1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/launcher/fx/src/test/java/org/apidesign/bck2brwsr/launcher/fximpl/JsClassLoaderTest.java	Mon Jun 10 18:12:38 2013 +0200
     1.3 @@ -0,0 +1,106 @@
     1.4 +/**
     1.5 + * Back 2 Browser Bytecode Translator
     1.6 + * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
     1.7 + *
     1.8 + * This program is free software: you can redistribute it and/or modify
     1.9 + * it under the terms of the GNU General Public License as published by
    1.10 + * the Free Software Foundation, version 2 of the License.
    1.11 + *
    1.12 + * This program is distributed in the hope that it will be useful,
    1.13 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
    1.14 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    1.15 + * GNU General Public License for more details.
    1.16 + *
    1.17 + * You should have received a copy of the GNU General Public License
    1.18 + * along with this program. Look for COPYING file in the top folder.
    1.19 + * If not, see http://opensource.org/licenses/GPL-2.0.
    1.20 + */
    1.21 +package org.apidesign.bck2brwsr.launcher.fximpl;
    1.22 +
    1.23 +import java.lang.reflect.InvocationTargetException;
    1.24 +import java.lang.reflect.Method;
    1.25 +import java.net.URL;
    1.26 +import javax.script.Invocable;
    1.27 +import javax.script.ScriptEngine;
    1.28 +import javax.script.ScriptEngineManager;
    1.29 +import javax.script.ScriptException;
    1.30 +import static org.testng.Assert.*;
    1.31 +import org.testng.annotations.BeforeClass;
    1.32 +import org.testng.annotations.Test;
    1.33 +
    1.34 +/**
    1.35 + *
    1.36 + * @author Jaroslav Tulach <jaroslav.tulach@apidesign.org>
    1.37 + */
    1.38 +public class JsClassLoaderTest {
    1.39 +    private static ClassLoader loader;
    1.40 +    private static Class<?> methodClass;
    1.41 +    
    1.42 +    public JsClassLoaderTest() {
    1.43 +    }
    1.44 +
    1.45 +    @BeforeClass
    1.46 +    public static void setUpClass() throws Exception {
    1.47 +        ScriptEngineManager sem = new ScriptEngineManager();
    1.48 +        final ScriptEngine eng = sem.getEngineByMimeType("text/javascript");
    1.49 +        
    1.50 +        URL my = JsClassLoaderTest.class.getProtectionDomain().getCodeSource().getLocation();
    1.51 +        ClassLoader parent = JsClassLoaderTest.class.getClassLoader().getParent();
    1.52 +        loader = new JsClassLoader(new URL[] { my }, parent) {
    1.53 +            @Override
    1.54 +            protected JsClassLoader.Fn defineFn(String code, String... names) {
    1.55 +                StringBuilder sb = new StringBuilder();
    1.56 +                sb.append("(function() {");
    1.57 +                sb.append("var r = {};");
    1.58 +                sb.append("r.fn = function(");
    1.59 +                String sep = "";
    1.60 +                for (String n : names) {
    1.61 +                    sb.append(sep);
    1.62 +                    sb.append(n);
    1.63 +                    sep = ", ";
    1.64 +                }
    1.65 +                sb.append(") {");
    1.66 +                sb.append(code);
    1.67 +                sb.append("};");
    1.68 +                sb.append("return r;");
    1.69 +                sb.append("})()");
    1.70 +                try {
    1.71 +                    final Object val = eng.eval(sb.toString());
    1.72 +                    return new JsClassLoader.Fn() {
    1.73 +                        @Override
    1.74 +                        public Object invoke(Object... args) throws Exception {
    1.75 +                            Invocable inv = (Invocable)eng;
    1.76 +                            return inv.invokeMethod(val, "fn", args);
    1.77 +                        }
    1.78 +                    };
    1.79 +                } catch (ScriptException ex) {
    1.80 +                    throw new LinkageError("Can't parse: " + sb, ex);
    1.81 +                }
    1.82 +            }
    1.83 +        };
    1.84 +        
    1.85 +        methodClass = loader.loadClass(JsMethods.class.getName());
    1.86 +    }
    1.87 +    
    1.88 +    @Test public void noParamMethod() throws Throwable {
    1.89 +        Method plus = methodClass.getMethod("fortyTwo");
    1.90 +        try {
    1.91 +            final Object val = plus.invoke(null);
    1.92 +            assertTrue(val instanceof Number, "A number returned " + val);
    1.93 +            assertEquals(((Number)val).intValue(), 42);
    1.94 +        } catch (InvocationTargetException ex) {
    1.95 +            throw ex.getTargetException();
    1.96 +        }
    1.97 +    }
    1.98 +    /*
    1.99 +    @Test public void testExecuteScript() throws Throwable {
   1.100 +        Method plus = methodClass.getMethod("plus", int.class, int.class);
   1.101 +        try {
   1.102 +            assertEquals(plus.invoke(null, 10, 20), 30);
   1.103 +        } catch (InvocationTargetException ex) {
   1.104 +            throw ex.getTargetException();
   1.105 +        }
   1.106 +    }
   1.107 +    */
   1.108 +
   1.109 +}
   1.110 \ No newline at end of file