158 lines
3.5 KiB
JavaScript
158 lines
3.5 KiB
JavaScript
/**
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* Tests class module object creation
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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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*/
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var common = require( './common' ),
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assert = require( 'assert' ),
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Class = common.require( 'class' );
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assert.ok(
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( Class.extend instanceof Function ),
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"Class module should provide an 'extend' method"
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);
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var Foo = Class.extend(
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{
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value: 'foo',
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});
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assert.ok(
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( Foo instanceof Object ),
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"Extend method creates a new object"
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);
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assert.ok(
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( Class.isClass( Class.extend() ) ),
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"Classes are considered by the system to be classes"
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);
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var inst = new Foo();
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//
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// isClass
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assert.ok(
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( !( Class.isClass( {} ) ) ),
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"Only actual classes are considered to be classes"
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);
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assert.ok(
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!( Class.isClass( inst ) ),
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"Class instances are not considered to be classes (they are objects)"
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);
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//
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// isClassInstance
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assert.ok(
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( Class.isClassInstance( inst ) ),
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"Class instances are considered to be classes instances"
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);
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assert.ok(
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( !( Class.isClassInstance( Foo ) ) ),
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"Classes are not considered to be class instances"
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);
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assert.ok(
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( !( Class.isClassInstance( {} ) ) ),
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"Other objects are not considered to be class instances"
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);
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// only perform check if supported by the engine
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if ( Object.isFrozen )
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{
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assert.equal(
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Object.isFrozen( Foo ),
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true,
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"Generated class should be frozen"
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);
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}
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//
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// isInstanceOf
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assert.ok(
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Class.isInstanceOf( Foo, inst ),
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"Class instance is recognized by Class.isInstanceOf()"
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);
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assert.ok(
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Class.isInstanceOf( Foo, undefined ) === false,
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"Checking instance of undefined will not throw an error"
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);
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assert.ok(
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Class.isInstanceOf( undefined, {} ) === false,
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"Checking for instance of undefined will not throw an error"
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);
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assert.ok(
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!( Class.isInstanceOf( Foo, Foo ) ),
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"Class is not an instance of itself when uninstantiated"
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);
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assert.ok(
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!( Class.isInstanceOf( inst, Foo ) ),
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"Class is not an instance of its instance"
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);
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assert.equal(
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Class.isInstanceOf,
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Class.isA,
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"isA() is an alias for isInstanceOf()"
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);
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assert.ok(
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( ( inst.isInstanceOf instanceof Function )
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&& ( inst.isInstanceOf( Foo ) === true )
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&& ( inst.isInstanceOf( inst ) === false )
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),
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"Class instance contains partially applied isInstanceOf method"
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);
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assert.equal(
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inst.isInstanceOf,
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inst.isA,
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"Class instance contains isA() alias for isInstanceOf() partially applied function"
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);
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// XXX: Ultimately, this will be determined via reflection (at which time we
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// need to determine if we want to let the compiler rename this)
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assert.ok(
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( Foo['__cid'] !== undefined ),
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"Class id available via class"
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);
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assert.ok(
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( Foo.prototype['__cid'] !== undefined ),
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"Class id available via class prototype"
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);
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