зеркало из https://github.com/mozilla/gecko-dev.git
495 строки
18 KiB
JavaScript
Executable File
495 строки
18 KiB
JavaScript
Executable File
/**
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* Import common SimpleTest methods so that they're usable in this window.
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*/
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var imports = [ "SimpleTest", "is", "isnot", "ise", "ok", "onerror", "todo",
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"todo_is", "todo_isnot" ];
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for each (var name in imports) {
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window[name] = window.opener.wrappedJSObject[name];
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}
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/**
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* Define global constants and variables.
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*/
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const NAV_NONE = 0;
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const NAV_BACK = 1;
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const NAV_FORWARD = 2;
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const NAV_URI = 3;
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const NAV_RELOAD = 4;
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var gExpectedEvents; // an array of events which are expected to
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// be triggered by this navigation
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var gUnexpectedEvents; // an array of event names which are NOT expected
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// to be triggered by this navigation
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var gFinalEvent; // true if the last expected event has fired
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var gUrisNotInBFCache = []; // an array of uri's which shouldn't be stored
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// in the bfcache
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var gNavType = NAV_NONE; // defines the most recent navigation type
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// executed by doPageNavigation
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var gOrigMaxTotalViewers = // original value of max_total_viewers,
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undefined; // to be restored at end of test
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var gExtractedPath = null; //used to cache file path for extracting files from a .jar file
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/**
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* The doPageNavigation() function performs page navigations asynchronously,
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* listens for specified events, and compares actual events with a list of
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* expected events. When all expected events have occurred, an optional
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* callback can be notified. The parameter passed to this function is an
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* object with the following properties:
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*
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* uri: if !undefined, the browser will navigate to this uri
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*
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* back: if true, the browser will execute goBack()
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*
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* forward: if true, the browser will execute goForward()
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*
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* reload: if true, the browser will execute reload()
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*
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* eventsToListenFor: an array containing one or more of the following event
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* types to listen for: "pageshow", "pagehide", "onload",
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* "onunload". If this property is undefined, only a
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* single "pageshow" events will be listened for. If this
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* property is explicitly empty, [], then no events will
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* be listened for.
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*
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* expectedEvents: an array of one or more expectedEvent objects,
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* corresponding to the events which are expected to be
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* fired for this navigation. Each object has the
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* following properties:
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*
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* type: one of the event type strings
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* title (optional): the title of the window the
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* event belongs to
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* persisted (optional): the event's expected
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* .persisted attribute
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*
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* This function will verify that events with the
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* specified properties are fired in the same order as
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* specified in the array. If .title or .persisted
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* properties for an expectedEvent are undefined, those
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* properties will not be verified for that particular
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* event.
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*
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* This property is ignored if eventsToListenFor is
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* undefined or [].
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*
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* preventBFCache: if true, an unload handler will be added to the loaded
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* page to prevent it from being bfcached. This property
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* has no effect when eventsToListenFor is [].
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*
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* onNavComplete: a callback which is notified after all expected events
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* have occurred, or after a timeout has elapsed. This
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* callback is not notified if eventsToListenFor is [].
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*
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* There must be an expectedEvent object for each event of the types in
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* eventsToListenFor which is triggered by this navigation. For example, if
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* eventsToListenFor = [ "pagehide", "pageshow" ], then expectedEvents
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* must contain an object for each pagehide and pageshow event which occurs as
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* a result of this navigation.
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*/
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function doPageNavigation(params) {
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// Parse the parameters.
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let back = params.back ? params.back : false;
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let forward = params.forward ? params.forward : false;
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let reload = params.reload ? params.reload : false;
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let uri = params.uri ? params.uri : false;
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let eventsToListenFor = typeof(params.eventsToListenFor) != "undefined" ?
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params.eventsToListenFor : ["pageshow"];
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gExpectedEvents = typeof(params.eventsToListenFor) == "undefined" ||
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eventsToListenFor.length == 0 ? undefined : params.expectedEvents;
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gUnexpectedEvents = typeof(params.eventsToListenFor) == "undefined" ||
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eventsToListenFor.length == 0 ? undefined : params.unexpectedEvents;
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let preventBFCache = (typeof[params.preventBFCache] == "undefined") ?
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false : params.preventBFCache;
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let waitOnly = (typeof(params.waitForEventsOnly) == "boolean"
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&& params.waitForEventsOnly);
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// Do some sanity checking on arguments.
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if (back && forward)
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throw "Can't specify both back and forward";
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if (back && uri)
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throw "Can't specify both back and a uri";
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if (forward && uri)
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throw "Can't specify both forward and a uri";
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if (reload && (forward || back || uri))
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throw "Can't specify reload and another navigation type";
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if (!back && !forward && !uri && !reload && !waitOnly)
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throw "Must specify back or foward or reload or uri";
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if (params.onNavComplete && eventsToListenFor.length == 0)
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throw "Can't use onNavComplete when eventsToListenFor == []";
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if (params.preventBFCache && eventsToListenFor.length == 0)
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throw "Can't use preventBFCache when eventsToListenFor == []";
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if (params.preventBFCache && waitOnly)
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throw "Can't prevent bfcaching when only waiting for events";
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if (waitOnly && typeof(params.onNavComplete) == "undefined")
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throw "Must specify onNavComplete when specifying waitForEventsOnly";
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if (waitOnly && (back || forward || reload || uri))
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throw "Can't specify a navigation type when using waitForEventsOnly";
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for each (let anEventType in eventsToListenFor) {
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let eventFound = false;
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if ( (anEventType == "pageshow") && (!gExpectedEvents) )
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eventFound = true;
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for each (let anExpectedEvent in gExpectedEvents) {
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if (anExpectedEvent.type == anEventType)
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eventFound = true;
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}
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for each (let anExpectedEventType in gUnexpectedEvents) {
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if (anExpectedEventType == anEventType)
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eventFound = true;
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}
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if (!eventFound)
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throw "Event type " + anEventType + " is specified in " +
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"eventsToListenFor, but not in expectedEvents";
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}
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// If the test explicitly sets .eventsToListenFor to [], don't wait for any
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// events.
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gFinalEvent = eventsToListenFor.length == 0 ? true : false;
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// Add an event listener for each type of event in the .eventsToListenFor
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// property of the input parameters.
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for each (let eventType in eventsToListenFor) {
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dump("TEST: registering a listener for " + eventType + " events\n");
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TestWindow.getBrowser().addEventListener(eventType, pageEventListener,
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true);
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}
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// Perform the specified navigation.
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if (back) {
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gNavType = NAV_BACK;
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TestWindow.getBrowser().goBack();
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}
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else if (forward) {
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gNavType = NAV_FORWARD;
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TestWindow.getBrowser().goForward();
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}
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else if (uri) {
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gNavType = NAV_URI;
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TestWindow.getBrowser().loadURI(uri);
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}
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else if (reload) {
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gNavType = NAV_RELOAD;
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TestWindow.getBrowser().reload();
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}
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else if (waitOnly) {
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gNavType = NAV_NONE;
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}
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else {
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throw "No valid navigation type passed to doPageNavigation!";
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}
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// If we're listening for events and there is an .onNavComplete callback,
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// wait for all events to occur, and then call doPageNavigation_complete().
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if (eventsToListenFor.length > 0 && params.onNavComplete)
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{
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waitForTrue(
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function() { return gFinalEvent; },
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function() {
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doPageNavigation_complete(eventsToListenFor, params.onNavComplete,
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preventBFCache);
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} );
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}
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}
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/**
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* Finish doPageNavigation(), by removing event listeners, adding an unload
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* handler if appropriate, and calling the onNavComplete callback. This
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* function is called after all the expected events for this navigation have
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* occurred.
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*/
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function doPageNavigation_complete(eventsToListenFor, onNavComplete,
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preventBFCache) {
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// Unregister our event listeners.
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dump("TEST: removing event listeners\n");
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for each (let eventType in eventsToListenFor) {
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TestWindow.getBrowser().removeEventListener(eventType, pageEventListener,
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true);
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}
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// If the .preventBFCache property was set, add an empty unload handler to
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// prevent the page from being bfcached.
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let uri = TestWindow.getBrowser().currentURI.spec;
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if (preventBFCache) {
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TestWindow.getWindow().addEventListener("unload", function() {
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dump("TEST: Called dummy unload function to prevent page from " +
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"being bfcached.\n");
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}, true);
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// Save the current uri in an array of uri's which shouldn't be
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// stored in the bfcache, for later verification.
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if (!(uri in gUrisNotInBFCache)) {
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gUrisNotInBFCache.push(uri);
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}
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} else if (gNavType == NAV_URI) {
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// If we're navigating to a uri and .preventBFCache was not
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// specified, splice it out of gUrisNotInBFCache if it's there.
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gUrisNotInBFCache.forEach(
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function(element, index, array) {
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if (element == uri) {
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array.splice(index, 1);
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}
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}, this);
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}
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// Notify the callback now that we're done.
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onNavComplete.call();
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}
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/**
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* Allows a test to wait for page navigation events, and notify a
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* callback when they've all been received. This works exactly the
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* same as doPageNavigation(), except that no navigation is initiated.
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*/
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function waitForPageEvents(params) {
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params.waitForEventsOnly = true;
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doPageNavigation(params);
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}
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/**
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* The event listener which listens for expectedEvents.
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*/
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function pageEventListener(event) {
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try {
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dump("TEST: eventListener received a " + event.type + " event for page " +
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event.originalTarget.title + ", persisted=" + event.persisted + "\n");
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} catch(e) {
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// Ignore any exception.
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}
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// If this page shouldn't be in the bfcache because it was previously
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// loaded with .preventBFCache, make sure that its pageshow event
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// has .persisted = false, even if the test doesn't explicitly test
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// for .persisted.
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if ( (event.type == "pageshow") &&
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(gNavType == NAV_BACK || gNavType == NAV_FORWARD) ) {
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let uri = TestWindow.getBrowser().currentURI.spec;
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if (uri in gUrisNotInBFCache) {
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ok(!event.persisted, "pageshow event has .persisted = false, even " +
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"though it was loaded with .preventBFCache previously\n");
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}
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}
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if (typeof(gUnexpectedEvents) != "undefined") {
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is(gUnexpectedEvents.indexOf(event.type), -1,
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"Should not get unexpected event " + event.type);
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}
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// If no expected events were specified, mark the final event as having been
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// triggered when a pageshow event is fired; this will allow
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// doPageNavigation() to return.
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if ((typeof(gExpectedEvents) == "undefined") && event.type == "pageshow")
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{
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setTimeout(function() { gFinalEvent = true; }, 0);
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return;
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}
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// If there are explicitly no expected events, but we receive one, it's an
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// error.
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if (gExpectedEvents.length == 0) {
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ok(false, "Unexpected event (" + event.type + ") occurred");
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return;
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}
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// Grab the next expected event, and compare its attributes against the
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// actual event.
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let expected = gExpectedEvents.shift();
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is(event.type, expected.type,
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"A " + expected.type + " event was expected, but a " +
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event.type + " event occurred");
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if (typeof(expected.title) != "undefined") {
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ok(event.originalTarget instanceof HTMLDocument,
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"originalTarget for last " + event.type +
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" event not an HTMLDocument");
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is(event.originalTarget.title, expected.title,
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"A " + event.type + " event was expected for page " +
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expected.title + ", but was fired for page " +
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event.originalTarget.title);
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}
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if (typeof(expected.persisted) != "undefined") {
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is(event.persisted, expected.persisted,
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"The persisted property of the " + event.type + " event on page " +
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event.originalTarget.location + " had an unexpected value");
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}
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if ("visibilityState" in expected) {
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is(event.originalTarget.visibilityState, expected.visibilityState,
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"The visibilityState property of the document on page " +
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event.originalTarget.location + " had an unexpected value");
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}
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if ("hidden" in expected) {
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is(event.originalTarget.hidden, expected.hidden,
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"The hidden property of the document on page " +
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event.originalTarget.location + " had an unexpected value");
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}
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// If we're out of expected events, let doPageNavigation() return.
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if (gExpectedEvents.length == 0)
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setTimeout(function() { gFinalEvent = true; }, 0);
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}
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/**
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* End a test.
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*/
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function finish() {
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// Work around bug 467960.
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var history = TestWindow.getBrowser().webNavigation.sessionHistory;
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history.PurgeHistory(history.count);
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// If the test changed the value of max_total_viewers via a call to
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// enableBFCache(), then restore it now.
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if (typeof(gOrigMaxTotalViewers) != "undefined") {
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var prefs = Components.classes["@mozilla.org/preferences-service;1"]
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.getService(Components.interfaces.nsIPrefBranch);
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prefs.setIntPref("browser.sessionhistory.max_total_viewers",
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gOrigMaxTotalViewers);
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}
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// Close the test window and signal the framework that the test is done.
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let opener = window.opener;
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let SimpleTest = opener.wrappedJSObject.SimpleTest;
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// Wait for the window to be closed before finishing the test
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let ww = Components.classes["@mozilla.org/embedcomp/window-watcher;1"]
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.getService(Components.interfaces.nsIWindowWatcher);
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ww.registerNotification(function(subject, topic, data) {
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if (topic == "domwindowclosed") {
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ww.unregisterNotification(arguments.callee);
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SimpleTest.waitForFocus(function() {
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SimpleTest.finish();
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}, opener);
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}
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});
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window.close();
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}
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/**
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* Helper function which waits until another function returns true, or until a
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* timeout occurs, and then notifies a callback.
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*
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* Parameters:
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*
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* fn: a function which is evaluated repeatedly, and when it turns true,
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* the onWaitComplete callback is notified.
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*
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* onWaitComplete: a callback which will be notified when fn() returns
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* true, or when a timeout occurs.
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*
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* timeout: a timeout, in seconds or ms, after which waitForTrue() will
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* fail an assertion and then return, even if the fn function never
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* returns true. If timeout is undefined, waitForTrue() will never
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* time out.
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*/
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function waitForTrue(fn, onWaitComplete, timeout) {
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var start = new Date().valueOf();
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if (typeof(timeout) != "undefined") {
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// If timeoutWait is less than 500, assume it represents seconds, and
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// convert to ms.
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if (timeout < 500)
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timeout *= 1000;
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}
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// Loop until the test function returns true, or until a timeout occurs,
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// if a timeout is defined.
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var intervalid;
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intervalid =
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setInterval(
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function() {
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var timeoutHit = false;
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if (typeof(timeout) != "undefined") {
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timeoutHit = new Date().valueOf() - start >=
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timeout ? true : false;
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if (timeoutHit) {
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ok(false, "Timed out waiting for condition");
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}
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}
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if (timeoutHit || fn.call()) {
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// Stop calling the test function and notify the callback.
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clearInterval(intervalid);
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onWaitComplete.call();
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}
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}, 20);
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}
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/**
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* Enable or disable the bfcache.
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*
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* Parameters:
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*
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* enable: if true, set max_total_viewers to -1 (the default); if false, set
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* to 0 (disabled), if a number, set it to that specific number
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*/
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function enableBFCache(enable) {
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var prefs = Components.classes["@mozilla.org/preferences-service;1"]
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.getService(Components.interfaces.nsIPrefBranch);
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// If this is the first time the test called enableBFCache(),
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// store the original value of max_total_viewers, so it can
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// be restored at the end of the test.
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if (typeof(gOrigMaxTotalViewers) == "undefined") {
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gOrigMaxTotalViewers =
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prefs.getIntPref("browser.sessionhistory.max_total_viewers");
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}
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if (typeof(enable) == "boolean") {
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if (enable)
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prefs.setIntPref("browser.sessionhistory.max_total_viewers", -1);
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else
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prefs.setIntPref("browser.sessionhistory.max_total_viewers", 0);
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}
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else if (typeof(enable) == "number") {
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prefs.setIntPref("browser.sessionhistory.max_total_viewers", enable);
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}
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}
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/*
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* get http root for local tests. Use a single extractJarToTmp instead of
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* extracting for each test.
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* Returns a file://path if we have a .jar file
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*/
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function getHttpRoot() {
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var location = window.location.href;
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location = getRootDirectory(location);
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var jar = getJar(location);
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if (jar != null) {
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if (gExtractedPath == null) {
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var resolved = extractJarToTmp(jar);
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gExtractedPath = resolved.path;
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}
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} else {
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return null;
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}
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return "file://" + gExtractedPath + '/';
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}
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/**
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* Returns the full HTTP url for a file in the mochitest docshell test
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* directory.
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*/
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function getHttpUrl(filename) {
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var root = getHttpRoot();
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if (root == null) {
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root = "http://mochi.test:8888/chrome/docshell/test/chrome/";
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}
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return root + filename;
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}
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/**
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* A convenience object with methods that return the current test window,
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* browser, and document.
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*/
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var TestWindow = {};
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TestWindow.getWindow = function () {
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return document.getElementById("content").contentWindow;
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}
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TestWindow.getBrowser = function () {
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return document.getElementById("content");
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}
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TestWindow.getDocument = function () {
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return document.getElementById("content").contentDocument;
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}
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