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			441 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			441 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| module( "deferred", {
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| 	teardown: moduleTeardown
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| });
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| 
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| jQuery.each( [ "", " - new operator" ], function( _, withNew ) {
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| 
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| 	function createDeferred( fn ) {
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| 		return withNew ? new jQuery.Deferred( fn ) : jQuery.Deferred( fn );
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| 	}
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| 
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| 	test( "jQuery.Deferred" + withNew, function() {
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| 
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| 		expect( 23 );
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| 
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| 		var defer = createDeferred();
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| 
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| 		strictEqual( defer.pipe, defer.then, "pipe is an alias of then" );
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| 
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| 		createDeferred().resolve().done(function() {
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| 			ok( true, "Success on resolve" );
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| 			strictEqual( this.state(), "resolved", "Deferred is resolved (state)" );
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| 		}).fail(function() {
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| 			ok( false, "Error on resolve" );
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| 		}).always(function() {
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| 			ok( true, "Always callback on resolve" );
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| 		});
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| 
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| 		createDeferred().reject().done(function() {
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| 			ok( false, "Success on reject" );
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| 		}).fail(function() {
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| 			ok( true, "Error on reject" );
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| 			strictEqual( this.state(), "rejected", "Deferred is rejected (state)" );
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| 		}).always(function() {
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| 			ok( true, "Always callback on reject" );
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| 		});
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| 
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| 		createDeferred(function( defer ) {
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| 			ok( this === defer, "Defer passed as this & first argument" );
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| 			this.resolve("done");
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| 		}).done(function( value ) {
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| 			strictEqual( value, "done", "Passed function executed" );
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| 		});
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| 
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| 		createDeferred(function( defer ) {
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| 			var promise = defer.promise(),
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| 				func = function() {},
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| 				funcPromise = defer.promise( func );
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| 			strictEqual( defer.promise(), promise, "promise is always the same" );
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| 			strictEqual( funcPromise, func, "non objects get extended" );
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| 			jQuery.each( promise, function( key, value ) {
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| 				if ( !jQuery.isFunction( promise[ key ] ) ) {
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| 					ok( false, key + " is a function (" + jQuery.type( promise[ key ] ) + ")" );
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| 				}
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| 				if ( promise[ key ] !== func[ key ] ) {
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| 					strictEqual( func[ key ], promise[ key ], key + " is the same" );
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| 				}
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| 			});
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| 		});
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| 
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| 		jQuery.expandedEach = jQuery.each;
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| 		jQuery.expandedEach( "resolve reject".split(" "), function( _, change ) {
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| 			createDeferred(function( defer ) {
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| 				strictEqual( defer.state(), "pending", "pending after creation" );
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| 				var checked = 0;
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| 				defer.progress(function( value ) {
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| 					strictEqual( value, checked, "Progress: right value (" + value + ") received" );
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| 				});
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| 				for ( checked = 0; checked < 3; checked++ ) {
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| 					defer.notify( checked );
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| 				}
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| 				strictEqual( defer.state(), "pending", "pending after notification" );
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| 				defer[ change ]();
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| 				notStrictEqual( defer.state(), "pending", "not pending after " + change );
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| 				defer.notify();
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| 			});
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| 		});
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| 	});
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| });
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| 
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| 
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| test( "jQuery.Deferred - chainability", function() {
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| 
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| 	var defer = jQuery.Deferred();
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| 
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| 	expect( 10 );
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| 
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| 	jQuery.expandedEach = jQuery.each;
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| 	jQuery.expandedEach( "resolve reject notify resolveWith rejectWith notifyWith done fail progress always".split(" "), function( _, method ) {
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| 		var object = {
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| 			m: defer[ method ]
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| 		};
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| 		strictEqual( object.m(), object, method + " is chainable" );
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| 	});
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| });
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| 
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| test( "jQuery.Deferred.then - filtering (done)", function() {
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| 
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| 	expect( 4 );
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| 
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| 	var value1, value2, value3,
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| 		defer = jQuery.Deferred(),
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| 		piped = defer.then(function( a, b ) {
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| 			return a * b;
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| 		});
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| 
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| 	piped.done(function( result ) {
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| 		value3 = result;
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| 	});
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| 
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| 	defer.done(function( a, b ) {
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| 		value1 = a;
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| 		value2 = b;
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| 	});
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| 
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| 	defer.resolve( 2, 3 );
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| 
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| 	strictEqual( value1, 2, "first resolve value ok" );
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| 	strictEqual( value2, 3, "second resolve value ok" );
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| 	strictEqual( value3, 6, "result of filter ok" );
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| 
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| 	jQuery.Deferred().reject().then(function() {
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| 		ok( false, "then should not be called on reject" );
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| 	});
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| 
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| 	jQuery.Deferred().resolve().then( jQuery.noop ).done(function( value ) {
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| 		strictEqual( value, undefined, "then done callback can return undefined/null" );
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| 	});
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| });
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| 
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| test( "jQuery.Deferred.then - filtering (fail)", function() {
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| 
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| 	expect( 4 );
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| 
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| 	var value1, value2, value3,
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| 		defer = jQuery.Deferred(),
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| 		piped = defer.then( null, function( a, b ) {
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| 			return a * b;
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| 		});
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| 
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| 	piped.fail(function( result ) {
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| 		value3 = result;
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| 	});
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| 
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| 	defer.fail(function( a, b ) {
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| 		value1 = a;
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| 		value2 = b;
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| 	});
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| 
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| 	defer.reject( 2, 3 );
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| 
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| 	strictEqual( value1, 2, "first reject value ok" );
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| 	strictEqual( value2, 3, "second reject value ok" );
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| 	strictEqual( value3, 6, "result of filter ok" );
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| 
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| 	jQuery.Deferred().resolve().then( null, function() {
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| 		ok( false, "then should not be called on resolve" );
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| 	});
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| 
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| 	jQuery.Deferred().reject().then( null, jQuery.noop ).fail(function( value ) {
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| 		strictEqual( value, undefined, "then fail callback can return undefined/null" );
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| 	});
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| });
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| 
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| test( "jQuery.Deferred.then - filtering (progress)", function() {
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| 
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| 	expect( 3 );
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| 
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| 	var value1, value2, value3,
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| 		defer = jQuery.Deferred(),
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| 		piped = defer.then( null, null, function( a, b ) {
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| 			return a * b;
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| 		});
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| 
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| 	piped.progress(function( result ) {
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| 		value3 = result;
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| 	});
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| 
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| 	defer.progress(function( a, b ) {
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| 		value1 = a;
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| 		value2 = b;
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| 	});
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| 
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| 	defer.notify( 2, 3 );
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| 
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| 	strictEqual( value1, 2, "first progress value ok" );
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| 	strictEqual( value2, 3, "second progress value ok" );
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| 	strictEqual( value3, 6, "result of filter ok" );
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| });
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| 
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| test( "jQuery.Deferred.then - deferred (done)", function() {
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| 
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| 	expect( 3 );
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| 
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| 	var value1, value2, value3,
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| 		defer = jQuery.Deferred(),
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| 		piped = defer.then(function( a, b ) {
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| 			return jQuery.Deferred(function( defer ) {
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| 				defer.reject( a * b );
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| 			});
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| 		});
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| 
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| 	piped.fail(function( result ) {
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| 		value3 = result;
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| 	});
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| 
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| 	defer.done(function( a, b ) {
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| 		value1 = a;
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| 		value2 = b;
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| 	});
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| 
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| 	defer.resolve( 2, 3 );
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| 
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| 	strictEqual( value1, 2, "first resolve value ok" );
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| 	strictEqual( value2, 3, "second resolve value ok" );
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| 	strictEqual( value3, 6, "result of filter ok" );
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| });
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| 
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| test( "jQuery.Deferred.then - deferred (fail)", function() {
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| 
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| 	expect( 3 );
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| 
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| 	var value1, value2, value3,
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| 		defer = jQuery.Deferred(),
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| 		piped = defer.then( null, function( a, b ) {
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| 			return jQuery.Deferred(function( defer ) {
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| 				defer.resolve( a * b );
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| 			});
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| 		});
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| 
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| 	piped.done(function( result ) {
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| 		value3 = result;
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| 	});
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| 
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| 	defer.fail(function( a, b ) {
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| 		value1 = a;
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| 		value2 = b;
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| 	});
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| 
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| 	defer.reject( 2, 3 );
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| 
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| 	strictEqual( value1, 2, "first reject value ok" );
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| 	strictEqual( value2, 3, "second reject value ok" );
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| 	strictEqual( value3, 6, "result of filter ok" );
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| });
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| 
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| test( "jQuery.Deferred.then - deferred (progress)", function() {
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| 
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| 	expect( 3 );
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| 
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| 	var value1, value2, value3,
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| 		defer = jQuery.Deferred(),
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| 		piped = defer.then( null, null, function( a, b ) {
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| 			return jQuery.Deferred(function( defer ) {
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| 				defer.resolve( a * b );
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| 			});
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| 		});
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| 
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| 	piped.done(function( result ) {
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| 		value3 = result;
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| 	});
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| 
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| 	defer.progress(function( a, b ) {
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| 		value1 = a;
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| 		value2 = b;
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| 	});
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| 
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| 	defer.notify( 2, 3 );
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| 
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| 	strictEqual( value1, 2, "first progress value ok" );
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| 	strictEqual( value2, 3, "second progress value ok" );
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| 	strictEqual( value3, 6, "result of filter ok" );
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| });
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| 
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| test( "jQuery.Deferred.then - context", function() {
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| 
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| 	expect( 7 );
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| 
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| 	var context = {};
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| 
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| 	jQuery.Deferred().resolveWith( context, [ 2 ] ).then(function( value ) {
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| 		return value * 3;
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| 	}).done(function( value ) {
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| 		strictEqual( this, context, "custom context correctly propagated" );
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| 		strictEqual( value, 6, "proper value received" );
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| 	});
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| 
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| 	jQuery.Deferred().resolve().then(function() {
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| 		return jQuery.Deferred().resolveWith(context);
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| 	}).done(function() {
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| 		strictEqual( this, context, "custom context of returned deferred correctly propagated" );
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| 	});
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| 
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| 	var defer = jQuery.Deferred(),
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| 		piped = defer.then(function( value ) {
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| 			return value * 3;
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| 		});
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| 
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| 	defer.resolve( 2 );
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| 
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| 	piped.done(function( value ) {
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| 		strictEqual( this, piped, "default context gets updated to latest promise in the chain" );
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| 		strictEqual( value, 6, "proper value received" );
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| 	});
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| 
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| 	var defer2 = jQuery.Deferred(),
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| 		piped2 = defer2.then();
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| 
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| 	defer2.resolve( 2 );
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| 
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| 	piped2.done(function( value ) {
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| 		strictEqual( this, piped2, "default context gets updated to latest promise in the chain (without passing function)" );
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| 		strictEqual( value, 2, "proper value received (without passing function)" );
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| 	});
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| });
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| 
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| test( "jQuery.when", function() {
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| 
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| 	expect( 34 );
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| 
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| 	// Some other objects
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| 	jQuery.each({
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| 
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| 		"an empty string": "",
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| 		"a non-empty string": "some string",
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| 		"zero": 0,
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| 		"a number other than zero": 1,
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| 		"true": true,
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| 		"false": false,
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| 		"null": null,
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| 		"undefined": undefined,
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| 		"a plain object": {}
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| 
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| 	}, function( message, value ) {
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| 
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| 		ok(
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| 			jQuery.isFunction(
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| 				jQuery.when( value ).done(function( resolveValue ) {
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| 					strictEqual( this, window, "Context is the global object with " + message );
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| 					strictEqual( resolveValue, value, "Test the promise was resolved with " + message );
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| 				}).promise
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| 			),
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| 			"Test " + message + " triggers the creation of a new Promise"
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| 		);
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| 
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| 	} );
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| 
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| 	ok(
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| 		jQuery.isFunction(
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| 			jQuery.when().done(function( resolveValue ) {
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| 				strictEqual( this, window, "Test the promise was resolved with window as its context" );
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| 				strictEqual( resolveValue, undefined, "Test the promise was resolved with no parameter" );
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| 			}).promise
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| 		),
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| 		"Test calling when with no parameter triggers the creation of a new Promise"
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| 	);
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| 
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| 	var context = {};
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| 
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| 	jQuery.when( jQuery.Deferred().resolveWith( context ) ).done(function() {
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| 		strictEqual( this, context, "when( promise ) propagates context" );
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| 	});
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| 
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| 	var cache;
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| 
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| 	jQuery.each([ 1, 2, 3 ], function( k, i ) {
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| 
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| 		jQuery.when( cache || jQuery.Deferred(function() {
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| 				this.resolve( i );
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| 			})
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| 		).done(function( value ) {
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| 
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| 			strictEqual( value, 1, "Function executed" + ( i > 1 ? " only once" : "" ) );
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| 			cache = value;
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| 		});
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| 
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| 	});
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| });
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| 
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| test( "jQuery.when - joined", function() {
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| 
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| 	expect( 119 );
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| 
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| 	var deferreds = {
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| 			value: 1,
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| 			success: jQuery.Deferred().resolve( 1 ),
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| 			error: jQuery.Deferred().reject( 0 ),
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| 			futureSuccess: jQuery.Deferred().notify( true ),
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| 			futureError: jQuery.Deferred().notify( true ),
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| 			notify: jQuery.Deferred().notify( true )
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| 		},
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| 		willSucceed = {
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| 			value: true,
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| 			success: true,
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| 			futureSuccess: true
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| 		},
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| 		willError = {
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| 			error: true,
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| 			futureError: true
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| 		},
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| 		willNotify = {
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| 			futureSuccess: true,
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| 			futureError: true,
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| 			notify: true
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| 		};
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| 
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| 	jQuery.each( deferreds, function( id1, defer1 ) {
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| 		jQuery.each( deferreds, function( id2, defer2 ) {
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| 			var shouldResolve = willSucceed[ id1 ] && willSucceed[ id2 ],
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| 				shouldError = willError[ id1 ] || willError[ id2 ],
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| 				shouldNotify = willNotify[ id1 ] || willNotify[ id2 ],
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| 				expected = shouldResolve ? [ 1, 1 ] : [ 0, undefined ],
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| 				expectedNotify = shouldNotify && [ willNotify[ id1 ], willNotify[ id2 ] ],
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| 				code = id1 + "/" + id2,
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| 				context1 = defer1 && jQuery.isFunction( defer1.promise ) ? defer1.promise() : undefined,
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| 				context2 = defer2 && jQuery.isFunction( defer2.promise ) ? defer2.promise() : undefined;
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| 
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| 			jQuery.when( defer1, defer2 ).done(function( a, b ) {
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| 				if ( shouldResolve ) {
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| 					deepEqual( [ a, b ], expected, code + " => resolve" );
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| 					strictEqual( this[ 0 ], context1, code + " => first context OK" );
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| 					strictEqual( this[ 1 ], context2, code + " => second context OK" );
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| 				} else {
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| 					ok( false,  code + " => resolve" );
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| 				}
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| 			}).fail(function( a, b ) {
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| 				if ( shouldError ) {
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| 					deepEqual( [ a, b ], expected, code + " => reject" );
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| 				} else {
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| 					ok( false, code + " => reject" );
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| 				}
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| 			}).progress(function( a, b ) {
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| 				deepEqual( [ a, b ], expectedNotify, code + " => progress" );
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| 				strictEqual( this[ 0 ], expectedNotify[ 0 ] ? context1 : undefined, code + " => first context OK" );
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| 				strictEqual( this[ 1 ], expectedNotify[ 1 ] ? context2 : undefined, code + " => second context OK" );
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| 			});
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| 		});
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| 	});
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| 	deferreds.futureSuccess.resolve( 1 );
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| 	deferreds.futureError.reject( 0 );
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| });
 |