#NEWLINE# def test_copy( self ) : #NEWLINE# #INDENT# m = Mesh ( 2 , 2 ) #NEWLINE# m2 = m #NEWLINE# m3 = m . copy ( ) #NEWLINE# m [ ( 1 , 1 ) ] = True #NEWLINE# self . assertTrue ( m2 [ ( 1 , 1 ) ] ) #NEWLINE# self . assertFalse ( m3 [ ( 1 , 1 ) ] )