@Test
public void testExitToGrouping() {
final GroupingEffectiveStatement baz = stack.enterGrouping(QName.create("foo", "baz"));
+ assertTrue(stack.inGrouping());
final DataTreeEffectiveStatement<?> xyzzy = stack.enterDataTree(QName.create("foo", "xyzzy"));
assertSame(xyzzy, stack.exitToDataTree());
assertSame(baz, stack.currentStatement());