/**

  * 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.IOException;

 import java.lang.reflect.Field;

 import java.lang.reflect.Method;

 import java.util.List;

 import java.util.Locale;

 import javax.tools.Diagnostic;

 import javax.tools.JavaFileObject;

 import static org.testng.Assert.assertEquals;

 import static org.testng.Assert.assertTrue;

 import static org.testng.Assert.fail;

 import org.testng.annotations.Test;

 /**

  *

  * @author Jaroslav Tulach

  */

 public class JavaScriptProcesorTest {

     @Test public void detectCallbackToNonExistingClass() throws IOException {

         String code = "package x.y.z;\n"

             + "import net.java.html.js.JavaScriptBody;\n"

             + "class X {\n"

             + "  @JavaScriptBody(args={\"r\"}, javacall=true, body =\n"

             + "    \"r.@java.lang.Runable::run()();\"\n" // typo

             + "  )\n"

             + "  private static native void callback(Runnable r);\n"

             + "}\n";

         Compile c = Compile.create("", code);

         c.assertErrors();

         c.assertError("java.lang.Runable"); // typo

     }

     @Test public void detectCallbackToNonExistingMethod() throws IOException {

         String code = "package x.y.z;\n"

             + "import net.java.html.js.JavaScriptBody;\n"

             + "class X {\n"

             + "  @JavaScriptBody(args={\"r\"}, javacall=true, body =\n"

             + "    \"r.@java.lang.Runnable::cancel()();\"\n"

             + "  )\n"

             + "  private static native void callback(Runnable r);\n"

             + "}\n";

         Compile c = Compile.create("", code);

         c.assertErrors();

         c.assertError("method cancel");

     }

     @Test public void detectCallbackToNonExistingParams() throws IOException {

         String code = "package x.y.z;\n"

             + "import net.java.html.js.JavaScriptBody;\n"

             + "class X {\n"

             + "  @JavaScriptBody(args={\"r\"}, javacall=true, body =\n"

             + "    \"r.@java.lang.Runnable::run(I)(10);\"\n"

             + "  )\n"

             + "  private static native void callback(Runnable r);\n"

             + "}\n";

         Compile c = Compile.create("", code);

         c.assertErrors();

         c.assertError("wrong parameters: (I)");

     }

     @Test public void objectTypeParamsAreOK() throws IOException {

         String code = "package x.y.z;\n"

             + "import net.java.html.js.JavaScriptBody;\n"

             + "class X {\n"

             + "  @JavaScriptBody(args={\"r\"}, javacall=true, body =\n"

             + "    \"r.@java.lang.Object::equals(Ljava/lang/Object;)(null);\"\n"

             + "  )\n"

             + "  private static native void testEqual(Object r);\n"

             + "}\n";

         Compile c = Compile.create("", code);

         c.assertNoErrors();

     }

     @Test public void misorderNotified() throws IOException {

         String code = "package x.y.z;\n"

             + "import net.java.html.js.JavaScriptBody;\n"

             + "class X {\n"

             + "  @JavaScriptBody(args={\"r\", \"a\", \"b\"}, body =\"\"\n"

             + "  )\n"

             + "  private static native void testEqual(Object p, String q, int r);\n"

             + "}\n";

         Compile c = Compile.create("", code);

         List<Diagnostic<? extends JavaFileObject>> warnings = c.getDiagnostics(Diagnostic.Kind.WARNING);

         assertTrue(warnings.size() >= 1, "There are warnings: " + warnings);

         for (Diagnostic<? extends JavaFileObject> w : warnings) {

             if (w.getMessage(Locale.US).contains("Actual method parameter names and args")) {

                 return;

             }

         }

         fail("Expecting order warning: " + warnings);

     }

     @Test public void needJavaScriptBodyToUseResource() throws IOException {

         String code = "package x.y.z;\n"

             + "import net.java.html.js.JavaScriptResource;\n"

             + "@JavaScriptResource(\"x.html\")\n"

             + "class X {\n"

             + "  private static native void callback(Runnable r);\n"

             + "}\n";

         Compile c = Compile.create("", code);

         c.assertErrors();

         c.assertError("needs @JavaScriptBody");

     }

     @Test public void generatesCallbacksThatReturnObject() throws Exception {

         Class<?> callbacksForTestPkg = Class.forName("org.netbeans.html.boot.impl.$JsCallbacks$");

         Method m = callbacksForTestPkg.getDeclaredMethod("java_lang_Runnable$run$", Runnable.class);

         assertEquals(m.getReturnType(), java.lang.Object.class, "All methods always return object");

     }

     @Test public void hasInstanceField() throws Exception {

         Class<?> callbacksForTestPkg = Class.forName("org.netbeans.html.boot.impl.$JsCallbacks$");

         Field f = callbacksForTestPkg.getDeclaredField("VM");

         f.setAccessible(true);

         assertTrue(callbacksForTestPkg.isInstance(f.get(null)), "Singleton field VM");

     }

 }