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