1 Tests the regionOversetChange event for regions inside flexboxes
3 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
6 Flowing content into regions...
7 PASS event.target.name is "article"
9 PASS event.target.name is "article"
10 PASS eventFiredCount is 2
11 PASS successfullyParsed is true