/**

  * Back 2 Browser Bytecode Translator

  * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>

  *

  * This program 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, version 2 of the License.

  *

  * 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. Look for COPYING file in the top folder.

  * If not, see http://opensource.org/licenses/GPL-2.0.

  */

 package org.apidesign.vm4brwsr;

 import javax.script.Invocable;

 import javax.script.ScriptException;

 import static org.testng.Assert.*;

 class TestUtils {

     static Object execCode(Invocable code, CharSequence codeSeq,

         String msg, Class<?> clazz, String method, Object expRes, Object... args) 

             throws Exception

     {

         Object ret = null;

         try {

             ret = code.invokeFunction("bck2brwsr");

             ret = code.invokeMethod(ret, "loadClass", clazz.getName());

             ret = code.invokeMethod(ret, method, args);

         } catch (ScriptException ex) {

             fail("Execution failed in " + StaticMethodTest.dumpJS(codeSeq), ex);

         } catch (NoSuchMethodException ex) {

             fail("Cannot find method in " + StaticMethodTest.dumpJS(codeSeq), ex);

         }

         if (ret == null && expRes == null) {

             return null;

         }

         if (expRes != null && expRes.equals(ret)) {

             return null;

         }

         if (expRes instanceof Number) {

             // in case of Long it is necessary convert it to number

             // since the Long is represented by two numbers in JavaScript

             try {

                 ret = code.invokeMethod(ret, "toFP");

                 ret = code.invokeFunction("Number", ret);

             } catch (ScriptException ex) {

                 fail("Conversion to number failed in " + StaticMethodTest.dumpJS(codeSeq), ex);

             } catch (NoSuchMethodException ex) {

                 fail("Cannot find global Number(x) function in " + StaticMethodTest.dumpJS(codeSeq), ex);

             }

         }

         return ret;

     }

 }