Function os_inspector_sees_shell_as_pid1

tests/integration/kernel_integration.rs:3396–3424

()

        .find(|c| c.name == "home")
        .expect("/home should be in the tree");
    assert!(home.is_dir, "/home should be a directory");

    let readme = root
        .children
        .iter()
        .find(|c| c.name == "readme.txt")
        .expect("/readme.txt should be in the tree");
    assert!(!readme.is_dir, "/readme.txt should be a file");
    assert_eq!(
        readme.size as usize,
        body.len(),
        "file size should match the written bytes"
    );

    let preview = fs_view::file_preview(&vm, &sym, readme);
    assert_eq!(preview, body, "preview should round-trip the file contents");
}

// --- FS layout / symbol checks (no VM needed) ---

#[test]
fn kernel_fs_user_globals_in_mapped_range() {
    let assembled = compile_hosted(FS_EXERCISER);
    let flat = assembled.to_flat_binary();
    let padded = (flat.len().div_ceil(4096) * 4096) as u64;

    for sym in &["_a0", "_a1", "_a2", "_a3", "_ret"] {
        let off = assembled
            .symbol_address(sym)
            .unwrap_or_else(|| panic!("symbol '{sym}' missing from user binary"));
        assert!(
            off + 8 <= padded,