Add some more tests

test/WireMock.Net.Tests/Serialization/MappingConverterTests.cs

@@ -0,0 +1,27 @@
+using System;
+using NFluent;
+using WireMock.RequestBuilders;
+using WireMock.ResponseBuilders;
+using WireMock.Serialization;
+using Xunit;
+
+namespace WireMock.Net.Tests.Serialization
+{
+    public class MappingConverterTests
+    {
+        [Fact]
+        public void MappingConverter_ToMappingModel()
+        {
+            // Assign
+            var request = Request.Create();
+            var response = Response.Create();
+            var mapping = new Mapping(Guid.NewGuid(), "", null, request, response, 0, null, null, null);
+
+            // Act
+            var model = MappingConverter.ToMappingModel(mapping);
+
+            // Assert
+            Check.That(model).IsNotNull();
+        }
+    }
+}