assertEquals(6, messages.size());
        assertEquals("system", messages.get(0).getRole());
        assertEquals("user", messages.get(1).getRole());
        assertEquals("assistant", messages.get(2).getRole());
        assertEquals("user", messages.get(3).getRole());
        assertEquals("assistant", messages.get(4).getRole());
        assertTrue(messages.get(5).getContent().contains("More details"));
    }

    @Test

        final List<int[]> turns = new ArrayList<>();
        int idx = 0;
        while (idx < history.size()) {
            if (idx + 1 < history.size() && "user".equals(history.get(idx).getRole())
                    && "assistant".equals(history.get(idx + 1).getRole())) {
                turns.add(new int[] { idx, idx + 2 });
                idx += 2;
            } else {
                turns.add(new int[] { idx, idx + 1 });