33 lines
1.1 KiB
C#
33 lines
1.1 KiB
C#
using BuildFlow.Platform.Application.Users.DTOs;
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using BuildFlow.Platform.Application.Users.Queries;
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using MediatR;
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namespace BuildFlow.IM.Integration.Tests;
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/// <summary>
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/// 进程内用户摘要查询处理器。测试前可预置用户展示名和头像，由 MediatR 按用户 ID 批量返回。
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/// </summary>
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public sealed class InMemoryUserSummaryQueryHandler
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: IRequestHandler<GetUserSummariesQuery, IReadOnlyDictionary<Guid, UserSummaryDto>>
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{
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private readonly Dictionary<Guid, UserSummaryDto> _users = new();
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/// <summary>
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/// 预置一个用户摘要。
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/// </summary>
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public void SetUser(Guid userId, string username, string? avatar = null) =>
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_users[userId] = new UserSummaryDto(userId, username, avatar);
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public Task<IReadOnlyDictionary<Guid, UserSummaryDto>> Handle(
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GetUserSummariesQuery request,
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CancellationToken ct)
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{
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IReadOnlyDictionary<Guid, UserSummaryDto> result = request.UserIds
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.Distinct()
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.Where(_users.ContainsKey)
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.ToDictionary(userId => userId, userId => _users[userId]);
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return Task.FromResult(result);
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}
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}
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