test_Signal.js - mozsearch

tests.test_Signal = function (t) {

    var submit = MochiKit.DOM.getElement('submit');

    var ident = null;

    var i = 0;

    var aFunction = function() {

        t.ok(this === submit, "aFunction should have 'this' as submit");

        i++;

        if (typeof(this.someVar) != 'undefined') {

            i += this.someVar;

};

    var aObject = {};

};

    ident = connect('submit', 'onclick', aFunction);

    MochiKit.DOM.getElement('submit').click();

    t.is(i, 1, 'HTML onclick event can be connected to a function');

    disconnect(ident);

    MochiKit.DOM.getElement('submit').click();

    t.is(i, 1, 'HTML onclick can be disconnected from a function');

    var submit = MochiKit.DOM.getElement('submit');

    ident = connect(submit, 'onclick', aFunction);

    submit.click();

    t.is(i, 2, 'Checking that a DOM element can be connected to a function');

    disconnect(ident);

    submit.click();

    t.is(i, 2, '...and then disconnected');

    if (MochiKit.DOM.getElement('submit').fireEvent ||

        (document.createEvent &&

        typeof(document.createEvent('MouseEvents').initMouseEvent) == 'function')) {

/*

            Adapted from:

            http://www.devdaily.com/java/jwarehouse/jforum/tests/selenium/javascript/htmlutils.js.shtml

            License: Apache

            Copyright: Copyright 2004 ThoughtWorks, Inc

*/

        var triggerMouseEvent = function(element, eventType, canBubble) {

            element = MochiKit.DOM.getElement(element);

            canBubble = (typeof(canBubble) == 'undefined') ? true : canBubble;

            if (element.fireEvent) {

                var newEvt = document.createEventObject();

                newEvt.clientX = 1;

                newEvt.clientY = 1;

                newEvt.button = 1;

                newEvt.detail = 3;

                element.fireEvent('on' + eventType, newEvt);

            } else if (document.createEvent && (typeof(document.createEvent('MouseEvents').initMouseEvent) == 'function')) {

                var evt = document.createEvent('MouseEvents');

                evt.initMouseEvent(eventType, canBubble, true, // event, bubbles, cancelable

                    document.defaultView, 3, // view, detail (either scroll or # of clicks)

                    1, 0, 0, 0, // screenX, screenY, clientX, clientY

                    false, false, false, false, // ctrlKey, altKey, shiftKey, metaKey

                    0, null); // buttonCode, relatedTarget

                element.dispatchEvent(evt);

};

        var eventTest = function(e) {

            i++;

            t.ok((typeof(e.event()) === 'object'), 'checking that event() is an object');

            t.ok((typeof(e.type()) === 'string'), 'checking that type() is a string');

            t.ok((e.target() === MochiKit.DOM.getElement('submit')), 'checking that target is "submit"');

            t.ok((typeof(e.modifier()) === 'object'), 'checking that modifier() is an object');

            t.ok(e.modifier().alt === false, 'checking that modifier().alt is defined, but false');

            t.ok(e.modifier().ctrl === false, 'checking that modifier().ctrl is defined, but false');

            t.ok(e.modifier().meta === false, 'checking that modifier().meta is defined, but false');

            t.ok(e.modifier().shift === false, 'checking that modifier().shift is defined, but  false');

            t.ok((typeof(e.mouse()) === 'object'), 'checking that mouse() is an object');

            t.ok((typeof(e.mouse().button) === 'object'), 'checking that mouse().button is an object');

            t.ok(e.mouse().button.left === true, 'checking that mouse().button.left is true');

            t.ok(e.mouse().button.middle === false, 'checking that mouse().button.middle is false');

            t.ok(e.mouse().button.right === false, 'checking that mouse().button.right is false');

            t.ok((typeof(e.mouse().page) === 'object'), 'checking that mouse().page is an object');

            t.ok((typeof(e.mouse().page.x) === 'number'), 'checking that mouse().page.x is a number');

            t.ok((typeof(e.mouse().page.y) === 'number'), 'checking that mouse().page.y is a number');

            t.ok((typeof(e.mouse().client) === 'object'), 'checking that mouse().client is an object');

            t.ok((typeof(e.mouse().client.x) === 'number'), 'checking that mouse().client.x is a number');

            t.ok((typeof(e.mouse().client.y) === 'number'), 'checking that mouse().client.y is a number');

            /* these should not be defined */

            t.ok((typeof(e.relatedTarget()) === 'undefined'), 'checking that relatedTarget() is undefined');

            t.ok((typeof(e.key()) === 'undefined'), 'checking that key() is undefined');

            t.ok((typeof(e.mouse().wheel) === 'undefined'), 'checking that mouse().wheel is undefined');

};

        ident = connect('submit', 'onmousedown', eventTest);

        triggerMouseEvent('submit', 'mousedown', false);

        t.is(i, 3, 'Connecting an event to an HTML object and firing a synthetic event');

        disconnect(ident);

        triggerMouseEvent('submit', 'mousedown', false);

        t.is(i, 3, 'Disconnecting an event to an HTML object and firing a synthetic event');

        ident = connect('submit', 'onmousewheel', function(e) {

            i++;

            t.ok((typeof(e.mouse()) === 'object'), 'checking that mouse() is an object');

            t.ok((typeof(e.mouse().wheel) === 'object'), 'checking that mouse().wheel is an object');

            t.ok((typeof(e.mouse().wheel.x) === 'number'), 'checking that mouse().wheel.x is a number');

            t.ok((typeof(e.mouse().wheel.y) === 'number'), 'checking that mouse().wheel.y is a number');

});

        var nativeSignal = 'mousewheel';

        if (MochiKit.Signal._browserLacksMouseWheelEvent()) {

            nativeSignal = 'DOMMouseScroll';

        triggerMouseEvent('submit', nativeSignal, false);

        t.is(i, 4, 'Connecting a mousewheel event to an HTML object and firing a synthetic event');

        disconnect(ident);

        triggerMouseEvent('submit', nativeSignal, false);

        t.is(i, 4, 'Disconnecting a mousewheel event to an HTML object and firing a synthetic event');

    // non-DOM tests

    var hasNoSignals = {};

    var hasSignals = {someVar: 1};

    var i = 0;

    var aFunction = function() {

        i++;

        if (typeof(this.someVar) != 'undefined') {

            i += this.someVar;

};

    var bFunction = function(someArg, someOtherArg) {

        i += someArg + someOtherArg;

};

    var aObject = {};

};

};

    var bObject = {};

};

    ident = connect(hasSignals, 'signalOne', aFunction);

    signal(hasSignals, 'signalOne');

    t.is(i, 2, 'Connecting function');

    i = 0;

    disconnect(ident);

    signal(hasSignals, 'signalOne');

    t.is(i, 0, 'New style disconnecting function');

    i = 0;

    ident = connect(hasSignals, 'signalOne', bFunction);

    signal(hasSignals, 'signalOne', 1, 2);

    t.is(i, 3, 'Connecting function');

    i = 0;

    disconnect(ident);

    signal(hasSignals, 'signalOne', 1, 2);

    t.is(i, 0, 'New style disconnecting function');

    i = 0;

    connect(hasSignals, 'signalOne', aFunction);

    signal(hasSignals, 'signalOne');

    t.is(i, 2, 'Connecting function');

    i = 0;

    disconnect(hasSignals, 'signalOne', aFunction);

    signal(hasSignals, 'signalOne');

    t.is(i, 0, 'Old style disconnecting function');

    i = 0;

    ident = connect(hasSignals, 'signalOne', aObject, aObject.aMethod);

    signal(hasSignals, 'signalOne');

    t.is(i, 1, 'Connecting obj-function');

    i = 0;

    disconnect(ident);

    signal(hasSignals, 'signalOne');

    t.is(i, 0, 'New style disconnecting obj-function');

    i = 0;

    connect(hasSignals, 'signalOne', aObject, aObject.aMethod);

    signal(hasSignals, 'signalOne');

    t.is(i, 1, 'Connecting obj-function');

    i = 0;

    disconnect(hasSignals, 'signalOne', aObject, aObject.aMethod);

    signal(hasSignals, 'signalOne');

    t.is(i, 0, 'Disconnecting obj-function');

    i = 0;

    ident = connect(hasSignals, 'signalTwo', aObject, 'aMethod');

    signal(hasSignals, 'signalTwo');

    t.is(i, 1, 'Connecting obj-string');

    i = 0;

    disconnect(ident);

    signal(hasSignals, 'signalTwo');

    t.is(i, 0, 'New style disconnecting obj-string');

    i = 0;

    connect(hasSignals, 'signalTwo', aObject, 'aMethod');

    signal(hasSignals, 'signalTwo');

    t.is(i, 1, 'Connecting obj-string');

    i = 0;

    disconnect(hasSignals, 'signalTwo', aObject, 'aMethod');

    signal(hasSignals, 'signalTwo');

    t.is(i, 0, 'Old style disconnecting obj-string');

    i = 0;

    var shouldRaise = function() { return undefined.attr; };

    try {

        connect(hasSignals, 'signalOne', shouldRaise);

        signal(hasSignals, 'signalOne');

        t.ok(false, 'An exception was not raised');

    } catch (e) {

        t.ok(true, 'An exception was raised');

    disconnect(hasSignals, 'signalOne', shouldRaise);

    t.is(i, 0, 'Exception raised, signal should not have fired');

    i = 0;

    connect(hasSignals, 'signalOne', aObject, 'aMethod');

    connect(hasSignals, 'signalOne', aObject, 'bMethod');

    signal(hasSignals, 'signalOne');

    t.is(i, 2, 'Connecting one signal to two slots in one object');

    i = 0;

    disconnect(hasSignals, 'signalOne', aObject, 'aMethod');

    disconnect(hasSignals, 'signalOne', aObject, 'bMethod');

    signal(hasSignals, 'signalOne');

    t.is(i, 0, 'Disconnecting one signal from two slots in one object');

    i = 0;

    connect(hasSignals, 'signalOne', aObject, 'aMethod');

    connect(hasSignals, 'signalOne', bObject, 'bMethod');

    signal(hasSignals, 'signalOne');

    t.is(i, 2, 'Connecting one signal to two slots in two objects');

    i = 0;

    disconnect(hasSignals, 'signalOne', aObject, 'aMethod');

    disconnect(hasSignals, 'signalOne', bObject, 'bMethod');

    signal(hasSignals, 'signalOne');

    t.is(i, 0, 'Disconnecting one signal from two slots in two objects');

    i = 0;

    try {

        connect(nothing, 'signalOne', aObject, 'aMethod');

        signal(nothing, 'signalOne');

        t.ok(false, 'An exception was not raised when connecting undefined');

    } catch (e) {

        t.ok(true, 'An exception was raised when connecting undefined');

    try {

        disconnect(nothing, 'signalOne', aObject, 'aMethod');

        t.ok(false, 'An exception was not raised when disconnecting undefined');

    } catch (e) {

        t.ok(true, 'An exception was raised when disconnecting undefined');

    try {

        connect(hasSignals, 'signalOne', nothing);

        signal(hasSignals, 'signalOne');

        t.ok(false, 'An exception was not raised when connecting an undefined function');

    } catch (e) {

        t.ok(true, 'An exception was raised when connecting an undefined function');

    try {

        disconnect(hasSignals, 'signalOne', nothing);

        t.ok(false, 'An exception was not raised when disconnecting an undefined function');

    } catch (e) {

        t.ok(true, 'An exception was raised when disconnecting an undefined function');

    try {

        connect(hasSignals, 'signalOne', aObject, aObject.nothing);

        signal(hasSignals, 'signalOne');

        t.ok(false, 'An exception was not raised when connecting an undefined method');

    } catch (e) {

        t.ok(true, 'An exception was raised when connecting an undefined method');

    try {

        connect(hasSignals, 'signalOne', aObject, 'nothing');

        signal(hasSignals, 'signalOne');

        t.ok(false, 'An exception was not raised when connecting an undefined method (as string)');

    } catch (e) {

        t.ok(true, 'An exception was raised when connecting an undefined method (as string)');

    t.is(i, 0, 'Signals should not have fired');

    connect(hasSignals, 'signalOne', aFunction);

    connect(hasSignals, 'signalOne', aObject, 'aMethod');

    disconnectAll(hasSignals, 'signalOne');

    signal(hasSignals, 'signalOne');

    t.is(i, 0, 'disconnectAll works with single explicit signal');

    i = 0;

    connect(hasSignals, 'signalOne', aFunction);

    connect(hasSignals, 'signalOne', aObject, 'aMethod');

    connect(hasSignals, 'signalTwo', aFunction);

    connect(hasSignals, 'signalTwo', aObject, 'aMethod');

    disconnectAll(hasSignals, 'signalOne');

    signal(hasSignals, 'signalOne');

    t.is(i, 0, 'disconnectAll works with single explicit signal');

    signal(hasSignals, 'signalTwo');

    t.is(i, 3, 'disconnectAll does not disconnect unrelated signals');

    i = 0;

    connect(hasSignals, 'signalOne', aFunction);

    connect(hasSignals, 'signalOne', aObject, 'aMethod');

    connect(hasSignals, 'signalTwo', aFunction);

    connect(hasSignals, 'signalTwo', aObject, 'aMethod');

    disconnectAll(hasSignals, 'signalOne', 'signalTwo');

    signal(hasSignals, 'signalOne');

    signal(hasSignals, 'signalTwo');

    t.is(i, 0, 'disconnectAll works with two explicit signals');

    i = 0;

    connect(hasSignals, 'signalOne', aFunction);

    connect(hasSignals, 'signalOne', aObject, 'aMethod');

    connect(hasSignals, 'signalTwo', aFunction);

    connect(hasSignals, 'signalTwo', aObject, 'aMethod');

    disconnectAll(hasSignals, ['signalOne', 'signalTwo']);

    signal(hasSignals, 'signalOne');

    signal(hasSignals, 'signalTwo');

    t.is(i, 0, 'disconnectAll works with two explicit signals as a list');

    i = 0;

    connect(hasSignals, 'signalOne', aFunction);

    connect(hasSignals, 'signalOne', aObject, 'aMethod');

    connect(hasSignals, 'signalTwo', aFunction);

    connect(hasSignals, 'signalTwo', aObject, 'aMethod');

    disconnectAll(hasSignals);

    signal(hasSignals, 'signalOne');

    signal(hasSignals, 'signalTwo');

    t.is(i, 0, 'disconnectAll works with implicit signals');

    i = 0;

	var toggle = function() {

		disconnectAll(hasSignals, 'signalOne');

		connect(hasSignals, 'signalOne', aFunction);

		i++;

};

	connect(hasSignals, 'signalOne', aFunction);

	connect(hasSignals, 'signalTwo', function() { i++; });

	connect(hasSignals, 'signalTwo', toggle);

	connect(hasSignals, 'signalTwo', function() { i++; }); // #147

	connect(hasSignals, 'signalTwo', function() { i++; });

	signal(hasSignals, 'signalTwo');

    t.is(i, 4, 'disconnectAll fired in a signal loop works');

    i = 0;

    disconnectAll('signalOne');

    disconnectAll('signalTwo');

    var testfunc = function () { arguments.callee.count++; };

    testfunc.count = 0;

    var testObj = {

        methOne: function () { this.countOne++; }, countOne: 0,

        methTwo: function () { this.countTwo++; }, countTwo: 0

};

    connect(hasSignals, 'signalOne', testfunc);

    connect(hasSignals, 'signalTwo', testfunc);

    signal(hasSignals, 'signalOne');

    signal(hasSignals, 'signalTwo');

    t.is(testfunc.count, 2, 'disconnectAllTo func precondition');

    disconnectAllTo(testfunc);

    signal(hasSignals, 'signalOne');

    signal(hasSignals, 'signalTwo');

    t.is(testfunc.count, 2, 'disconnectAllTo func');

    connect(hasSignals, 'signalOne', testObj, 'methOne');

    connect(hasSignals, 'signalTwo', testObj, 'methTwo');

    signal(hasSignals, 'signalOne');

    signal(hasSignals, 'signalTwo');

    t.is(testObj.countOne, 1, 'disconnectAllTo obj precondition');

    t.is(testObj.countTwo, 1, 'disconnectAllTo obj precondition');

    disconnectAllTo(testObj);

    signal(hasSignals, 'signalOne');

    signal(hasSignals, 'signalTwo');

    t.is(testObj.countOne, 1, 'disconnectAllTo obj');

    t.is(testObj.countTwo, 1, 'disconnectAllTo obj');

    testObj.countOne = testObj.countTwo = 0;

    connect(hasSignals, 'signalOne', testObj, 'methOne');

    connect(hasSignals, 'signalTwo', testObj, 'methTwo');

    disconnectAllTo(testObj, 'methOne');

    signal(hasSignals, 'signalOne');

    signal(hasSignals, 'signalTwo');

    t.is(testObj.countOne, 0, 'disconnectAllTo obj+str');

    t.is(testObj.countTwo, 1, 'disconnectAllTo obj+str');

    has__Connect = {

          count: 0,

};

    connect(has__Connect, 'signalOne', function() {

        t.fail("__connect__ should have disconnected signal");

});

    t.is(has__Connect.count, 3, '__connect__ is called when it exists');

    signal(has__Connect, 'signalOne');

    has__Disconnect = {

          count: 0,

};

    connect(has__Disconnect, 'signalOne', aFunction);

    connect(has__Disconnect, 'signalTwo', aFunction);

    disconnectAll(has__Disconnect);

    t.is(has__Disconnect.count, 8, '__disconnect__ is called when it exists');

    var events = {};

    var test_ident = connect(events, "test", function() {

        var fail_ident = connect(events, "fail", function () {

            events.failed = true;

});

        disconnect(fail_ident);

        signal(events, "fail");

});

    signal(events, "test");

    t.is(events.failed, undefined, 'disconnected slots do not fire');

    var sink = {f: function (ev) { this.ev = ev; }};

    var src = {};

    bindMethods(sink);

    connect(src, 'signal', sink.f);

    signal(src, 'signal', 'worked');

    t.is(sink.ev, 'worked', 'custom signal does not re-bind methods');

    var lateObj = { fun: function() { this.value = 1; } };

    connect(src, 'signal', lateObj, "fun");

    signal(src, 'signal');

    lateObj.fun = function() { this.value = 2; };

    signal(src, 'signal');

    t.is(lateObj.value, 2, 'connect uses late function binding');

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