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easejs/test/CombinePreEs5Test.js

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/**
* Tests combined file, attempting to emulate a pre-ECMAScript5 environment.
*
* Copyright (C) 2011, 2013 Mike Gerwitz
*
* This file is part of GNU ease.js.
*
* ease.js is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Node.js is required to run this case.
*/
require( 'common' ).testCase(
{
caseSetUp: function()
{
this.fs = require( 'fs' );
this.vm = require( 'vm' );
},
setUp: function()
{
// sandbox in which combined script will be run
this.sandbox = this.vm.createContext( {
// stub document.write() so we don't blow up
document: { write: function() {} },
runTests: null,
} );
},
/**
* This will ensure fallbacks will work properly on older browsers, such
* as IE6--8.
*
* This is /not/ an alternative to running the test suite in the browser
* of your choice; it is intended to catch errors early, to ensure bugs
* are not committed between browser tests.
*/
'All test cases run in a poorly-emulated pre-ES5 environment':
function()
{
var file = 'ease-full.js';
// attempt to read the combined file
try
{
var data = this.fs.readFileSync(
( __dirname + '/../build/' + file ),
'ascii'
);
}
catch ( e )
{
this.skip();
}
// Let's take this bitch back in time (this is not a complete list,
// but satisfies what we need).
//
// It is important to note that we prepend this to the script that
// we'll be executing, because the script will be executed within a
// new scope. Any clobbering we do in our scope will not affect it,
// nor will any clobbering we do to it affect us.
data = "delete Object.defineProperty;" +
"delete Array.prototype.forEach;" +
data
;
// run the script (if this fails to compile, the generated code is
// invalid)
this.vm.runInNewContext( data, this.sandbox );
// cross your fingers
this.sandbox.easejs.runTests();
this.assertOk( true );
},
} );