starting canvas module

test/view/canvas.test.js

@@ -0,0 +1,32 @@
+let assert = require('assert')
+let Canvas = require('../../app/view/canvas')
+
+describe('Canvas', function () {
+
+  it('should draw only Image objects', function () {
+    let canvas = new Canvas()
+    let image = new window.Image()
+
+    assert.throws(canvas.draw, 'Invalid image')
+    assert.throws(canvas.draw.bind(canvas, image, true), 'Invalid image')
+    assert.doesNotThrow(canvas.draw.bind(canvas, image, true, image), 'Invalid image')
+  })
+
+  it('should draw a single page')
+
+  it('should draw a double page')
+
+  it('should draw a manga double page')
+
+  it('should draw a single double page spread')
+
+  it('should show a blank last page if the last double page only has one image')
+
+  it('should auto-fit to window width')
+
+  it('should auto-fit to window height')
+
+  it('should manual zoom')
+
+  it('should always center pages')
+})