test_net_failedtoprocess.html

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<!DOCTYPE HTML>

<html>

<!--

Test that a image decoding error producs a net:failed-to-process-uri-content

observer event with the nsIURI of the failed image as the subject

-->

<head>

  <title>Test for image net:failed-to-process-uri-content</title>

  <script src="/tests/SimpleTest/SimpleTest.js"></script>

  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />

</head>

<body>

<p id="display"></p>

<pre id="test">

</pre>

<script type="application/javascript">

SimpleTest.waitForExplicitFinish();

const Ci = SpecialPowers.Ci;

const Cc = SpecialPowers.Cc;

var obs = Cc["@mozilla.org/observer-service;1"].getService();

obs = obs.QueryInterface(Ci.nsIObserverService);

var observer = {

  QueryInterface (aIID) {

    if (aIID.equals(Ci.nsISupports) ||

        aIID.equals(Ci.nsIObserver))

      return this;

    throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);

},

  observe(subject, topic) {

    ok(topic == "net:failed-to-process-uri-content", "wrong topic");

    subject = subject.QueryInterface(Ci.nsIURI);

    is(subject.asciiSpec, `${location.origin}/tests/image/test/mochitest/invalid.jpg`, "wrong subject");

    obs.removeObserver(this, "net:failed-to-process-uri-content");

    SimpleTest.finish();

};

obs.addObserver(SpecialPowers.wrapCallbackObject(observer), "net:failed-to-process-uri-content");

document.write('<img src="damon.jpg">');

document.write('<img src="invalid.jpg">');

</script>

</body>

</html>