/**

  * 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.ScriptEngine;

 import javax.script.ScriptEngineManager;

 import static org.testng.Assert.fail;

 import org.testng.annotations.AfterClass;

 import org.testng.annotations.BeforeClass;

 import org.testng.annotations.Test;

 /**

  *

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

  */

 public class InstanceTest {

     @Test public void verifyDefaultDoubleValue() throws Exception {

         assertExec(

             "Will be zero",

             Instance.class, "defaultDblValue__D",

             Double.valueOf(0)

         );

     }

     @Test public void verifyStaticMethodCall() throws Exception {

         assertExec(

             "Will be zero",

             InstanceSub.class, "recallDbl__D",

             Double.valueOf(0)

         );

     }

     @Test public void verifyAssignedByteValue() throws Exception {

         assertExec(

             "Will one thirty one",

             Instance.class, "assignedByteValue__B",

             Double.valueOf(31)

         );

     }

     @Test public void noInstOfExposed() throws Exception {

         assertExec(

             "No instOf properties found",

             Instance.class, "noInstOfExposed__I",

             Double.valueOf(0)

         );

     }

     @Test public void noIterablePropsOnObject() throws Exception {

         assertExec(

             "No instOf properties found",

             Instance.class, "props__Ljava_lang_String_2",

             ""

         );

     }

     @Test public void verifyMagicOne() throws Exception {

         assertExec(

             "Should be three and something",

             Instance.class, "magicOne__D",

             Double.valueOf(3.3)

         );

     }

     @Test public void verifyInstanceMethods() throws Exception {

         assertExec(

             "Should be eleven as we invoke overwritten method, plus 44",

             Instance.class, "virtualBytes__I",

             Double.valueOf(55)

         );

     }

     @Test public void verifyInterfaceMethods() throws Exception {

         assertExec(

             "Retruns default value",

             Instance.class, "interfaceBytes__F",

             Double.valueOf(31)

         );

     }

     @Test public void isNull() throws Exception {

         assertExec(

             "Yes, we are instance",

             Instance.class, "isNull__Z",

             Double.valueOf(0.0)

         );

     }

     @Test public void isInstanceOf() throws Exception {

         assertExec(

             "Yes, we are instance",

             Instance.class, "instanceOf__ZI",

             Double.valueOf(1.0), 2

         );

     }

     @Test public void notInstanceOf() throws Exception {

         assertExec(

             "No, we are not an instance",

             Instance.class, "instanceOf__ZI",

             Double.valueOf(0.0), 1

         );

     }

     @Test public void nullInstanceOf() throws Exception {

         assertExec(

             "No, null is not an instance",

             Instance.class, "instanceOf__ZI",

             Double.valueOf(0.0), 0

         );

     }

     @Test public void verifyCastToClass() throws Exception {

         assertExec(

             "Five signals all is good",

             Instance.class, "castsWork__IZ",

             Double.valueOf(5.0), false

         );

     }

     @Test public void verifyCastToInterface() throws Exception {

         assertExec(

             "Five signals all is good",

             Instance.class, "castsWork__IZ",

             Double.valueOf(5.0), true

         );

     }

     @Test public void sharedConstructor() throws Exception {

         assertExec(

             "Constructor of first and 2nd instance should be the same",

             Instance.class, "sharedConstructor__Z",

             Double.valueOf(1.0)

         );

     }

     @Test public void differentConstructor() throws Exception {

         assertExec(

             "Constructor of X and Y should be the different",

             Instance.class, "differentConstructor__Z",

             Double.valueOf(0)

         );

     }

     @Test public void jsObjectIsLikeJavaObject() throws Exception {

         assertExec(

             "JavaScript object is instance of Java Object",

             Instance.class, "iofObject__Z",

             Double.valueOf(1)

         );

     }

     @Test public void jsCallingConvention() throws Exception {

         assertExec(

             "Pointer to 'this' is passed automatically (and not as a first argument)",

             Instance.class, "jscall__I",

             Double.valueOf(31)

         );

     }

     protected String startCompilationWith() {

         return "org/apidesign/vm4brwsr/Instance";

     }

     private static TestVM code;

     @BeforeClass

     public void compileTheCode() throws Exception {

         code = TestVM.compileClass(startCompilationWith());

     }

     @AfterClass

     public static void releaseTheCode() {

         code = null;

     }

     private void assertExec(

         String msg, Class clazz, String method, Object expRes, Object... args

     ) throws Exception {

         code.assertExec(msg, clazz, method, expRes, args);

     }

 }