// maxMessages=6, so only last 6
        assertEquals(6, request.getMessages().size());
        assertEquals("Q4", request.getMessages().get(0).getContent());
    }

    @Test
    public void test_addIntentHistory_charBudgetCutsOff() {
        client.setTestIntentHistoryMaxChars(10);
        final List<LlmMessage> history = new ArrayList<>();
        history.add(LlmMessage.user("A".repeat(20))); // 20 chars - won't fit