/**

  * 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.bck2brwsr.vmtest.impl;

 import java.io.File;

 import java.io.FileWriter;

 import java.io.IOException;

 import java.lang.reflect.Constructor;

 import java.lang.reflect.InvocationTargetException;

 import java.lang.reflect.Method;

 import java.util.Map;

 import java.util.WeakHashMap;

 import org.apidesign.bck2brwsr.launcher.Launcher;

 import org.apidesign.bck2brwsr.launcher.MethodInvocation;

 import org.testng.ITest;

 import org.testng.annotations.Test;

 /**

  *

  * @author Jaroslav Tulach <jtulach@netbeans.org>

  */

 public final class Bck2BrwsrCase implements ITest {

     private final Method m;

     private final Launcher l;

     private final String type;

     private final boolean fail;

     Object value;

     private static final Map<Class, Object[]> compiled = new WeakHashMap<>();

     private Object inst;

     Bck2BrwsrCase(Method m, String type, Launcher l, boolean fail) {

         this.l = l;

         this.m = m;

         this.type = type;

         this.fail = fail;

     }

     @Test(groups = "run")

     public void executeCode() throws Throwable {

         if (l != null) {

             MethodInvocation c = l.invokeMethod(m.getDeclaringClass(), m.getName());

             String res = c.toString();

             value = res;

             if (fail) {

                 int idx = res.indexOf(':');

                 if (idx >= 0) {

                     Class<? extends Throwable> thrwbl = null;

                     try {

                         Class<?> exCls = Class.forName(res.substring(0, idx));

                         if (Throwable.class.isAssignableFrom(exCls)) {

                             thrwbl = exCls.asSubclass(Throwable.class);

                         }

                     } catch (Exception ex) {

                         // ignore

                     }

                     if (thrwbl != null) {

                         Throwable t = null;

                         try {

                             for (Constructor<?> cnstr : thrwbl.getConstructors()) {

                                 if (cnstr.getParameterTypes().length == 1 && cnstr.getParameterTypes()[0].isAssignableFrom(String.class)) {

                                     t = (Throwable) cnstr.newInstance(res.substring(idx + 1));

                                     break;

                                 }

                             }

                         } catch (Throwable ex) {

                             t = thrwbl.newInstance().initCause(ex);

                         }

                         if (t == null) {

                             t = thrwbl.newInstance().initCause(new Exception(res.substring(idx)));

                         }

                         throw t;

                     }

                     throw new AssertionError(res);

                 }

             }

         } else {

             try {

                 value = m.invoke(m.getDeclaringClass().newInstance());

             } catch (InvocationTargetException ex) {

                 Throwable t = ex.getTargetException();

                 value = t.getClass().getName() + ":" + t.getMessage();

             }

         }

     }

     @Override

     public String getTestName() {

         return m.getName() + "[" + typeName() + "]";

     }

     final String typeName() {

         return type;

     }

     static void dumpJS(StringBuilder sb, Bck2BrwsrCase c) throws IOException {

         File f = File.createTempFile(c.m.getName(), ".js");

         try (final FileWriter w = new FileWriter(f)) {

             w.append(c.l.toString());

         }

         sb.append("Path: ").append(f.getPath());

     }

 }