1 Check serialization of ::cue and ::cue()
3 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
7 PASS rules[0].selectorText is '*::cue'
8 PASS rules[1].selectorText is '*::cue(c)'
9 PASS rules[2].selectorText is '*::cue(c,.class,#id:past,i:future)'
10 PASS successfullyParsed is true