public void Test_BlobStorage_MsiConfig()
        {
            // Arrange
            var client = new BlobStorage(new MsiConfig {
                InstanceName = "test", SubscriptionId = "test", TenantId = "test"
            });

            // Act/Assert
            Assert.Throws <InvalidOperationException>(() => client.BuildStorageConnection().GetAwaiter().GetResult());
        }