@Test
public void testReadRegexSplittedFile() throws Exception {

  File testFile = getTestTempFile("testRegex.txt");
  writeLines(testFile, DATA_SPLITTED_WITH_TWO_SPACES);
  FileDataModel model = new FileDataModel(testFile,"\\s+");
  assertEquals(model.getItemIDsFromUser(123).size(), 3);
  assertEquals(model.getItemIDsFromUser(456).size(), 4);
}