Spannable spannable = newSpannableWithText("abcdef");
Object emptySpan = new Object();
spannable.setSpan(emptySpan, 1, 1, 0);
Object unemptySpan = new Object();
spannable.setSpan(unemptySpan, 1, 2, 0);
Object[] spans;
// Empty spans are included when they merely abut the query region
// but other spans are not, unless the query region is empty, in
// in which case any abutting spans are returned.
spans = spannable.getSpans(0, 1, Object.class);
MoreAsserts.assertEquals(new Object[]{emptySpan}, spans);
spans = spannable.getSpans(0, 2, Object.class);
MoreAsserts.assertEquals(new Object[]{emptySpan, unemptySpan}, spans);
spans = spannable.getSpans(1, 2, Object.class);
MoreAsserts.assertEquals(new Object[]{emptySpan, unemptySpan}, spans);
spans = spannable.getSpans(2, 2, Object.class);
MoreAsserts.assertEquals(new Object[]{unemptySpan}, spans);
