code: def test_extract_text_from_pdf(self):
      pdf_file_path = os.path.join(test_dir, "example.pdf")
      assert "".join(expected_text.split()) == "".join(
          extract_text_from_pdf(pdf_file_path).strip().split()
      )
  
file_path: autogen/test/test_retrieve_utils.py
imports: import pytest
  import os
label_desc: Use image node_id 3 for calling the TestRetrieveUtils obj's underlying member method code with example usage: obj.test_extract_text_from_pdf() without return types