aspnetcore/test/Microsoft.AspNet.Mvc.Test/MvcServiceCollectionExtensi...

319 lines
12 KiB
C#

// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using Microsoft.AspNet.Mvc.ActionConstraints;
using Microsoft.AspNet.Mvc.ApiExplorer;
using Microsoft.AspNet.Mvc.ApplicationModels;
using Microsoft.AspNet.Mvc.Core;
using Microsoft.AspNet.Mvc.Filters;
using Microsoft.AspNet.Mvc.MvcServiceCollectionExtensionsTestControllers;
using Microsoft.AspNet.Mvc.Razor;
using Microsoft.Framework.DependencyInjection;
using Microsoft.Framework.OptionsModel;
using Moq;
using Xunit;
namespace Microsoft.AspNet.Mvc
{
public class MvcServiceCollectionExtensionsTest
{
[Fact]
public void WithControllersAsServices_AddsTypesToControllerTypeProviderAndServiceCollection()
{
// Arrange
var collection = new ServiceCollection();
var controllerTypes = new[] { typeof(ControllerTypeA).GetTypeInfo(), typeof(TypeBController).GetTypeInfo() };
// Act
MvcServiceCollectionExtensions.WithControllersAsServices(collection,
controllerTypes);
// Assert
var services = collection.ToList();
Assert.Equal(4, services.Count);
Assert.Equal(typeof(ControllerTypeA), services[0].ServiceType);
Assert.Equal(typeof(ControllerTypeA), services[0].ImplementationType);
Assert.Equal(ServiceLifetime.Transient, services[0].Lifetime);
Assert.Equal(typeof(TypeBController), services[1].ServiceType);
Assert.Equal(typeof(TypeBController), services[1].ImplementationType);
Assert.Equal(ServiceLifetime.Transient, services[1].Lifetime);
Assert.Equal(typeof(IControllerActivator), services[2].ServiceType);
Assert.Equal(typeof(ServiceBasedControllerActivator), services[2].ImplementationType);
Assert.Equal(ServiceLifetime.Transient, services[2].Lifetime);
Assert.Equal(typeof(IControllerTypeProvider), services[3].ServiceType);
var typeProvider = Assert.IsType<FixedSetControllerTypeProvider>(services[3].ImplementationInstance);
Assert.Equal(controllerTypes, typeProvider.ControllerTypes.OrderBy(c => c.Name));
Assert.Equal(ServiceLifetime.Singleton, services[3].Lifetime);
}
[Fact]
public void WithControllersAsServices_ScansControllersFromSpecifiedAssemblies()
{
// Arrange
var collection = new ServiceCollection();
var assemblies = new[] { GetType().Assembly };
var controllerTypes = new[] { typeof(ControllerTypeA), typeof(TypeBController) };
// Act
MvcServiceCollectionExtensions.WithControllersAsServices(collection, assemblies);
// Assert
var services = collection.ToList();
Assert.Equal(4, services.Count);
Assert.Equal(typeof(ControllerTypeA), services[0].ServiceType);
Assert.Equal(typeof(ControllerTypeA), services[0].ImplementationType);
Assert.Equal(ServiceLifetime.Transient, services[0].Lifetime);
Assert.Equal(typeof(TypeBController), services[1].ServiceType);
Assert.Equal(typeof(TypeBController), services[1].ImplementationType);
Assert.Equal(ServiceLifetime.Transient, services[1].Lifetime);
Assert.Equal(typeof(IControllerActivator), services[2].ServiceType);
Assert.Equal(typeof(ServiceBasedControllerActivator), services[2].ImplementationType);
Assert.Equal(ServiceLifetime.Transient, services[2].Lifetime);
Assert.Equal(typeof(IControllerTypeProvider), services[3].ServiceType);
var typeProvider = Assert.IsType<FixedSetControllerTypeProvider>(services[3].ImplementationInstance);
Assert.Equal(controllerTypes, typeProvider.ControllerTypes.OrderBy(c => c.Name));
Assert.Equal(ServiceLifetime.Singleton, services[3].Lifetime);
}
// Some MVC services can be registered multiple times, for example, 'IConfigureOptions<MvcOptions>' can
// be registered by calling 'ConfigureMvc(...)' before the call to 'AddMvc()' in which case the options
// configuration is run in the order they were registered.
//
// For these kind of multi registration service types, we want to make sure that MVC will still add its
// services if the implementation type is different.
[Fact]
public void MultiRegistrationServiceTypes_AreRegistered_MultipleTimes()
{
// Arrange
var services = new ServiceCollection();
// Register a mock implementation of each service, AddMvcServices should add another implemenetation.
foreach (var serviceType in MutliRegistrationServiceTypes)
{
var mockType = typeof(Mock<>).MakeGenericType(serviceType.Key);
services.Add(ServiceDescriptor.Transient(serviceType.Key, mockType));
}
// Act
MvcServiceCollectionExtensions.AddMvcServices(services);
// Assert
foreach (var serviceType in MutliRegistrationServiceTypes)
{
AssertServiceCountEquals(services, serviceType.Key, serviceType.Value.Length + 1);
foreach (var implementationType in serviceType.Value)
{
AssertContainsSingle(services, serviceType.Key, implementationType);
}
}
}
[Fact]
public void SingleRegistrationServiceTypes_AreNotRegistered_MultipleTimes()
{
// Arrange
var services = new ServiceCollection();
// Register a mock implementation of each service, AddMvcServices should not replace it.
foreach (var serviceType in SingleRegistrationServiceTypes)
{
var mockType = typeof(Mock<>).MakeGenericType(serviceType);
services.Add(ServiceDescriptor.Transient(serviceType, mockType));
}
// Act
MvcServiceCollectionExtensions.AddMvcServices(services);
// Assert
foreach (var singleRegistrationType in SingleRegistrationServiceTypes)
{
AssertServiceCountEquals(services, singleRegistrationType, 1);
}
}
[Fact]
public void AddMvcServicesTwice_DoesNotAddDuplicates()
{
// Arrange
var services = new ServiceCollection();
// Act
MvcServiceCollectionExtensions.AddMvcServices(services);
MvcServiceCollectionExtensions.AddMvcServices(services);
// Assert
var singleRegistrationServiceTypes = SingleRegistrationServiceTypes;
foreach (var service in services)
{
if (singleRegistrationServiceTypes.Contains(service.ServiceType))
{
// 'single-registration' services should only have one implementation registered.
AssertServiceCountEquals(services, service.ServiceType, 1);
}
else
{
// 'multi-registration' services should only have one *instance* of each implementation registered.
AssertContainsSingle(services, service.ServiceType, service.ImplementationType);
}
}
}
private IEnumerable<Type> SingleRegistrationServiceTypes
{
get
{
var services = new ServiceCollection();
MvcServiceCollectionExtensions.AddMvcServices(services);
var multiRegistrationServiceTypes = MutliRegistrationServiceTypes;
return services
.Where(sd => !multiRegistrationServiceTypes.Keys.Contains(sd.ServiceType))
.Select(sd => sd.ServiceType);
}
}
private Dictionary<Type, Type[]> MutliRegistrationServiceTypes
{
get
{
return new Dictionary<Type, Type[]>()
{
{
typeof(IConfigureOptions<MvcOptions>),
new Type[]
{
typeof(MvcOptionsSetup),
typeof(JsonMvcOptionsSetup),
}
},
{
typeof(IConfigureOptions<MvcFormatterMappingOptions>),
new Type[]
{
typeof(JsonMvcFormatterMappingOptionsSetup),
}
},
{
typeof(IConfigureOptions<MvcViewOptions>),
new Type[]
{
typeof(MvcViewOptionsSetup),
}
},
{
typeof(IConfigureOptions<RazorViewEngineOptions>),
new Type[]
{
typeof(RazorViewEngineOptionsSetup),
}
},
{
typeof(IApiDescriptionProvider),
new Type[]
{
typeof(DefaultApiDescriptionProvider),
}
},
{
typeof(IControllerPropertyActivator),
new Type[]
{
typeof(ViewDataDictionaryControllerPropertyActivator),
}
},
{
typeof(IApplicationModelProvider),
new Type[]
{
typeof(CorsApplicationModelProvider),
typeof(AuthorizationApplicationModelProvider),
}
},
};
}
}
private void AssertServiceCountEquals(
IServiceCollection services,
Type serviceType,
int expectedServiceRegistrationCount)
{
var serviceDescriptors = services.Where(serviceDescriptor => serviceDescriptor.ServiceType == serviceType);
var actual = serviceDescriptors.Count();
Assert.True(
(expectedServiceRegistrationCount == actual),
$"Expected service type '{serviceType}' to be registered {expectedServiceRegistrationCount}" +
$" time(s) but was actually registered {actual} time(s).");
}
private void AssertContainsSingle(
IServiceCollection services,
Type serviceType,
Type implementationType)
{
var matches = services
.Where(sd =>
sd.ServiceType == serviceType &&
sd.ImplementationType == implementationType)
.ToArray();
if (matches.Length == 0)
{
Assert.True(
false,
$"Could not find an instance of {implementationType} registered as {serviceType}");
}
else if (matches.Length > 1)
{
Assert.True(
false,
$"Found multiple instances of {implementationType} registered as {serviceType}");
}
}
private class CustomActivator : IControllerActivator
{
public object Create(ActionContext context, Type controllerType)
{
throw new NotImplementedException();
}
}
public class CustomTypeProvider : IControllerTypeProvider
{
public IEnumerable<TypeInfo> ControllerTypes { get; set; }
}
}
}
// These controllers are used to test the UseControllersAsServices implementation
// which REQUIRES that they be public top-level classes. To avoid having to stub out the
// implementation of this class to test it, they are just top level classes. Don't reuse
// these outside this test - find a better way or use nested classes to keep the tests
// independent.
namespace Microsoft.AspNet.Mvc.MvcServiceCollectionExtensionsTestControllers
{
public class ControllerTypeA : Controller
{
}
public class TypeBController
{
}
}