tix-tracker 0.12.0

#[allow(clippy::wildcard_imports)]
use super::super::*;
#[allow(clippy::wildcard_imports)]
use super::helpers::*;

/// Every configured board is listed under the Board trunk, and the active one
/// is marked (`NavBranch::active`) so the rail draws it bold.
#[test]
fn boards_limb_lists_every_board_and_marks_the_active_one() {
    // A single board is still listed (and is the active one).
    let (_tmp, app) = make_app();
    let board = app
        .nav_tree()
        .into_iter()
        .find(|node| node.mode == TopMode::Board)
        .expect("the Board trunk exists");
    assert_eq!(
        board
            .branches
            .iter()
            .map(|b| b.label.as_str())
            .collect::<Vec<_>>(),
        vec!["default"]
    );
    assert_eq!(board.branches[0].kind, crate::ui::nav::BranchKind::Board);
    assert!(board.branches[0].active, "the only board is active");

    // Two boards: both listed, only the active one marked.
    let (_tmp, app) = make_branchy_app();
    let board = app
        .nav_tree()
        .into_iter()
        .find(|node| node.mode == TopMode::Board)
        .expect("the Board trunk exists");
    assert_eq!(
        board
            .branches
            .iter()
            .map(|b| b.label.as_str())
            .collect::<Vec<_>>(),
        vec!["default", "release"]
    );
    assert_eq!(
        board
            .branches
            .iter()
            .filter(|b| b.active)
            .map(|b| b.label.as_str())
            .collect::<Vec<_>>(),
        vec!["default"],
        "exactly the active board is marked"
    );
}

/// The active board's limb row is drawn in bold; the others are not.
#[test]
fn active_board_limb_is_drawn_bold() {
    use ratatui::Terminal;
    use ratatui::backend::TestBackend;
    let (_tmp, mut app) = make_branchy_app();
    app.nav_display = NavDisplay::Default;
    let backend = TestBackend::new(80, 24);
    let mut terminal = Terminal::new(backend).unwrap();
    terminal
        .draw(|f| crate::app::render(&app, f, f.area()))
        .unwrap();
    let buffer = terminal.backend().buffer();
    // Rows: 0 F1 New Issue, 1 bug, 2 feature, 3 F2 Triage, 4 F3 Board,
    // 5 `default` (active board), 6 `release`. Branch text starts at col 2.
    assert!(
        buffer[(2, 5)].style().add_modifier.contains(Modifier::BOLD),
        "the active board limb is bold: {:?}",
        buffer[(2, 5)].style()
    );
    assert!(
        !buffer[(2, 6)].style().add_modifier.contains(Modifier::BOLD),
        "a non-active board limb is not bold: {:?}",
        buffer[(2, 6)].style()
    );
}

/// Templates, cycles and milestones each become a limb under their trunk,
/// with the action that activates them (acceptance 3).
#[test]
fn template_cycle_and_milestone_limbs_carry_their_actions() {
    let (_tmp, app) = make_branchy_app();
    let templates = app
        .nav_tree()
        .into_iter()
        .find(|node| node.mode == TopMode::NewIssue)
        .expect("the New Issue trunk exists");
    assert_eq!(
        templates
            .branches
            .iter()
            .map(|b| b.action.clone())
            .collect::<Vec<_>>(),
        vec![
            Action::NewFromTemplate("bug".into()),
            Action::NewFromTemplate("feature".into()),
        ]
    );

    let (_tmp, app) = make_cycle_app();
    let cycles = app
        .nav_tree()
        .into_iter()
        .find(|node| node.mode == TopMode::Cycle)
        .expect("the Cycles trunk exists");
    assert_eq!(
        cycles
            .branches
            .iter()
            .map(|b| b.label.as_str())
            .collect::<Vec<_>>(),
        vec!["Historical", "Ongoing", "Later"]
    );

    // A milestone registry file becomes a Milestones limb.
    let planner =
        crate::planning::Planner::from_config(app.store.config.clone(), app.project_root());
    planner
        .create_milestone_file("Backlog", None, None)
        .expect("milestone file is created");
    let milestones = app
        .nav_tree()
        .into_iter()
        .find(|node| node.mode == TopMode::Milestones)
        .expect("the Milestones trunk exists");
    assert_eq!(
        milestones
            .branches
            .iter()
            .map(|b| b.action.clone())
            .collect::<Vec<_>>(),
        vec![Action::SelectMilestone("Backlog".into())]
    );
}

/// The rail draws one indented row per trunk and per limb, and each limb row
/// records its own click target (acceptance 2/3).
#[test]
fn rail_draws_indented_limbs_with_click_regions() {
    let (_tmp, mut app) = make_branchy_app();
    app.nav_display = NavDisplay::Default;
    let cells = draw_board(&app, 80, 24);
    assert!(
        flush_line(&cells, 80, 0).starts_with("F1 New Issue"),
        "the New Issue trunk is the first row: {:?}",
        flush_line(&cells, 80, 0)
    );
    assert!(
        flush_line(&cells, 80, 1).starts_with("  bug"),
        "the first template limb is indented: {:?}",
        flush_line(&cells, 80, 1)
    );
    assert!(flush_line(&cells, 80, 2).starts_with("  feature"));

    // The limb row resolves to its own action, not the trunk's.
    let hovered = app.handle_mouse(moved_to(0, 1)).unwrap();
    assert_eq!(hovered, Action::None, "hover never acts");
    assert!(
        app.is_hovered(&Action::NewFromTemplate("bug".into())),
        "the template row must read as hovered"
    );
    let clicked = app.handle_mouse(down_left(0, 1)).unwrap();
    assert_eq!(clicked, Action::NewFromTemplate("bug".into()));
}

/// `Small` abbreviates each limb row to two characters while trunk rows keep
/// their chord (acceptance 4).
#[test]
fn small_navigation_abbreviates_limb_labels() {
    let (_tmp, mut app) = make_branchy_app();
    app.nav_display = NavDisplay::Small;
    let cells = draw_board(&app, 80, 24);
    let row0 = flush_line(&cells, 80, 0);
    assert!(
        row0.starts_with("F1") && !row0.starts_with("F1 New Issue"),
        "small trunk shows only the chord: {row0:?}"
    );
    assert!(
        flush_line(&cells, 80, 1).starts_with("  bu"),
        "the template limb is abbreviated: {:?}",
        flush_line(&cells, 80, 1)
    );
    assert!(flush_line(&cells, 80, 2).starts_with("  fe"));
}

/// The F5 Milestones mode is the Config surface pinned to the milestones
/// section, focused on the branch's milestone; its registry renders the same
/// rows the Config section draws (task 5).
#[test]
fn milestone_branch_focuses_and_renders_the_registry() {
    let (_tmp, mut app) = make_app();
    let planner =
        crate::planning::Planner::from_config(app.store.config.clone(), app.project_root());
    planner
        .create_milestone_file("Backlog", None, Some("first things first"))
        .unwrap();
    planner.create_milestone_file("Q4", None, None).unwrap();

    app.activate_branch(&Action::SelectMilestone("Q4".into()))
        .unwrap();
    assert!(matches!(app.mode, Mode::Settings));
    assert_eq!(app.top_mode, TopMode::Milestones);
    assert!(app.milestone_mode);
    assert_eq!(
        app.settings.as_ref().map(|s| s.section),
        Some(ConfigSection::Milestones)
    );
    assert_eq!(app.planning.as_ref().map(|m| m.selected), Some(1));

    let cells = draw_board(&app, 80, 24);
    let text = cells.concat();
    assert!(
        text.contains("Backlog") && text.contains("Q4"),
        "both milestones render: {text:?}"
    );
    assert!(
        !text.contains(" Dashboards — "),
        "the Milestones mode draws no section rail"
    );
}

#[test]
fn f4_opens_the_cycle_mode_and_highlights_it() {
    let (_tmp, mut app) = make_cycle_app();
    app.handle_key(press(KeyCode::F(4))).unwrap();
    assert!(matches!(app.mode, Mode::Cycle));
    assert_eq!(
        app.top_mode,
        TopMode::Cycle,
        "the navigation highlights Cycle"
    );
    assert!(app.cycle_state.is_some(), "the mode owns its cursor");
}

#[test]
fn cycle_mode_groups_cycles_chronologically() {
    let (_tmp, mut app) = make_cycle_app();
    app.handle_key(press(KeyCode::F(4))).unwrap();
    let groups = app.cycle_groups();
    let group_of = |name: &str| {
        groups
            .iter()
            .find(|group| group.entries.iter().any(|entry| entry.name == name))
            .map(|group| group.group)
    };
    assert_eq!(
        group_of("Ongoing"),
        Some(crate::ui::cycle::CycleGroup::Current),
        "a start date with no end date is the current cycle"
    );
    assert_eq!(
        group_of("Default"),
        Some(crate::ui::cycle::CycleGroup::Current),
        "the implicit Default cycle is current"
    );
    assert_eq!(
        group_of("Later"),
        Some(crate::ui::cycle::CycleGroup::Future)
    );
    assert_eq!(
        group_of("Historical"),
        Some(crate::ui::cycle::CycleGroup::Archived)
    );
    let order: Vec<&str> = crate::ui::cycle::flat_entries(&groups)
        .into_iter()
        .map(|entry| entry.name.as_str())
        .collect();
    assert_eq!(
        order,
        vec!["Default", "Ongoing", "Later", "Historical"],
        "current first, then future, then archived"
    );
}

#[test]
fn cycle_mode_statistics_are_progress_and_zero_for_an_empty_cycle() {
    let (_tmp, mut app) = make_cycle_app();
    app.handle_key(press(KeyCode::F(4))).unwrap();
    let entries = app.cycle_entries();
    let progress = |name: &str| {
        entries
            .iter()
            .find(|entry| entry.name == name)
            .map(|entry| (entry.progress.done, entry.progress.total))
            .unwrap()
    };
    assert_eq!(progress("Ongoing"), (1, 2), "one of two issues complete");
    assert_eq!(
        progress("Later"),
        (0, 0),
        "an empty cycle renders zeros, not an error"
    );
}

#[test]
fn cycle_mode_renders_group_headings_and_selected_statistics() {
    let (_tmp, mut app) = make_cycle_app();
    app.handle_key(press(KeyCode::F(4))).unwrap();
    // Ordinal 1 is `Ongoing` (Default is ordinal 0), so its stats show.
    app.select_cycle_row(1);
    let text = draw_board(&app, 80, 24).concat();
    assert!(text.contains("Ongoing"), "the cycle row is listed: {text}");
    assert!(
        text.contains("Completed: 1/2"),
        "the selected cycle's progress renders: {text}"
    );
    assert!(text.contains("Current"), "current heading: {text}");
    assert!(text.contains("Future"), "future heading: {text}");
    assert!(text.contains("Archived"), "archived heading: {text}");
}

#[test]
fn cycle_mode_cursor_moves_with_keys() {
    let (_tmp, mut app) = make_cycle_app();
    app.handle_key(press(KeyCode::F(4))).unwrap();
    app.handle_key(press(KeyCode::Char('j'))).unwrap();
    assert_eq!(app.cycle_state.unwrap().selected, 1);
    app.handle_key(press(KeyCode::Char('k'))).unwrap();
    assert_eq!(app.cycle_state.unwrap().selected, 0);
    app.handle_key(press(KeyCode::Esc)).unwrap();
    assert!(matches!(app.mode, Mode::Board), "Esc leaves the mode");
}

#[test]
fn cycle_mode_h_and_l_jump_between_groups_and_clamp() {
    // Flat order: Default, Ongoing | Later | Historical. `l` lands on the
    // first entry of the next rendered group, `h` on the previous one, and
    // neither end wraps.
    let (_tmp, mut app) = make_cycle_app();
    app.handle_key(press(KeyCode::F(4))).unwrap();
    let selected = |app: &App| app.cycle_state.unwrap().selected;
    assert_eq!(selected(&app), 0);

    app.handle_key(press(KeyCode::Char('l'))).unwrap();
    assert_eq!(selected(&app), 2, "`l` jumps to the first Future entry");
    app.handle_key(press(KeyCode::Right)).unwrap();
    assert_eq!(selected(&app), 3, "the arrow jumps to Archived");
    app.handle_key(press(KeyCode::Char('l'))).unwrap();
    assert_eq!(selected(&app), 3, "the last group clamps");

    app.handle_key(press(KeyCode::Char('h'))).unwrap();
    assert_eq!(selected(&app), 2, "`h` jumps back to Future");
    app.handle_key(press(KeyCode::Left)).unwrap();
    assert_eq!(selected(&app), 0, "the arrow jumps back to Current");
    app.handle_key(press(KeyCode::Char('h'))).unwrap();
    assert_eq!(selected(&app), 0, "the first group clamps");
}

#[test]
fn cycle_mode_h_from_inside_a_group_lands_on_its_first_entry() {
    let (_tmp, mut app) = make_cycle_app();
    app.handle_key(press(KeyCode::F(4))).unwrap();
    // Ordinal 1 is `Ongoing`, the second Current entry.
    app.select_cycle_row(1);
    app.handle_key(press(KeyCode::Char('h'))).unwrap();
    assert_eq!(
        app.cycle_state.unwrap().selected,
        0,
        "the previous group is clamped to Current, whose first entry is ordinal 0"
    );
    app.handle_key(press(KeyCode::Char('l'))).unwrap();
    assert_eq!(
        app.cycle_state.unwrap().selected,
        2,
        "and `l` still reaches the next rendered group"
    );
}

#[test]
fn clicking_a_cycle_row_selects_it() {
    let (_tmp, mut app) = make_cycle_app();
    app.handle_key(press(KeyCode::F(4))).unwrap();
    // Draw first: the row rects are recorded by the renderer. The default
    // navigation takes 14 columns, the group heading is row 1, so the
    // second entry (`Ongoing`) is row 3.
    let _ = draw_board(&app, 80, 24);
    let action = app.handle_mouse(down_left(20, 3)).unwrap();
    assert_eq!(
        action,
        Action::CycleSelect(1),
        "a click on the second row maps to the second cycle"
    );
    app.select_cycle_row(1);
    assert_eq!(app.cycle_state.unwrap().selected, 1);
    assert!(matches!(app.mode, Mode::Cycle));
}

#[test]
fn cycle_mode_renders_on_a_tiny_terminal() {
    let (_tmp, mut app) = make_cycle_app();
    app.handle_key(press(KeyCode::F(4))).unwrap();
    for (width, height) in [(20_u16, 5_u16), (1, 1), (80, 3), (15, 24)] {
        let _ = draw_board(&app, width, height);
    }
}

/// The cycle the rail marks active is exactly the focused cycle, and only
/// while the Cycle mode is the top mode; the row is drawn bold.
#[test]
fn active_cycle_limb_is_marked_and_drawn_bold() {
    // Off the Cycle mode nothing is active, even with a cursor present.
    let (_tmp, app) = make_cycle_app();
    assert_eq!(app.active_cycle_name(), None);
    let cycle_node = |app: &App| {
        app.nav_tree()
            .into_iter()
            .find(|node| node.mode == TopMode::Cycle)
            .expect("the Cycles trunk exists")
    };
    assert!(
        cycle_node(&app)
            .branches
            .iter()
            .all(|branch| !branch.active)
    );

    let (_tmp, mut app) = make_cycle_app();
    app.activate_branch(&Action::SelectCycle("Ongoing".into()))
        .unwrap();
    assert_eq!(app.active_cycle_name().as_deref(), Some("Ongoing"));
    let marked: Vec<String> = cycle_node(&app)
        .branches
        .iter()
        .filter(|branch| branch.active)
        .map(|branch| branch.label.clone())
        .collect();
    assert_eq!(marked, vec!["Ongoing".to_string()]);

    let cells = draw_board(&app, 80, 24);
    let row_of = |prefix: &str| {
        (0..24u16)
            .find(|row| flush_line(&cells, 80, *row).starts_with(prefix))
            .unwrap_or_else(|| panic!("no rail row starts with {prefix:?}"))
    };
    let ongoing = row_of("  Ongoing");
    let later = row_of("  Later");
    let buffer = draw_buffer(&app, 80, 24);
    assert!(
        buffer[(2, ongoing)]
            .style()
            .add_modifier
            .contains(Modifier::BOLD),
        "the focused cycle limb is bold"
    );
    assert!(
        !buffer[(2, later)]
            .style()
            .add_modifier
            .contains(Modifier::BOLD),
        "a non-focused cycle limb is not bold"
    );
}

/// The milestone the rail marks active is the focused one, only in the
/// Milestones mode, and the row is drawn bold.
#[test]
fn active_milestone_limb_is_marked_and_drawn_bold() {
    let (_tmp, mut app) = make_app();
    let planner =
        crate::planning::Planner::from_config(app.store.config.clone(), app.project_root());
    planner
        .create_milestone_file("Backlog", None, None)
        .unwrap();
    planner.create_milestone_file("Q4", None, None).unwrap();

    // Config's milestones section shares the cursor but is not the F5 mode.
    app.open_settings(None);
    app.config_set_section(ConfigSection::Milestones);
    assert_eq!(app.active_milestone_name(), None);

    app.switch_top_mode(TopMode::Milestones).unwrap();
    assert_eq!(app.active_milestone_name().as_deref(), Some("Backlog"));
    let milestone_node = |app: &App| {
        app.nav_tree()
            .into_iter()
            .find(|node| node.mode == TopMode::Milestones)
            .expect("the Milestones trunk exists")
    };
    let marked: Vec<String> = milestone_node(&app)
        .branches
        .iter()
        .filter(|branch| branch.active)
        .map(|branch| branch.label.clone())
        .collect();
    assert_eq!(marked, vec!["Backlog".to_string()]);

    let cells = draw_board(&app, 80, 24);
    let row_of = |prefix: &str| {
        (0..24u16)
            .find(|row| flush_line(&cells, 80, *row).starts_with(prefix))
            .unwrap_or_else(|| panic!("no rail row starts with {prefix:?}"))
    };
    let backlog = row_of("  Backlog");
    let q4 = row_of("  Q4");
    let buffer = draw_buffer(&app, 80, 24);
    assert!(
        buffer[(2, backlog)]
            .style()
            .add_modifier
            .contains(Modifier::BOLD),
        "the focused milestone limb is bold"
    );
    assert!(
        !buffer[(2, q4)]
            .style()
            .add_modifier
            .contains(Modifier::BOLD),
        "a non-focused milestone limb is not bold"
    );

    // Moving the cursor moves the bold row with it.
    app.handle_key(press(KeyCode::Down)).unwrap();
    assert_eq!(app.active_milestone_name().as_deref(), Some("Q4"));
}

/// The Cycle mode's flat table lists exactly the focused cycle's issues
/// (and no others), each row a click target that opens the issue.
#[test]
fn cycle_mode_lists_the_focused_cycles_issues_and_opens_them() {
    let (_tmp, mut app) = make_cycle_app();
    app.activate_branch(&Action::SelectCycle("Historical".into()))
        .unwrap();
    let _ = draw_board(&app, 100, 30);
    assert_eq!(open_issue_regions(&app), vec!["alice/2026-01-03-old.md"]);

    // A cycle with no issues says so rather than drawing an empty box: the
    // fixture's `Later` cycle has none.
    let (_tmp, mut app) = make_cycle_app();
    app.activate_branch(&Action::SelectCycle("Later".into()))
        .unwrap();
    let cells = draw_board(&app, 100, 30);
    assert_eq!(open_issue_regions(&app), [] as [std::string::String; 0]);
    assert!(
        cells.concat().contains("No issues."),
        "an empty cycle says so"
    );

    let (_tmp, mut app) = make_cycle_app();
    app.activate_branch(&Action::SelectCycle("Ongoing".into()))
        .unwrap();
    let cells = draw_board(&app, 100, 30);
    assert_eq!(
        open_issue_regions(&app),
        vec![
            "alice/2026-01-01-done.md".to_string(),
            "alice/2026-01-02-open.md".to_string(),
        ],
        "exactly the Ongoing issues, and not Historical's"
    );
    let text = cells.concat();
    assert!(
        text.contains("issues — Ongoing"),
        "the table is titled: {text:?}"
    );
    assert!(text.contains("Issue 1") && text.contains("Issue 2"));
    assert!(
        !text.contains("Issue 3"),
        "another cycle's issue is not listed"
    );

    // A row is a click region resolving to its `OpenIssue`, hovers, and opens.
    let (region, filename) = {
        let regions = app.frame_hit_regions.borrow();
        let region = regions
            .iter()
            .find(|region| region.action == Action::OpenIssue("alice/2026-01-02-open.md".into()))
            .expect("the open issue recorded a click region");
        (region.rect, "alice/2026-01-02-open.md".to_string())
    };
    let _ = app.handle_mouse(moved_to(region.x + 1, region.y)).unwrap();
    assert!(
        app.is_hovered(&Action::OpenIssue(filename.clone())),
        "the hovered table row reads as hovered"
    );

    let action = app.handle_mouse(down_left(region.x + 1, region.y)).unwrap();
    assert_eq!(action, Action::OpenIssue(filename.clone()));
    app.open_issue_by_filename(&filename).unwrap();
    assert!(matches!(app.mode, Mode::Detail), "the row opens the issue");
    assert_eq!(app.detail.as_ref().unwrap().issue.number, 2);
}

/// The Milestones mode reuses the same table for the focused milestone.
#[test]
fn milestones_mode_lists_the_focused_milestones_issues_and_opens_them() {
    let (tmp, mut app) = make_app();
    let planner =
        crate::planning::Planner::from_config(app.store.config.clone(), app.project_root());
    planner
        .create_milestone_file("Backlog", None, None)
        .unwrap();
    planner.create_milestone_file("Q4", None, None).unwrap();
    let dir = tmp.path().join("issues");
    write_planning_issue(
        &dir,
        "2026-01-01-backlog.md",
        1,
        "Backlog work",
        "todo",
        &[],
        &["Backlog"],
    );
    write_planning_issue(&dir, "2026-01-02-q4.md", 2, "Q4 work", "todo", &[], &["Q4"]);
    app.handle_key(press(KeyCode::F(5))).unwrap();

    let cells = draw_board(&app, 100, 30);
    assert_eq!(open_issue_regions(&app), vec!["2026-01-01-backlog.md"]);
    let text = cells.concat();
    assert!(
        text.contains("issues — Backlog"),
        "the table is titled: {text:?}"
    );
    assert!(text.contains("Backlog work") && !text.contains("Q4 work"));

    // Moving to the next milestone re-points the table.
    app.handle_key(press(KeyCode::Down)).unwrap();
    let _ = draw_board(&app, 100, 30);
    assert_eq!(open_issue_regions(&app), vec!["2026-01-02-q4.md"]);

    let (region, filename) = {
        let regions = app.frame_hit_regions.borrow();
        let region = regions
            .iter()
            .find(|region| region.action == Action::OpenIssue("2026-01-02-q4.md".into()))
            .expect("the Q4 issue recorded a click region");
        (region.rect, "2026-01-02-q4.md".to_string())
    };
    let _ = app.handle_mouse(moved_to(region.x + 1, region.y)).unwrap();
    assert!(app.is_hovered(&Action::OpenIssue(filename.clone())));

    let action = app.handle_mouse(down_left(region.x + 1, region.y)).unwrap();
    assert_eq!(action, Action::OpenIssue(filename.clone()));
    app.open_issue_by_filename(&filename).unwrap();
    assert!(matches!(app.mode, Mode::Detail));
    assert_eq!(app.detail.as_ref().unwrap().issue.number, 2);
}

/// The rail is reachable and operable by keyboard: `h`/`Left` focus it when
/// the mode has no leftward target, `j`/`k` walk trunk and limb rows, and
/// `Enter` activates the focused row.
#[test]
fn rail_focus_walks_rows_and_activates_trunks_and_limbs() {
    let (_tmp, mut app) = make_branchy_app();
    let rows = app.nav_rows();
    let board_trunk = rows
        .iter()
        .position(|action| *action == Action::SwitchMode(TopMode::Board))
        .expect("the Board trunk is a rail row");

    // The board starts at its left edge, so `h` has no leftward target and
    // enters the rail on the Board trunk.
    let _ = app.handle_key(press(KeyCode::Char('h'))).unwrap();
    assert_eq!(app.nav_focus_index(), Some(board_trunk));

    // `j`/`k` walk trunk and limb rows.
    let _ = app.handle_key(press(KeyCode::Char('j'))).unwrap();
    assert_eq!(app.nav_focus_index(), Some(board_trunk + 1));
    assert_eq!(
        app.nav_rows()[board_trunk + 1],
        Action::SelectBoard("default".into())
    );
    let _ = app.handle_key(press(KeyCode::Up)).unwrap();
    assert_eq!(app.nav_focus_index(), Some(board_trunk));

    // Enter on a limb runs the limb's action (switch to `release`) and hands
    // the keyboard to the opened content.
    let _ = app.handle_key(press(KeyCode::Char('j'))).unwrap();
    let _ = app.handle_key(press(KeyCode::Char('j'))).unwrap();
    assert_eq!(
        app.nav_rows()[board_trunk + 2],
        Action::SelectBoard("release".into())
    );
    let _ = app.handle_key(press(KeyCode::Enter)).unwrap();
    assert_eq!(app.active_board_name(), "release");
    assert_eq!(app.top_mode, TopMode::Board);
    assert_eq!(
        app.nav_focus_index(),
        None,
        "Enter opens the row and moves the keyboard right"
    );
}

/// Every rail row — trunk and limb — highlights under the pointer.
#[test]
fn hovering_a_trunk_and_a_limb_row_highlights_each() {
    let (_tmp, mut app) = make_branchy_app();
    app.nav_display = NavDisplay::Default;
    let _ = draw_board(&app, 80, 24);

    // Row 0 is the New Issue trunk.
    let _ = app.handle_mouse(moved_to(0, 0)).unwrap();
    assert!(app.is_hovered(&Action::SwitchMode(TopMode::NewIssue)));
    let buffer = draw_buffer(&app, 80, 24);
    assert_eq!(
        buffer[(0, 0)].style().bg,
        Some(Color::DarkGray),
        "the hovered trunk is highlighted"
    );

    // Row 1 is the `bug` template limb.
    let _ = app.handle_mouse(moved_to(2, 1)).unwrap();
    assert!(app.is_hovered(&Action::NewFromTemplate("bug".into())));
    let buffer = draw_buffer(&app, 80, 24);
    assert_eq!(
        buffer[(2, 1)].style().bg,
        Some(Color::DarkGray),
        "the hovered limb is highlighted"
    );
}