define( [ "jquery", "ui/widget" ], function( $ ) { test( "$.widget.extend()", function() { expect( 27 ); var ret, empty, optionsWithLength, optionsWithDate, myKlass, customObject, optionsWithCustomObject, nullUndef, target, recursive, obj, input, output, settings = { xnumber1: 5, xnumber2: 7, xstring1: "peter", xstring2: "pan" }, options = { xnumber2: 1, xstring2: "x", xxx: "newstring" }, optionsCopy = { xnumber2: 1, xstring2: "x", xxx: "newstring" }, merged = { xnumber1: 5, xnumber2: 1, xstring1: "peter", xstring2: "x", xxx: "newstring" }, deep1 = { foo: { bar: true } }, deep2 = { foo: { baz: true }, foo2: document }, deep2copy = { foo: { baz: true }, foo2: document }, deepmerged = { foo: { bar: true, baz: true }, foo2: document }, arr = [1, 2, 3], nestedarray = { arr: arr }, defaults = { xnumber1: 5, xnumber2: 7, xstring1: "peter", xstring2: "pan" }, defaultsCopy = { xnumber1: 5, xnumber2: 7, xstring1: "peter", xstring2: "pan" }, options1 = { xnumber2: 1, xstring2: "x" }, options1Copy = { xnumber2: 1, xstring2: "x" }, options2 = { xstring2: "xx", xxx: "newstringx" }, options2Copy = { xstring2: "xx", xxx: "newstringx" }, merged2 = { xnumber1: 5, xnumber2: 1, xstring1: "peter", xstring2: "xx", xxx: "newstringx" }; $.widget.extend( settings, options ); deepEqual( settings, merged, "Check if extended: settings must be extended" ); deepEqual( options, optionsCopy, "Check if not modified: options must not be modified" ); $.widget.extend( deep1, deep2 ); deepEqual( deep1.foo, deepmerged.foo, "Check if foo: settings must be extended" ); deepEqual( deep2.foo, deep2copy.foo, "Check if not deep2: options must not be modified" ); equal( deep1.foo2, document, "Make sure that a deep clone was not attempted on the document" ); strictEqual( $.widget.extend({}, nestedarray).arr, arr, "Don't clone arrays" ); ok( $.isPlainObject( $.widget.extend({ arr: arr }, { arr: {} }).arr ), "Cloned object heve to be an plain object" ); empty = {}; optionsWithLength = { foo: { length: -1 } }; $.widget.extend( empty, optionsWithLength ); deepEqual( empty.foo, optionsWithLength.foo, "The length property must copy correctly" ); empty = {}; optionsWithDate = { foo: { date: new Date() } }; $.widget.extend( empty, optionsWithDate ); deepEqual( empty.foo, optionsWithDate.foo, "Dates copy correctly" ); myKlass = function() {}; customObject = new myKlass(); optionsWithCustomObject = { foo: { date: customObject } }; empty = {}; $.widget.extend( empty, optionsWithCustomObject ); strictEqual( empty.foo.date, customObject, "Custom objects copy correctly (no methods)" ); // Makes the class a little more realistic myKlass.prototype = { someMethod: function(){} }; empty = {}; $.widget.extend( empty, optionsWithCustomObject ); strictEqual( empty.foo.date, customObject, "Custom objects copy correctly" ); ret = $.widget.extend({ foo: 4 }, { foo: Number(5) } ); equal( ret.foo, 5, "Wrapped numbers copy correctly" ); nullUndef = $.widget.extend( {}, options, { xnumber2: null } ); strictEqual( nullUndef.xnumber2, null, "Check to make sure null values are copied"); nullUndef = $.widget.extend( {}, options, { xnumber2: undefined } ); strictEqual( nullUndef.xnumber2, options.xnumber2, "Check to make sure undefined values are not copied"); nullUndef = $.widget.extend( {}, options, { xnumber0: null } ); strictEqual( nullUndef.xnumber0, null, "Check to make sure null values are inserted"); target = {}; recursive = { foo:target, bar:5 }; $.widget.extend( target, recursive ); deepEqual( target, { foo: {}, bar: 5 }, "Check to make sure a recursive obj doesn't go never-ending loop by not copying it over" ); ret = $.widget.extend( { foo: [] }, { foo: [0] } ); // 1907 equal( ret.foo.length, 1, "Check to make sure a value with coersion 'false' copies over when necessary to fix #1907" ); ret = $.widget.extend( { foo: "1,2,3" }, { foo: [ 1, 2, 3 ] } ); deepEqual( ret.foo, [ 1, 2, 3 ], "Properly extend a string to array." ); ret = $.widget.extend( { foo: "1,2,3" }, { foo: { to: "object" } } ); deepEqual( ret.foo, { to: "object" }, "Properly extend a string to object." ); ret = $.widget.extend( { foo: "bar" }, { foo: null } ); strictEqual( ret.foo, null, "Make sure a null value doesn't crash with deep extend, for #1908" ); obj = { foo: null }; $.widget.extend( obj, { foo:"notnull" } ); equal( obj.foo, "notnull", "Make sure a null value can be overwritten" ); settings = $.widget.extend( {}, defaults, options1, options2 ); deepEqual( settings, merged2, "Check if extended: settings must be extended" ); deepEqual( defaults, defaultsCopy, "Check if not modified: options1 must not be modified" ); deepEqual( options1, options1Copy, "Check if not modified: options1 must not be modified" ); deepEqual( options2, options2Copy, "Check if not modified: options2 must not be modified" ); input = { key: [ 1, 2, 3 ] }; output = $.widget.extend( {}, input ); deepEqual( input, output, "don't clone arrays" ); input.key[0] = 10; deepEqual( input, output, "don't clone arrays" ); }); } );