/**

 * 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.ScriptException;

import static org.testng.Assert.*;

import org.testng.annotations.AfterClass;

import org.testng.annotations.BeforeClass;

import org.testng.annotations.Test;

/**

 *

 * @author Tomas Zezula <tzezula@netbeans.org>

 */

public class ExceptionsTest {

    @Test

    public void verifyMethodWithTryCatchNoThrow() throws Exception {

            assertExec(

                    "No throw",

                    Exceptions.class,

                    "methodWithTryCatchNoThrow__I",

                    new Double(1.0));

    }

    @Test

    public void catchJavaScriptStringAsThrowable() throws Exception {

        assertExec(

            "Throw hello!",

            Exceptions.class,

            "catchThrowableCatchesAll__Ljava_lang_String_2",

            "Hello!"

        );

    }

    @Test

    public void verifyMethodWithTryCatchThrow() throws Exception {

            assertExec(

                    "Throw",

                    Exceptions.class,

                    "methodWithTryCatchThrow__I",

                    new Double(2.0));

    }

    @Test public void createObject() throws Exception {

        assertExec("Object created", Exceptions.class, 

            "newInstance__Ljava_lang_String_2Ljava_lang_String_2",

            "java.lang.Object",

            "java.lang.Object"

        );

    }

    @Test public void createFloatFails() throws Exception {

        assertExec("Float not created", Exceptions.class, 

            "newInstance__Ljava_lang_String_2Ljava_lang_String_2",

            "java.lang.Float",

            "java.lang.Float"

        );

    }

    @Test public void createUnknownFails() throws Exception {

        assertExec("Object created", Exceptions.class, 

            "newInstance__Ljava_lang_String_2Ljava_lang_String_2",

            "CNFE:org.apidesign.Unknown",

            "org.apidesign.Unknown"

        );

    }

    @Test public void testThreeCalls() throws Exception {

        Object clazz = code.loadClass("loadClass", Exceptions.class.getName());

        String method = "readCounter__ILjava_lang_String_2";

        try {

            Object ret = code.invokeMethod(clazz, method, "org.apidesign.Unknown");

            fail("We expect an CNFE!");

        } catch (ScriptException scriptException) {

            // script exception should be OK

        }

        {

            // 2nd invocation

            Object ret = code.invokeMethod(clazz, method, "java.lang.String");

            assertTrue(ret instanceof Number, "Is number: " + ret);

            assertEquals(((Number)ret).doubleValue(), 2.0);

        }

        {

            // 3rd invocation

            Object ret = code.invokeMethod(clazz, method, "java.lang.Integer");

            assertTrue(ret instanceof Number, "Is number: " + ret);

            assertEquals(((Number)ret).doubleValue(), 3.0);

        }

    }

    private static TestVM code;

    @BeforeClass 

    public void compileTheCode() throws Exception {

        code = TestVM.compileClass("org/apidesign/vm4brwsr/Exceptions");

    }

    @AfterClass

    public static void releaseTheCode() {

        code = null;

    }

    private static void assertExec(String msg, Class clazz, String method, Object expRes, Object... args) throws Exception {

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

    }

}