Trident Test Fire: Fact or Fiction?

Did the US test-fire a nuclear-capable Trident from Saudi waters? Depends who you listen to; Debka says 'A US defense spokesman denied the Trident's launch, Wednesday, April 1, but Saudi security sources stand by the report' but Stratfor (subscription service) says the report is false. However, whether or not the launch actually occurred, the message seems to be that the US is extending the umbrella of nuclear deterrence to the Persian Gulf.