public void Test_ArgumentNull()
        {
            // things would have been a great deal easier if the non-nullable reference type was implemented already...

            AggregateTester.New()

            // STON elements construction
            .Add("new StonSimpleEntity.Copy(value)", () => ExpectArgumentNull(() => new StonSimpleEntity(null as IStonSimpleValue), "value"))
            .Add("new StonReferenceEntity(address,globalIdentifier)", () => ExpectArgumentNull(() => new StonReferenceEntity(null as IStonAddress), "address"))

            .Add("new StonNamedType.Copy(name,typeParameters,isExtension)", () => ExpectArgumentNull(() => new StonNamedType(null as string), "name"))
            .Add("new StonCollectionType.Copy(elementType)", () => ExpectArgumentNull(() => new StonCollectionType(null as IStonType), "elementType"))
            .Add("new StonUnionType(permittedTypes)", () => ExpectArgumentNull(() => new StonUnionType(null as IEnumerable <IStonType>), "permittedTypes"))

            .Add("new StonSimpleValue(value)", () => ExpectArgumentNull(() => StonSimpleValue.Copy(null), "value"))

            .Add("new StonBindingName(name,isExtension)", () => ExpectArgumentNull(() => new StonBindingName(null as string), "name"))
            .Add("new StonBindingIndex(bindingIndex)", () => ExpectArgumentNull(() => new StonBindingIndex(null as IEnumerable <IStonEntity>), "parameters"))

            .Add("new StonAddress(initialContext,relativePath)", () => ExpectArgumentNull(() => new StonAddress(null, null), "initialContext"))
            .Add("new StonGlobalEntityInitialContext(globalIdentifier)", () => ExpectArgumentNull(() => new StonGlobalEntityInitialContext(null as string), "globalIdentifier"))
            .Add("new StonMemberPathSegment(bindingKey)", () => ExpectArgumentNull(() => new StonMemberPathSegment(null as IStonBindingKey), "bindingKey"))
            .Add("new StonCollectionElementPathSegment(bindingKey)", () => ExpectArgumentNull(() => new StonCollectionElementPathSegment(null as IStonEntity), "elementIndex"))

            // STON elements copying
            .Add("StonEntity.Copy(entity)", () => ExpectArgumentNull(() => StonEntity.Copy(null), "entity"))
            .Add("StonValuedEntity.Copy(entity)", () => ExpectArgumentNull(() => StonValuedEntity.Copy(null), "entity"))
            .Add("StonSimpleEntity.Copy(entity)", () => ExpectArgumentNull(() => StonSimpleEntity.Copy(null), "entity"))
            .Add("StonComplexEntity.Copy(entity)", () => ExpectArgumentNull(() => StonComplexEntity.Copy(null), "entity"))
            .Add("StonReferenceEntity.Copy(entity)", () => ExpectArgumentNull(() => StonReferenceEntity.Copy(null), "entity"))

            .Add("StonType.Copy(type)", () => ExpectArgumentNull(() => StonType.Copy(null), "type"))
            .Add("StonNamedType.Copy(type)", () => ExpectArgumentNull(() => StonNamedType.Copy(null), "type"))
            .Add("StonCollectionType.Copy(type)", () => ExpectArgumentNull(() => StonCollectionType.Copy(null), "type"))
            .Add("StonUnionType.Copy(type)", () => ExpectArgumentNull(() => StonUnionType.Copy(null), "type"))

            .Add("StonSimpleValue.Copy(value)", () => ExpectArgumentNull(() => StonSimpleValue.Copy(null), "value"))

            .Add("StonConstruction.Copy(construction)", () => ExpectArgumentNull(() => StonConstruction.Copy(null), "construction"))
            .Add("StonMemberInit.Copy(memberInit)", () => ExpectArgumentNull(() => StonMemberInit.Copy(null), "memberInit"))
            .Add("StonBindingKey.Copy(bindingKey)", () => ExpectArgumentNull(() => StonBindingKey.Copy(null), "bindingKey"))
            .Add("StonBindingName.Copy(bindingName)", () => ExpectArgumentNull(() => StonBindingName.Copy(null), "bindingName"))
            .Add("StonBindingIndex.Copy(bindingIndex)", () => ExpectArgumentNull(() => StonBindingIndex.Copy(null), "bindingIndex"))
            .Add("StonCollectionInit.Copy(collectionInit)", () => ExpectArgumentNull(() => StonCollectionInit.Copy(null), "collectionInit"))

            .Add("StonAddress.Copy(address)", () => ExpectArgumentNull(() => StonAddress.Copy(null), "address"))
            .Add("StonInitialContext.Copy(context)", () => ExpectArgumentNull(() => StonInitialContext.Copy(null), "context"))
            .Add("StonAncestorInitialContext.Copy(context)", () => ExpectArgumentNull(() => StonAncestorInitialContext.Copy(null), "context"))
            .Add("StonGlobalEntityInitialContext.Copy(context)", () => ExpectArgumentNull(() => StonGlobalEntityInitialContext.Copy(null), "context"))
            .Add("StonPathSegment.Copy(segment)", () => ExpectArgumentNull(() => StonPathSegment.Copy(null), "segment"))
            .Add("StonAncestorPathSegment.Copy(segment)", () => ExpectArgumentNull(() => StonAncestorPathSegment.Copy(null), "segment"))
            .Add("StonMemberPathSegment.Copy(segment)", () => ExpectArgumentNull(() => StonMemberPathSegment.Copy(null), "segment"))
            .Add("StonCollectionElementPathSegment.Copy(segment)", () => ExpectArgumentNull(() => StonCollectionElementPathSegment.Copy(null), "segment"))

            // document methods
            .Add("StonDocument.GetParentContext(context)", () => ExpectArgumentNull <IStonDocument>((document) => document.GetParentContext(null), "context"))
            .Add("StonDocument.GetMember(entity?,memberKey)", () => ExpectArgumentNull <IStonDocument>((document) => document.GetMember(null, null), "entity"))
            .Add("StonDocument.GetMember(entity,memberKey?)", () => ExpectArgumentNull <IStonDocument>((document) => document.GetMember(document.Core as IStonComplexEntity, null), "memberKey"))
            .Add("StonDocument.GetReferencedValue(reference)", () => ExpectArgumentNull <IStonDocument>((document) => document.GetReferencedValue(null), "reference"))

            // reading/writing
            .Add("new StonReader(elementFactory?,documentFactory)", () => ExpectArgumentNull(() => new RegularStonReader(null, null), "elementFactory"))
            .Add("new StonReader(elementFactory,documentFactory?)", () => ExpectArgumentNull(() => new RegularStonReader(Building.CoreStonElementFactory.Instance, null), "documentFactory"))
            .Add("StonReader.ReadEntity(reader)", () => ExpectArgumentNull(() => RegularStonReader.Default.ReadEntity(null), "reader"))
            .Add("StonReader.ReadDocument(reader,...)", () => ExpectArgumentNull(() => RegularStonReader.Default.ReadDocument(null), "reader"))

            .Add("new StonTokenReader(innerReader)", () => ExpectArgumentNull(() => new StonTokenReader(null), "innerReader"))

            .Add("*IStonReader.ParseEntity(value)", () => ExpectArgumentNull(() => (RegularStonReader.Default as IStonReader).ParseEntity(null), "value"))
            .Add("*IStonReader.ParseEntity<>(value)", () => ExpectArgumentNull(() => RegularStonReader.Default.ParseEntity(null), "value"))
            .Add("*IStonReader.LoadEntity(stream)", () => ExpectArgumentNull(() => (RegularStonReader.Default as IStonReader).LoadEntity(null as Stream), "stream"))
            .Add("*IStonReader.LoadEntity<>(stream)", () => ExpectArgumentNull(() => RegularStonReader.Default.LoadEntity(null as Stream), "stream"))
            .Add("*IStonReader.ParseDocument(value)", () => ExpectArgumentNull(() => (RegularStonReader.Default as IStonReader).ParseDocument(null), "value"))
            .Add("*IStonReader.ParseDocument<>(value)", () => ExpectArgumentNull(() => RegularStonReader.Default.ParseDocument(null), "value"))
            .Add("*IStonReader.LoadDocument(stream)", () => ExpectArgumentNull(() => (RegularStonReader.Default as IStonReader).LoadDocument(null as Stream), "stream"))
            .Add("*IStonReader.LoadDocument<>(stream)", () => ExpectArgumentNull(() => RegularStonReader.Default.LoadDocument(null as Stream), "stream"))

            .Add("new StonTokenWriter(innerWriter)", () => ExpectArgumentNull(() => new StonTokenWriter(null), "innerWriter"))
            .Add("StonTokenWriter.WriteStringLiteral(content,delimiter)", () => ExpectArgumentNull((StonTokenWriter writer) => writer.WriteStringLiteral(null), "content"))
            .Add("StonTokenWriter.WriteBinaryLiteral(content,baseId)", () => ExpectArgumentNull((StonTokenWriter writer) => writer.WriteBinaryLiteral(null), "content"))
            .Add("StonTokenWriter.WriteCanonicalNumberLiteral(content)", () => ExpectArgumentNull((StonTokenWriter writer) => writer.WriteCanonicalNumberLiteral(null), "content"))
            .Add("StonTokenWriter.WritePlainNumberLiteral(content)", () => ExpectArgumentNull((StonTokenWriter writer) => writer.WritePlainNumberLiteral(null), "content"))
            .Add("StonTokenWriter.WriteScientificNumberLiteral(content)", () => ExpectArgumentNull((StonTokenWriter writer) => writer.WriteScientificNumberLiteral(null), "content"))

            .Add("CanonicalStonWriter.WriteEntity(writer?,entity)", () => ExpectArgumentNull(() => CanonicalStonWriter.Instance.WriteEntity(null, null), "writer"))
            .Add("CanonicalStonWriter.WriteEntity(writer,entity?)", () => ExpectArgumentNull(() => CanonicalStonWriter.Instance.WriteEntity(new System.IO.StringWriter(), null), "entity"))
            .Add("CanonicalStonWriter.WriteDocument(writer?,document)", () => ExpectArgumentNull(() => CanonicalStonWriter.Instance.WriteDocument(null, null), "writer"))
            .Add("CanonicalStonWriter.WriteDocument(writer,document?)", () => ExpectArgumentNull(() => CanonicalStonWriter.Instance.WriteDocument(new System.IO.StringWriter(), null), "document"))

            .Add("*IStonEntity.ToString(writer)", () => ExpectArgumentNull <IStonEntity>((entity) => entity.ToString(null), "writer"))
            .Add("*IStonEntity.ToString<>(writer)", () => ExpectArgumentNull <IStonEntity>((entity) => entity.ToString(null as IStonWriter <IStonEntity, IStonDocument>), "writer"))
            .Add("*IStonEntity.Save(stream?,writer)", () => ExpectArgumentNull <IStonEntity>((entity) => entity.Save(null as Stream, CanonicalStonWriter.Instance), "stream"))
            .Add("*IStonEntity.Save(stream,writer?)", () => ExpectArgumentNull <IStonEntity>((entity) => entity.Save(new MemoryStream(), null), "writer"))
            .Add("*IStonEntity.Save<>(stream?,writer)", () => ExpectArgumentNull <IStonEntity>((entity) => entity.Save(null as Stream, null as IStonWriter <IStonEntity, IStonDocument>), "stream"))
            .Add("*IStonEntity.Save<>(stream,writer?)", () => ExpectArgumentNull <IStonEntity>((entity) => entity.Save(new MemoryStream(), null as IStonWriter <IStonEntity, IStonDocument>), "writer"))
            .Add("*IStonDocument.ToString(writer)", () => ExpectArgumentNull <IStonDocument>((document) => document.ToString(null), "writer"))
            .Add("*IStonDocument.ToString<>(writer)", () => ExpectArgumentNull <IStonDocument>((document) => document.ToString(null as IStonWriter <IStonEntity, IStonDocument>), "writer"))
            .Add("*IStonDocument.Save(stream?,writer)", () => ExpectArgumentNull <IStonDocument>((document) => document.Save(null as Stream, null), "stream"))
            .Add("*IStonDocument.Save(stream,writer?)", () => ExpectArgumentNull <IStonDocument>((document) => document.Save(new MemoryStream(), null), "writer"))
            .Add("*IStonDocument.Save<>(stream?,writer)", () => ExpectArgumentNull <IStonDocument>((document) => document.Save(null as Stream, null as IStonWriter <IStonEntity, IStonDocument>), "stream"))
            .Add("*IStonDocument.Save<>(stream,writer?)", () => ExpectArgumentNull <IStonDocument>((document) => document.Save(new MemoryStream(), null as IStonWriter <IStonEntity, IStonDocument>), "writer"))

            // equivalence comparing
            .Add("new StonSemanticEntityEquivalenceComparer(document)", () => ExpectArgumentNull(() => new StonSemanticEntityEquivalenceComparer(null), "document"))
            .Add("new StonBindingKeyEquivalenceComparer(indexParameterComparer)", () => ExpectArgumentNull(() => new StonBindingKeyEquivalenceComparer(null), "indexParameterComparer"))

            // validation

            .Add("ValidateEntity(entity) 1", () => ExpectArgumentNull(() => ValidateEntity(null as IStonEntity), "entity"))
            .Add("ValidateEntity(entity) 2", () => ExpectArgumentNull(() => ValidateEntity(null as IStonValuedEntity), "entity"))
            .Add("ValidateEntity(entity) 3", () => ExpectArgumentNull(() => ValidateEntity(null as IStonSimpleEntity), "entity"))
            .Add("ValidateEntity(entity) 4", () => ExpectArgumentNull(() => ValidateEntity(null as IStonComplexEntity), "entity"))
            .Add("ValidateEntity(entity) 5", () => ExpectArgumentNull(() => ValidateEntity(null as IStonReferenceEntity), "entity"))

            .Add("ValidateGlobalIdentifier(globalIdentifier)", () => ExpectArgumentNull(() => ValidateGlobalIdentifier(null), "globalIdentifier"))

            .Add("ValidateType(type) 1", () => ExpectArgumentNull(() => ValidateType(null as IStonType), "type"))
            .Add("ValidateType(type) 2", () => ExpectArgumentNull(() => ValidateType(null as IStonNamedType), "type"))
            .Add("ValidateType(type) 3", () => ExpectArgumentNull(() => ValidateType(null as IStonCollectionType), "type"))
            .Add("ValidateType(type) 4", () => ExpectArgumentNull(() => ValidateType(null as IStonUnionType), "type"))

            .Add("ValidateSimpleValue(value)", () => ExpectArgumentNull(() => ValidateSimpleValue(null), "value"))

            .Add("ValidateConstruction(construction)", () => ExpectArgumentNull(() => ValidateConstruction(null), "construction"))
            .Add("ValidateMemberInit(memberInit)", () => ExpectArgumentNull(() => ValidateMemberInit(null), "memberInit"))
            .Add("ValidateBindingKey(bindingKey) 1", () => ExpectArgumentNull(() => ValidateBindingKey(null as IStonBindingKey), "bindingKey"))
            .Add("ValidateBindingKey(bindingKey) 2", () => ExpectArgumentNull(() => ValidateBindingKey(null as IStonBindingName), "bindingKey"))
            .Add("ValidateBindingKey(bindingKey) 3", () => ExpectArgumentNull(() => ValidateBindingKey(null as IStonBindingIndex), "bindingKey"))
            .Add("ValidateCollectionInit(collectionInit)", () => ExpectArgumentNull(() => ValidateCollectionInit(null), "collectionInit"))

            .Add("ValidateAddress(address)", () => ExpectArgumentNull(() => ValidateAddress(null), "address"))
            .Add("ValidateInitialContext(initialContext) 1", () => ExpectArgumentNull(() => ValidateInitialContext(null as IStonInitialContext), "initialContext"))
            .Add("ValidateInitialContext(initialContext) 2", () => ExpectArgumentNull(() => ValidateInitialContext(null as IStonAncestorInitialContext), "initialContext"))
            .Add("ValidateInitialContext(initialContext) 3", () => ExpectArgumentNull(() => ValidateInitialContext(null as IStonGlobalEntityInitialContext), "initialContext"))
            .Add("ValidatePathSegment(segment) 1", () => ExpectArgumentNull(() => ValidatePathSegment(null as IStonPathSegment), "segment"))
            .Add("ValidatePathSegment(segment) 2", () => ExpectArgumentNull(() => ValidatePathSegment(null as IStonAncestorPathSegment), "segment"))
            .Add("ValidatePathSegment(segment) 3", () => ExpectArgumentNull(() => ValidatePathSegment(null as IStonMemberPathSegment), "segment"))
            .Add("ValidatePathSegment(segment) 4", () => ExpectArgumentNull(() => ValidatePathSegment(null as IStonCollectionElementPathSegment), "segment"))

            // ironically, exceptions

            .Add("new StonImplementationException(elementType?,baseInterface,derivedInterfaces)", () => ExpectArgumentNull(() => new StonImplementationException(null, null, null as Type[]), "elementType"))
            .Add("new StonImplementationException(elementType,baseInterface?,derivedInterfaces)", () => ExpectArgumentNull(() => new StonImplementationException(typeof(object), null, null as Type[]), "baseInterface"))
            .Add("new StonImplementationException(elementType,baseInterface,derivedInterfaces?)", () => ExpectArgumentNull(() => new StonImplementationException(typeof(object), typeof(object), null as Type[]), "derivedInterfaces"))

            .Add("new StonDuplicateGlobalEntityException(firstEntity?,secondEntity)", () => ExpectArgumentNull(() => new StonDuplicateGlobalEntityException(null, null), "firstEntity"))
            .Add("new StonDuplicateGlobalEntityException(firstEntity,secondEntity?)", () => ExpectArgumentNull(() => new StonDuplicateGlobalEntityException(MakeActor <IStonEntity>(), null), "secondEntity"))
            .Add("new StonDuplicateGlobalEntityException(firstEntity?,secondEntity,message)", () => ExpectArgumentNull(() => new StonDuplicateGlobalEntityException(null, null, ""), "firstEntity"))
            .Add("new StonDuplicateGlobalEntityException(firstEntity,secondEntity?,message)", () => ExpectArgumentNull(() => new StonDuplicateGlobalEntityException(MakeActor <IStonEntity>(), null, ""), "secondEntity"))

            .Add("new StonCircularConstructionException(document?,constructionCycle)", () => ExpectArgumentNull(() => new StonCircularConstructionException(null, null), "document"))
            .Add("new StonCircularConstructionException(document,constructionCycle?)", () => ExpectArgumentNull <IStonDocument>((document) => new StonCircularConstructionException(document, null), "constructionCycle"))

            .Add("new StonExtensionTypeException(extensionType)", () => ExpectArgumentNull(() => new StonExtensionTypeException(null as IStonNamedType), "extensionType"))
            .Add("new StonExtensionTypeException(entity)", () => ExpectArgumentNull(() => new StonExtensionTypeException(null as IStonValuedEntity), "entity"))

            .Add("new StonExtensionTypeException(memberKey)", () => ExpectArgumentNull(() => new StonExtensionMemberException(null), "memberKey"))

            .Run();
        }
        public void Test_InvalidImplementations()
        {
            AggregateTester.New()

            // STON elements copying
            .Add("StonEntity.Copy(IStonEntity)", () => ExpectImplementationException(() => StonEntity.Copy(new InvalidStonEntity()), typeof(InvalidStonEntity), typeof(IStonEntity), typeof(IStonValuedEntity), typeof(IStonReferenceEntity)))
            .Add("StonValuedEntity.Copy(IStonValuedEntity)", () => ExpectImplementationException(() => StonValuedEntity.Copy(new InvalidStonValuedEntity()), typeof(InvalidStonValuedEntity), typeof(IStonValuedEntity), typeof(IStonSimpleEntity), typeof(IStonComplexEntity)))
            .Add("StonType.Copy(IStonType)", () => ExpectImplementationException(() => StonType.Copy(new InvalidStonType()), typeof(InvalidStonType), typeof(IStonType), typeof(IStonNamedType), typeof(IStonCollectionType), typeof(IStonUnionType)))
            .Add("StonBindingKey.Copy(IStonBindingKey)", () => ExpectImplementationException(() => StonBindingKey.Copy(new InvalidStonBindingKey()), typeof(InvalidStonBindingKey), typeof(IStonBindingKey), typeof(IStonBindingName), typeof(IStonBindingIndex)))
            .Add("StonInitialContext.Copy(IStonInitialContext)", () => ExpectImplementationException(() => StonInitialContext.Copy(new InvalidStonInitialContext()), typeof(InvalidStonInitialContext), typeof(IStonInitialContext), typeof(IStonAncestorInitialContext), typeof(IStonGlobalEntityInitialContext)))
            .Add("StonPathSegment.Copy(IStonPathSegment)", () => ExpectImplementationException(() => StonPathSegment.Copy(new InvalidStonPathSegment()), typeof(InvalidStonPathSegment), typeof(IStonPathSegment), typeof(IStonAncestorPathSegment), typeof(IStonMemberPathSegment), typeof(IStonCollectionElementPathSegment)))

            // entity writing
            .Add("write invalid entity", () => ExpectImplementationException(() => new InvalidStonEntity().ToCanonicalForm(), typeof(InvalidStonEntity), typeof(IStonEntity), typeof(IStonValuedEntity), typeof(IStonReferenceEntity)))
            .Add("write invalid valued entity", () => ExpectImplementationException(() => new InvalidStonValuedEntity().ToCanonicalForm(), typeof(InvalidStonValuedEntity), typeof(IStonValuedEntity), typeof(IStonSimpleEntity), typeof(IStonComplexEntity)))
            .Add("write invalid type", () => ExpectImplementationException(() => new ASimpleEntity(null, new InvalidStonType()).ToCanonicalForm(), typeof(InvalidStonType), typeof(IStonType), typeof(IStonNamedType), typeof(IStonCollectionType), typeof(IStonUnionType)))
            .Add("write invalid binding key", () => ExpectImplementationException(() =>
                                                                                  new AReferenceEntity(new AnAddress(new StonAncestorInitialContext(0), new IStonPathSegment[] { new AMemberSegment(new InvalidStonBindingKey()) })).ToCanonicalForm(),
                                                                                  typeof(InvalidStonBindingKey), typeof(IStonBindingKey), typeof(IStonBindingName), typeof(IStonBindingIndex))
                 )
            .Add("write invalid initial context", () => ExpectImplementationException(() =>
                                                                                      new AReferenceEntity(new AnAddress(new InvalidStonInitialContext(), new IStonPathSegment[] { })).ToCanonicalForm(),
                                                                                      typeof(InvalidStonInitialContext), typeof(IStonInitialContext), typeof(IStonAncestorInitialContext), typeof(IStonGlobalEntityInitialContext))
                 )
            .Add("write invalid path segment", () => ExpectImplementationException(() =>
                                                                                   new AReferenceEntity(new AnAddress(new StonAncestorInitialContext(0), new IStonPathSegment[] { new InvalidStonPathSegment() })).ToCanonicalForm(),
                                                                                   typeof(InvalidStonPathSegment), typeof(IStonPathSegment), typeof(IStonAncestorPathSegment), typeof(IStonMemberPathSegment), typeof(IStonCollectionElementPathSegment))
                 )

            // validation
            .Add("Validator.ValidateEntity(IStonEntity)", () => ExpectImplementationException(() => ValidateEntity(new InvalidStonEntity()), typeof(InvalidStonEntity), typeof(IStonEntity), typeof(IStonValuedEntity), typeof(IStonReferenceEntity)))
            .Add("Validator.ValidateEntity(IStonValuedEntity)", () => ExpectImplementationException(() => ValidateEntity(new InvalidStonValuedEntity()), typeof(InvalidStonValuedEntity), typeof(IStonValuedEntity), typeof(IStonSimpleEntity), typeof(IStonComplexEntity)))
            .Add("Validator.ValidateType(IStonType)", () => ExpectImplementationException(() => ValidateType(new InvalidStonType()), typeof(InvalidStonType), typeof(IStonType), typeof(IStonNamedType), typeof(IStonCollectionType), typeof(IStonUnionType)))
            .Add("Validator.ValidateBindingKey(IStonValuedEntity)", () => ExpectImplementationException(() => ValidateBindingKey(new InvalidStonBindingKey()), typeof(InvalidStonBindingKey), typeof(IStonBindingKey), typeof(IStonBindingName), typeof(IStonBindingIndex)))
            .Add("Validator.ValidateInitialContext(IStonEntity)", () => ExpectImplementationException(() => ValidateInitialContext(new InvalidStonInitialContext()), typeof(InvalidStonInitialContext), typeof(IStonInitialContext), typeof(IStonAncestorInitialContext), typeof(IStonGlobalEntityInitialContext)))
            .Add("Validator.ValidatePathSegment(IStonValuedEntity)", () => ExpectImplementationException(() => ValidatePathSegment(new InvalidStonPathSegment()), typeof(InvalidStonPathSegment), typeof(IStonPathSegment), typeof(IStonAncestorPathSegment), typeof(IStonMemberPathSegment), typeof(IStonCollectionElementPathSegment)))

            .Run();
        }