code: def testRamp(self):
      # generate test signal
      signalSize = 10 * self.params["frameSize"]
      signal = 0.5 * array(
          [
              float(2 * i % signalSize) / signalSize
              for i in range(signalSize)
          ]
      )
  
      outsignal = analysisSynthesisStreaming(self.params, signal)
      outsignal = outsignal[
          :signalSize
      ]  # cut to duration of input signal
  
      # compare without half-window bounds to avoid windowing effect
      halfwin = self.params["frameSize"] // 2
      self.assertAlmostEqualVectorFixedPrecision(
          outsignal[halfwin:-halfwin],
          signal[halfwin:-halfwin],
          self.precisionDigits,
      )
  
file_path: essentia/test/src/unittests/synthesis/test_overlapadd_streaming.py
imports: from essentia_test import *
  import math
  import essentia
  import essentia.streaming
  import essentia.standard
label_desc: Use image node_id 3 for calling the TestOverlapAdd obj's underlying member method code with example usage: obj.testRamp() without return types