75 lines
2.1 KiB
JavaScript
75 lines
2.1 KiB
JavaScript
/**
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* Tests interfaces
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*
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* Copyright (C) 2010,2011 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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require( 'common' ).testCase(
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{
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setUp: function()
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{
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this.FooType = this.require( 'interface' ).extend();
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},
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/**
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* Interface.extend(), like Class.extend(), should result in a new
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* interface.
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*/
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'Interface extend method creates a new interface object': function()
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{
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this.assertOk(
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( typeof this.FooType === 'function' ),
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"Interface extend method creates a new interface object"
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);
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},
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/**
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* Interfaces describe an API; they do not have any actual implementation.
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* It does not make sense to instantiate them.
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*/
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'Interfaces cannot be instantiated': function()
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{
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this.assertThrows( function()
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{
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new this.FooType();
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}, Error, "Should not be able to instantiate interfaces" );
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},
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/**
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* To prevent altering the interface after it is defined, the resulting
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* object should be frozen, if supported by the environment.
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*/
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'Generated interface should be frozen': function()
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{
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// only perform the assertion if supported by our environment
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if ( Object.isFrozen )
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{
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this.assertEqual(
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Object.isFrozen( this.FooType ),
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true,
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"Generated interface object should be frozen"
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);
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}
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},
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} );
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