public void TestDeleteDerived()
        {
            // should allow deleting derived resource

            ImageUploadParams uploadParams = new ImageUploadParams()
            {
                File            = new FileDescription(m_testImagePath),
                EagerTransforms = new List <Transformation>()
                {
                    new Transformation().Width(101).Crop("scale")
                },
                PublicId = "testdeletederived"
            };

            m_cloudinary.Upload(uploadParams);

            GetResourceResult resource = m_cloudinary.GetResource("testdeletederived");

            Assert.IsNotNull(resource);
            Assert.AreEqual(1, resource.Derived.Length);

            DelDerivedResResult delDerivedResult =
                m_cloudinary.DeleteDerivedResources(resource.Derived[0].Id);

            Assert.AreEqual(1, delDerivedResult.Deleted.Values.Count);

            resource = m_cloudinary.GetResource("testdeletederived");

            Assert.IsFalse(String.IsNullOrEmpty(resource.PublicId));
        }