99 lines
2.8 KiB
JavaScript
99 lines
2.8 KiB
JavaScript
/**
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* Tests final members
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*
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* Copyright (C) 2014 Mike Gerwitz
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*
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* This file is part of GNU ease.js.
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*
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* ease.js is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU 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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require( 'common' ).testCase(
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{
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caseSetUp: function()
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{
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this.Class = this.require( 'class' );
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this.FinalClass = this.require( 'class_final' );
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},
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/**
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* Ensure that FinalClass properly forwards data to create a new Class.
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*/
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'Final classes are valid classes': function()
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{
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this.assertOk( this.Class.isClass( this.FinalClass( {} ) ),
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"Final classes should generate valid classes"
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);
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},
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/**
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* When a class is declared as final, it should prevent it from ever
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* being extended. Ever.
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*/
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'Final classes cannot be extended': function()
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{
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try
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{
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// this should fail
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this.FinalClass( 'Foo', {} ).extend( {} );
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}
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catch ( e )
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{
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this.assertOk(
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e.message.search( 'Foo' ) !== -1,
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"Final class error message should contain name of class"
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);
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return;
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}
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this.assertFail( "Should not be able to extend final classes" );
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},
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/**
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* Ensure we're able to create final classes by extending existing
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* classes.
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*/
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'Can create final subtypes': function()
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{
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// XXX: clean up this mess.
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var builder = this.require( 'ClassBuilder' )(
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this.require( 'MemberBuilder' )(),
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this.require( 'VisibilityObjectFactoryFactory' )
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.fromEnvironment()
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);
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var Foo = builder.build( {} ),
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FinalNamed = this.FinalClass( 'FinalNamed' ).extend( Foo, {} ),
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FinalAnon = this.FinalClass.extend( Foo, {} )
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;
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// named (TODO: check error message)
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this.assertThrows( function()
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{
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FinalNamed.extend( {} );
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}, Error, "Cannot extend final named subtype" );
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// anonymous (TODO: check error message)
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this.assertThrows( function()
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{
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FinalAnon.extend( {} );
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}, Error, "Cannot extend final anonymous subtype" );
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},
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} );
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