[Tests] This method checks if given characters can be set as the content of element 'edition'. should return VAL_FALSE. [Method] 
canSetData
c a n A p p e n d D a t a
c a n D e l e t e D a t a
c a n I n s e r t D a t a
c a n R e p l a c e D a t a
c a n S e t D a t a
i s W h i t e s p a c e O n l y