YAML unit tests for VersionConverter

tests/Tgstation.Server.Host.Tests/Extensions/Converters/TestVersionConverter.cs

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+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using System;
+using Tgstation.Server.Api;
+using YamlDotNet.Serialization;
+
+namespace Tgstation.Server.Host.Extensions.Converters.Tests
+{
+	[TestClass]
+	public sealed class TestVersionConverter
+	{
+		class TestObject
+		{
+			public Version Version { get; set; }
+		}
+
+		readonly Version testVersion;
+		readonly string testYaml;
+
+		public TestVersionConverter()
+		{
+			testVersion = new Version(1, 2, 3);
+			testYaml = $@"{nameof(TestObject.Version)}: {testVersion.Semver()}";
+		}
+
+		[TestMethod]
+		public void TestYamlSerialization()
+		{
+			var testObj = new TestObject
+			{
+				Version = testVersion
+			};
+
+			var serializedString = new SerializerBuilder()
+				.WithTypeConverter(new VersionConverter())
+				.Build()
+				.Serialize(testObj);
+
+			Assert.AreEqual(testYaml, serializedString.Trim());
+		}
+
+		[TestMethod]
+		public void TestYamlDeserialization()
+		{
+			var deserialized = new DeserializerBuilder()
+				.WithTypeConverter(new VersionConverter())
+				.Build()
+				.Deserialize<TestObject>(testYaml);
+
+			Assert.AreEqual(testVersion, deserialized.Version);
+		}
+	}
+}