setup prettier and make all code better

test/unit/Canvas-test.js

@@ -1,41 +1,42 @@
 suite('Canvas', function() {
-    // ======================================================
-    test('pixel ratio', function() {
-        var stage = addStage();
+  // ======================================================
+  test('pixel ratio', function() {
+    var stage = addStage();
 
-        var layer = new Konva.Layer();
-
-        var circle = new Konva.Circle({
-            x: 100,
-            y: 70,
-            radius: 70,
-            fill: 'green',
-            stroke: 'blue',
-            strokeWidth: 4,
-            draggable : true
-        });
-
-        layer.add(circle);
-        stage.add(layer);
-
-
-        stage.setWidth(578/2);
-        stage.setHeight(100);
-
-        stage.draw();
-        assert.equal(layer.getCanvas().getPixelRatio(), Konva.pixelRatio || window.devicePixelRatio || 1);
-
-        layer.getCanvas().setPixelRatio(1);
-        assert.equal(layer.getCanvas().getPixelRatio(), 1);
-        assert.equal(layer.getCanvas().width, 289);
-        assert.equal(layer.getCanvas().height, 100);
-
-        layer.getCanvas().setPixelRatio(2);
-        assert.equal(layer.getCanvas().getPixelRatio(), 2);
-        assert.equal(layer.getCanvas().width, 578);
-        assert.equal(layer.getCanvas().height, 200);
-
-        layer.draw();
+    var layer = new Konva.Layer();
 
+    var circle = new Konva.Circle({
+      x: 100,
+      y: 70,
+      radius: 70,
+      fill: 'green',
+      stroke: 'blue',
+      strokeWidth: 4,
+      draggable: true
     });
+
+    layer.add(circle);
+    stage.add(layer);
+
+    stage.setWidth(578 / 2);
+    stage.setHeight(100);
+
+    stage.draw();
+    assert.equal(
+      layer.getCanvas().getPixelRatio(),
+      Konva.pixelRatio || window.devicePixelRatio || 1
+    );
+
+    layer.getCanvas().setPixelRatio(1);
+    assert.equal(layer.getCanvas().getPixelRatio(), 1);
+    assert.equal(layer.getCanvas().width, 289);
+    assert.equal(layer.getCanvas().height, 100);
+
+    layer.getCanvas().setPixelRatio(2);
+    assert.equal(layer.getCanvas().getPixelRatio(), 2);
+    assert.equal(layer.getCanvas().width, 578);
+    assert.equal(layer.getCanvas().height, 200);
+
+    layer.draw();
+  });
 });