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Test for Bug 796179 - Errors in files with large data URIs can cause the error console to consume gigabytes of memory and lock up the browser. r=rcampbell

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This commit is contained in:
Seth Fowler 2012-11-12 11:50:09 -08:00
parent 5b194fdb85
commit 212640dfa6
3 changed files with 84 additions and 0 deletions
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2
toolkit/components/console/Makefile.in
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@ -15,4 +15,6 @@ EXTRA_COMPONENTS = \
jsconsole-clhandler.manifest \
$(NULL)
TEST_DIRS = tests
include $(topsrcdir)/config/rules.mk

18
toolkit/components/console/tests/Makefile.in Normal file
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@ -0,0 +1,18 @@
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
DEPTH = @DEPTH@
topsrcdir = @top_srcdir@
srcdir = @srcdir@
VPATH = @srcdir@
relativesrcdir = @relativesrcdir@
include $(DEPTH)/config/autoconf.mk
MOCHITEST_CHROME_FILES = \
test_hugeURIs.xul \
$(NULL)
include $(topsrcdir)/config/rules.mk

64
toolkit/components/console/tests/test_hugeURIs.xul Normal file
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@ -0,0 +1,64 @@
<?xml version="1.0"?>
<?xml-stylesheet type="text/css" href="chrome://global/skin"?>
<?xml-stylesheet type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"?>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=796179
-->
<window title="Mozilla Bug 796179"
xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
onload="RunTest();">
<script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"/>
<!-- Detect severe performance and memory issues when large amounts of errors
are reported from CSS embedded in a file with a long data URI. Addressed
by 786108 for issues internal to the style system and by 796179 for issues
related to the error console. This error console test should finish quickly
with those patches and run for a very long time or OOM otherwise. -->
<!-- test results are displayed in the html:body -->
<body xmlns="http://www.w3.org/1999/xhtml">
<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=796179"
target="_blank">Mozilla Bug 796179</a>
<div id="badSVG" style="max-width: 1; max-height: 1; overflow: hidden"></div>
</body>
<!-- display the error console so we can test its reaction to the test -->
<iframe id="errorConsoleFrame" height="400" src="chrome://global/content/console.xul"></iframe>
<!-- test code -->
<script type="application/javascript">
<![CDATA[
function RunTest()
{
// Create the bad SVG and add it to the document.
var img = new Array;
img.push('<img src="data:image/svg+xml,');
img.push(encodeURIComponent('<svg xmlns="http://www.w3.org/2000/svg" width="300px" height="300px">'));
for (var i = 0 ; i < 10000 ; i++)
img.push(encodeURIComponent('<circle cx="0" cy="0" r="1" style="xxx-invalid-property: 0;"/>'));
img.push(encodeURIComponent('</svg>'));
img.push('" />');
document.getElementById('badSVG').innerHTML = img.join('');
// We yield control of the thread, allowing the error console to render.
// If we get control back without timing out or OOMing then the test passed.
SimpleTest.waitForExplicitFinish();
SimpleTest.executeSoon(function() {
// Clean up.
var elem = document.getElementById('errorConsoleFrame');
elem.parentNode.removeChild(elem);
elem = document.getElementById('badSVG');
elem.parentNode.removeChild(elem);
elem = null;
// Finish the test with a pass.
ok(true, 'Error console rendered OK.');
SimpleTest.finish();
}, 0);
}
]]>
</script>
</window>