test_nullCharFile.xhtml

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<html xmlns="http://www.w3.org/1999/xhtml">

<head>

  <title>Test for Handling of null char</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>

<iframe id="test"></iframe>

<script type="text/javascript">

var tests = [

  ["test.html\u0000.png", "test.html_.png"],

  ["test.html.\u0000png", "test.html._png"],

];

add_task(async function() {

  function promiseMessage(messageName) {

    return new Promise(resolve => {

      chromeScript.addMessageListener(messageName, function listener(data) {

        chromeScript.removeMessageListener(messageName, listener);

        resolve(data);

});

});

  let url = SimpleTest.getTestFileURL("HelperAppLauncherDialog_chromeScript.js");

  let chromeScript = SpecialPowers.loadChromeScript(url);

  function wrongAPICallListener(msg) {

ok(

      false,

      `Called ${msg} when always ask pref was set to ${

        Services.prefs.getBoolPref(

          "browser.download.always_ask_before_handling_new_types"

      }, which shouldn't happen.`

);

  chromeScript.addMessageListener("wrongAPICall", wrongAPICallListener);

  for (let prefVal of [false, true]) {

    info("Pushing pref");

    await SpecialPowers.pushPrefEnv({

      set: [["browser.download.always_ask_before_handling_new_types", prefVal]]

});

    for (let [name, expected] of tests) {

      let promiseName = promiseMessage("suggestedFileName");

      const a = document.createElement('a');

      // Pass an unknown mimetype so we don't "correct" the extension:

      a.href = "data:application/baconizer;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAAAAAA6fptVAAAACklEQVQI12NgAAAAAgAB4iG8MwAAAABJRU5ErkJggg==";

      a.download = name;

      a.dispatchEvent(new MouseEvent('click'));

      is((await promiseName), expected, "got the expected sanitized name");

  // Clean up.

  let promise = promiseMessage("unregistered");

  chromeScript.sendAsyncMessage("unregister");

  await promise;

  chromeScript.removeMessageListener("wrongAPICall", wrongAPICallListener);

  chromeScript.destroy();

});

</script>

</body>

</html>