shoc-backend/Api.SeaHavenIndustries.Tests/CommentDataServiceTests.cs

using Data.SeaHavenIndustries;
using FluentAssertions;
using Microsoft.EntityFrameworkCore;
using SeaHaven.DataServices.Implementation;
using Xunit;

namespace Api.SeaHavenIndustries.Tests;

public class CommentDataServiceTests
{
    private static ApplicationDbContext NewContext()
    {
        var options = new DbContextOptionsBuilder<ApplicationDbContext>()
            .UseInMemoryDatabase(Guid.NewGuid().ToString())
            .Options;
        return new ApplicationDbContext(options);
    }

    [Fact]
    public async Task DeleteAllForWorkOrderAsync_RemovesOnlyThatWorkOrdersCommentsInOneSave()
    {
        await using var context = NewContext();
        context.Comments.AddRange(
            new Comments { Id = 1, WorkerOrderId = 5, Commenttext = "a" },
            new Comments { Id = 2, WorkerOrderId = 5, Commenttext = "b" },
            new Comments { Id = 3, WorkerOrderId = 9, Commenttext = "c" });
        await context.SaveChangesAsync();
        var service = new CommentDataService(context);

        await service.DeleteAllForWorkOrderAsync(5);

        context.Comments.Select(c => c.Id).Should().Equal(new[] { 3 });
    }

    [Fact]
    public async Task DeleteAllForWorkOrderAsync_WithNoComments_DoesNothing()
    {
        await using var context = NewContext();
        context.Comments.Add(new Comments { Id = 1, WorkerOrderId = 9, Commenttext = "untouched" });
        await context.SaveChangesAsync();
        var service = new CommentDataService(context);

        await service.DeleteAllForWorkOrderAsync(5);

        context.Comments.Select(c => c.Id).Should().Equal(new[] { 1 });
    }
}