/**

 * 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.Invocable;

import javax.script.ScriptException;

import org.testng.annotations.BeforeClass;

import static org.testng.Assert.*;

import org.testng.annotations.Test;

/**

 *

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

 */

public class NumberTest {

    @Test public void integerFromString() throws Exception {

        assertExec("Can convert string to integer", "java_lang_Integer_parseIntILjava_lang_String",

            Double.valueOf(333), "333"

        );

    }

    @Test public void doubleFromString() throws Exception {

        assertExec("Can convert string to double", "java_lang_Double_parseDoubleDLjava_lang_String",

            Double.valueOf(33.3), "33.3"

        );

    }

    @Test public void autoboxDouble() throws Exception {

        assertExec("Autoboxing of doubles is OK", "org_apidesign_vm4brwsr_Numbers_autoboxDblToStringLjava_lang_String",

            "3.3"

        );

    }

    private static CharSequence codeSeq;

    private static Invocable code;

    @BeforeClass

    public void compileTheCode() throws Exception {

        if (codeSeq == null) {

            StringBuilder sb = new StringBuilder();

            code = StaticMethodTest.compileClass(sb, "org/apidesign/vm4brwsr/Numbers");

            codeSeq = sb;

        }

    }

    private static void assertExec(

        String msg, String methodName, Object expRes, Object... args) throws Exception {

        Object ret = null;

        try {

            ret = code.invokeFunction(methodName, args);

        } catch (ScriptException ex) {

            fail("Execution failed in\n" + codeSeq, ex);

        } catch (NoSuchMethodException ex) {

            fail("Cannot find method in\n" + codeSeq, ex);

        }

        if (ret == null && expRes == null) {

            return;

        }

        if (expRes.equals(ret)) {

            return;

        }

        assertEquals(ret, expRes, msg + "was: " + ret + "\n" + codeSeq);

    }

}