* if a string has leading or trailing white spaces
*/
public void testPreserveSpaces() {
XSSFRichTextString rt = new XSSFRichTextString("Apache");
CTRst ct = rt.getCTRst();
STXstring xs = ct.xgetT();
assertEquals("<xml-fragment>Apache</xml-fragment>", xs.xmlText());
rt.setString(" Apache");
assertEquals("<xml-fragment xml:space=\"preserve\"> Apache</xml-fragment>", xs.xmlText());
}