gecko-dev/testing/xpcshell/head.js

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JavaScript

/* vim:set ts=2 sw=2 sts=2 et: */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is Google Inc.
* Portions created by the Initial Developer are Copyright (C) 2005
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Darin Fisher <darin@meer.net>
* Boris Zbarsky <bzbarsky@mit.edu>
* Jeff Walden <jwalden+code@mit.edu>
* Serge Gautherie <sgautherie.bz@free.fr>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/*
* This file contains common code that is loaded before each test file(s).
* See http://developer.mozilla.org/en/docs/Writing_xpcshell-based_unit_tests
* for more information.
*/
var _quit = false;
var _passed = true;
var _tests_pending = 0;
var _passedChecks = 0, _falsePassedChecks = 0;
var _cleanupFunctions = [];
var _pendingCallbacks = [];
// Disable automatic network detection, so tests work correctly when
// not connected to a network.
let (ios = Components.classes["@mozilla.org/network/io-service;1"]
.getService(Components.interfaces.nsIIOService2)) {
ios.manageOfflineStatus = false;
ios.offline = false;
}
// Enable crash reporting, if possible
// We rely on the Python harness to set MOZ_CRASHREPORTER_NO_REPORT
// and handle checking for minidumps.
if ("@mozilla.org/toolkit/crash-reporter;1" in Components.classes) {
// Remember to update </toolkit/crashreporter/test/unit/test_crashreporter.js>
// too if you change this initial setting.
let (crashReporter =
Components.classes["@mozilla.org/toolkit/crash-reporter;1"]
.getService(Components.interfaces.nsICrashReporter)) {
crashReporter.enabled = true;
crashReporter.minidumpPath = do_get_cwd();
}
}
function _TimerCallback(func, timer) {
if (typeof func !== "function")
throw new Error("string callbacks no longer accepted; use a function!");
this._func = func;
// Keep timer alive until it fires
_pendingCallbacks.push(timer);
}
_TimerCallback.prototype = {
QueryInterface: function(iid) {
if (iid.Equals(Components.interfaces.nsITimerCallback) ||
iid.Equals(Components.interfaces.nsISupports))
return this;
throw Components.results.NS_ERROR_NO_INTERFACE;
},
notify: function(timer) {
_pendingCallbacks.splice(_pendingCallbacks.indexOf(timer), 1);
this._func.call(null);
}
};
function _do_main() {
if (_quit)
return;
dump("TEST-INFO | (xpcshell/head.js) | running event loop\n");
var thr = Components.classes["@mozilla.org/thread-manager;1"]
.getService().currentThread;
while (!_quit)
thr.processNextEvent(true);
while (thr.hasPendingEvents())
thr.processNextEvent(true);
}
function _do_quit() {
dump("TEST-INFO | (xpcshell/head.js) | exiting test\n");
_quit = true;
}
function _dump_exception_stack(stack) {
stack.split("\n").forEach(function(frame) {
if (!frame)
return;
// frame is of the form "fname(args)@file:line"
let frame_regexp = new RegExp("(.*)\\(.*\\)@(.*):(\\d*)", "g");
let parts = frame_regexp.exec(frame);
dump("JS frame :: " + parts[2] + " :: " + (parts[1] ? parts[1] : "anonymous") + " :: line " + parts[3] + "\n");
});
}
function _execute_test() {
// Map resource://test/ to the current working directory.
let (ios = Components.classes["@mozilla.org/network/io-service;1"]
.getService(Components.interfaces.nsIIOService)) {
let protocolHandler =
ios.getProtocolHandler("resource")
.QueryInterface(Components.interfaces.nsIResProtocolHandler);
let curDirURI = ios.newFileURI(do_get_cwd());
protocolHandler.setSubstitution("test", curDirURI);
}
// _HEAD_FILES is dynamically defined by <runxpcshelltests.py>.
_load_files(_HEAD_FILES);
// _TEST_FILE is dynamically defined by <runxpcshelltests.py>.
_load_files(_TEST_FILE);
try {
do_test_pending();
run_test();
do_test_finished();
_do_main();
} catch (e) {
_passed = false;
// do_check failures are already logged and set _quit to true and throw
// NS_ERROR_ABORT. If both of those are true it is likely this exception
// has already been logged so there is no need to log it again. It's
// possible that this will mask an NS_ERROR_ABORT that happens after a
// do_check failure though.
if (!_quit || e != Components.results.NS_ERROR_ABORT) {
dump("TEST-UNEXPECTED-FAIL | (xpcshell/head.js) | " + e);
if (e.stack) {
dump(" - See following stack:\n");
_dump_exception_stack(e.stack);
}
else {
dump("\n");
}
}
}
// _TAIL_FILES is dynamically defined by <runxpcshelltests.py>.
_load_files(_TAIL_FILES);
// Execute all of our cleanup functions.
var func;
while ((func = _cleanupFunctions.pop()))
func();
if (!_passed)
return;
var truePassedChecks = _passedChecks - _falsePassedChecks;
if (truePassedChecks > 0)
dump("TEST-PASS | (xpcshell/head.js) | " + truePassedChecks + " (+ " +
_falsePassedChecks + ") check(s) passed\n");
else
// ToDo: switch to TEST-UNEXPECTED-FAIL when all tests have been updated. (Bug 496443)
dump("TEST-INFO | (xpcshell/head.js) | No (+ " + _falsePassedChecks + ") checks actually run\n");
}
/**
* Loads files.
*
* @param aFiles Array of files to load.
*/
function _load_files(aFiles) {
function loadTailFile(element, index, array) {
load(element);
}
aFiles.forEach(loadTailFile);
}
/************** Functions to be used from the tests **************/
function do_timeout(delay, func) {
var timer = Components.classes["@mozilla.org/timer;1"]
.createInstance(Components.interfaces.nsITimer);
timer.initWithCallback(new _TimerCallback(func, timer), delay, timer.TYPE_ONE_SHOT);
}
function do_execute_soon(callback) {
do_test_pending();
var tm = Components.classes["@mozilla.org/thread-manager;1"]
.getService(Components.interfaces.nsIThreadManager);
tm.mainThread.dispatch({
run: function() {
try {
callback();
} catch (e) {
// do_check failures are already logged and set _quit to true and throw
// NS_ERROR_ABORT. If both of those are true it is likely this exception
// has already been logged so there is no need to log it again. It's
// possible that this will mask an NS_ERROR_ABORT that happens after a
// do_check failure though.
if (!_quit || e != Components.results.NS_ERROR_ABORT) {
dump("TEST-UNEXPECTED-FAIL | (xpcshell/head.js) | " + e);
if (e.stack) {
dump(" - See following stack:\n");
_dump_exception_stack(e.stack);
}
else {
dump("\n");
}
_do_quit();
}
}
finally {
do_test_finished();
}
}
}, Components.interfaces.nsIThread.DISPATCH_NORMAL);
}
function do_throw(text, stack) {
if (!stack)
stack = Components.stack.caller;
_passed = false;
dump("TEST-UNEXPECTED-FAIL | " + stack.filename + " | " + text +
" - See following stack:\n");
var frame = Components.stack;
while (frame != null) {
dump(frame + "\n");
frame = frame.caller;
}
_do_quit();
throw Components.results.NS_ERROR_ABORT;
}
function do_check_neq(left, right, stack) {
if (!stack)
stack = Components.stack.caller;
var text = left + " != " + right;
if (left == right)
do_throw(text, stack);
else {
++_passedChecks;
dump("TEST-PASS | " + stack.filename + " | [" + stack.name + " : " +
stack.lineNumber + "] " + text + "\n");
}
}
function do_check_eq(left, right, stack) {
if (!stack)
stack = Components.stack.caller;
var text = left + " == " + right;
if (left != right)
do_throw(text, stack);
else {
++_passedChecks;
dump("TEST-PASS | " + stack.filename + " | [" + stack.name + " : " +
stack.lineNumber + "] " + text + "\n");
}
}
function do_check_true(condition, stack) {
if (!stack)
stack = Components.stack.caller;
do_check_eq(condition, true, stack);
}
function do_check_false(condition, stack) {
if (!stack)
stack = Components.stack.caller;
do_check_eq(condition, false, stack);
}
function do_test_pending() {
++_tests_pending;
dump("TEST-INFO | (xpcshell/head.js) | test " + _tests_pending +
" pending\n");
}
function do_test_finished() {
dump("TEST-INFO | (xpcshell/head.js) | test " + _tests_pending +
" finished\n");
if (--_tests_pending == 0)
_do_quit();
}
function do_get_file(path, allowNonexistent) {
try {
let lf = Components.classes["@mozilla.org/file/directory_service;1"]
.getService(Components.interfaces.nsIProperties)
.get("CurWorkD", Components.interfaces.nsILocalFile);
let bits = path.split("/");
for (let i = 0; i < bits.length; i++) {
if (bits[i]) {
if (bits[i] == "..")
lf = lf.parent;
else
lf.append(bits[i]);
}
}
if (!allowNonexistent && !lf.exists()) {
// Not using do_throw(): caller will continue.
_passed = false;
var stack = Components.stack.caller;
dump("TEST-UNEXPECTED-FAIL | " + stack.filename + " | [" +
stack.name + " : " + stack.lineNumber + "] " + lf.path +
" does not exist\n");
}
return lf;
}
catch (ex) {
do_throw(ex.toString(), Components.stack.caller);
}
return null;
}
// do_get_cwd() isn't exactly self-explanatory, so provide a helper
function do_get_cwd() {
return do_get_file("");
}
/**
* Loads _HTTPD_JS_PATH file, which is dynamically defined by
* <runxpcshelltests.py>.
*/
function do_load_httpd_js() {
load(_HTTPD_JS_PATH);
}
function do_load_module(path) {
var lf = do_get_file(path);
const nsIComponentRegistrar = Components.interfaces.nsIComponentRegistrar;
do_check_true(Components.manager instanceof nsIComponentRegistrar);
// Previous do_check_true() is not a test check.
++_falsePassedChecks;
Components.manager.autoRegister(lf);
}
/**
* Parse a DOM document.
*
* @param aPath File path to the document.
* @param aType Content type to use in DOMParser.
*
* @return nsIDOMDocument from the file.
*/
function do_parse_document(aPath, aType) {
switch (aType) {
case "application/xhtml+xml":
case "application/xml":
case "text/xml":
break;
default:
do_throw("type: expected application/xhtml+xml, application/xml or text/xml," +
" got '" + aType + "'",
Components.stack.caller);
}
var lf = do_get_file(aPath);
const C_i = Components.interfaces;
const parserClass = "@mozilla.org/xmlextras/domparser;1";
const streamClass = "@mozilla.org/network/file-input-stream;1";
var stream = Components.classes[streamClass]
.createInstance(C_i.nsIFileInputStream);
stream.init(lf, -1, -1, C_i.nsIFileInputStream.CLOSE_ON_EOF);
var parser = Components.classes[parserClass]
.createInstance(C_i.nsIDOMParser);
var doc = parser.parseFromStream(stream, null, lf.fileSize, aType);
parser = null;
stream = null;
lf = null;
return doc;
}
/**
* Registers a function that will run when the test harness is done running all
* tests.
*
* @param aFunction
* The function to be called when the test harness has finished running.
*/
function do_register_cleanup(aFunction)
{
_cleanupFunctions.push(aFunction);
}
/**
* Registers a directory with the profile service,
* and return the directory as an nsILocalFile.
*
* @return nsILocalFile of the profile directory.
*/
function do_get_profile() {
// Since we have a profile, we will notify profile shutdown topics at
// the end of the current test, to ensure correct cleanup on shutdown.
do_register_cleanup(function() {
let obsSvc = Components.classes["@mozilla.org/observer-service;1"].
getService(Components.interfaces.nsIObserverService);
obsSvc.notifyObservers(null, "profile-change-net-teardown", null);
obsSvc.notifyObservers(null, "profile-change-teardown", null);
obsSvc.notifyObservers(null, "profile-before-change", null);
});
let env = Components.classes["@mozilla.org/process/environment;1"]
.getService(Components.interfaces.nsIEnvironment);
// the python harness sets this in the environment for us
let profd = env.get("XPCSHELL_TEST_PROFILE_DIR");
let file = Components.classes["@mozilla.org/file/local;1"]
.createInstance(Components.interfaces.nsILocalFile);
file.initWithPath(profd);
let dirSvc = Components.classes["@mozilla.org/file/directory_service;1"]
.getService(Components.interfaces.nsIProperties);
let provider = {
getFile: function(prop, persistent) {
persistent.value = true;
if (prop == "ProfD" || prop == "ProfLD" || prop == "ProfDS") {
return file.clone();
}
throw Components.results.NS_ERROR_FAILURE;
},
QueryInterface: function(iid) {
if (iid.equals(Components.interfaces.nsIDirectoryServiceProvider) ||
iid.equals(Components.interfaces.nsISupports)) {
return this;
}
throw Components.results.NS_ERROR_NO_INTERFACE;
}
};
dirSvc.QueryInterface(Components.interfaces.nsIDirectoryService)
.registerProvider(provider);
return file.clone();
}