<!DOCTYPE html>
<!-- DO NOT EDIT! This test has been generated by tools/gentest.py. -->
<title>Canvas test: 2d.pattern.basic.zerocanvas</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/canvas-tests.js"></script>
<link rel="stylesheet" href="/common/canvas-tests.css">
<body class="show_output">

<h1>2d.pattern.basic.zerocanvas</h1>
<p class="desc"></p>


<p class="output">Actual output:</p>
<canvas id="c" class="output" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>

<ul id="d"></ul>
<script>
var t = async_test("");
_addTest(function(canvas, ctx) {

canvas.width = 0;
canvas.height = 10;
_assertSame(canvas.width, 0, "canvas.width", "0");
_assertSame(canvas.height, 10, "canvas.height", "10");
assert_throws("INVALID_STATE_ERR", function() { ctx.createPattern(canvas, 'repeat'); });

canvas.width = 10;
canvas.height = 0;
_assertSame(canvas.width, 10, "canvas.width", "10");
_assertSame(canvas.height, 0, "canvas.height", "0");
assert_throws("INVALID_STATE_ERR", function() { ctx.createPattern(canvas, 'repeat'); });

canvas.width = 0;
canvas.height = 0;
_assertSame(canvas.width, 0, "canvas.width", "0");
_assertSame(canvas.height, 0, "canvas.height", "0");
assert_throws("INVALID_STATE_ERR", function() { ctx.createPattern(canvas, 'repeat'); });


});
</script>