Added some beginning test cases for abstract classes (will currently fail)
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/**
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* Tests abstract classes
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*
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* Copyright (C) 2010 Mike Gerwitz
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*
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* This file is part of ease.js.
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*
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* ease.js is free software: you can redistribute it and/or modify it under the
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* terms of the GNU Lesser General Public License as published by the Free
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* Software Foundation, either version 3 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
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* for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* @author Mike Gerwitz
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* @package test
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*/
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// don't perform these tests if getters/setters are unsupported
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if ( Object.prototype.__defineGetter__ === undefined )
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{
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return;
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}
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require( './common' );
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var assert = require( 'assert' ),
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Class = require( 'class' ),
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abstractMethod = require( 'class' ).abstractMethod;
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// not abstract
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var Foo = Class.extend( {} );
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// abstract
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var AbstractFoo = Class.extend(
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{
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method: abstractMethod( function( one, two, three ){} ),
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second: abstractMethod(),
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});
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// still abstract (didn't provide a concrete implementation of both abstract
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// methods)
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var SubAbstractFoo = AbstractFoo.extend(
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{
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second: function()
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{
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},
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});
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// concrete
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var ConcreteFoo = AbstractFoo.extend(
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{
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method: function( one, two, three )
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{
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},
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second: function()
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{
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},
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});
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assert.ok(
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( Foo.isAbstract instanceof Function ),
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"All classes should have an isAbstract() method"
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);
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assert.equals(
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Foo.isAbstract(),
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false,
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"Classes are not abstract if they contain no abstract methods"
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);
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assert.equals(
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AbstractFoo.isAbstract(),
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true,
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"Classes should be considered abstract if they contain any abstract methods"
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);
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assert.equals(
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SubAbstractFoo.isAbstract(),
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true,
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"Subtypes of abstract types are abstract if they don't provide a " +
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"concrete implementation for all abstract methods"
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);
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assert.equals(
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ConcreteFoo.isAbstract(),
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false,
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"Subtypes of abstract types are not abstract if they provide concrete " +
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"implementations of all abstract methods"
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);
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