This test has succeeded, if all of the following criteria are fulfilled:
A) Checking/Unchecking any of the checkboxes, must add/delete the corresponding textvalue to/from the textarea,
B) After each addition/deletion, the value of the textarea must be selected,
C) Clicking 'Reset' must uncheck all checkboxes and clear the textarea,
D) Clicking 'Submit' must display a text message.