use codex_features::Feature;use codex_utils_path_uri::PathUri;use core_test_support::responses::ev_completed;use core_test_support::responses::ev_response_created;use core_test_support::responses::mount_sse_once;use core_test_support::responses::sse;use core_test_support::responses::start_mock_server;use core_test_support::skip_if_wine_exec;use core_test_support::test_codex::test_codex;const HIERARCHICAL_AGENTS_SNIPPET: &str =    "Files called AGENTS.md commonly appear in many places inside a container";#[tokio::test(flavor = "multi_thread", worker_threads = 2)]async fn hierarchical_agents_appends_to_project_doc_in_user_instructions() {    // TODO(anp): Remove after instruction-source helpers use target-native paths.    skip_if_wine_exec!("requires native cross-OS instruction-source paths");    let server = start_mock_server().await;    let resp_mock = mount_sse_once(        &server,        sse(vec![ev_response_created("resp1"), ev_completed("resp1")]),    )    .await;    let mut builder = test_codex()        .with_config(|config| {            config                .features                .enable(Feature::ChildAgentsMd)                .expect("test config should allow feature update");        })        .with_workspace_setup(|cwd, fs| async move {            let agents_md = cwd.join("AGENTS.md");            let agents_md_uri = PathUri::from_path(&agents_md)?;            fs.write_file(&agents_md_uri, b"be nice".to_vec(), /*sandbox*/ None)                .await?;            Ok::<(), anyhow::Error>(())        });    let test = builder        .build_with_remote_env(&server)        .await        .expect("build test codex");    test.submit_turn("hello").await.expect("submit turn");    let request = resp_mock.single_request();    let user_messages = request.message_input_texts("user");    let instructions = user_messages        .iter()        .find(|text| text.starts_with("# AGENTS.md instructions"))        .expect("instructions message");    assert!(        instructions.contains("be nice"),        "expected AGENTS.md text included: {instructions}"    );    let snippet_pos = instructions        .find(HIERARCHICAL_AGENTS_SNIPPET)        .expect("expected hierarchical agents snippet");    let base_pos = instructions        .find("be nice")        .expect("expected AGENTS.md text");    assert!(        snippet_pos > base_pos,        "expected hierarchical agents message appended after base instructions: {instructions}"    );}#[tokio::test(flavor = "multi_thread", worker_threads = 2)]async fn hierarchical_agents_emits_when_no_project_doc() {    let server = start_mock_server().await;    let resp_mock = mount_sse_once(        &server,        sse(vec![ev_response_created("resp1"), ev_completed("resp1")]),    )    .await;    let mut builder = test_codex().with_config(|config| {        config            .features            .enable(Feature::ChildAgentsMd)            .expect("test config should allow feature update");    });    let test = builder        .build_with_remote_env(&server)        .await        .expect("build test codex");    test.submit_turn("hello").await.expect("submit turn");    let request = resp_mock.single_request();    let user_messages = request.message_input_texts("user");    let instructions = user_messages        .iter()        .find(|text| text.starts_with("# AGENTS.md instructions"))        .expect("instructions message");    assert!(        instructions.contains(HIERARCHICAL_AGENTS_SNIPPET),        "expected hierarchical agents message appended: {instructions}"    );}