public void Attachments_GetData()
{
// Set test GetData method w/o parameters
request.Setup(m => m.Get <Stream>("attachments/666/data", null)).Returns(new MemoryStream());
// Test Get method
var result = attachmentsProxy.GetData(666);
// Verify test
Assert.IsNotNull(result);
Assert.IsTrue(result.IsSuccessful);
Assert.IsNotNull(result.Data);
}