Add tests for options setup

Author: Chris Martinez

test/Microsoft.AspNetCore.Mvc.Versioning.Tests/Versioning/ApiVersioningMvcOptionsSetupTest.cs

@@ -0,0 +1,62 @@
+namespace Microsoft.AspNetCore.Mvc.Versioning
+{
+    using FluentAssertions;
+    using Microsoft.AspNetCore.Mvc.ModelBinding;
+    using Microsoft.AspNetCore.Mvc.ModelBinding.Metadata;
+    using Microsoft.Extensions.Options;
+    using Moq;
+    using System.Linq;
+    using Xunit;
+
+    public class ApiVersioningMvcOptionsSetupTest
+    {
+        [Fact]
+        public void post_configure_should_not_register_report_filter_by_default()
+        {
+            // arrange
+            var versioningOptions = Options.Create( new ApiVersioningOptions() );
+            var mvcOptions = new MvcOptions();
+            var setup = new ApiVersioningMvcOptionsSetup( versioningOptions );
+
+            // act
+            setup.PostConfigure( default, mvcOptions );
+
+            // assert
+            mvcOptions.Filters.Should().BeEmpty();
+        }
+
+        [Fact]
+        public void post_configure_should_register_report_filter()
+        {
+            // arrange
+            var versioningOptions = Options.Create( new ApiVersioningOptions() { ReportApiVersions = true } );
+            var mvcOptions = new MvcOptions();
+            var setup = new ApiVersioningMvcOptionsSetup( versioningOptions );
+
+            // act
+            setup.PostConfigure( default, mvcOptions );
+
+            // assert
+            mvcOptions.Filters.OfType<ServiceFilterAttribute>().Single().ServiceType.Should().Be( typeof( ReportApiVersionsAttribute ) );
+        }
+
+        [Fact]
+        public void post_configure_should_register_model_binder_provider()
+        {
+            // arrange
+            var versioningOptions = Options.Create( new ApiVersioningOptions() );
+            var mvcOptions = new MvcOptions();
+            var setup = new ApiVersioningMvcOptionsSetup( versioningOptions );
+            var metadata = new Mock<ModelMetadata>( ModelMetadataIdentity.ForType( typeof( ApiVersion ) ) );
+            var context = new Mock<ModelBinderProviderContext>();
+
+            context.SetupGet( c => c.Metadata ).Returns( metadata.Object );
+
+            // act
+            setup.PostConfigure( default, mvcOptions );
+
+            // assert
+            mvcOptions.ModelBinderProviders.First().GetBinder( context.Object ).Should().BeOfType( typeof( ApiVersionModelBinder ) );
+        }
+    }
+}

test/Microsoft.AspNetCore.Mvc.Versioning.Tests/Versioning/ApiVersioningRouteOptionsSetupTest.cs

@@ -0,0 +1,42 @@
+namespace Microsoft.AspNetCore.Mvc.Versioning
+{
+    using FluentAssertions;
+    using Microsoft.AspNetCore.Mvc.Routing;
+    using Microsoft.AspNetCore.Routing;
+    using Microsoft.Extensions.Options;
+    using Xunit;
+
+    public class ApiVersioningRouteOptionsSetupTest
+    {
+        [Fact]
+        public void post_configure_should_add_route_contraint_with_default_name()
+        {
+            // arrange
+            var versioningOptions = Options.Create( new ApiVersioningOptions() );
+            var routeOptions = new RouteOptions();
+            var setup = new ApiVersioningRouteOptionsSetup( versioningOptions );
+
+            // act
+            setup.PostConfigure( default, routeOptions );
+
+            // assert
+            routeOptions.ConstraintMap["apiVersion"].Should().Be( typeof( ApiVersionRouteConstraint ) );
+        }
+
+        [Fact]
+        public void post_configure_should_add_route_contraint_with_custom_name()
+        {
+            // arrange
+            const string key = "api-version";
+            var versioningOptions = Options.Create( new ApiVersioningOptions() { RouteConstraintName = key } );
+            var routeOptions = new RouteOptions();
+            var setup = new ApiVersioningRouteOptionsSetup( versioningOptions );
+
+            // act
+            setup.PostConfigure( default, routeOptions );
+
+            // assert
+            routeOptions.ConstraintMap[key].Should().Be( typeof( ApiVersionRouteConstraint ) );
+        }
+    }
+}