public void TestInitialize()
 {
     this.learnNowContext = new LearnNowContext();
     this.resourceMapper  = new ResourceMapper(
         this.learnNowContext);
     this.resourceViewModel = new ResourceViewModel()
     {
         Id           = Guid.NewGuid(),
         GradeId      = Guid.NewGuid(),
         Title        = "Test subject",
         Description  = "Test description",
         ImageUrl     = "Https://test.jpg",
         ResourceType = 1,
     };
     this.resourceEntityModel = new Resource()
     {
         Id           = Guid.NewGuid(),
         GradeId      = Guid.NewGuid(),
         Title        = "Test subject",
         Description  = "Test description",
         ImageUrl     = "Https://test.jpg",
         ResourceType = 1,
         UpdatedBy    = Guid.NewGuid(),
     };
 }
 /// <summary>
 /// Initializes a new instance of the <see cref="UnitOfWork"/> class.
 /// </summary>
 /// <param name="context">context to be used with database and can be used to query and to save instance of entities.</param>
 public UnitOfWork(LearnNowContext context)
 {
     this.context = context;
 }