102 lines
2.8 KiB
JavaScript
102 lines
2.8 KiB
JavaScript
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/**
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* Tests the Warning prototype
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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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Warning = common.require( 'warn' ).Warning
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;
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/**
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* Warning's prototype should be Error to ensure instanceof() checks work
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* properly
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*/
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( function testWarningIsAvailableAndHasErrorAsPrototype()
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{
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assert.ok( ( Warning.prototype instanceof Error ),
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"Warning should be an instance of Error"
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);
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} )();
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/**
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* Just as with the other Error classes, as well as all ease.js classes, the
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* 'new' keyword should be optional when instantiating the class
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*/
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( function testNewKeywordIsNotRequiredForInstantiation()
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{
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assert.ok( Warning( Error( '' ) ) instanceof Warning,
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"'new' keyword should not be necessary to instantiate Warning"
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);
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} )();
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/**
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* Warning message should be taken from the exception passed to it
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*/
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( function testCanWarningMessageIsSetFromWrappedException()
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{
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var err = Error( 'oshit' ),
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warning = Warning( err );
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assert.equal( warning.message, err.message,
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"Warning message should be taken from wrapped exception"
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);
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} )();
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/**
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* The whole point of Warning is to wrap an exception. So, ensure that one is
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* wrapped.
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*/
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( function testThrowsExceptionIfNoExceptionIsWrapped()
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{
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assert.throws( function()
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{
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Warning( /* nothing provided to wrap */ );
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}, TypeError, "Exception should be thrown if no exception is provided" );
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assert.throws( function()
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{
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Warning( 'not an exception' );
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}, TypeError, "Exception should be thrown if given value is not an Error" );
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} )();
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/**
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* We must provide access to the wrapped exception so that it can be properly
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* handled. Warning is only intended to provide additional information so that
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* ease.js may handle it differently than other Error instances.
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*/
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( function testCanRetrieveWrappedException()
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{
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var err = Error( 'foo' ),
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warning = Warning( err );
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assert.deepEqual( err, warning.getError(),
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"Can retrieve wrapped exception"
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);
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} )();
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