text: suite('Blob', function() {
    // ======================================================
    test('add blob', function() {
      var stage = addStage();
      var layer = new Konva.Layer();
  
      var blob = new Konva.Line({
        points: [73, 140, 340, 23, 500, 109, 300, 170],
        stroke: 'blue',
        strokeWidth: 10,
        draggable: true,
        fill: '#aaf',
        tension: 0.8,
        closed: true
      });
  
      layer.add(blob);
      stage.add(layer);
  
      assert.equal(blob.getTension(), 0.8);
  
      assert.equal(blob.getClassName(), 'Line');
  
      //console.log(blob1.getPoints())
  
      // test setter
      blob.setTension(1.5);
      assert.equal(blob.getTension(), 1.5);
  
      var trace = layer.getContext().getTrace();
      assert.equal(
        trace,
        'clearRect(0,0,578,200);save();transform(1,0,0,1,0,0);beginPath();moveTo(73,140);bezierCurveTo(90.922,74.135,129.542,38.279,340,23);bezierCurveTo(471.142,13.479,514.876,54.33,500,109);bezierCurveTo(482.876,171.93,463.05,158.163,300,170);bezierCurveTo(121.45,182.963,58.922,191.735,73,140);closePath();fillStyle=#aaf;fill();lineWidth=10;strokeStyle=blue;stroke();restore();'
      );
    });
  
    // ======================================================
    test('define tension first', function() {
      var stage = addStage();
      var layer = new Konva.Layer();
  
      var blob = new Konva.Line({
        tension: 0.8,
        points: [73, 140, 340, 23, 500, 109, 300, 170],
        stroke: 'blue',
        strokeWidth: 10,
        draggable: true,
        fill: '#aaf',
        closed: true
      });
  
      layer.add(blob);
      stage.add(layer);
  
      assert.equal(stage.find('Line')[0].getPoints().length, 8);
    });
  
    // ======================================================
    test('check for konva event handlers', function() {
      var stage = addStage();
      var layer = new Konva.Layer();
  
      var blob = new Konva.Line({
        points: [73, 140, 340, 23, 500, 109, 300, 170],
        stroke: 'blue',
        strokeWidth: 10,
        draggable: true,
        fill: '#aaf',
        tension: 0.8,
        closed: true
      });
  
      layer.add(blob);
  
      stage.add(layer);
  
      assert.equal(blob.eventListeners.pointsChange[0].name, 'konva');
      assert.equal(blob.eventListeners.tensionChange[0].name, 'konva');
  
      // removing handlers should not remove konva specific handlers
      blob.off('pointsChange');
      blob.off('tensionChange');
  
      assert.equal(blob.eventListeners.pointsChange[0].name, 'konva');
      assert.equal(blob.eventListeners.tensionChange[0].name, 'konva');
  
      // you can force remove an event by adding the name
      blob.off('pointsChange.konva');
      blob.off('tensionChange.konva');
  
      assert.equal(blob.eventListeners.pointsChange, undefined);
      assert.equal(blob.eventListeners.tensionChange, undefined);
    });
  
    test('cache', function() {
      var stage = addStage();
      var layer = new Konva.Layer();
      var blob = new Konva.Line({
        x: 50,
        y: 50,
        points: [-25, 50, 250, -30, 150, 50, 250, 110],
        stroke: 'black',
        strokeWidth: 10,
        draggable: true,
        fill: '#aaf',
        tension: 0.3,
        closed: true
      });
  
      blob.cache();
      layer.add(blob);
      stage.add(layer);
  
      cloneAndCompareLayer(layer, 150);
    });
  });
  