已完成“选课候补与自动递补”完整流程。
学生端:满员后可加入/取消候补,展示候补顺位和当前候补人数。 自动递补:退课释放名额后,按候补时间顺序重新校验学籍、范围、学分及时间冲突;不合格者自动失效并继续下一位。 管理端:教学班显示候补人数,名单抽屉提供候补队列及移出操作。 状态通知:递补成功、资格失效、批次关闭、管理员移出均会通知学生。 并发安全:退课和递补放在 Serializable 事务中执行。 数据库:已补充 SQLite 开发迁移和 MySQL 正式迁移。
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@@ -31,6 +31,21 @@ public sealed class CourseSelectionRulesTests
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Assert.False(CourseSelectionRules.CanWithdraw(round, now.AddHours(1)));
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}
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[Fact]
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public void Waitlist_promotion_uses_withdrawal_window_and_retake_capacity()
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{
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var now = new DateTime(2026, 7, 24, 8, 0, 0, DateTimeKind.Utc);
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var round = CreateRound(now.AddHours(-1), now.AddHours(1));
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round.WithdrawalEndsAt = now.AddHours(2);
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Assert.True(CourseSelectionRules.CanPromoteWaitlist(round, now));
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Assert.Equal(60, CourseSelectionRules.EffectiveCapacity(60, false));
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Assert.Equal(69, CourseSelectionRules.EffectiveCapacity(60, true));
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round.Status = CourseSelectionRoundStatus.Closed;
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Assert.False(CourseSelectionRules.CanPromoteWaitlist(round, now));
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}
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[Fact]
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public void Schedule_conflict_detects_overlapping_weeks_and_periods()
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{
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