A road map to perform the CRUD operations for a brand object
Inheritance: IBrandService
 public void TestBrandServiceUpdateForNullReference()
 {
     BrandService bs = new BrandService(null);
     bs.Update(null);
 }
 public void TestBrandServiceEqualsForNullReference()
 {
     BrandService bs = new BrandService(null);
     bs.GetAllBrands();
 }
 public void TestBrandServiceInsertrNullReference()
 {
     BrandService bs = new BrandService(null);
     bs.Insert(null);
 }
 public void TestBrandServiceDeleteForNullReference()
 {
     BrandService bs = new BrandService(null);
     bs.Delete(null);
 }