code: def testBSplineEqualsBetaSpline(self):
      # only true when beta1=1 and beta2=0
      beta1 = 1.0
      beta2 = 0.0
      expected = readVector(join(filedir(), "spline/bSpline.txt"))
      self.evaluateBetaSpline(beta1, beta2, expected)
  
file_path: essentia/test/src/unittests/standard/test_spline.py
imports: from essentia_test import *
  from essentia.standard import *
  from numpy import r_, sin, pi
label_desc: Use image node_id 7 for calling the TestSpline obj's underlying member method code with example usage: obj.testBSplineEqualsBetaSpline() without return types