public static ServiceDescriptor AssertServiceDescriptor <TService>(
IServiceCollection services,
IServiceProvider provider,
ServiceLifetime lifetime,
ServiceDescriptorSearchOptions searchOptions = null)
{
if (services == null)
{
throw new ArgumentNullException(nameof(services));
}
if (provider == null)
{
throw new ArgumentNullException(nameof(provider));
}
searchOptions ??= ServiceDescriptorSearchOptions.SearchByServiceType <TService>();
IList <ServiceDescriptor> descriptors = searchOptions.Search(services).ToList();
Assert.Equal(expected: 1, actual: descriptors.Count);
ServiceDescriptor descriptor = descriptors[0];
Assert.Equal(expected: lifetime, actual: descriptor.Lifetime);
Assert.Equal(expected: typeof(TService), actual: descriptor.ServiceType);
return(descriptor);
}
public static TImplementation AssertService <TService, TImplementation>(
IServiceCollection services,
IServiceProvider provider,
ServiceLifetime lifetime,
Action <TImplementation> assert = null,
ServiceDescriptorSearchOptions searchOptions = null)
{
if (services == null)
{
throw new ArgumentNullException(nameof(services));
}
if (provider == null)
{
throw new ArgumentNullException(nameof(provider));
}
ServiceDescriptor descriptor = AssertServiceDescriptor <TService>(
services,
provider,
lifetime,
searchOptions);
object service = GetService(provider, descriptor);
Assert.NotNull(service);
Assert.IsType <TImplementation>(service);
Assert.IsAssignableFrom(descriptor.ServiceType, service);
var result = (TImplementation)service;
assert?.Invoke(result);
return(result);
}
public static TException AssertServiceThrows <TService, TImplementation, TException>(
IServiceCollection services,
IServiceProvider provider,
ServiceLifetime lifetime,
Action <TException> assert = null,
ServiceDescriptorSearchOptions searchOptions = null)
where TException : Exception
{
if (services == null)
{
throw new ArgumentNullException(nameof(services));
}
if (provider == null)
{
throw new ArgumentNullException(nameof(provider));
}
ServiceDescriptor descriptor = AssertServiceDescriptor <TService>(
services,
provider,
lifetime,
searchOptions);
Assert.True(descriptor.ServiceType.IsAssignableFrom(typeof(TImplementation)));
TException exception = Assert.Throws <TException>(() => GetService(provider, descriptor));
assert?.Invoke(exception);
return(exception);
}
public static TService AssertService <TService>(
IServiceCollection services,
IServiceProvider provider,
ServiceLifetime lifetime,
Action <TService> assert = null,
ServiceDescriptorSearchOptions searchOptions = null)
{
return(AssertService <TService, TService>(
services,
provider,
lifetime,
assert,
searchOptions));
}
public static TException AssertServiceThrows <TService, TException>(
IServiceCollection services,
IServiceProvider provider,
ServiceLifetime lifetime,
Action <TException> assert = null,
ServiceDescriptorSearchOptions searchOptions = null)
where TException : Exception
{
return(AssertServiceThrows <TService, TService, TException>(
services,
provider,
lifetime,
assert,
searchOptions));
}