test_SpecialPowersStructuredClone.html

Enable keyboard shortcuts

<!DOCTYPE HTML>

<html>

<head>

  <title>Test for structured clone of SpecialPowers methods</title>

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

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

</head>

<body>

<script>

  add_task(async function test_findUnexpectedCrashDumpFiles() {

    let retval = await SpecialPowers.findUnexpectedCrashDumpFiles();

    ok(SpecialPowers.isWrapper(retval), "Returns wrapper");

    let realValue = SpecialPowers.unwrap(retval);

    ok(Array.isArray(realValue), "Unwrapped value is array");

is(

      SpecialPowers.unwrap(SpecialPowers.Cu.getGlobalForObject(realValue)),

      window,

      "Value part of current global"

);

    // Now the part of interest: Can we clone? Regression test for bug 2007587:

    structuredClone(realValue);

    let actualError;

    try {

      structuredClone(retval);

      actualError = "(no error thrown)";

    } catch (e) {

      actualError = e.toString();

is(

      actualError,

      "DataCloneError: Proxy object could not be cloned.",

      "Wrapped value cannot be structured cloned"

);

});

</script>

</body>

</html>