public void AddMvcServicesTwice_DoesNotAddDuplicates()
{
// Arrange
var services = new ServiceCollection();
// Act
MvcCoreServiceCollectionExtensions.AddMvcCoreServices(services);
MvcCoreServiceCollectionExtensions.AddMvcCoreServices(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);
}
}
}
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
MvcCoreServiceCollectionExtensions.AddMvcCoreServices(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);
}
}
}
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
MvcCoreServiceCollectionExtensions.AddMvcCoreServices(services);
// Assert
foreach (var singleRegistrationType in SingleRegistrationServiceTypes)
{
AssertServiceCountEquals(services, singleRegistrationType, 1);
}
}