#NEWLINE# def test_check_int( self ) : #NEWLINE# #INDENT# x = 5 #NEWLINE# self . assertEqual ( check_int ( 'x' , x ) , None ) #NEWLINE# x = [ { #NEWLINE# #INDENT# #NEWLINE# #UNINDENT# } ] #NEWLINE# self . assertEqual ( check_int ( 'x' , x ) , 'x is not an integer' )