This tests whether a Sender, by itself, makes any calls to the
setError function.
If a Sender is connected to a Receiver that has a non-nothrow
setValue function, a Sender can still throw, but only Exceptions
throw from that Receiver's setValue function.
This tests whether a Sender, by itself, makes any calls to the setError function. If a Sender is connected to a Receiver that has a non-nothrow setValue function, a Sender can still throw, but only Exceptions throw from that Receiver's setValue function.