73 lines
2.1 KiB
JavaScript
73 lines
2.1 KiB
JavaScript
/**
|
|
* Tests interfaces
|
|
*
|
|
* Copyright (C) 2011, 2013 Free Software Foundation, Inc.
|
|
*
|
|
* This file is part of GNU ease.js.
|
|
*
|
|
* ease.js is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
require( 'common' ).testCase(
|
|
{
|
|
setUp: function()
|
|
{
|
|
this.FooType = this.require( 'interface' ).extend();
|
|
},
|
|
|
|
|
|
/**
|
|
* Interface.extend(), like Class.extend(), should result in a new
|
|
* interface.
|
|
*/
|
|
'Interface extend method creates a new interface object': function()
|
|
{
|
|
this.assertOk(
|
|
( typeof this.FooType === 'function' ),
|
|
"Interface extend method creates a new interface object"
|
|
);
|
|
},
|
|
|
|
|
|
/**
|
|
* Interfaces describe an API; they do not have any actual implementation.
|
|
* It does not make sense to instantiate them.
|
|
*/
|
|
'Interfaces cannot be instantiated': function()
|
|
{
|
|
this.assertThrows( function()
|
|
{
|
|
new this.FooType();
|
|
}, Error, "Should not be able to instantiate interfaces" );
|
|
},
|
|
|
|
|
|
/**
|
|
* To prevent altering the interface after it is defined, the resulting
|
|
* object should be frozen, if supported by the environment.
|
|
*/
|
|
'Generated interface should be frozen': function()
|
|
{
|
|
// only perform the assertion if supported by our environment
|
|
if ( Object.isFrozen )
|
|
{
|
|
this.assertEqual(
|
|
Object.isFrozen( this.FooType ),
|
|
true,
|
|
"Generated interface object should be frozen"
|
|
);
|
|
}
|
|
},
|
|
} );
|