test_scriptable_nsIClassInfo.js

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/* Any copyright is dedicated to the Public Domain.

https://creativecommons.org/publicdomain/zero/1.0/ */

add_task(function () {

  class TestClass {

    QueryInterface = ChromeUtils.generateQI([

      "nsIXPCTestInterfaceA",

      "nsIClassInfo",

]);

    interfaces = [Ci.nsIXPCTestInterfaceA, Ci.nsIClassInfo, Ci.nsISupports];

    contractID = "@mozilla.org/test/class;1";

    classDescription = "description";

    classID = Components.ID("{4da556d4-00fa-451a-a280-d2aec7c5f265}");

    flags = 0;

    name = "this is a test";

  let instance = new TestClass();

  Assert.ok(instance, "can create an instance");

  Assert.ok(instance.QueryInterface(Ci.nsIClassInfo), "can QI to nsIClassInfo");

  let registrar = Components.manager.QueryInterface(Ci.nsIComponentRegistrar);

  registrar.registerFactory(

    instance.classID,

    instance.classDescription,

    instance.contractID,

      createInstance(iid) {

        return instance.QueryInterface(iid);

},

);

  Assert.ok(true, "successfully registered the factory");

  let otherInstance = Cc["@mozilla.org/test/class;1"].createInstance(

    Ci.nsIXPCTestInterfaceA

);

  Assert.ok(otherInstance, "can create an instance via xpcom");

});