/**
* This test was inspired by an actual bug in one of implementations: initial state was not
* properly set if nextTag() was called (instead of nextEvent()), and subsequent peek() failed.
*/
public void testPeek() throws XMLStreamException {
String XML = "<root>text</root>";
for (int i = 0; i < 4; ++i) {
boolean ns = (i & 1) != 0;
boolean coal = (i & 2) != 0;
XMLEventReader er = getReader(XML, ns, coal);
assertTokenType(START_DOCUMENT, er.nextEvent().getEventType());
XMLEvent tag = er.nextTag();
assertTokenType(START_ELEMENT, tag.getEventType());
// Now, peek() should produce text..
XMLEvent text = er.peek();
assertTokenType(CHARACTERS, text.getEventType());
Characters chars = text.asCharacters();
assertNotNull(chars);
assertEquals("text", chars.getData());
// and need nextEvent() to get rid of it, too:
text = er.nextEvent();
// Let's verify it again:
assertTokenType(CHARACTERS, text.getEventType());
chars = text.asCharacters();
assertNotNull(chars);
assertEquals("text", chars.getData());
assertTokenType(END_ELEMENT, er.nextTag().getEventType());
assertTokenType(END_DOCUMENT, er.nextEvent().getEventType());
// And at the end, peek() should return null
assertNull(er.peek());
}
}
@Override
public Characters asCharacters() {
return delegate.asCharacters();
}
