';
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import 'package:intl/date_symbol_data_local.dart';
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import 'package:photo_live/features/albums/album_format.dart';
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void main() {
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setUpAll(initializeDateFormatting);
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test('UTC 瞬间按 Asia/Shanghai 展示（intl 格式化）', () {
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final utc = DateTime.utc(2026, 9, 18, 6, 30);
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expect(formatAlbumDateTime(utc, 'Asia/Shanghai', 'en'), '2026/9/18 14:30');
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});
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test('非 Asia/Shanghai 时区亦按各自墙钟展示（America/New_York）', () {
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final utc = DateTime.utc(2026, 9, 18, 6, 30);
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// 9 月为纽约夏令时 UTC-4 → 02:30。
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expect(
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formatAlbumDateTime(utc, 'America/New_York', 'en'),
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'2026/9/18 02:30',
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);
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});
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test('无效时区回退 UTC 展示', () {
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final utc = DateTime.utc(2026, 9, 18, 6, 30);
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expect(formatAlbumDateTime(utc, 'Mars/Olympus', 'en'), '2026/9/18 06:30');
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});
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test('墙钟 → UTC 往返一致（表单提交与回显）', () {
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final naive = DateTime(2026, 9, 18, 14, 30);
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final utc = albumWallClockToUtc(naive, 'Asia/Shanghai');
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expect(utc.toUtc(), DateTime.utc(2026, 9, 18, 6, 30));
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final zoned = tryToAlbumZone(utc, 'Asia/Shanghai');
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expect(zoned, isNotNull);
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expect(zoned!.hour, 14);
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expect(zoned.minute, 30);
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});
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test('isValidTimezone：空/非法拒绝，合法通过', () {
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expect(isValidTimezone(''), isFalse);
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expect(isValidTimezone(' '), isFalse);
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expect(isValidTimezone('Not/AZone'), isFalse);
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expect(isValidTimezone('Asia/Shanghai'), isTrue);
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expect(isValidTimezone('UTC'), isTrue);
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});
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}
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