code: def test_multicolumn_factorize_columns_empty_suffix():
      """Tests if Multi Column Factorize works with empty suffix"""
      df = pd.DataFrame(
          {
              "a": ["hello", "hello", "sup"],
              "b": [1, 2, 3],
              "c": ["aloha", "nihao", "nihao"],
          }
      ).factorize_columns(column_names=["a", "c"], suffix="")
      assert "a_enc" not in df.columns
      assert "c_enc" not in df.columns
      assert 3 == len(df.columns)
  
file_path: pyjanitor/tests/functions/test_factorize_columns.py
imports: import pandas
  import pytest
  import janitor
label_desc: Use image node_id 5 for calling a global function with example usage: test_multicolumn_factorize_columns_empty_suffix() without return types