public void SingleRegistrationServiceTypes_AreNotRegistered_MultipleTimes()
{
// Arrange
var services = new ServiceCollection();
var multiRegistrationServiceTypes = MutliRegistrationServiceTypes;
// Act
MvcServiceCollectionExtensions.AddMvcServices(services);
MvcServiceCollectionExtensions.AddMvcServices(services);
// Assert
var singleRegistrationServiceTypes = services
.Where(serviceDescriptor => !multiRegistrationServiceTypes.Contains(serviceDescriptor.ServiceType))
.Select(serviceDescriptor => serviceDescriptor.ServiceType);
foreach (var singleRegistrationType in singleRegistrationServiceTypes)
{
AssertServiceCountEquals(services, singleRegistrationType, 1);
}
}