consolidate common test code for "text content inside restricted elements"
consolidate common test code for "text content inside restricted elements"

getshuvo/knockout,mattbalmer/knuckles,martijnwetering/knockout,DekeYan/knockout,moonpyk/knockout,pianove/knockout,stonegithubs/knockout,stonegithubs/knockout,cgourlay/knockout,xeronith/knockout,DekeYan/knockout,youprofit/knockout,youprofit/knockout,ErikSchierboom/knockout,Sir0xb/knockout,bago/knockout,Sir0xb/knockout,JesseQin/knockout,skyh/knockout,pianove/knockout,gwokudasam/knockout,brianmhunt/knockout,JesseQin/knockout,xeronith/knockout,martijnwetering/knockout,bago/knockout,skyh/knockout,cgourlay/knockout,hitesh97/knockout,gwokudasam/knockout,hitesh97/knockout,mattbalmer/knuckles,moonpyk/knockout,ErikSchierboom/knockout,brianmhunt/knockout,getshuvo/knockout