Handling AggregateExceptions from Task execution

HandleAggregateException_UnitTest.cs

[TestMethod]
public void GetCSRInfo_BadOperation_ThrowsExceptionAndIsHandled()
{
    //  Arrange
    var uscAPI = RestService.For<IUscApi>(_uscapiurl);
    string csrCode = "404";

    //  Act
    try
    {
        CsrInfo item = uscAPI.GetCSRInfo(csrCode).Result.FirstOrDefault();
    }
    catch (AggregateException ae)
    {
        ae.Handle((x) =>
        {
            Debug.WriteLine("There was a problem getting the CSR information: " + x.Message);

            //  Assert
            Assert.IsTrue(x is ApiException);
            return true;
        });                
    }

}