The Tor Browser / file revision

 // Any copyright is dedicated to the Public Domain.

 // http://creativecommons.org/licenses/publicdomain/

 // Test off-thread parsing.

 load(libdir + 'asserts.js');

 if (workerThreadCount() === 0)

   quit(0);

 offThreadCompileScript('Math.sin(Math.PI/2)');

 assertEq(runOffThreadScript(), 1);

 offThreadCompileScript('a string which cannot be reduced to the start symbol');

 assertThrowsInstanceOf(runOffThreadScript, SyntaxError);

 offThreadCompileScript('smerg;');

 assertThrowsInstanceOf(runOffThreadScript, ReferenceError);

 offThreadCompileScript('throw "blerg";');

 assertThrowsValue(runOffThreadScript, 'blerg');