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+/**
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+ * @license Copyright (c) 2003-2015, CKSource - Frederico Knabben. All rights reserved.
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+ * For licensing, see LICENSE.md.
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+ */
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+
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+/* global document, Event, MouseEvent */
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+/* bender-tags: core, ui */
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+
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+'use strict';
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+
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+var modules = bender.amd.require( 'utils', 'ui/domemittermixin', 'emittermixin' );
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+var emitter, domEmitter, node;
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+
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+bender.tools.createSinonSandbox();
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+
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+var getEmitterInstance = () => modules.utils.extend( {}, modules.emittermixin );
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+var getDOMEmitterInstance = () => modules.utils.extend( {}, modules[ 'ui/domemittermixin' ] );
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+var getDOMNodeInstance = () => document.createElement( 'div' );
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+
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+function updateEmitterInstance() {
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+ emitter = getEmitterInstance();
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+}
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+
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+function updateDOMEmitterInstance() {
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+ domEmitter = getDOMEmitterInstance();
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+}
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+
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+function updateDOMNodeInstance() {
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+ node = getDOMNodeInstance();
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+}
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+
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+beforeEach( updateEmitterInstance );
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+beforeEach( updateDOMEmitterInstance );
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+beforeEach( updateDOMNodeInstance );
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+
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+describe( 'listenTo', function() {
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+ it( 'should listen to EmitterMixin events', function() {
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+ var spy = bender.sinon.spy();
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+
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+ domEmitter.listenTo( emitter, 'test', spy );
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+ emitter.fire( 'test' );
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+
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+ sinon.assert.calledOnce( spy );
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+ } );
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+
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+ it( 'should listen to native DOM events', function() {
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+ var spy = bender.sinon.spy();
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+
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+ domEmitter.listenTo( node, 'test', spy );
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+
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+ var event = new Event( 'test' );
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+ node.dispatchEvent( event );
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+
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+ sinon.assert.calledOnce( spy );
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+ } );
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+} );
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+
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+describe( 'stopListening', function() {
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+ it( 'should stop listening to a specific event callback', function() {
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+ var spy1 = bender.sinon.spy();
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+ var spy2 = bender.sinon.spy();
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+
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+ domEmitter.listenTo( node, 'event1', spy1 );
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+ domEmitter.listenTo( node, 'event2', spy2 );
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+
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+ node.dispatchEvent( new Event( 'event1' ) );
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+ node.dispatchEvent( new Event( 'event2' ) );
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+
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+ domEmitter.stopListening( node, 'event1', spy1 );
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+
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+ node.dispatchEvent( new Event( 'event1' ) );
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+ node.dispatchEvent( new Event( 'event2' ) );
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+
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+ sinon.assert.calledOnce( spy1 );
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+ sinon.assert.calledTwice( spy2 );
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+ } );
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+
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+ it( 'should stop listening to an specific event', function() {
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+ var spy1a = bender.sinon.spy();
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+ var spy1b = bender.sinon.spy();
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+ var spy2 = bender.sinon.spy();
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+
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+ domEmitter.listenTo( node, 'event1', spy1a );
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+ domEmitter.listenTo( node, 'event1', spy1b );
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+ domEmitter.listenTo( node, 'event2', spy2 );
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+
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+ node.dispatchEvent( new Event( 'event1' ) );
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+ node.dispatchEvent( new Event( 'event2' ) );
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+
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+ sinon.assert.calledOnce( spy1a );
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+ sinon.assert.calledOnce( spy1b );
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+ sinon.assert.calledOnce( spy2 );
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+
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+ domEmitter.stopListening( node, 'event1' );
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+
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+ node.dispatchEvent( new Event( 'event1' ) );
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+ node.dispatchEvent( new Event( 'event2' ) );
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+
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+ sinon.assert.calledOnce( spy1a );
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+ sinon.assert.calledOnce( spy1b );
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+ sinon.assert.calledTwice( spy2 );
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+ } );
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+
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+ it( 'should stop listening to all events from a specific node', function() {
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+ var spy1 = bender.sinon.spy();
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+ var spy2 = bender.sinon.spy();
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+
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+ domEmitter.listenTo( node, 'event1', spy1 );
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+ domEmitter.listenTo( node, 'event2', spy2 );
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+
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+ node.dispatchEvent( new Event( 'event1' ) );
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+ node.dispatchEvent( new Event( 'event2' ) );
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+
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+ domEmitter.stopListening( node );
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+
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+ node.dispatchEvent( new Event( 'event1' ) );
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+ node.dispatchEvent( new Event( 'event2' ) );
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+
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+ sinon.assert.calledOnce( spy1 );
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+ sinon.assert.calledOnce( spy2 );
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+ } );
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+
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+ it( 'should stop listening to everything', function() {
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+ var spy1 = bender.sinon.spy();
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+ var spy2 = bender.sinon.spy();
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+
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+ var node1 = getDOMNodeInstance();
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+ var node2 = getDOMNodeInstance();
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+
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+ domEmitter.listenTo( node1, 'event1', spy1 );
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+ domEmitter.listenTo( node2, 'event2', spy2 );
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+
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+ expect( domEmitter ).to.have.property( '_listeningTo' );
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+
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+ node1.dispatchEvent( new Event( 'event1' ) );
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+ node2.dispatchEvent( new Event( 'event2' ) );
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+
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+ domEmitter.stopListening();
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+
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+ node1.dispatchEvent( new Event( 'event1' ) );
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+ node2.dispatchEvent( new Event( 'event2' ) );
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+
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+ sinon.assert.calledOnce( spy1 );
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+ sinon.assert.calledOnce( spy2 );
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+
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+ expect( domEmitter ).to.not.have.property( '_listeningTo' );
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+ } );
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+
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+ it( 'should not stop other nodes when a non-listened node is provided', function() {
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+ var spy = bender.sinon.spy();
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+
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+ var node1 = getDOMNodeInstance();
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+ var node2 = getDOMNodeInstance();
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+
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+ domEmitter.listenTo( node1, 'test', spy );
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+
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+ domEmitter.stopListening( node2 );
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+
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+ node1.dispatchEvent( new Event( 'test' ) );
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+
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+ sinon.assert.called( spy );
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+ } );
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+
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+ it( 'should pass DOM Event data to the listener', function() {
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+ var spy = bender.sinon.spy();
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+
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+ var node = getDOMNodeInstance();
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+
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+ domEmitter.listenTo( node, 'click', spy );
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+
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+ var mouseEvent = new MouseEvent( 'click', {
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+ screenX: 10,
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+ screenY: 20
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+ } );
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+
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+ node.dispatchEvent( mouseEvent );
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+
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+ sinon.assert.calledOnce( spy );
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+ expect( spy.args[ 0 ][ 1 ] ).to.be.equal( mouseEvent );
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+ } );
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+
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+ it( 'should detach native DOM event listener proxy, specific event', function() {
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+ var spy1a = bender.sinon.spy();
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+ var spy1b = bender.sinon.spy();
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+
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+ domEmitter.listenTo( node, 'test', spy1a );
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+
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+ var proxyEmitter = domEmitter._getProxyEmitter( node );
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+ var spy2 = bender.sinon.spy( proxyEmitter, 'fire' );
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+
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+ node.dispatchEvent( new Event( 'test' ) );
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+
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+ sinon.assert.calledOnce( spy1a );
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+ sinon.assert.calledOnce( spy2 );
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+
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+ domEmitter.stopListening( node, 'test' );
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+ node.dispatchEvent( new Event( 'test' ) );
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+
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+ sinon.assert.calledOnce( spy1a );
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+ sinon.assert.calledOnce( spy2 );
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+
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+ // Attach same event again.
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+ domEmitter.listenTo( node, 'test', spy1b );
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+ node.dispatchEvent( new Event( 'test' ) );
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+
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+ expect( proxyEmitter ).to.be.equal( domEmitter._getProxyEmitter( node ) );
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+
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+ sinon.assert.calledOnce( spy1a );
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+ sinon.assert.calledOnce( spy1b );
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+ sinon.assert.calledTwice( spy2 );
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+ } );
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+
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+ it( 'should detach native DOM event listener proxy, specific callback', function() {
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+ var spy1a = bender.sinon.spy();
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+ var spy1b = bender.sinon.spy();
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+ var spy1c = bender.sinon.spy();
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+
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+ domEmitter.listenTo( node, 'test', spy1a );
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+ domEmitter.listenTo( node, 'test', spy1b );
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+
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+ var proxyEmitter = domEmitter._getProxyEmitter( node );
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+ var spy2 = bender.sinon.spy( proxyEmitter, 'fire' );
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+
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+ node.dispatchEvent( new Event( 'test' ) );
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+
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+ sinon.assert.calledOnce( spy1a );
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+ sinon.assert.calledOnce( spy1b );
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+ sinon.assert.calledOnce( spy2 );
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+
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+ domEmitter.stopListening( node, 'test', spy1a );
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+ node.dispatchEvent( new Event( 'test' ) );
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+
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+ sinon.assert.calledOnce( spy1a );
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+ sinon.assert.calledTwice( spy1b );
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+ sinon.assert.calledTwice( spy2 );
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+
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+ domEmitter.stopListening( node, 'test', spy1b );
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+ node.dispatchEvent( new Event( 'test' ) );
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+
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+ sinon.assert.calledOnce( spy1a );
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+ sinon.assert.calledTwice( spy1b );
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+ sinon.assert.calledTwice( spy2 );
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+
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+ // Attach same event again.
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+ domEmitter.listenTo( node, 'test', spy1c );
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+ node.dispatchEvent( new Event( 'test' ) );
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+
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+ expect( proxyEmitter ).to.be.equal( domEmitter._getProxyEmitter( node ) );
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+
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+ sinon.assert.calledOnce( spy1a );
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+ sinon.assert.calledTwice( spy1b );
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+ sinon.assert.calledOnce( spy1c );
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+ sinon.assert.calledThrice( spy2 );
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+ } );
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+
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+ it( 'should detach native DOM event listener proxy, specific emitter', function() {
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+ var spy1a = bender.sinon.spy();
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+ var spy1b = bender.sinon.spy();
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+ var spy1c = bender.sinon.spy();
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+ var spy1d = bender.sinon.spy();
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+
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+ domEmitter.listenTo( node, 'test1', spy1a );
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+ domEmitter.listenTo( node, 'test2', spy1b );
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+
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+ var proxyEmitter = domEmitter._getProxyEmitter( node );
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+ var spy2 = bender.sinon.spy( proxyEmitter, 'fire' );
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+
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+ node.dispatchEvent( new Event( 'test1' ) );
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+ node.dispatchEvent( new Event( 'test2' ) );
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+
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+ sinon.assert.calledOnce( spy1a );
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+ sinon.assert.calledOnce( spy1b );
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+ sinon.assert.calledTwice( spy2 );
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+
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+ domEmitter.stopListening( node );
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+
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+ node.dispatchEvent( new Event( 'test1' ) );
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+ node.dispatchEvent( new Event( 'test2' ) );
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+
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+ sinon.assert.calledOnce( spy1a );
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+ sinon.assert.calledOnce( spy1b );
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+ sinon.assert.calledTwice( spy2 );
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+
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+ // Attach same event again.
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+ domEmitter.listenTo( node, 'test1', spy1c );
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+ domEmitter.listenTo( node, 'test2', spy1d );
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+
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+ // Old proxy emitter died when stopped listening to the node.
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+ var proxyEmitter2 = domEmitter._getProxyEmitter( node );
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+ var spy3 = bender.sinon.spy( proxyEmitter2, 'fire' );
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+
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+ node.dispatchEvent( new Event( 'test1' ) );
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+ node.dispatchEvent( new Event( 'test2' ) );
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+
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+ expect( proxyEmitter ).to.not.be.equal( proxyEmitter2 );
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+
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+ sinon.assert.calledOnce( spy1a );
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+ sinon.assert.calledOnce( spy1b );
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+ sinon.assert.calledOnce( spy1c );
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+ sinon.assert.calledOnce( spy1d );
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+ sinon.assert.calledTwice( spy2 );
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+ sinon.assert.calledTwice( spy3 );
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+ } );
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+
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+ it( 'should detach native DOM event listener proxy, everything', function() {
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+ var spy1a = bender.sinon.spy();
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+ var spy1b = bender.sinon.spy();
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+ var spy1c = bender.sinon.spy();
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+ var spy1d = bender.sinon.spy();
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+
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+ domEmitter.listenTo( node, 'test1', spy1a );
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+ domEmitter.listenTo( node, 'test2', spy1b );
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+
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+ var proxyEmitter = domEmitter._getProxyEmitter( node );
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+ var spy2 = bender.sinon.spy( proxyEmitter, 'fire' );
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+
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+ node.dispatchEvent( new Event( 'test1' ) );
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+ node.dispatchEvent( new Event( 'test2' ) );
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+
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+ sinon.assert.calledOnce( spy1a );
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+ sinon.assert.calledOnce( spy1b );
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+ sinon.assert.calledTwice( spy2 );
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+
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+ domEmitter.stopListening();
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+
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+ node.dispatchEvent( new Event( 'test1' ) );
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+ node.dispatchEvent( new Event( 'test2' ) );
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+
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+ sinon.assert.calledOnce( spy1a );
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+ sinon.assert.calledOnce( spy1b );
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+ sinon.assert.calledTwice( spy2 );
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+
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+ // Attach same event again.
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+ domEmitter.listenTo( node, 'test1', spy1c );
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+ domEmitter.listenTo( node, 'test2', spy1d );
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+
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+ // Old proxy emitter died when stopped listening to the node.
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+ var proxyEmitter2 = domEmitter._getProxyEmitter( node );
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+ var spy3 = bender.sinon.spy( proxyEmitter2, 'fire' );
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+
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+ node.dispatchEvent( new Event( 'test1' ) );
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+ node.dispatchEvent( new Event( 'test2' ) );
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+
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+ expect( proxyEmitter ).to.not.be.equal( proxyEmitter2 );
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+
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+ sinon.assert.calledOnce( spy1a );
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+ sinon.assert.calledOnce( spy1b );
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+ sinon.assert.calledOnce( spy1c );
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+ sinon.assert.calledOnce( spy1d );
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+ sinon.assert.calledTwice( spy2 );
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+ sinon.assert.calledTwice( spy3 );
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+ } );
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+} );
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