llmx/llmx-rs/core/tests/suite/deprecation_notice.rs

#![cfg(not(target_os = "windows"))]

use anyhow::Ok;
use core_test_support::responses::start_mock_server;
use core_test_support::skip_if_no_network;
use core_test_support::test_llmx::TestLlmx;
use core_test_support::test_llmx::test_llmx;
use core_test_support::wait_for_event_match;
use llmx_core::features::Feature;
use llmx_core::protocol::DeprecationNoticeEvent;
use llmx_core::protocol::EventMsg;
use pretty_assertions::assert_eq;

#[tokio::test(flavor = "multi_thread", worker_threads = 2)]
async fn emits_deprecation_notice_for_legacy_feature_flag() -> anyhow::Result<()> {
    skip_if_no_network!(Ok(()));

    let server = start_mock_server().await;

    let mut builder = test_llmx().with_config(|config| {
        config.features.enable(Feature::UnifiedExec);
        config
            .features
            .record_legacy_usage_force("use_experimental_unified_exec_tool", Feature::UnifiedExec);
        config.use_experimental_unified_exec_tool = true;
    });

    let TestLlmx { llmx, .. } = builder.build(&server).await?;

    let notice = wait_for_event_match(&llmx, |event| match event {
        EventMsg::DeprecationNotice(ev) => Some(ev.clone()),
        _ => None,
    })
    .await;

    let DeprecationNoticeEvent { summary, details } = notice;
    assert_eq!(
        summary,
        "`use_experimental_unified_exec_tool` is deprecated. Use `unified_exec` instead."
            .to_string(),
    );
    assert_eq!(
        details.as_deref(),
        Some(
            "Enable it with `--enable unified_exec` or `[features].unified_exec` in config.toml. See https://github.com/valknar/llmx/blob/main/docs/config.md#feature-flags for details."
        ),
    );

    Ok(())
}