This tests that the basic mechanisms of speaking text work, including sending the job and receiving the callback.
On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
PASS speechSynthesis.speaking is false
PASS event.elapsedTime >= 0 is true
PASS event.elapsedTime < 1000 is true
PASS speechSynthesis.speaking is true
PASS event.elapsedTime > 0 is true
PASS event.elapsedTime < 10000 is true
PASS speechSynthesis.speaking is false
PASS successfullyParsed is true
TEST COMPLETE