Add LocalizedDatasetPrototype (#28310)

Content.Tests/Shared/LocalizedDatasetPrototypeTest.cs

@@ -0,0 +1,59 @@
+using System;
+using Content.Shared.Dataset;
+using NUnit.Framework;
+using Robust.Shared.Collections;
+using Robust.Shared.IoC;
+using Robust.Shared.Prototypes;
+using Robust.Shared.Serialization.Manager;
+
+namespace Content.Tests.Shared;
+
+[TestFixture]
+[TestOf(typeof(LocalizedDatasetPrototype))]
+public sealed class LocalizedDatasetPrototypeTest : ContentUnitTest
+{
+    private IPrototypeManager _prototypeManager;
+
+    [OneTimeSetUp]
+    public void OneTimeSetup()
+    {
+        IoCManager.Resolve<ISerializationManager>().Initialize();
+        _prototypeManager = IoCManager.Resolve<IPrototypeManager>();
+        _prototypeManager.Initialize();
+        _prototypeManager.LoadString(TestPrototypes);
+        _prototypeManager.ResolveResults();
+    }
+
+    private const string TestPrototypes = @"
+- type: localizedDataset
+  id: Test
+  values:
+    prefix: test-dataset-
+    count: 4
+";
+
+    [Test]
+    public void LocalizedDatasetTest()
+    {
+        var testPrototype = _prototypeManager.Index<LocalizedDatasetPrototype>("Test");
+        var values = new ValueList<string>();
+        foreach (var value in testPrototype.Values)
+        {
+            values.Add(value);
+        }
+
+        // Make sure we get the right number of values
+        Assert.That(values, Has.Count.EqualTo(4));
+
+        // Make sure indexing works as expected
+        Assert.That(values[0], Is.EqualTo("test-dataset-1"));
+        Assert.That(values[1], Is.EqualTo("test-dataset-2"));
+        Assert.That(values[2], Is.EqualTo("test-dataset-3"));
+        Assert.That(values[3], Is.EqualTo("test-dataset-4"));
+        Assert.Throws<IndexOutOfRangeException>(() => { var x = values[4]; });
+        Assert.Throws<IndexOutOfRangeException>(() => { var x = values[-1]; });
+
+        // Make sure that the enumerator gets all of the values
+        Assert.That(testPrototype.Values[testPrototype.Values.Count], Is.EqualTo("test-dataset-4"));
+    }
+}