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 package org.netbeans.html.boot.impl;

 import java.io.Closeable;

 import java.io.Reader;

 import java.net.URL;

 import java.util.Collection;

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

 import static org.testng.Assert.assertFalse;

 import static org.testng.Assert.assertTrue;

 import org.testng.annotations.BeforeMethod;

 import org.testng.annotations.Test;

 public class KeepAliveTest implements Fn.Presenter, Fn.KeepAlive, FindResources {

     private Class<?> jsMethods;

     @Test public void keepAliveIsSetToFalse() throws Exception {

         Closeable c = Fn.activate(this);

         boolean ret = (Boolean)jsMethods.getMethod("checkAllowGC", Object.class).invoke(null, this);

         c.close();

         assertFalse(ret, "keepAlive returns false when the presenter is invoked");

     }    

     @Test public void keepAliveIsPropagated() throws Exception {

         Closeable c = Fn.activate(this);

         boolean ret = (Boolean)jsMethods.getMethod("truth").invoke(null);

         c.close();

         assertTrue(ret, "keepAlive returns true when the presenter is invoked");

     }    

     @BeforeMethod

     public void initClass() throws ClassNotFoundException {

         ClassLoader loader = FnUtils.newLoader(this, this, KeepAliveTest.class.getClassLoader().getParent());

         jsMethods = loader.loadClass(JsMethods.class.getName());

     }

     @Override

     public Fn defineFn(String code, String[] names, final boolean[] keepAlive) {

         return new Fn(this) {

             @Override

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

                 boolean res = true;

                 if (keepAlive != null) {

                     for (int i = 0; i < keepAlive.length; i++) {

                         res &= keepAlive[i];

                     }

                 }

                 return res;

             }

         };

     }

     @Override

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

         throw new UnsupportedOperationException("Never called!");

     }

     @Override

     public void displayPage(URL page, Runnable onPageLoad) {

         throw new UnsupportedOperationException();

     }

     @Override

     public void loadScript(Reader code) throws Exception {

     }

     @Override

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

         URL u = ClassLoader.getSystemClassLoader().getResource(path);

         if (u != null) {

             results.add(u);

         }

     }

 }