code: def test_bar_formatting_steps_equal_to_bar_length(self):
      equal_bar_length = ProgressBarTest.BAR_LENGTH
      progress_bar = ProgressBar(
          steps=equal_bar_length,
          bar_length=ProgressBarTest.BAR_LENGTH,
          bar_character="#",
          partial_bar_characters=[" "],
      )
  
      self.assertEqual(
          progress_bar.progress_bar_formatting(), " " * equal_bar_length
      )
      for step in range(1, equal_bar_length + 1):
          progress_bar.update()
          self.assertEqual(
              progress_bar.progress_bar_formatting(),
              "#" * step + " " * (equal_bar_length - step),
          )
  
file_path: poutyne/tests/framework/callbacks/test_progress_bar.py
imports: from unittest import TestCase
  from poutyne import ProgressBar
label_desc: Use image node_id 2 for calling the ProgressBarTest obj's underlying member method code with example usage: obj.test_bar_formatting_steps_equal_to_bar_length() without return types