/// <summary>
/// Builds and returns an instance of a service, using the decorator pattern.
/// </summary>
/// <returns>The service instance.</returns>
/// <param name="customizationFunc">A customization function, to build the 'shape' of the decorated service.</param>
/// <typeparam name="TService">The service type, typically an interface.</typeparam>
public TService GetDecoratedService <TService>(Func <ICreatesDecorator <TService>, ICustomizesDecorator <TService> > customizationFunc) where TService : class
{
var builder = new AutofacGenericDecoratorBuilder <TService>(resolver);
var builderAdapter = new GenericDecoratorBuilderAdapter <TService>(builder);
var customizer = (IGetsService <TService>)customizationFunc(builderAdapter);
return(customizer.GetService());
}
public void UsingInitialImpl_maps_and_passes_parameters([Frozen] ICreatesAutofacDecorator <IServiceInterface> wrapped,
GenericDecoratorBuilderAdapter <IServiceInterface> sut,
ICustomizesAutofacDecorator <IServiceInterface> customiser)
{
Parameter[] parameters = null;
Mock.Get(wrapped)
.Setup(x => x.UsingInitialImpl <ServiceImpl1>(It.IsAny <Parameter[]>()))
.Callback((Parameter[] @params) => parameters = @params)
.Returns(customiser);
sut.UsingInitialImpl <ServiceImpl1>(TypedParam.From("Foo bar"), TypedParam.From(5));
IEqualityComparer <Parameter> comparer = new TypedParameterComparer();
var expected = new[]
{
TypedParameter.From("Foo bar"),
TypedParameter.From(5),
};
Assert.That(parameters, Is.EqualTo(expected).Using(comparer));
}
public void UsingInitialImplType_executes_appropriate_functionality_from_wrapped_service([Frozen] ICreatesAutofacDecorator <IServiceInterface> wrapped,
GenericDecoratorBuilderAdapter <IServiceInterface> sut,
Type aType,
ICustomizesAutofacDecorator <IServiceInterface> customiser)
{
Mock.Get(wrapped)
.Setup(x => x.UsingInitialImplType(It.IsAny <Type>(), It.IsAny <Parameter[]>()))
.Returns(customiser);
sut.UsingInitialImplType(aType);
Mock.Get(wrapped).Verify(x => x.UsingInitialImplType(aType), Times.Once);
}