Feat/get folder by Id

src/Application/Folders/Queries/GetFolderById.cs

@@ -1,5 +1,8 @@
+using Application.Common.Interfaces;
 using Application.Common.Models.Dtos.Physical;
+using AutoMapper;
 using MediatR;
+using Microsoft.EntityFrameworkCore;
 
 namespace Application.Folders.Queries;
 
@@ -9,4 +12,28 @@ public record Query : IRequest<FolderDto>
  {
  public Guid FolderId { get; init; }
  }
+
+ public class QueryHandler : IRequestHandler<Query, FolderDto>
+ {
+ private readonly IApplicationDbContext _context;
+ private readonly IMapper _mapper;
+
+ public QueryHandler(IApplicationDbContext context, IMapper mapper)
+ {
+ _context = context;
+ _mapper = mapper;
+ }
+
+ public async Task<FolderDto> Handle(Query request, CancellationToken cancellationToken)
+ {
+ var folder = await _context.Folders.FirstOrDefaultAsync(x => x.Id.Equals(request.FolderId), cancellationToken);
+
+ if (folder is null)
+ {
+ throw new KeyNotFoundException("Folder does not exist.");
+ }
+
+ return _mapper.Map<FolderDto>(folder);
+ }
+ }
 }

tests/Application.Tests.Integration/Folders/Queries/GetFolderByIdTests.cs

@@ -0,0 +1,59 @@
+using Application.Folders.Queries;
+using Domain.Entities;
+using FluentAssertions;
+using Xunit;
+
+namespace Application.Tests.Integration.Folders.Queries;
+
+public class GetFolderByIdTests : BaseClassFixture
+{
+ public GetFolderByIdTests(CustomApiFactory apiFactory) : base(apiFactory)
+ {
+ }
+
+ [Fact]
+ public async Task ShouldReturnFolder_WhenThatFolderExists()
+ {
+ // Arrange
+ var department = CreateDepartment();
+ var folder = CreateFolder();
+ var locker = CreateLocker(folder);
+ var room = CreateRoom(department, locker);
+ await AddAsync(room);
+
+ var query = new GetFolderById.Query()
+ {
+ FolderId = folder.Id,
+ };
+
+ // Act
+ var result = await SendAsync(query);
+
+ // Assert
+ result.Id.Should().Be(folder.Id);
+ result.Name.Should().Be(folder.Name);
+
+ // Cleanup
+ Remove(folder);
+ Remove(locker);
+ Remove(room);
+ Remove(await FindAsync<Department>(department.Id));
+ }
+
+ [Fact]
+ public async Task ShouldThrowKeyNotFoundException_WhenThatFolderDoesNotExist()
+ {
+ // Arrange
+ var query = new GetFolderById.Query()
+ {
+ FolderId = Guid.NewGuid(),
+ };
+
+ // Act
+ var action = async () => await SendAsync(query);
+
+ // Assert
+ await action.Should().ThrowAsync<KeyNotFoundException>()
+ .WithMessage("Folder does not exist.");
+ }
+}