/** * Performs the assert-equals function. * * @param ctx query context * @return resulting value * @throws QueryException query exception */ private Item assertEquals(final QueryContext ctx) throws QueryException { final byte[] str = expr.length < 3 ? null : checkStr(expr[2], ctx); final Iter iter1 = ctx.iter(expr[0]), iter2 = ctx.iter(expr[1]); final Compare comp = new Compare(info); Item it1, it2; int c = 1; while (true) { it1 = iter1.next(); it2 = iter2.next(); final boolean empty1 = it1 == null, empty2 = it2 == null; if (empty1 && empty2) return null; if (empty1 || empty2 || !comp.deep(it1.iter(), it2.iter())) break; c++; } if (str != null) throw UNIT_MESSAGE.get(info, str); throw new UnitException(info, UNIT_ASSERT_EQUALS, it1, it2, c); }
@Override public Iter iter(final QueryContext qc) throws QueryException { final Item it = item(qc, info); return it != null ? it.iter() : Empty.ITER; }