/** * @license Copyright (c) 2003-2015, CKSource - Frederico Knabben. All rights reserved. * For licensing, see LICENSE.md. */ /* globals describe, it, expect */ 'use strict'; var modules = bender.amd.require( 'utils' ); describe( 'extend()', function() { it( 'should extend and override', function() { var utils = modules.utils; var target = { a: 1, b: 2 }; var extensions = { a: 'A', c: 3, // Extend by reference (no deep-copy). obj: { a: 1 }, // Extend by reference (no deep-copy). arr: [ 1, 2 ], // Extend by reference. fn: function() {} }; var ret = utils.extend( target, extensions ); expect( target.a ).to.equal( 'A' ); expect( target.b ).to.equal( 2 ); expect( target ).to.have.property( 'c' ).to.equal( 3 ); expect( target ).to.have.property( 'obj' ).to.equal( extensions.obj ); expect( target ).to.have.property( 'arr' ).to.equal( extensions.arr ); expect( target ).to.have.property( 'fn' ).to.equal( extensions.fn ); // "target" should be the return value. expect( ret ).to.equal( target ); } ); it( 'should not be touched by non-objects', function() { var utils = modules.utils; var target = { a: 1 }; expect( utils.extend( target, function() {} ) ).to.equal( target ); expect( utils.extend( target, 1 ) ).to.equal( target ); expect( utils.extend( target, 'a' ) ).to.equal( target ); expect( utils.extend( target, true ) ).to.equal( target ); expect( utils.extend( target, undefined ) ).to.equal( target ); expect( utils.extend( target, [] ) ).to.equal( target ); expect( utils.extend( target, Date.now() ) ).to.equal( target ); expect( utils.extend( target ) ).to.equal( target ); // None of the above calls should have touched "target". expect( target ).to.have.property( 'a' ).to.equal( 1 ); expect( Object.getOwnPropertyNames( target ).length ).to.equal( 1 ); } ); it( 'should extend by several params in order', function() { var utils = modules.utils; var target = { a: 0, b: 0 }; var ext1 = { b: 1, c: 1 }; var ext2 = { c: 2, d: 2 }; utils.extend( target, ext1, ext2 ); expect( target ).to.have.property( 'a' ).to.equal( 0 ); expect( target ).to.have.property( 'b' ).to.equal( 1 ); expect( target ).to.have.property( 'c' ).to.equal( 2 ); expect( target ).to.have.property( 'd' ).to.equal( 2 ); } ); } ); describe( 'isFunction()', function() { it( 'should be true for functions only', function() { var utils = modules.utils; var f1 = function() { }; /* jshint -W054 */ // The Function constructor is a form of eval var f2 = new Function( '' ); /* jshint +W054 */ expect( utils.isFunction( f1 ) ).to.be.true(); expect( utils.isFunction( f2 ) ).to.be.true(); expect( utils.isFunction( 1 ) ).to.be.false(); expect( utils.isFunction( 'a' ) ).to.be.false(); expect( utils.isFunction( true ) ).to.be.false(); expect( utils.isFunction( undefined ) ).to.be.false(); expect( utils.isFunction( [] ) ).to.be.false(); expect( utils.isFunction( {} ) ).to.be.false(); expect( utils.isFunction( Date.now() ) ).to.be.false(); } ); } ); describe( 'isObject()', function() { it( 'should be true for pure objects only', function() { var utils = modules.utils; var f1 = function() { }; /* jshint -W054 */ // The Function constructor is a form of eval var f2 = new Function( '' ); /* jshint +W054 */ expect( utils.isObject( {} ) ).to.be.true(); expect( utils.isObject( [] ) ).to.be.true(); expect( utils.isObject( 1 ) ).to.be.false(); expect( utils.isObject( 'a' ) ).to.be.false(); expect( utils.isObject( true ) ).to.be.false(); expect( utils.isObject( undefined ) ).to.be.false(); expect( utils.isObject( Date.now() ) ).to.be.false(); expect( utils.isObject( f1 ) ).to.be.false(); expect( utils.isObject( f2 ) ).to.be.false(); expect( utils.isObject( null ) ).to.be.false(); } ); } );