dartamp/test/dock_controller_test.dart

import "dart:ui";

import "package:dartamp/src/docking/dock_controller.dart";
import "package:dartamp/src/docking/dock_logic.dart";
import "package:flutter_test/flutter_test.dart";

const screen = Rect.fromLTWH(0, 0, 1440, 900);

void main() {
  late List<(DockWindow, Rect)> moved;
  late Map<DockWindow, Rect>? persisted;
  late DockController dock;

  setUp(() {
    moved = [];
    persisted = null;
    dock = DockController(
      moveWindow: (window, rect) => moved.add((window, rect)),
      persistRects: (rects) => persisted = rects,
    )..screenRect = screen;
  });

  test("setRect and removeWindow maintain the rect map", () {
    dock.setRect(DockWindow.eq, const Rect.fromLTWH(275, 0, 275, 116));
    expect(dock.rectOf(DockWindow.eq)!.topLeft, const Offset(275, 0));
    expect(dock.rects.length, 1);
    dock.removeWindow(DockWindow.eq);
    expect(dock.rectOf(DockWindow.eq), isNull);
  });

  test("a main-window drag moves the attached group by the same delta", () {
    dock.setRect(DockWindow.main, const Rect.fromLTWH(500, 300, 275, 116));
    dock.setRect(DockWindow.eq, const Rect.fromLTWH(775, 300, 275, 116));
    dock.beginMainDrag(const Offset(600, 340));
    dock.mainDragTo(const Offset(700, 420));
    dock.endMainDrag();
    final mainRect = dock.rectOf(DockWindow.main)!;
    final eqRect = dock.rectOf(DockWindow.eq)!;
    expect(mainRect.topLeft, const Offset(600, 380));
    expect(eqRect.topLeft, const Offset(875, 380));
    expect(moved, contains((DockWindow.main, mainRect)));
    expect(moved, contains((DockWindow.eq, eqRect)));
    expect(persisted, isNotNull);
  });

  test("movement tracks the cumulative pointer delta", () {
    dock.setRect(DockWindow.main, const Rect.fromLTWH(500, 300, 275, 116));
    dock.setRect(DockWindow.eq, const Rect.fromLTWH(775, 300, 275, 116));
    dock.beginMainDrag(const Offset(600, 340));
    dock.mainDragTo(const Offset(700, 420));
    dock.mainDragTo(const Offset(800, 500));
    expect(dock.rectOf(DockWindow.main)!.topLeft, const Offset(700, 460));
    expect(dock.rectOf(DockWindow.eq)!.topLeft, const Offset(975, 460));
  });

  test("dragging to a screen corner snaps the whole group", () {
    dock.setRect(DockWindow.main, const Rect.fromLTWH(10, 10, 275, 116));
    dock.setRect(DockWindow.eq, const Rect.fromLTWH(285, 10, 275, 116));
    dock.beginMainDrag(const Offset(100, 100));
    dock.mainDragTo(const Offset(95, 95));
    expect(dock.rectOf(DockWindow.main)!.topLeft, Offset.zero);
    expect(dock.rectOf(DockWindow.eq)!.topLeft, const Offset(275, 0));
  });

  test("an unattached window stays put while the group moves", () {
    dock.setRect(DockWindow.main, const Rect.fromLTWH(500, 300, 275, 116));
    dock.setRect(DockWindow.eq, const Rect.fromLTWH(800, 500, 275, 116));
    dock.beginMainDrag(const Offset(600, 340));
    dock.mainDragTo(const Offset(650, 400));
    expect(dock.rectOf(DockWindow.main)!.topLeft, const Offset(550, 360));
    expect(dock.rectOf(DockWindow.eq)!.topLeft, const Offset(800, 500));
  });

  test("a sub-window resizing re-pins windows docked to its new edge", () {
    dock.setRect(DockWindow.main, const Rect.fromLTWH(0, 0, 275, 116));
    dock.setRect(DockWindow.eq, const Rect.fromLTWH(275, 0, 275, 116));
    dock.setRect(DockWindow.pl, const Rect.fromLTWH(0, 116, 280, 290));
    dock.repinResized(DockWindow.main, const Rect.fromLTWH(0, 0, 330, 139.2));
    expect(dock.rectOf(DockWindow.eq)!.topLeft, const Offset(330, 0));
    expect(dock.rectOf(DockWindow.pl)!.topLeft, const Offset(0, 139.2));
  });

  test("subBounds re-pins the chain docked below the resized window", () {
    dock.setRect(DockWindow.main, const Rect.fromLTWH(0, 0, 275, 116));
    dock.setRect(DockWindow.pl, const Rect.fromLTWH(0, 116, 280, 290));
    dock.setRect(DockWindow.eq, const Rect.fromLTWH(0, 406, 275, 116));
    dock.subBounds(DockWindow.pl, const Rect.fromLTWH(0, 116, 280, 14));
    expect(dock.rectOf(DockWindow.eq)!.topLeft, const Offset(0, 130));
  });

  test("repinResized keeps everything pinned when the edge does not move", () {
    dock.setRect(DockWindow.main, const Rect.fromLTWH(0, 0, 275, 116));
    dock.setRect(DockWindow.eq, const Rect.fromLTWH(275, 0, 275, 116));
    dock.repinResized(DockWindow.main, const Rect.fromLTWH(0, 0, 275, 14));
    expect(dock.rectOf(DockWindow.eq)!.topLeft, const Offset(275, 0));
  });

  test("scaledSize accounts for shade state and UI scale", () {
    expect(
      DockController.scaledSize(DockWindow.main, false, 1.0),
      const Size(275, 116),
    );
    expect(
      DockController.scaledSize(DockWindow.eq, true, 1.0),
      const Size(275, 14),
    );
    expect(
      DockController.scaledSize(DockWindow.pl, false, 1.2),
      const Size(336, 348),
    );
  });
}