@Test
public void testOutputElementMixedMultiZeroText() {
// this test has mixed content (text-type and not text type).
// and, it has a multi-text-type at the end.
Element root = new Element("root");
root.addContent(new Comment("Boo"));
root.addContent(new Text(""));
root.addContent(new Text(" "));
root.addContent(new Text(""));
root.addContent(new Text("txt"));
root.addContent(new Text(""));