#NEWLINE# def tst_rate_attribute_is_None( self ) : #NEWLINE# #INDENT# 'testing if the rate attribute can be set to None\n        ' #NEWLINE# from anima.edit import Rate #NEWLINE# r = Rate ( timebase = '24' , ntsc = False ) #NEWLINE# c = Clip ( rate = r ) #NEWLINE# self . assertIsNotNone ( r . rate ) #NEWLINE# c . rate = None #NEWLINE# self . assertIsNone ( c . rate )