use super::*;fn config(    mode: CodeEditorLineNumberMode,    starting_line_number: Option<usize>,    active_line_number: Option<LineCount>,) -> LineNumberConfig {    LineNumberConfig {        font_family: FamilyId(0),        font_size: 0.,        text_color: ColorU::transparent_black(),        highlight_text_color: ColorU::transparent_black(),        starting_line_number,        mode,        active_line_number,        active_cursor_is_visible: true,    }} #[test]fn absolute_line_numbers_default_to_one_based_values() {    let config = config(CodeEditorLineNumberMode::Absolute, None, None);     assert_eq!(config.absolute_line_number(LineCount::from(0)), 1);    assert_eq!(config.absolute_line_number(LineCount::from(4)), 5);} #[test]fn absolute_line_numbers_honor_starting_line_number() {    let config = config(CodeEditorLineNumberMode::Absolute, Some(10), None);     assert_eq!(config.absolute_line_number(LineCount::from(0)), 10);    assert_eq!(config.absolute_line_number(LineCount::from(4)), 14);} #[test]fn relative_line_numbers_show_absolute_value_on_active_line() {    let config = config(        CodeEditorLineNumberMode::Relative,        None,        Some(LineCount::from(4)),    );    assert_eq!(config.display_line_number(LineCount::from(4)), 5);} #[test]fn relative_line_numbers_show_distance_above_and_below_active_line() {    let config = config(        CodeEditorLineNumberMode::Relative,        None,        Some(LineCount::from(5)),    );    assert_eq!(config.display_line_number(LineCount::from(2)), 3);    assert_eq!(config.display_line_number(LineCount::from(8)), 3);} #[test]fn relative_line_numbers_fall_back_to_absolute_without_active_line() {    let config = config(CodeEditorLineNumberMode::Relative, None, None);    assert_eq!(config.display_line_number(LineCount::from(4)), 5);} #[test]fn relative_line_numbers_use_starting_line_number_for_active_line_only() {    let config = config(        CodeEditorLineNumberMode::Relative,        Some(10),        Some(LineCount::from(4)),    );    assert_eq!(config.display_line_number(LineCount::from(4)), 14);    assert_eq!(config.display_line_number(LineCount::from(1)), 3);}