Add HandleBars Random functionality (#230 #219)

Add HandleBars Random functionality (#219)

test/WireMock.Net.Tests/ResponseBuilders/ResponseWithHandlebarsRandomTests.cs

@@ -0,0 +1,35 @@
+using System.Threading.Tasks;
+using NFluent;
+using WireMock.Models;
+using WireMock.ResponseBuilders;
+using Xunit;
+
+namespace WireMock.Net.Tests.ResponseBuilders
+{
+    public class ResponseWithHandlebarsRandomTests
+    {
+        private const string ClientIp = "::1";
+
+        [Fact]
+        public async Task Response_ProvideResponseAsync_Handlebars_Random()
+        {
+            // Assign
+            var request = new RequestMessage(new UrlDetails("http://localhost:1234"), "GET", ClientIp);
+
+            var response = Response.Create()
+                .WithBodyAsJson(new
+                {
+                    Text = "{{Random Type=\"Text\" Min=8 Max=20}}",
+                    DateTime = "{{Random Type=\"DateTime\"}}",
+                    Guid = "{{Random Type=\"Guid\" Uppercase=true}}"
+                })
+                .WithTransformer();
+
+            // Act
+            var responseMessage = await response.ProvideResponseAsync(request);
+
+            // assert
+            Check.That(responseMessage.BodyData).IsNotNull();
+        }
+    }
+}