konva/test/unit/shapes/Ring-test.js

suite('Ring', function() {
  // ======================================================
  test('add ring', function() {
    var stage = addStage();
    var layer = new Konva.Layer();
    var ring = new Konva.Ring({
      x: stage.getWidth() / 2,
      y: stage.getHeight() / 2,
      innerRadius: 50,
      outerRadius: 90,
      fill: 'green',
      stroke: 'black',
      strokeWidth: 4,
      draggable: true
    });
    layer.add(ring);
    stage.add(layer);
    assert.equal(ring.getClassName(), 'Ring');

    var trace = layer.getContext().getTrace();
    assert.equal(
      trace,
      'clearRect(0,0,578,200);save();transform(1,0,0,1,289,100);beginPath();arc(0,0,50,0,6.283,false);moveTo(90,0);arc(0,0,90,6.283,0,true);closePath();fillStyle=green;fill();lineWidth=4;strokeStyle=black;stroke();restore();'
    );
  });

  // ======================================================
  test('ring attrs sync', function() {
    var stage = addStage();
    var layer = new Konva.Layer();
    var ring = new Konva.Ring({
      name: 'ring',
      x: 30,
      y: 50,
      innerRadius: 15,
      outerRadius: 30,
      fill: 'green',
      stroke: 'black',
      strokeWidth: 4,
      draggable: true
    });
    layer.add(ring);
    stage.add(layer);

    assert(ring.width(), 60);
    assert(ring.height(), 60);

    ring.height(100);
    assert(ring.width(), 100);
    assert(ring.outerRadius(), 50);

    ring.width(120);
    assert(ring.height(), 120);
    assert(ring.outerRadius(), 60);
  });

  test('ring cache', function() {
    var stage = addStage();
    var layer = new Konva.Layer();
    var ring = new Konva.Ring({
      name: 'ring',
      x: 30,
      y: 50,
      innerRadius: 15,
      outerRadius: 30,
      fill: 'green',
      stroke: 'black',
      strokeWidth: 4,
      draggable: true
    });

    layer.add(ring);
    stage.add(layer);

    assert.deepEqual(ring.getSelfRect(), {
      x: -30,
      y: -30,
      width: 60,
      height: 60
    });

    var layer2 = layer.clone();
    stage.add(layer2);
    layer2.hide();

    compareLayers(layer, layer2);
  });
});