code: def testZero(self):
      input1 = zeros(10)
      input2 = zeros(10)
      self.assertEqualVector(self.add(input1, input2), input1)
      self.assertEqualVector(self.sub(input1, input2), input1)
      self.assertEqualVector(self.prod(input1, input2), input1)
      self.assertComputeFails(self.div, input1, input2)
  
file_path: essentia/test/src/unittests/standard/test_binaryoperator.py
imports: from essentia_test import *
label_desc: Use image node_id 3 for calling the TestBinaryOperator obj's underlying member method code with example usage: obj.testZero() without return types