Tests the regionId attribute of a cue.


** Test the setter and getter through the JS API **
EXPECTED (cue.regionId == '') OK
EXPECTED (cue.regionId == 'someId') OK

** Test parsing a region attribute of a cue **
EXPECTED (cue.regionId == 'someregionattributeid') OK

** Test that region attribute is ignored if either line position or cue size are specified or writing direction is not horizontal **
EXPECTED (cue.regionId == '') OK
EXPECTED (cue.regionId == '') OK
EXPECTED (cue.regionId == '') OK

END OF TEST