Test that adding and removing class names with no matching selector does not cause a style recalc
On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
PASS internals.updateStyleAndReturnAffectedElementCount() is 1
PASS internals.updateStyleAndReturnAffectedElementCount() is 1
PASS internals.updateStyleAndReturnAffectedElementCount() is 0
PASS internals.updateStyleAndReturnAffectedElementCount() is 0
PASS internals.updateStyleAndReturnAffectedElementCount() is 1
PASS internals.updateStyleAndReturnAffectedElementCount() is 0
PASS internals.updateStyleAndReturnAffectedElementCount() is 0
PASS internals.updateStyleAndReturnAffectedElementCount() is 0
PASS internals.updateStyleAndReturnAffectedElementCount() is 0
PASS internals.updateStyleAndReturnAffectedElementCount() is 0
PASS internals.updateStyleAndReturnAffectedElementCount() is 0
PASS successfullyParsed is true
TEST COMPLETE