def tearDown(self):
     scs = SCSBucket(self.bucket_name)
     if scs.exist() :
         try:
             file_gen = scs.listdir()
             for item in file_gen:
                 if not item[1]:
                     scs.delete(item[0])
             scs.delete_bucket()
         except Exception as err:
             self.fail('empty bucket failed.Error is %s'%err)
 def test_bucket_exist(self):
     scs = SCSBucket(self.bucket_name)
     scs.put_bucket()
     self.assertTrue(scs.exist(), 'not true')