public CreationResult CreateFake(
Type typeOfFake,
IProxyOptions proxyOptions,
IDummyValueResolver resolver,
LoopDetectingResolutionContext resolutionContext)
{
if (!CastleDynamicProxyGenerator.CanGenerateProxy(typeOfFake, out string?reasonCannotGenerate))
{
return(CreationResult.FailedToCreateFake(typeOfFake, reasonCannotGenerate));
}
if (proxyOptions.ArgumentsForConstructor is not null)
{
var proxyGeneratorResult = this.GenerateProxy(typeOfFake, proxyOptions, proxyOptions.ArgumentsForConstructor);
return(proxyGeneratorResult.ProxyWasSuccessfullyGenerated
? CreationResult.SuccessfullyCreated(proxyGeneratorResult.GeneratedProxy)
: CreationResult.FailedToCreateFake(typeOfFake, proxyGeneratorResult.ReasonForFailure !));
}
return(this.TryCreateFakeWithDummyArgumentsForConstructor(
typeOfFake,
proxyOptions,
resolver,
resolutionContext));
}
public override CreationResult TryCreateDummyValue(Type typeOfDummy, IDummyValueResolver resolver)
{
var success = this.DummyFactory.TryCreateDummyObject(typeOfDummy, out object result);
return(success
? CreationResult.SuccessfullyCreated(result)
: CreationResult.FailedToCreateDummy(typeOfDummy, "No Dummy Factory produced a result."));
}
public override CreationResult TryCreateDummyValue(DummyCreationSession session, Type typeOfDummy)
{
if (typeof(Delegate).IsAssignableFrom(typeOfDummy))
{
return(CreationResult.FailedToCreateDummy(typeOfDummy, "It is a Delegate."));
}
if (typeOfDummy.GetTypeInfo().IsAbstract)
{
return(CreationResult.FailedToCreateDummy(typeOfDummy, "It is abstract."));
}
// Save the constructors as we try them. Avoids eager evaluation and double evaluation
// of constructors enumerable.
var consideredConstructors = new List <ResolvedConstructor>();
if (this.cachedConstructors.TryGetValue(typeOfDummy, out ConstructorInfo cachedConstructor))
{
var resolvedConstructor = new ResolvedConstructor(
cachedConstructor.GetParameters().Select(pi => pi.ParameterType),
session,
this.Resolver);
if (resolvedConstructor.WasSuccessfullyResolved)
{
if (TryCreateDummyValueUsingConstructor(cachedConstructor, resolvedConstructor, out object result))
{
return(CreationResult.SuccessfullyCreated(result));
}
consideredConstructors.Add(resolvedConstructor);
}
}
else
{
foreach (var constructor in GetConstructorsInOrder(typeOfDummy))
{
var resolvedConstructor = new ResolvedConstructor(
constructor.GetParameters().Select(pi => pi.ParameterType),
session,
this.Resolver);
if (resolvedConstructor.WasSuccessfullyResolved && TryCreateDummyValueUsingConstructor(constructor, resolvedConstructor, out object result))
{
this.cachedConstructors[typeOfDummy] = constructor;
return(CreationResult.SuccessfullyCreated(result));
}
consideredConstructors.Add(resolvedConstructor);
}
}
if (consideredConstructors.Any())
{
return(CreationResult.FailedToCreateDummy(typeOfDummy, consideredConstructors));
}
return(CreationResult.FailedToCreateDummy(typeOfDummy, "It has no public constructors."));
}
public override CreationResult TryCreateDummyValue(Type typeOfDummy, IDummyValueResolver resolver)
{
if (typeOfDummy.GetTypeInfo().IsValueType&& typeOfDummy != typeof(void))
{
return(CreationResult.SuccessfullyCreated(Activator.CreateInstance(typeOfDummy)));
}
return(CreationResult.FailedToCreateDummy(typeOfDummy, "It is not a value type."));
}
public override CreationResult TryCreateDummyValue(
Type typeOfDummy,
IDummyValueResolver resolver,
LoopDetectingResolutionContext resolutionContext)
{
if (typeOfDummy.GetTypeInfo().IsGenericType&& typeOfDummy.GetGenericTypeDefinition() == typeof(Lazy <>))
{
var typeOfLazyResult = typeOfDummy.GetGenericArguments()[0];
var method = CreateLazyDummyGenericDefinition.MakeGenericMethod(typeOfLazyResult);
var dummy = method.Invoke(null, new object[] { resolver });
return(CreationResult.SuccessfullyCreated(dummy));
}
return(CreationResult.FailedToCreateDummy(typeOfDummy, "It is not a Lazy."));
}
public CreationResult CreateFakeInterface(Type typeOfFake, IProxyOptions proxyOptions)
{
if (proxyOptions.ArgumentsForConstructor is not null)
{
throw new ArgumentException(DynamicProxyMessages.ArgumentsForConstructorOnInterfaceType);
}
var fakeCallProcessorProvider = this.fakeCallProcessorProviderFactory(typeOfFake, proxyOptions);
var proxyGeneratorResult = CastleDynamicProxyGenerator.GenerateInterfaceProxy(
typeOfFake,
proxyOptions.AdditionalInterfacesToImplement,
proxyOptions.Attributes,
fakeCallProcessorProvider);
return(proxyGeneratorResult.ProxyWasSuccessfullyGenerated
? CreationResult.SuccessfullyCreated(proxyGeneratorResult.GeneratedProxy)
: CreationResult.FailedToCreateFake(typeOfFake, proxyGeneratorResult.ReasonForFailure !));
}
public override CreationResult TryCreateDummyValue(
Type typeOfDummy,
IDummyValueResolver resolver,
LoopDetectingResolutionContext resolutionContext)
{
if (typeOfDummy == typeof(Task))
{
return(CreationResult.SuccessfullyCreated(TaskHelper.CompletedTask));
}
if (typeOfDummy.IsGenericType && typeOfDummy.GetGenericTypeDefinition() == typeof(Task <>))
{
var typeOfTaskResult = typeOfDummy.GetGenericArguments()[0];
var creationResult = resolver.TryResolveDummyValue(typeOfTaskResult, resolutionContext);
object?taskResult = creationResult.WasSuccessful
? creationResult.Result
: typeOfTaskResult.GetDefaultValue();
var method = GenericFromResultMethodDefinition.MakeGenericMethod(typeOfTaskResult);
return(CreationResult.SuccessfullyCreated(method.Invoke(null, new[] { taskResult })));
}
if (typeOfDummy.FullName == "System.Threading.Tasks.ValueTask")
{
return(CreationResult.SuccessfullyCreated(typeOfDummy.GetDefaultValue()));
}
if (typeOfDummy.IsGenericType &&
!typeOfDummy.IsGenericTypeDefinition &&
typeOfDummy.FullName is string fullName &&
fullName.StartsWith("System.Threading.Tasks.ValueTask`", StringComparison.Ordinal))
{
var typeOfTaskResult = typeOfDummy.GetGenericArguments()[0];
var creationResult = resolver.TryResolveDummyValue(typeOfTaskResult, resolutionContext);
object?taskResult = creationResult.WasSuccessful
? creationResult.Result
: typeOfTaskResult.GetDefaultValue();
var ctor = typeOfDummy.GetConstructor(new[] { typeOfTaskResult }) !;
return(CreationResult.SuccessfullyCreated(ctor.Invoke(new[] { taskResult })));
}
return(CreationResult.FailedToCreateDummy(typeOfDummy, "It is not a Task."));
}
public override CreationResult TryCreateDummyValue(Type typeOfDummy, IDummyValueResolver resolver)
{
if (typeOfDummy.GetTypeInfo().IsGenericType&& typeOfDummy.GetGenericTypeDefinition() == typeof(Lazy <>))
{
var typeOfLazyResult = typeOfDummy.GetGenericArguments()[0];
var creationResult = resolver.TryResolveDummyValue(typeOfLazyResult);
object lazyResult = creationResult.WasSuccessful
? creationResult.Result
: typeOfLazyResult.GetDefaultValue();
var funcType = typeof(Func <>).MakeGenericType(typeOfLazyResult);
var method = CreateGenericFromResultMethodDefinition().MakeGenericMethod(typeOfLazyResult);
var func = method.Invoke(null, new[] { lazyResult });
var dummy = typeOfDummy.GetConstructor(new[] { funcType, typeof(bool) }).Invoke(new[] { func, true });
return(CreationResult.SuccessfullyCreated(dummy));
}
return(CreationResult.FailedToCreateDummy(typeOfDummy, "It is not a Lazy."));
}
public override CreationResult TryCreateDummyValue(Type typeOfDummy, IDummyValueResolver resolver, LoopDetectingResolutionContext resolutionContext)
{
if (IsTuple(typeOfDummy))
{
var argTypes = typeOfDummy.GetTypeInfo().GetGenericArguments();
var args = new object[argTypes.Length];
for (int i = 0; i < argTypes.Length; i++)
{
var argType = argTypes[i];
var creationResult = resolver.TryResolveDummyValue(argType, resolutionContext);
args[i] = creationResult.WasSuccessful
? creationResult.Result
: argType.GetDefaultValue();
}
var dummy = Activator.CreateInstance(typeOfDummy, args);
return(CreationResult.SuccessfullyCreated(dummy));
}
return(CreationResult.FailedToCreateDummy(typeOfDummy, "It is not a tuple."));
}
public override CreationResult TryCreateDummyValue(Type typeOfDummy, IDummyValueResolver resolver)
{
if (typeOfDummy == typeof(Task))
{
return(CreationResult.SuccessfullyCreated(TaskHelper.FromResult(default(object))));
}
if (typeOfDummy.GetTypeInfo().IsGenericType&& typeOfDummy.GetGenericTypeDefinition() == typeof(Task <>))
{
var typeOfTaskResult = typeOfDummy.GetGenericArguments()[0];
var creationResult = resolver.TryResolveDummyValue(typeOfTaskResult);
object taskResult = creationResult.WasSuccessful
? creationResult.Result
: typeOfTaskResult.GetDefaultValue();
var method = GenericFromResultMethodDefinition.MakeGenericMethod(typeOfTaskResult);
return(CreationResult.SuccessfullyCreated(method.Invoke(null, new[] { taskResult })));
}
return(CreationResult.FailedToCreateDummy(typeOfDummy, "It is not a Task."));
}
public CreationResult CreateFake(Type typeOfFake, IProxyOptions proxyOptions, DummyCreationSession session, IDummyValueResolver resolver)
{
if (proxyOptions.Attributes.Any())
{
return(CreationResult.FailedToCreateFake(typeOfFake, "Faked delegates cannot have custom attributes applied to them."));
}
if (proxyOptions.ArgumentsForConstructor != null && proxyOptions.ArgumentsForConstructor.Any())
{
return(CreationResult.FailedToCreateFake(typeOfFake, "Faked delegates cannot be made using explicit constructor arguments."));
}
if (proxyOptions.AdditionalInterfacesToImplement.Any())
{
return(CreationResult.FailedToCreateFake(typeOfFake, "Faked delegates cannot be made to implement additional interfaces."));
}
var fakeCallProcessorProvider = this.fakeCallProcessorProviderFactory(typeOfFake, proxyOptions);
var proxyGeneratorResult = DelegateProxyGenerator.GenerateProxy(typeOfFake, fakeCallProcessorProvider);
return(proxyGeneratorResult.ProxyWasSuccessfullyGenerated
? CreationResult.SuccessfullyCreated(proxyGeneratorResult.GeneratedProxy)
: CreationResult.FailedToCreateFake(typeOfFake, proxyGeneratorResult.ReasonForFailure));
}
