use alpha_id::segment::split_segments;

#[test]
fn one_unit_per_nonempty_line() {
    let input = "arterielle Hypertonie\nTyp-2-Diabetes mit Polyneuropathie\ngemischte Hyperlipidämie";
    assert_eq!(split_segments(input), vec![
        "arterielle Hypertonie".to_string(),
        "Typ-2-Diabetes mit Polyneuropathie".to_string(),
        "gemischte Hyperlipidämie".to_string(),
    ]);
}

#[test]
fn blank_and_whitespace_lines_are_skipped_and_each_line_trimmed() {
    let input = "  \n\n  Kreuzschmerz \n   \nGonarthrose rechts\n\n";
    assert_eq!(split_segments(input), vec![
        "Kreuzschmerz".to_string(),
        "Gonarthrose rechts".to_string(),
    ]);
}

#[test]
fn single_phrase_is_one_unit() {
    assert_eq!(split_segments("nur eine Diagnose"), vec!["nur eine Diagnose".to_string()]);
}

#[test]
fn empty_or_whitespace_only_input_yields_no_units() {
    assert!(split_segments("   \n\n").is_empty());
}