add unit tests for action parameter type array
add unit tests for action parameter type array

StackStorm/st2,Plexxi/st2,StackStorm/st2,nzlosh/st2,Plexxi/st2,StackStorm/st2,Plexxi/st2,StackStorm/st2,nzlosh/st2,nzlosh/st2,Plexxi/st2,nzlosh/st2