@Test
public void multilineConstarintTest() throws IOException {

    List<String> list = new SimpleTextReader.Builder("test/multi_line_text_file.txt")
            .allowMatchingRegexp("^[^#]")
            .ignoreWhiteSpaceLines()
            .trim()
            .build()
            .asStringList();
    assertEquals(list.size(), 12);
    assertEquals(list.get(0), "uno");
    assertEquals(list.get(1), "dos");
}