class_docstr: Test all graphers with WAV input media format
class_docstr_tok: ["Test","all","graphers","with","WAV","input","media","format"]
docstr: Test WAV to WaveformTransparent
docstr_tok: ["Test","WAV","to","WaveformTransparent"]
code: def testWav2WaveformTransparent(self):
      "Test WAV to WaveformTransparent"
      from timeside.plugins.grapher.waveform_transparent import (
          WaveformTransparent,
      )
  
      self.source = samples["sweep.wav"]
      self.image = tempfile.NamedTemporaryFile(
          suffix="waveform_trans.png", delete=True
      )
      self.grapher = WaveformTransparent(
          width=1024, height=256, bg_color=None, color_scheme="default"
      )
  
file_path: TimeSide/tests/test_graphing.py
imports: from timeside.plugins.decoder.aubio import AubioDecoder
  import unittest
  from unit_timeside import TestRunner
  from timeside.core.tools.test_samples import samples
  import tempfile
  import os.path
label_desc: Use image node_id 4 for calling the TestGraphing obj's underlying member method code with example usage: obj.testWav2WaveformTransparent() without return types