@Test public void testFindLinesContaining() { String text = "LiXXXne 1\nLine 2\n\nLXXXine 4\r\nLine 5\r\nXXX\r\nLine 7"; List<String> lines = StringUtils.findLinesContaining(text, "XXX"); assertEquals(3, lines.size()); assertEquals("LiXXXne 1", lines.get(0)); assertEquals("LXXXine 4", lines.get(1)); assertEquals("XXX", lines.get(2)); }