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easejs/test/test-class-implement.js

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JavaScript

/**
* Tests class interface implement method
*
* 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' ),
Class = common.require( 'class' ),
Interface = common.require( 'interface' );
var Type = Interface.extend( {
'abstract foo': [],
});
var Type2 = Interface.extend( {
'abstract foo2': [],
});
assert.ok(
( Class.implement instanceof Function ),
"Class provides method to implement interfaces"
);
var Foo = {},
PlainFoo = Class.extend();
assert.ok(
( PlainFoo.implemented instanceof Array ),
"Class contains empty list of implemented interfaces if " +
"none are implemented"
);
assert.doesNotThrow( function()
{
Foo = Class.implement( Type, Type2 );
}, Error, "Class can implement interfaces" );
assert.ok(
( ( Foo.implemented[ 0 ] === Type )
&& ( Foo.implemented[ 1 ] === Type2 )
),
"Class contains list of implemented interfaces"
);
assert.ok(
( ( Foo.prototype.foo instanceof Function )
&& ( Foo.prototype.foo2 instanceof Function )
),
"Abstract methods are copied into the new class prototype"
);