95 lines
2.4 KiB
JavaScript
95 lines
2.4 KiB
JavaScript
/**
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* Tests final members
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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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var common = require( './common' ),
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assert = require( 'assert' ),
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builder = common.require( 'class_builder' )
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;
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/**
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* Methods declared as final should not be able to be overridden by subtypes.
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* Simple as that.
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*/
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( function testFinalMethodsCannotBeOverridenBySubtypes()
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{
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var Foo = builder.build(
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{
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'final public foo': function() {},
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} );
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try
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{
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// attempt to override (should fail)
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builder.build( Foo,
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{
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'public foo': function() {},
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} );
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}
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catch ( e )
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{
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assert.ok(
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e.message.search( 'foo' ) !== -1,
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"Final error message contains name of method"
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);
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return;
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}
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assert.fail( 'Should not be able to override final methods' );
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} )();
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/**
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* Due to our static implementation (late static binding), the use of 'final'
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* with properties doesn't make much sense. We have to deal with different
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* problems than languages like Java that truly bind members statically. Consult
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* the documentation for rationale.
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*
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* See also const keyword.
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*/
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( function testFinalKeywordCannotBeUsedWithProperties()
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{
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try
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{
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// attempt to define a 'final' property (should fail)
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builder.build(
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{
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'final public foo': 'bar',
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} );
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}
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catch ( e )
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{
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assert.ok(
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e.message.search( 'foo' ) !== -1,
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"Final property error message contains name of method"
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);
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return;
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}
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assert.fail( "Should not be able to use final keyword with properties" );
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} )();
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