"Dan Foster
NASA hadn't
done actual integration tests between two nodes of the ISS until close
to launch time after someone belatedly suggested it.

Likewise no end-to-end test was done on Hubble because, in their world, it would
have added ten or twenty million to the cost.

Now they are going to launch the infrared Webb Telescope into a LaGrainge orbit
that canned be reached for service. If experience is any guide, one or two of
the optical detectors aren't going to work when it gets there.......we need
Hallerb to weigh in on this.