Add TestServerFactory

tests/Tgstation.Server.Host.Tests/TestServerFactory.cs

@@ -0,0 +1,32 @@
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using System;
+
+namespace Tgstation.Server.Host.Tests
+{
+	/// <summary>
+	/// Tests for <see cref="ServerFactory"/>
+	/// </summary>
+	[TestClass]
+	public sealed class TestServerFactory
+	{
+		[TestMethod]
+		public void TestWorksWithoutUpdatePath()
+		{
+			var factory = new ServerFactory();
+
+			Assert.ThrowsException<ArgumentNullException>(() => factory.CreateServer(null, null));
+			factory.CreateServer(Array.Empty<string>(), null);
+		}
+
+		[TestMethod]
+		public void TestWorksWithUpdatePath()
+		{
+			var factory = new ServerFactory();
+			const string Path = "/test";
+
+			Assert.ThrowsException<ArgumentNullException>(() => factory.CreateServer(null, null));
+			Assert.ThrowsException<ArgumentNullException>(() => factory.CreateServer(null, Path));
+			factory.CreateServer(Array.Empty<string>(), Path);
+		}
+	}
+}