ScenariiTesting.Areas.HelpPage.ObjectGenerator.GenerateGenericType C# (CSharp) Метод

        private static object GenerateGenericType(Type type, int collectionSize, Dictionary<Type, object> createdObjectReferences)
        {
            Type genericTypeDefinition = type.GetGenericTypeDefinition();
            if (genericTypeDefinition == typeof(Nullable<>))
            {
                return GenerateNullable(type, createdObjectReferences);
            }

            if (genericTypeDefinition == typeof(KeyValuePair<,>))
            {
                return GenerateKeyValuePair(type, createdObjectReferences);
            }

            if (IsTuple(genericTypeDefinition))
            {
                return GenerateTuple(type, createdObjectReferences);
            }

            Type[] genericArguments = type.GetGenericArguments();
            if (genericArguments.Length == 1)
            {
                if (genericTypeDefinition == typeof(IList<>) ||
                    genericTypeDefinition == typeof(IEnumerable<>) ||
                    genericTypeDefinition == typeof(ICollection<>))
                {
                    Type collectionType = typeof(List<>).MakeGenericType(genericArguments);
                    return GenerateCollection(collectionType, collectionSize, createdObjectReferences);
                }

                if (genericTypeDefinition == typeof(IQueryable<>))
                {
                    return GenerateQueryable(type, collectionSize, createdObjectReferences);
                }

                Type closedCollectionType = typeof(ICollection<>).MakeGenericType(genericArguments[0]);
                if (closedCollectionType.IsAssignableFrom(type))
                {
                    return GenerateCollection(type, collectionSize, createdObjectReferences);
                }
            }

            if (genericArguments.Length == 2)
            {
                if (genericTypeDefinition == typeof(IDictionary<,>))
                {
                    Type dictionaryType = typeof(Dictionary<,>).MakeGenericType(genericArguments);
                    return GenerateDictionary(dictionaryType, collectionSize, createdObjectReferences);
                }

                Type closedDictionaryType = typeof(IDictionary<,>).MakeGenericType(genericArguments[0], genericArguments[1]);
                if (closedDictionaryType.IsAssignableFrom(type))
                {
                    return GenerateDictionary(type, collectionSize, createdObjectReferences);
                }
            }

            if (type.IsPublic || type.IsNestedPublic)
            {
                return GenerateComplexObject(type, createdObjectReferences);
            }

            return null;
        }