backend/Gridient.Core.Tests/Features/Users/Queries/GetUserByIdQueryHandlerTests.cs - master - softailor/gridient

backend/Gridient.Core.Tests/Features/Users/Queries/GetUserByIdQueryHandlerTests.cs

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18 фев 2026, 10:19

18 фев 2026, 10:191e6c4f8

using FluentAssertions;
using Gridient.Core.Features.Users.Queries;
using Gridient.Core.Models;
using Gridient.Core.Services.Interfaces;
using Gridient.Core.Tests.Helpers.TestDataBuilders;
using Moq;
using Xunit;
using UserModel = Gridient.Core.Models.User;

namespace Gridient.Core.Tests.Features.Users.Queries
{
    public class GetUserByIdQueryHandlerTests
    {
        private readonly Mock<IUserRepository> _userRepositoryMock;
        private readonly GetUserByIdQueryHandler _handler;

        public GetUserByIdQueryHandlerTests()
        {
            _userRepositoryMock = new Mock<IUserRepository>();
            _handler = new GetUserByIdQueryHandler(_userRepositoryMock.Object);
        }

        #region Handle

        /// <summary>
        /// Проверяет, что handler создается корректно
        /// </summary>
        [Fact]
        public void Constructor_ShouldCreateHandler()
        {
            // Assert
            _handler.Should().NotBeNull();
        }

        /// <summary>
        /// Проверяет, что handler использует правильный тип запроса
        /// </summary>
        [Fact]
        public void Handler_ImplementsCorrectInterface()
        {
            // Assert
            _handler.Should().BeAssignableTo<MediatR.IRequestHandler<GetUserByIdQuery, UserModel>>();
        }

        /// <summary>
        /// Проверяет, что Handle возвращает пользователя по ID
        /// </summary>
        [Fact]
        public async Task Handle_WithValidUserId_ShouldReturnUser()
        {
            // Arrange
            var userId = 1;
            var query = new GetUserByIdQuery(userId);
            var expectedUser = UserServiceTestDataBuilder.CreateUser(id: userId, login: "testuser");

            _userRepositoryMock
                .Setup(x => x.GetByIdAsync(userId, It.IsAny<CancellationToken>()))
                .ReturnsAsync(expectedUser);

            // Act
            var result = await _handler.Handle(query, CancellationToken.None);

            // Assert
            result.Should().NotBeNull();
            result.Should().BeEquivalentTo(expectedUser);
            _userRepositoryMock.Verify(x => x.GetByIdAsync(userId, It.IsAny<CancellationToken>()), Times.Once);
        }

        #endregion
    }
}