code: def test_load_pandas_df_mock_100__with_default_param__succeed():
      df = load_pandas_df("mock100")
      assert type(df) == pandas.DataFrame
      assert len(df) == 100
      assert (
          not df[[DEFAULT_USER_COL, DEFAULT_ITEM_COL]]
          .duplicated()
          .any()
      )
  
imports: import os
  import gc
  import pandas
  from pandas.core.series import Series
  import pytest
  from pytest_mock import MockerFixture
  from recommenders.utils.constants import DEFAULT_GENRE_COL, DEFAULT_TITLE_COL
  from recommenders.datasets.movielens import MockMovielensSchema
  from recommenders.datasets.movielens import load_pandas_df, load_spark_df, load_item_df, download_movielens, extract_movielens
  from recommenders.datasets.movielens import DATA_FORMAT, MOCK_DATA_FORMAT, DEFAULT_HEADER, DEFAULT_ITEM_COL, DEFAULT_USER_COL
label_desc: Use image node_id 6 for calling a global function with example usage: test_load_pandas_df_mock_100__with_default_param__succeed() without return types