moving load balancer creation into its own class

test/Ocelot.UnitTests/LoadBalancer/LoadBalancerCreatorTests.cs

@@ -0,0 +1,57 @@
+using Xunit;
+using Shouldly;
+using TestStack.BDDfy;
+using Ocelot.LoadBalancer;
+using Ocelot.LoadBalancer.LoadBalancers;
+using Moq;
+using Ocelot.Configuration;
+using System.Collections.Generic;
+using Ocelot.Values;
+using Ocelot.Configuration.Builder;
+
+namespace Ocelot.UnitTests.LoadBalancer
+{
+    public class LoadBalancerCreatorTests
+    {
+        private LoadBalancerCreator _creator;
+        private ILoadBalancerHouse _house;
+        private Mock<ILoadBalancerFactory> _factory;
+        private ReRoute _reRoute;
+
+        public LoadBalancerCreatorTests()
+        {
+            _house = new LoadBalancerHouse();
+            _factory = new Mock<ILoadBalancerFactory>();
+            _creator = new LoadBalancerCreator(_house, _factory.Object);
+        }
+
+        [Fact]
+        public void should_create_load_balancer()
+        {
+            var reRoute = new ReRouteBuilder().WithLoadBalancerKey("Test").Build();
+            this.Given(x => GivenTheFollowingReRoute(reRoute))
+                .When(x => WhenICallTheCreator())
+                .Then(x => x.ThenTheLoadBalancerIsCreated())
+                .BDDfy();
+        }
+
+        private void GivenTheFollowingReRoute(ReRoute reRoute)
+        {
+            _reRoute = reRoute;
+            _factory
+                .Setup(x => x.Get(It.IsAny<ReRoute>()))
+                .ReturnsAsync(new NoLoadBalancer(new List<Service>()));
+        }
+
+        private void WhenICallTheCreator()
+        {
+            _creator.SetupLoadBalancer(_reRoute).Wait();
+        }
+
+        private void ThenTheLoadBalancerIsCreated()
+        {
+            var lb = _house.Get(_reRoute.ReRouteKey);
+            lb.ShouldNotBeNull();
+        }
+    }
+}