/**

  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

  *

  * Copyright 2013-2014 Oracle and/or its affiliates. All rights reserved.

  *

  * Oracle and Java are registered trademarks of Oracle and/or its affiliates.

  * Other names may be trademarks of their respective owners.

  *

  * The contents of this file are subject to the terms of either the GNU

  * General Public License Version 2 only ("GPL") or the Common

  * Development and Distribution License("CDDL") (collectively, the

  * "License"). You may not use this file except in compliance with the

  * License. You can obtain a copy of the License at

  * http://www.netbeans.org/cddl-gplv2.html

  * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the

  * specific language governing permissions and limitations under the

  * License.  When distributing the software, include this License Header

  * Notice in each file and include the License file at

  * nbbuild/licenses/CDDL-GPL-2-CP.  Oracle designates this

  * particular file as subject to the "Classpath" exception as provided

  * by Oracle in the GPL Version 2 section of the License file that

  * accompanied this code. If applicable, add the following below the

  * License Header, with the fields enclosed by brackets [] replaced by

  * your own identifying information:

  * "Portions Copyrighted [year] [name of copyright owner]"

  *

  * Contributor(s):

  *

  * The Original Software is NetBeans. The Initial Developer of the Original

  * Software is Oracle. Portions Copyright 2013-2014 Oracle. All Rights Reserved.

  *

  * If you wish your version of this file to be governed by only the CDDL

  * or only the GPL Version 2, indicate your decision by adding

  * "[Contributor] elects to include this software in this distribution

  * under the [CDDL or GPL Version 2] license." If you do not indicate a

  * single choice of license, a recipient has the option to distribute

  * your version of this file under either the CDDL, the GPL Version 2 or

  * to extend the choice of license to its licensees as provided above.

  * However, if you add GPL Version 2 code and therefore, elected the GPL

  * Version 2 license, then the option applies only if the new code is

  * made subject to such option by the copyright holder.

  */

 package org.netbeans.html.boot.impl;

 import java.io.Closeable;

 import java.io.IOException;

 import java.io.Reader;

 import java.lang.reflect.Method;

 import java.net.URL;

 import java.util.Collection;

 import java.util.Enumeration;

 import net.java.html.js.JavaScriptBody;

 import net.java.html.js.JavaScriptResource;

 import org.netbeans.html.boot.spi.Fn;

 import static org.testng.Assert.assertEquals;

 import org.testng.annotations.Test;

 /**

  *

  * @author Jaroslav Tulach

  */

 @JavaScriptResource("empty.js")

 public class CountFnCreationTest implements Fn.Presenter {

     private int cnt;

     @JavaScriptBody(args = {}, body = "return;")

     public static native void body();

     @Test public void countManyTimes() throws Exception {

         class Res implements FindResources {

             @Override

             public void findResources(String path, Collection<? super URL> results, boolean oneIsEnough) {

                 try {

                     ClassLoader l = CountFnCreationTest.class.getClassLoader();

                     Enumeration<URL> en = l.getResources(path);

                     while (en.hasMoreElements()) {

                         results.add(en.nextElement());

                     }

                 } catch (IOException ex) {

                     throw new IllegalStateException(ex);

                 }

             }

         }

         ClassLoader l = FnUtils.newLoader(new Res(), this, CountFnCreationTest.class.getClassLoader().getParent());

         Method m = l.loadClass(CountFnCreationTest.class.getName()).getMethod("body");

         Closeable c = Fn.activate(this);

         try {

             assertEquals(cnt, 0, "No functions yet");

             m.invoke(null);

             assertEquals(cnt, 1, "One function defined");

             m.invoke(null);

             assertEquals(cnt, 1, "Still one function");

         } finally {

             c.close();

         }

     }

     @Override

     public Fn defineFn(String code, String... names) {

         cnt++;

         return new MyFn(this);

     }

     @Override

     public void displayPage(URL page, Runnable onPageLoad) {

     }

     @Override

     public void loadScript(Reader code) throws Exception {

     }

     private static final class MyFn extends Fn {

         public MyFn(Presenter presenter) {

             super(presenter);

         }

         @Override

         public java.lang.Object invoke(java.lang.Object thiz, java.lang.Object... args) throws Exception {

             return null;

         }

     }

 }