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/**
* Tests class builder visibility implementation
*
* See also: test-class-visibility.js
*
* Copyright (C) 2010 Mike Gerwitz
*
* This file is part of ease.js.
*
* ease.js is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @author Mike Gerwitz
* @package test
*/
var common = require( './common' ),
assert = require( 'assert' ),
util = common.require( 'util' ),
builder = common.require( 'ClassBuilder' )(
common.require( 'MemberBuilder' )(),
common.require( 'VisibilityObjectFactoryFactory' ).fromEnvironment()
)
;
/**
* As discussed in GH#15, there's a bit of an issue when passing around 'this'
* from within a method. For example, passing 'this' as an argument or invoking
* a method with it as the context will effectively defeat encapsulation.
* Unfortunately, there's really no way around that. Maybe a more elegant
* solution will arise in the future. For now, not likely.
*
* We need to provide a means to reference the actual instance. __inst is that
* solution.
*/
( function testSelfPropertyReferencesInstanceRatherThanPropObj()
{
var result = null
ref = null,
foo = builder.build( {
'public __construct': function()
{
// rather than returning, assign to external var so that we can
// rest assured that the return value wasn't manipulated
result = this.__inst;
ref = this;
}
} )();
assert.deepEqual( result, foo,
"this.__inst returns reference to actual instance"
);
// the property should be read-only
if ( util.definePropertyFallback() === false )
{
assert.equal(
Object.getOwnPropertyDescriptor( ref, '__inst' ).writable,
false,
"this.__inst is not writable"
);
}
} )();