code: def test_single_split_splitter(records):
      data_splitter = SingleSplitSplitter()
      splits = data_splitter(records)
      assert splits == [["file1", "file2", "file3", "file4"]]
  
file_path: icevision/tests/data/test_record_collection.py
imports: import pytest
  from icevision.all import *
label_desc: Use image node_id 2 for calling a global function with example usage: test_single_split_splitter(records) without return types