Fixed init order for Flurl config settings

The special handler configured by HttpTest was being overwritten
causing the unit tests to hit the real endpoint instead of returning
mock results.

Author: carolynvs

src/corelib/OpenStackNet.cs

@@ -60,13 +60,14 @@ public static void Configure(Action<FlurlHttpConfigurationOptions> configureFlur
 
                 FlurlHttp.Configure(c =>
                 {
+                    // Apply our default settings
+                    c.HttpClientFactory = new AuthenticatedHttpClientFactory();
+
                     // Apply the application's default settings
                     if (configureFlurl != null)
                         configureFlurl(c);
 
-                    // Apply our default settings
-                    c.HttpClientFactory = new AuthenticatedHttpClientFactory();
-
+                    // Apply our event handling without clobbering any application level handlers
                     var applicationBeforeCall = c.BeforeCall;
                     c.BeforeCall = call =>
                     {

src/testing/unit/AuthenticationTests.cs

@@ -27,7 +27,6 @@ public async void When401AuthenticationFailsMultipleTimes_ThrowException()
         {
             using (var httpTest = new HttpTest())
             {
-                var x = FlurlHttp.Configuration.HttpClientFactory.CreateClient(null, FlurlHttp.Configuration.HttpClientFactory.CreateMessageHandler());
                 httpTest.RespondWith((int)HttpStatusCode.Unauthorized, "Your token has expired");
                 httpTest.RespondWith((int)HttpStatusCode.Unauthorized, "Your token has expired");
 

src/testing/unit/Stubs.cs

@@ -27,7 +27,7 @@ public static Mock<IAuthenticationProvider> CreateAuthenticationProvider()
                 .Returns(Task.FromResult("mock-token"));
 
             stub.Setup(provider => provider.GetEndpoint(It.IsAny<IServiceType>(), It.IsAny<string>(), It.IsAny<bool>(), It.IsAny<CancellationToken>()))
-                .Returns(Task.FromResult("http://api.com"));
+                .Returns(Task.FromResult("http://example.com/api"));
 
             return stub;
         }