81 lines
2.0 KiB
JavaScript
81 lines
2.0 KiB
JavaScript
/**
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* Tests extending of interfaces
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*
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* Copyright (C) 2010 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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* @package test
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*/
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require( './common' );
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var assert = require( 'assert' ),
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Interface = require( 'interface' ),
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abstractMethod = Interface.abstractMethod;
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assert.throws( function()
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{
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Interface.extend(
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{
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// properties (non-methods) are not permitted
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prop: 'not permitted',
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});
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}, Error, "Properties are not permitted within Interface definitions" );
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assert.throws( function()
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{
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Interface.extend(
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{
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// concrete method
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method: function() {}
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});
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}, Error, "Concrete methods are not permitted within Interface definitions" );
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assert.doesNotThrow(
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function()
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{
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Interface.extend(
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{
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method: abstractMethod(),
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});
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},
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Error,
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"Abstract method declarations are allowed within Interface definitions"
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);
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var BaseType = Interface.extend(
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{
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method: abstractMethod(),
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});
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assert.ok(
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( BaseType.prototype.method instanceof Function ),
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"Interface contains defined abstract methods"
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);
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var SubType = Interface.extend( BaseType, {} );
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assert.ok(
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( SubType instanceof BaseType ),
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"Generic interface extend method can extend from other interfaces"
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);
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