feat: 实现完整的多租户公告管理系统
核心功能： - 公告状态机（草稿/已发布/已撤销）支持发布、撤销和重新发布 - 发布者范围区分平台级和租户级公告 - 目标受众定向推送（全部租户/指定角色/指定用户） - 平台管理、租户管理和应用端查询API - 已读/未读管理和未读统计 技术实现： - CQRS+DDD架构，清晰的领域边界和事件驱动 - 查询性能优化：数据库端排序和限制，估算策略减少内存占用 - 并发控制：修复RowVersion配置（IsRowVersion→IsConcurrencyToken） - 完整的FluentValidation验证器和输入保护 测试验证： - 36个测试全部通过（27单元+9集成） - 性能测试达标（1000条数据<5秒） - 代码质量评级A（优秀） 文档： - 完整的ADR、API文档和迁移指南 - 交付报告和技术债务记录
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using FluentAssertions;
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using Moq;
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using TakeoutSaaS.Application.App.Tenants.Handlers;
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using TakeoutSaaS.Application.App.Tenants.Queries;
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using TakeoutSaaS.Application.Tests.TestUtilities;
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using TakeoutSaaS.Domain.Tenants.Entities;
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using TakeoutSaaS.Domain.Tenants.Repositories;
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using TakeoutSaaS.Shared.Abstractions.Security;
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using TakeoutSaaS.Shared.Abstractions.Tenancy;
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namespace TakeoutSaaS.Application.Tests.App.Tenants.Handlers;
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public sealed class GetAnnouncementByIdQueryHandlerTests
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{
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[Fact]
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public async Task GivenAnnouncementMissing_WhenHandle_ThenReturnsNull()
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{
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// Arrange
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var tenantProvider = new Mock<ITenantProvider>();
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tenantProvider.Setup(x => x.GetCurrentTenantId()).Returns(99);
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var announcementRepository = new Mock<ITenantAnnouncementRepository>();
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announcementRepository
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.Setup(x => x.FindByIdInScopeAsync(99, 500, It.IsAny<CancellationToken>()))
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.ReturnsAsync((TenantAnnouncement?)null);
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var readRepository = new Mock<ITenantAnnouncementReadRepository>();
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var handler = new GetAnnouncementByIdQueryHandler(
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announcementRepository.Object,
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readRepository.Object,
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tenantProvider.Object);
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// Act
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var result = await handler.Handle(new GetAnnouncementByIdQuery { AnnouncementId = 500 }, CancellationToken.None);
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// Assert
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result.Should().BeNull();
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}
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[Fact]
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public async Task GivenTargetNotMatched_WhenHandle_ThenReturnsNullAndSkipsReadLookup()
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{
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// Arrange
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var tenantProvider = new Mock<ITenantProvider>();
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tenantProvider.Setup(x => x.GetCurrentTenantId()).Returns(100);
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var currentUserAccessor = new Mock<ICurrentUserAccessor>();
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currentUserAccessor.SetupGet(x => x.UserId).Returns(123);
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currentUserAccessor.SetupGet(x => x.IsAuthenticated).Returns(true);
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var announcement = AnnouncementTestData.CreateAnnouncement(1, 100, 1, DateTime.UtcNow);
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announcement.TargetType = "SPECIFIC_USERS";
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announcement.TargetParameters = "{\"userIds\":[999]}";
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var announcementRepository = new Mock<ITenantAnnouncementRepository>();
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announcementRepository
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.Setup(x => x.FindByIdInScopeAsync(100, 1, It.IsAny<CancellationToken>()))
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.ReturnsAsync(announcement);
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var readRepository = new Mock<ITenantAnnouncementReadRepository>();
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var handler = new GetAnnouncementByIdQueryHandler(
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announcementRepository.Object,
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readRepository.Object,
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tenantProvider.Object,
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currentUserAccessor.Object);
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// Act
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var result = await handler.Handle(new GetAnnouncementByIdQuery { AnnouncementId = 1 }, CancellationToken.None);
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// Assert
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result.Should().BeNull();
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readRepository.Verify(x => x.GetByAnnouncementAsync(
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It.IsAny<long>(),
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It.IsAny<IEnumerable<long>>(),
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It.IsAny<long?>(),
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It.IsAny<CancellationToken>()), Times.Never);
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}
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[Fact]
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public async Task GivenUserReadRecord_WhenHandle_ThenReturnsDtoWithReadState()
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{
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// Arrange
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var tenantProvider = new Mock<ITenantProvider>();
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tenantProvider.Setup(x => x.GetCurrentTenantId()).Returns(200);
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var currentUserAccessor = new Mock<ICurrentUserAccessor>();
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currentUserAccessor.SetupGet(x => x.UserId).Returns(321);
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currentUserAccessor.SetupGet(x => x.IsAuthenticated).Returns(true);
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var announcement = AnnouncementTestData.CreateAnnouncement(10, 200, 1, DateTime.UtcNow);
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var readAt = DateTime.UtcNow.AddMinutes(-3);
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var announcementRepository = new Mock<ITenantAnnouncementRepository>();
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announcementRepository
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.Setup(x => x.FindByIdInScopeAsync(200, 10, It.IsAny<CancellationToken>()))
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.ReturnsAsync(announcement);
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var readRepository = new Mock<ITenantAnnouncementReadRepository>();
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readRepository
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.Setup(x => x.GetByAnnouncementAsync(200, It.IsAny<IEnumerable<long>>(), 321, It.IsAny<CancellationToken>()))
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.ReturnsAsync(new List<TenantAnnouncementRead>
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{
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new() { AnnouncementId = 10, TenantId = 200, UserId = 321, ReadAt = readAt }
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});
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var handler = new GetAnnouncementByIdQueryHandler(
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announcementRepository.Object,
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readRepository.Object,
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tenantProvider.Object,
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currentUserAccessor.Object);
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// Act
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var result = await handler.Handle(new GetAnnouncementByIdQuery { AnnouncementId = 10 }, CancellationToken.None);
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// Assert
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result.Should().NotBeNull();
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result!.IsRead.Should().BeTrue();
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result.ReadAt.Should().BeCloseTo(readAt, TimeSpan.FromSeconds(1));
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}
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}
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@@ -0,0 +1,160 @@
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using FluentAssertions;
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using Moq;
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using TakeoutSaaS.Application.App.Tenants.Handlers;
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using TakeoutSaaS.Application.App.Tenants.Queries;
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using TakeoutSaaS.Application.Tests.TestUtilities;
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using TakeoutSaaS.Domain.Tenants.Repositories;
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using TakeoutSaaS.Shared.Abstractions.Security;
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using TakeoutSaaS.Shared.Abstractions.Tenancy;
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namespace TakeoutSaaS.Application.Tests.App.Tenants.Handlers;
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public sealed class GetTenantsAnnouncementsQueryHandlerTests
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{
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[Fact]
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public async Task GivenQuery_WhenHandle_ThenUsesTenantProviderAndOrdersAndPaginates()
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{
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// Arrange
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var tenantProvider = new Mock<ITenantProvider>();
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tenantProvider.Setup(x => x.GetCurrentTenantId()).Returns(42);
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var currentUserAccessor = new Mock<ICurrentUserAccessor>();
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currentUserAccessor.SetupGet(x => x.UserId).Returns(0);
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currentUserAccessor.SetupGet(x => x.IsAuthenticated).Returns(false);
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var announcements = new List<TakeoutSaaS.Domain.Tenants.Entities.TenantAnnouncement>
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{
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AnnouncementTestData.CreateAnnouncement(1, 42, priority: 1, effectiveFrom: DateTime.UtcNow.AddDays(-1)),
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AnnouncementTestData.CreateAnnouncement(2, 42, priority: 2, effectiveFrom: DateTime.UtcNow.AddDays(-3)),
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AnnouncementTestData.CreateAnnouncement(3, 42, priority: 2, effectiveFrom: DateTime.UtcNow.AddDays(-1)),
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AnnouncementTestData.CreateAnnouncement(4, 42, priority: 0, effectiveFrom: DateTime.UtcNow)
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};
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// 模拟数据库端排序：按 priority DESC, effectiveFrom DESC
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var sortedAnnouncements = announcements
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.OrderByDescending(x => x.Priority)
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.ThenByDescending(x => x.EffectiveFrom)
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.ToList();
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var announcementRepository = new Mock<ITenantAnnouncementRepository>();
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announcementRepository
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.Setup(x => x.SearchAsync(
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It.IsAny<long>(),
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It.IsAny<TakeoutSaaS.Domain.Tenants.Enums.AnnouncementStatus?>(),
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It.IsAny<TakeoutSaaS.Domain.Tenants.Enums.TenantAnnouncementType?>(),
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It.IsAny<bool?>(),
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It.IsAny<DateTime?>(),
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It.IsAny<DateTime?>(),
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It.IsAny<DateTime?>(),
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It.IsAny<bool>(),
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It.IsAny<int?>(),
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It.IsAny<CancellationToken>()))
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.ReturnsAsync(sortedAnnouncements);
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var announcementReadRepository = new Mock<ITenantAnnouncementReadRepository>();
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announcementReadRepository
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.Setup(x => x.GetByAnnouncementAsync(
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It.IsAny<long>(),
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It.IsAny<IEnumerable<long>>(),
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It.IsAny<long?>(),
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It.IsAny<CancellationToken>()))
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.ReturnsAsync(Array.Empty<TakeoutSaaS.Domain.Tenants.Entities.TenantAnnouncementRead>());
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var handler = new GetTenantsAnnouncementsQueryHandler(
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announcementRepository.Object,
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announcementReadRepository.Object,
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tenantProvider.Object,
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currentUserAccessor.Object);
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var query = new GetTenantsAnnouncementsQuery
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{
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TenantId = 999,
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Page = 2,
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PageSize = 2
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};
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// Act
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var result = await handler.Handle(query, CancellationToken.None);
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// Assert
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announcementRepository.Verify(x => x.SearchAsync(
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42,
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query.Status,
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query.AnnouncementType,
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query.IsActive,
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query.EffectiveFrom,
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query.EffectiveTo,
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null,
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true,
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12, // estimatedLimit = page * size * 3 = 2 * 2 * 3 = 12
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It.IsAny<CancellationToken>()), Times.Once);
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result.TotalCount.Should().Be(4);
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result.Items.Select(x => x.Id).Should().Equal(1, 4);
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result.Page.Should().Be(2);
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result.PageSize.Should().Be(2);
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}
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[Fact]
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public async Task GivenOnlyEffective_WhenHandle_ThenFiltersScheduledPublish()
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{
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// Arrange
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var tenantProvider = new Mock<ITenantProvider>();
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tenantProvider.Setup(x => x.GetCurrentTenantId()).Returns(42);
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var announcement1 = AnnouncementTestData.CreateAnnouncement(1, 42, priority: 1, effectiveFrom: DateTime.UtcNow.AddDays(-1));
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announcement1.ScheduledPublishAt = DateTime.UtcNow.AddMinutes(-10);
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var announcement2 = AnnouncementTestData.CreateAnnouncement(2, 42, priority: 1, effectiveFrom: DateTime.UtcNow.AddDays(-1));
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announcement2.ScheduledPublishAt = DateTime.UtcNow.AddMinutes(30);
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var announcements = new List<TakeoutSaaS.Domain.Tenants.Entities.TenantAnnouncement>
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{
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announcement1,
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announcement2
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};
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var announcementRepository = new Mock<ITenantAnnouncementRepository>();
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announcementRepository
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.Setup(x => x.SearchAsync(
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It.IsAny<long>(),
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It.IsAny<TakeoutSaaS.Domain.Tenants.Enums.AnnouncementStatus?>(),
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It.IsAny<TakeoutSaaS.Domain.Tenants.Enums.TenantAnnouncementType?>(),
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It.IsAny<bool?>(),
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It.IsAny<DateTime?>(),
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It.IsAny<DateTime?>(),
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It.IsAny<DateTime?>(),
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It.IsAny<bool>(),
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It.IsAny<int?>(),
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It.IsAny<CancellationToken>()))
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.ReturnsAsync(announcements);
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var announcementReadRepository = new Mock<ITenantAnnouncementReadRepository>();
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announcementReadRepository
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.Setup(x => x.GetByAnnouncementAsync(
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It.IsAny<long>(),
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It.IsAny<IEnumerable<long>>(),
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It.IsAny<long?>(),
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It.IsAny<CancellationToken>()))
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.ReturnsAsync(Array.Empty<TakeoutSaaS.Domain.Tenants.Entities.TenantAnnouncementRead>());
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var handler = new GetTenantsAnnouncementsQueryHandler(
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announcementRepository.Object,
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announcementReadRepository.Object,
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tenantProvider.Object);
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var query = new GetTenantsAnnouncementsQuery
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{
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OnlyEffective = true,
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Page = 1,
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PageSize = 10
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};
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// Act
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var result = await handler.Handle(query, CancellationToken.None);
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// Assert
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result.Items.Should().ContainSingle();
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result.Items[0].Id.Should().Be(1);
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}
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}
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using FluentAssertions;
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using Moq;
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using TakeoutSaaS.Application.App.Tenants.Handlers;
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using TakeoutSaaS.Application.App.Tenants.Queries;
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using TakeoutSaaS.Application.Tests.TestUtilities;
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using TakeoutSaaS.Domain.Tenants.Enums;
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using TakeoutSaaS.Domain.Tenants.Repositories;
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using TakeoutSaaS.Shared.Abstractions.Security;
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using TakeoutSaaS.Shared.Abstractions.Tenancy;
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namespace TakeoutSaaS.Application.Tests.App.Tenants.Handlers;
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public sealed class GetUnreadAnnouncementsQueryHandlerTests
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{
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[Fact]
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public async Task GivenUnreadAnnouncements_WhenHandle_ThenUsesTenantProviderAndPaginates()
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{
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// Arrange
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var tenantProvider = new Mock<ITenantProvider>();
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tenantProvider.Setup(x => x.GetCurrentTenantId()).Returns(55);
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var currentUserAccessor = new Mock<ICurrentUserAccessor>();
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currentUserAccessor.SetupGet(x => x.UserId).Returns(0);
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currentUserAccessor.SetupGet(x => x.IsAuthenticated).Returns(false);
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var announcements = new List<TakeoutSaaS.Domain.Tenants.Entities.TenantAnnouncement>
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{
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AnnouncementTestData.CreateAnnouncement(1, 55, priority: 1, effectiveFrom: DateTime.UtcNow.AddDays(-1), status: AnnouncementStatus.Published, isActive: true),
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AnnouncementTestData.CreateAnnouncement(2, 55, priority: 3, effectiveFrom: DateTime.UtcNow.AddDays(-2), status: AnnouncementStatus.Published, isActive: true),
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AnnouncementTestData.CreateAnnouncement(3, 55, priority: 2, effectiveFrom: DateTime.UtcNow, status: AnnouncementStatus.Published, isActive: true)
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};
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var announcementRepository = new Mock<ITenantAnnouncementRepository>();
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announcementRepository
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.Setup(x => x.SearchUnreadAsync(
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It.IsAny<long>(),
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It.IsAny<long?>(),
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It.IsAny<AnnouncementStatus?>(),
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It.IsAny<bool?>(),
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It.IsAny<DateTime?>(),
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It.IsAny<CancellationToken>()))
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.ReturnsAsync(announcements);
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var handler = new GetUnreadAnnouncementsQueryHandler(
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announcementRepository.Object,
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tenantProvider.Object,
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currentUserAccessor.Object);
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var query = new GetUnreadAnnouncementsQuery
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{
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Page = 1,
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PageSize = 2
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};
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// Act
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var result = await handler.Handle(query, CancellationToken.None);
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// Assert
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announcementRepository.Verify(x => x.SearchUnreadAsync(
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55,
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null,
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AnnouncementStatus.Published,
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true,
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It.IsAny<DateTime?>(),
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It.IsAny<CancellationToken>()), Times.Once);
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result.Items.Select(x => x.Id).Should().Equal(2, 3);
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result.TotalCount.Should().Be(3);
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result.Page.Should().Be(1);
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result.PageSize.Should().Be(2);
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}
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}
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