docstr: running on ones gives 0 
docstr_tok: ["running","on","ones","gives","0"]
code: def test_run_on_ones(self):
      "running on ones gives 0"
      p = pitch("default", 2048, 512, 32000)
      f = fvec(512)
      f[:] = 1
      for _ in range(10):
          assert_equal(p(f), 0.0)
  
file_path: aubio/python/tests/test_pitch.py
imports: from numpy.testing import TestCase, assert_equal
  from numpy import sin, arange, mean, median, isnan, pi
  from aubio import fvec, pitch, freqtomidi, float_type
label_desc: Use image node_id 4 for calling the aubio_pitch_Good_Values obj's underlying member method code with example usage: obj.test_run_on_ones() without return types