gecko/js/xpconnect/tests/unit/test_import.js
2012-05-21 12:12:37 +01:00

92 lines
4.1 KiB
JavaScript

/* 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/. */
function run_test() {
var scope = {};
Components.utils.import("resource://gre/modules/XPCOMUtils.jsm", scope);
do_check_eq(typeof(scope.XPCOMUtils), "object");
do_check_eq(typeof(scope.XPCOMUtils.generateNSGetFactory), "function");
// access module's global object directly without importing any
// symbols
var module = Components.utils.import("resource://gre/modules/XPCOMUtils.jsm",
null);
do_check_eq(typeof(XPCOMUtils), "undefined");
do_check_eq(typeof(module), "object");
do_check_eq(typeof(module.XPCOMUtils), "object");
do_check_eq(typeof(module.XPCOMUtils.generateNSGetFactory), "function");
do_check_true(scope.XPCOMUtils == module.XPCOMUtils);
// import symbols to our global object
do_check_eq(typeof(Components.utils.import), "function");
Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
do_check_eq(typeof(XPCOMUtils), "object");
do_check_eq(typeof(XPCOMUtils.generateNSGetFactory), "function");
// try on a new object
var scope2 = {};
Components.utils.import("resource://gre/modules/XPCOMUtils.jsm", scope2);
do_check_eq(typeof(scope2.XPCOMUtils), "object");
do_check_eq(typeof(scope2.XPCOMUtils.generateNSGetFactory), "function");
do_check_true(scope2.XPCOMUtils == scope.XPCOMUtils);
// try on a new object using the resolved URL
var res = Components.classes["@mozilla.org/network/protocol;1?name=resource"]
.getService(Components.interfaces.nsIResProtocolHandler);
var resURI = res.newURI("resource://gre/modules/XPCOMUtils.jsm", null, null);
dump("resURI: " + resURI + "\n");
var filePath = res.resolveURI(resURI);
var scope3 = {};
Components.utils.import(filePath, scope3);
do_check_eq(typeof(scope3.XPCOMUtils), "object");
do_check_eq(typeof(scope3.XPCOMUtils.generateNSGetFactory), "function");
do_check_true(scope3.XPCOMUtils == scope.XPCOMUtils);
// make sure we throw when the second arg is bogus
var didThrow = false;
try {
Components.utils.import("resource://gre/modules/XPCOMUtils.jsm", "wrong");
} catch (ex) {
print("exception (expected): " + ex);
didThrow = true;
}
do_check_true(didThrow);
// try to create a component
do_load_manifest("component_import.manifest");
const contractID = "@mozilla.org/tests/module-importer;";
do_check_true((contractID + "1") in Components.classes);
var foo = Components.classes[contractID + "1"]
.createInstance(Components.interfaces.nsIClassInfo);
do_check_true(Boolean(foo));
do_check_true(foo.contractID == contractID + "1");
// XXX the following check succeeds only if the test component wasn't
// already registered. Need to figure out a way to force registration
// (to manually force it, delete compreg.dat before running the test)
// do_check_true(foo.wrappedJSObject.postRegisterCalled);
// Call getInterfaces to test line numbers in JS components. But as long as
// we're doing that, why not test what it returns too?
// Kind of odd that this is not returning an array containing the
// number... Or for that matter not returning an array containing an object?
var interfaces = foo.getInterfaces({});
do_check_eq(interfaces, Components.interfaces.nsIClassInfo.number);
// try to create a component by CID
const cid = "{6b933fe6-6eba-4622-ac86-e4f654f1b474}";
do_check_true(cid in Components.classesByID);
foo = Components.classesByID[cid]
.createInstance(Components.interfaces.nsIClassInfo);
do_check_true(foo.contractID == contractID + "1");
// try to create another component which doesn't directly implement QI
do_check_true((contractID + "2") in Components.classes);
var bar = Components.classes[contractID + "2"]
.createInstance(Components.interfaces.nsIClassInfo);
do_check_true(Boolean(bar));
do_check_true(bar.contractID == contractID + "2");
}