code: def testEmpty(self):
      # strong peak must be bigger than one element
      self.assertComputeFails(StrongPeak(), [])
  
file_path: essentia/test/src/unittests/spectral/test_strongpeak.py
imports: import math
  from essentia_test import *
label_desc: Use image node_id 1 for calling the TestStrongPeak obj's underlying member method code with example usage: obj.testEmpty() without return types