This tests the constructor for the MediaQueryListEvent DOM class. On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". PASS new MediaQueryListEvent('eventType').bubbles is false PASS new MediaQueryListEvent('eventType').cancelable is false PASS new MediaQueryListEvent('eventType').media is "" PASS new MediaQueryListEvent('eventType').matches is false PASS new MediaQueryListEvent('eventType', { bubbles: true, cancelable: true }).bubbles is true PASS new MediaQueryListEvent('eventType', { bubbles: true, cancelable: true }).cancelable is true PASS new MediaQueryListEvent('eventType').media is "" PASS new MediaQueryListEvent('eventType').matches is false PASS new MediaQueryListEvent('eventType', { media: 'string' }).media is "string" PASS new MediaQueryListEvent('eventType', { matches: true }).matches is true PASS successfullyParsed is true TEST COMPLETE