This test creates a box, adds a transition, then sets the left property. It will only have reproducible output when run in the test system

*** Starting test.
Transitions should not be suspended: PASS
*** Suspending Animations/Transitions
Transitions should be suspended: PASS
*** Creating the box.
*** Adding transition property and setting left to 100px. We should NOT see transition events.
*** Resuming Animations/Transitions
Transitions should not be suspended: PASS
PASS: Transition ended on element with id: box