Эндпоинты

backend/Tests/Stories/UnitTests/DeleteStoryCommandHandlerTests.cs

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+using FluentAssertions;
+using Knot.Modules.Stories.Application.Stories.Commands.DeleteStory;
+using Knot.Modules.Stories.Domain;
+using Knot.Shared.Kernel;
+using Knot.Modules.Stories.Application.Abstractions;
+using NSubstitute;
+using Xunit;
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace Knot.Modules.Stories.UnitTests;
+
+public class DeleteStoryCommandHandlerTests
+{
+    private readonly IStoryRepository _storyRepository;
+    private readonly DeleteStoryCommandHandler _handler;
+
+    public DeleteStoryCommandHandlerTests()
+    {
+        _storyRepository = Substitute.For<IStoryRepository>();
+        _handler = new DeleteStoryCommandHandler(_storyRepository);
+    }
+
+    [Fact]
+    public async Task Handle_ShouldReturnError_WhenStoryNotFound()
+    {
+        // Arrange
+        var command = new DeleteStoryCommand(Guid.NewGuid(), Guid.NewGuid());
+        _storyRepository.GetByIdAsync(command.StoryId, Arg.Any<CancellationToken>()).Returns((Story?)null);
+
+        // Act
+        var result = await _handler.Handle(command, CancellationToken.None);
+
+        // Assert
+        result.IsFailure.Should().BeTrue();
+        result.Error.Should().Be(StoryErrors.StoryNotFound);
+    }
+
+    [Fact]
+    public async Task Handle_ShouldReturnError_WhenUserIsNotOwner()
+    {
+        // Arrange
+        var ownerId = Guid.NewGuid();
+        var viewerId = Guid.NewGuid();
+        var story = Story.Create(ownerId, StoryType.Text, null, "Content", null);
+        var command = new DeleteStoryCommand(viewerId, story.Id);
+
+        _storyRepository.GetByIdAsync(command.StoryId, Arg.Any<CancellationToken>()).Returns(story);
+
+        // Act
+        var result = await _handler.Handle(command, CancellationToken.None);
+
+        // Assert
+        result.IsFailure.Should().BeTrue();
+        result.Error.Should().Be(StoryErrors.Unauthorized);
+    }
+
+    [Fact]
+    public async Task Handle_ShouldSucceed_WhenOwnerDeletes()
+    {
+        // Arrange
+        var ownerId = Guid.NewGuid();
+        var story = Story.Create(ownerId, StoryType.Text, null, "Content", null);
+        var command = new DeleteStoryCommand(ownerId, story.Id);
+
+        _storyRepository.GetByIdAsync(command.StoryId, Arg.Any<CancellationToken>()).Returns(story);
+
+        // Act
+        var result = await _handler.Handle(command, CancellationToken.None);
+
+        // Assert
+        result.IsSuccess.Should().BeTrue();
+        await _storyRepository.Received(1).DeleteAsync(story, Arg.Any<CancellationToken>());
+    }
+}