feat(degree): /degree/degree_list returns owned ids

SVSim.UnitTests/Controllers/DegreeControllerListTests.cs

@@ -0,0 +1,49 @@
+using System.Net;
+using System.Text;
+using System.Text.Json;
+using NUnit.Framework;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.DependencyInjection;
+using SVSim.Database;
+using SVSim.Database.Models;
+using SVSim.UnitTests.Infrastructure;
+
+namespace SVSim.UnitTests.Controllers;
+
+public class DegreeControllerListTests
+{
+    [Test]
+    public async Task DegreeList_returns_owned_ids_wrapped()
+    {
+        using var factory = new SVSimTestFactory();
+        long viewerId = await factory.SeedViewerAsync(tutorialState: 0);
+
+        using (var scope = factory.Services.CreateScope())
+        {
+            var db = scope.ServiceProvider.GetRequiredService<SVSimDbContext>();
+            var viewer = await db.Viewers.Include(v => v.Degrees).FirstAsync(v => v.Id == viewerId);
+            var d100 = await db.Set<DegreeEntry>().FirstOrDefaultAsync(d => d.Id == 100)
+                       ?? db.Set<DegreeEntry>().Add(new DegreeEntry { Id = 100 }).Entity;
+            var d101 = await db.Set<DegreeEntry>().FirstOrDefaultAsync(d => d.Id == 101)
+                       ?? db.Set<DegreeEntry>().Add(new DegreeEntry { Id = 101 }).Entity;
+            viewer.Degrees.Add(d100);
+            viewer.Degrees.Add(d101);
+            await db.SaveChangesAsync();
+        }
+
+        using var client = factory.CreateAuthenticatedClient(viewerId);
+        var requestJson = """{"degree_id":0,"viewer_id":"0","steam_id":0,"steam_session_ticket":""}""";
+        var response = await client.PostAsync("/degree/degree_list",
+            new StringContent(requestJson, Encoding.UTF8, "application/json"));
+
+        Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.OK));
+
+        var body = await response.Content.ReadAsStringAsync();
+        using var doc = JsonDocument.Parse(body);
+        var ids = doc.RootElement.GetProperty("user_degree_list").EnumerateArray()
+            .Select(e => e.GetProperty("degree_id").GetInt32())
+            .ToList();
+        Assert.That(ids, Does.Contain(100));
+        Assert.That(ids, Does.Contain(101));
+    }
+}