joking vs jesting

joking and jesting both are adjectives.

Word	Noun	Adjective	Verb	Adverb
joking	No	Yes	No	No
jesting	No	Yes	No	No

As adjectives, joking and jesting are synonyms defined as:

Other synonyms of joking include jocose, jocular.

joking (adjective)	jesting (adjective)
characterized by jokes and good humor	characterized by jokes and good humor