A Helper method converting AggregateException to the internal exception for NUnit

gistfile1.cs

// In CUI test runner, to use await syntax at the test code is involved skipping test.
// So It nessesary to wait using Task#Wait() method.
// In Assert#Throws method for NUnit, threfore, expected exception is not thrown but  AggregateException.
// Following method is conversion AggregateException to the internal exception.
private TestDelegate ResolveAggregateException(Action inTestAction) {
    return () => {
        try {
            inTestAction();
        }
        catch (AggregateException ex) {
            throw ex.InnerException;
        }
    };
}