https://techcrunch.com/2018/01/24/spacex-test-fires-falcon-heavy-rocket-readies-for-launch-in-a-week-or-so/

SpaceX has successfully test fired its Falcon Heavy rocket – but this is just the prelude to the big show. The static test fire performed today is a necessary step prior to an actual test launch, firing up all 27 of the rocket’s big Merlin engines prior to trying to do the same but actually following through with a proper take-off.

The test fire, completed at the SpaceX Cape Canaveral launch facility from which Falcon Heavy will make its first voyage, occurred early Wednesday afternoon, and SpaceX signalled following the test that all went well. SpaceX CEO Elon Musk then revealed that because of the good firing of the engines, it’s now on track for launch within the next “week or so.”