117 lines
2.7 KiB
JavaScript
117 lines
2.7 KiB
JavaScript
/**
|
|
* Tests extending of interfaces
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
require( './common' );
|
|
|
|
var assert = require( 'assert' ),
|
|
Interface = require( '../lib/interface' ),
|
|
abstractMethod = Interface.abstractMethod;
|
|
|
|
|
|
assert.throws( function()
|
|
{
|
|
Interface.extend(
|
|
{
|
|
// properties (non-methods) are not permitted
|
|
prop: 'not permitted',
|
|
});
|
|
}, Error, "Properties are not permitted within Interface definitions" );
|
|
|
|
assert.throws( function()
|
|
{
|
|
Interface.extend(
|
|
{
|
|
// concrete method
|
|
method: function() {}
|
|
});
|
|
}, Error, "Concrete methods are not permitted within Interface definitions" );
|
|
|
|
assert.doesNotThrow(
|
|
function()
|
|
{
|
|
Interface.extend(
|
|
{
|
|
method: abstractMethod(),
|
|
});
|
|
},
|
|
Error,
|
|
"Abstract method declarations are allowed within Interface definitions"
|
|
);
|
|
|
|
|
|
var BaseType = Interface.extend(
|
|
{
|
|
method: abstractMethod(),
|
|
});
|
|
|
|
assert.ok(
|
|
( BaseType.prototype.method instanceof Function ),
|
|
"Interface contains defined abstract methods"
|
|
);
|
|
|
|
|
|
var SubType = Interface.extend( BaseType,
|
|
{
|
|
second: abstractMethod(),
|
|
});
|
|
|
|
assert.ok(
|
|
( new SubType() instanceof BaseType ),
|
|
"Generic interface extend method can extend from other interfaces"
|
|
);
|
|
|
|
assert.ok(
|
|
( SubType.prototype.method === BaseType.prototype.method ),
|
|
"Interface subtypes inherit abstract methods"
|
|
);
|
|
|
|
assert.ok(
|
|
( SubType.prototype.second instanceof Function ),
|
|
"Interfaces can be extended with additional abstract methods"
|
|
);
|
|
|
|
|
|
assert.ok(
|
|
( BaseType.extend instanceof Function ),
|
|
"Interface contains extend method"
|
|
);
|
|
|
|
|
|
var SubType2 = BaseType.extend(
|
|
{
|
|
second: abstractMethod(),
|
|
});
|
|
|
|
assert.ok(
|
|
( new SubType2 instanceof BaseType ),
|
|
"Interface extend method can extend interfaces"
|
|
);
|
|
|
|
assert.ok(
|
|
( SubType2.prototype.second instanceof Function ),
|
|
"Interfaces can be extended with additional abstract methods using " +
|
|
"shorthand extend method"
|
|
);
|
|
|