public void RearrangeShouldReturnJson()
        {
            ////Arrange
            providerService.Arrange(s => s.Search(Arg.IsAny <ProviderQueryModel>())).Returns(
                new List <Provider>
            {
                Mapper.Map <Provider>(DataHelper.GetProvider()), Mapper.Map <Provider>(DataHelper.GetProvider())
            });
            ////Act
            var result = providerController.Rearrange(0, 1);

            ////Assert
            result.Should().BeOfType(typeof(JsonResult));
        }