This tests that when requestIdleCallback is not enabled, requestIdleCallback and IdleDeadline are not defined. On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". PASS event.persisted is true PASS logs.length is 0 PASS logs.length is 7 PASS logs.join(", ") is "A1, B1, A2, B2, A3, B3, A4" PASS successfullyParsed is true TEST COMPLETE