code: def test_clean_names_uppercase(dataframe):
      """Tests clean_names `case_type` parameter = upper."""
      df = dataframe.clean_names(case_type="upper", remove_special=True)
      expected_columns = [
          "A",
          "BELL_CHART",
          "DECORATED_ELEPHANT",
          "ANIMALS",
          "CITIES",
      ]
      assert set(df.columns) == set(expected_columns)
  
file_path: pyjanitor/tests/functions/test_clean_names.py
imports: import pandas
  import pytest
  from janitor.errors import JanitorError
label_desc: Use image node_id 3 for calling a global function with example usage: test_clean_names_uppercase(dataframe) without return types