Add FramesheetRenderer unit test

test/js/rendering/FramesheetRendererTest.js

@@ -0,0 +1,72 @@
+describe("Framesheet Renderer test", function() {
+  var B = '#000000';
+  var W = '#ffffff';
+  var T = Constants.TRANSPARENT_COLOR;
+
+  var toFrameGrid = test.testutils.toFrameGrid;
+  var frameEqualsGrid = test.testutils.frameEqualsGrid;
+
+  beforeEach(function() {});
+  afterEach(function() {});
+
+  var toFrame = function (array) {
+    return pskl.model.Frame.fromPixelGrid(toFrameGrid(array));
+  };
+
+  it("draws frames side by side by default", function() {
+    // create frames
+    var f1 = toFrame([[B, T],
+                      [B, W]]);
+    var f2 = toFrame([[W, B],
+                      [T, B]]);
+
+    var renderer = new pskl.rendering.FramesheetRenderer([f1, f2]);
+    var canvas = renderer.renderAsCanvas();
+    frameEqualsGrid(pskl.utils.FrameUtils.createFromImage(canvas), [
+      [B, T, W, B],
+      [B, W, T, B]
+    ]);
+  });
+
+  it("renderAsCanvas accepts columns argument", function() {
+    // create frames
+    var f1 = toFrame([[B, B]]);
+    var f2 = toFrame([[W, W]]);
+    var f3 = toFrame([[T, W]]);
+    var f4 = toFrame([[B, W]]);
+    var frames = [f1, f2, f3, f4];
+
+    // columns = 4
+    var renderer = new pskl.rendering.FramesheetRenderer(frames);
+    var canvas = renderer.renderAsCanvas(4);
+    frameEqualsGrid(pskl.utils.FrameUtils.createFromImage(canvas), [
+      [B, B, W, W, T, W, B, W]
+    ]);
+
+    // columns = 3
+    renderer = new pskl.rendering.FramesheetRenderer(frames);
+    canvas = renderer.renderAsCanvas(3);
+    frameEqualsGrid(pskl.utils.FrameUtils.createFromImage(canvas), [
+      [B, B, W, W, T, W],
+      [B, W, T, T, T, T]
+    ]);
+
+    // columns = 2
+    renderer = new pskl.rendering.FramesheetRenderer(frames);
+    canvas = renderer.renderAsCanvas(2);
+    frameEqualsGrid(pskl.utils.FrameUtils.createFromImage(canvas), [
+      [B, B, W, W],
+      [T, W, B, W]
+    ]);
+
+    // columns = 1
+    renderer = new pskl.rendering.FramesheetRenderer(frames);
+    canvas = renderer.renderAsCanvas(1);
+    frameEqualsGrid(pskl.utils.FrameUtils.createFromImage(canvas), [
+      [B, B],
+      [W, W],
+      [T, W],
+      [B, W]
+    ]);
+  });
+});