code: def test_load_csv():
      _, length = create_data()
      data = load_csv("test.csv")
      assert (
          len(data) == length
      ), "Loaded data differ from what it should be, got {}, expected {}.".format(
          len(data), len(df)
      )
      clean_data()
  
file_path: AmpliGraph/tests/ampligraph/datasets/test_source_identifier.py
imports: import numpy
  import pytest
  import pandas
  from ampligraph.datasets import load_csv, chunks
  from ampligraph.datasets.source_identifier import DataSourceIdentifier
  import os
label_desc: Use image node_id 5 for calling a global function with example usage: test_load_csv() without return types