| <!DOCTYPE html> |
| <html> |
| <!-- |
| Copyright 2010 The Closure Library Authors. All Rights Reserved. |
| |
| Use of this source code is governed by the Apache License, Version 2.0. |
| See the COPYING file for details. |
| |
| Author: nicksantos@google.com (Nick Santos) |
| --> |
| <head> |
| <meta http-equiv="X-UA-Compatible" content="IE=edge"> |
| <title>JsUnit tests for goog.graphics.paths</title> |
| <script src="../base.js"></script> |
| <script> |
| |
| goog.require('goog.dom'); |
| goog.require('goog.graphics'); |
| goog.require('goog.graphics.paths'); |
| goog.require('goog.testing.jsunit'); |
| |
| |
| </script> |
| </head> |
| <body> |
| |
| <div id="root"></div> |
| |
| <script type='text/javascript'> |
| |
| // The purpose of this test is less about the actual unit test, and |
| // more for drawing demos of shapes. |
| var regularNGon = goog.graphics.paths.createRegularNGon; |
| var arrow = goog.graphics.paths.createArrow; |
| |
| function setUp() { |
| goog.dom.removeChildren(goog.dom.getElement('root')); |
| } |
| |
| function testSquare() { |
| var square = regularNGon( |
| $coord(10, 10), $coord(0, 10), 4); |
| assertArrayRoughlyEquals( |
| [0, 10, 10, 0, 20, 10, 10, 20], square.arguments_, 0.05); |
| } |
| |
| function assertArrayRoughlyEquals(expected, actual, delta) { |
| var message = 'Expected: ' + expected + ', Actual: ' + actual; |
| assertEquals('Wrong length. ' + message, expected.length, actual.length); |
| for (var i = 0; i < expected.length; i++) { |
| assertRoughlyEquals( |
| 'Wrong item at ' + i + '. ' + message, |
| expected[i], actual[i], delta); |
| } |
| } |
| |
| function tearDownPage() { |
| var root = goog.dom.getElement('root'); |
| var graphics = goog.graphics.createGraphics(800, 600); |
| |
| var blueFill = new goog.graphics.SolidFill('blue'); |
| var blackStroke = new goog.graphics.Stroke(1, 'black'); |
| graphics.drawPath( |
| regularNGon($coord(20, 50), $coord(0, 20), 3), |
| blackStroke, blueFill); |
| graphics.drawPath( |
| regularNGon($coord(120, 50), $coord(100, 20), 4), |
| blackStroke, blueFill); |
| graphics.drawPath( |
| regularNGon($coord(220, 50), $coord(200, 20), 5), |
| blackStroke, blueFill); |
| graphics.drawPath( |
| regularNGon($coord(320, 50), $coord(300, 20), 6), |
| blackStroke, blueFill); |
| |
| graphics.drawPath( |
| arrow($coord(0, 300), $coord(100, 400), 0, 0), |
| blackStroke, blueFill); |
| graphics.drawPath( |
| arrow($coord(120, 400), $coord(200, 300), 0, 10), |
| blackStroke, blueFill); |
| graphics.drawPath( |
| arrow($coord(220, 300), $coord(300, 400), 10, 0), |
| blackStroke, blueFill); |
| graphics.drawPath( |
| arrow($coord(320, 400), $coord(400, 300), 10, 10), |
| blackStroke, blueFill); |
| |
| root.appendChild(graphics.getElement()); |
| } |
| |
| function $coord(x, y) { |
| return new goog.math.Coordinate(x, y); |
| } |
| |
| </script> |
| </body> |
| </html> |
