Fills specified instance with default values.

testutil.cs

        private static void FillInstanceWithDefaults(object instance)
        {
            if (instance == null)
                return;

            if (instance.GetType().FullName.StartsWith("System."))
                return;

            instance.GetType()
                    .GetProperties()
                    .ToList()
                    .ForEach(property =>
                    {
                        if (property.PropertyType == typeof(string))
                        {
                            property.SetValue(instance, "string value");
                        }
                        else if (!property.PropertyType.IsValueType)
                        {
                            var value = Activator.CreateInstance(property.PropertyType);
                            FillInstanceWithDefaults(value);
                            property.SetValue(instance, value);
                        }
                    });
        }