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Expose SvgCanvas.matrixMultiply() and add starting unit-test framework (QUnit) and first test.

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git-svn-id: http://svg-edit.googlecode.com/svn/trunk@1236 eee81c28-f429-11dd-99c0-75d572ba1ddd
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Jeff Schiller
2010-01-18 06:40:32 +00:00
parent e730f71947
commit d1e32d99d7
4 changed files with 1252 additions and 17 deletions
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<html>
<head>
<link rel="stylesheet" href="qunit/qunit.css" type="text/css"/>
<script src="../editor/jquery.js"> </script>
<script type="text/javascript" src="../editor/svgicons/jquery.svgicons.js"></script>
<script type="text/javascript" src="../editor/locale/locale.js"></script>
<script type="text/javascript" src="../editor/svgcanvas.js"></script>
<script type="text/javascript" src="qunit/qunit.js"></script>
<script type="text/javascript">
$(function() {
// log function
QUnit.log = function(result, message) {
if (window.console && window.console.log) {
window.console.log(result +' :: '+ message);
}
};
// helper functions
var isIdentity = function(m) {
return (m.a == 1 && m.b == 0 && m.c == 0 && m.d == 1 && m.e == 0 && m.f == 0);
};
var matrixString = function(m) {
return [m.a,m.b,m.c,m.d,m.e,m.f].join(',');
}
var svgCanvas = new SvgCanvas(document.getElementById("svgcanvas")),
svgroot = document.getElementById("svgroot"),
svgdoc = svgroot.documentElement;
module("Basic Module");
test("Test existence of SvgCanvas object", function() {
expect(1);
equals(typeof {}, typeof svgCanvas);
});
module("Transform Module");
test("Test matrixMultiply", function() {
expect(4);
// translate there and back
var tr_1 = svgroot.createSVGMatrix().translate(100,50),
tr_2 = svgroot.createSVGMatrix().translate(-90,0),
tr_3 = svgroot.createSVGMatrix().translate(-10,-50),
I = svgCanvas.matrixMultiply(tr_1,tr_2,tr_3);
equals(true, isIdentity(I),
"Expected identity matrix when translating there and back, got " + matrixString(I));
// rotate there and back
var rot_there = svgroot.createSVGMatrix().rotate(90),
rot_back = svgroot.createSVGMatrix().rotate(-90);
I = svgCanvas.matrixMultiply(rot_there, rot_back);
equals(true, isIdentity(I),
"Expected identity matrix when rotating there and back, got " + matrixString(I));
// test multiplication with its inverse
I = svgCanvas.matrixMultiply(rot_there, rot_there.inverse());
equals(true, isIdentity(I),
"Expected identity matrix when multiplying a matrix by its inverse, got " + matrixString(I));
I = svgCanvas.matrixMultiply(rot_there.inverse(), rot_there);
equals(true, isIdentity(I),
"Expected identity matrix when multiplying a matrix by its inverse, got " + matrixString(I));
});
});
</script>
</head>
<body>
<h1 id="qunit-header">Unit Tests for SvgCanvas</h1>
<h2 id="qunit-banner"></h2>
<h2 id="qunit-userAgent"></h2>
<ol id="qunit-tests">
</ol>
<div id="svgcanvas" style="display:none"></div>
</body>
</html>