/**

 * Back 2 Browser Bytecode Translator

 * Copyright (C) 2012-2015 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 org.testng.annotations.AfterClass;

import org.testng.annotations.BeforeClass;

import org.testng.annotations.Test;

/** Checks behavior on Math class.

 *

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

 */

public class MathTest {

    @Test public void rintNegativeUp() throws Exception {

        final double cnts = -453904.634;

        assertExec("Should round up to end with 5", mathClass(), "rint__DD", 

            -453905.0, cnts

        );

    }

    protected Class<?> mathClass() {

        return Math.class;

    }

    @Test public void rintNegativeDown() throws Exception {

        final double cnts = -453904.434;

        assertExec("Should round up to end with 4", mathClass(), "rint__DD", 

            -453904.0, cnts

        );

    }

    @Test public void rintPositiveUp() throws Exception {

        final double cnts = 453904.634;

        assertExec("Should round up to end with 5", mathClass(), "rint__DD", 

            453905.0, cnts

        );

    }

    @Test public void rintPositiveDown() throws Exception {

        final double cnts = 453904.434;

        assertExec("Should round up to end with 4", mathClass(), "rint__DD", 

            453904.0, cnts

        );

    }

    @Test public void rintOneHalf() throws Exception {

        final double cnts = 1.5;

        assertExec("Should round up to end with 2", mathClass(), "rint__DD", 

            2.0, cnts

        );

    }

    @Test public void rintNegativeOneHalf() throws Exception {

        final double cnts = -1.5;

        assertExec("Should round up to end with 2", mathClass(), "rint__DD", 

            -2.0, cnts

        );

    }

    @Test public void rintTwoAndHalf() throws Exception {

        final double cnts = 2.5;

        assertExec("Should round up to end with 2", mathClass(), "rint__DD", 

            2.0, cnts

        );

    }

    @Test public void rintNegativeTwoOneHalf() throws Exception {

        final double cnts = -2.5;

        assertExec("Should round up to end with 2", mathClass(), "rint__DD", 

            -2.0, cnts

        );

    }

    @Test public void ieeeReminder1() throws Exception {

        assertExec("Same result 1", mathClass(), "IEEEremainder__DDD", 

            Math.IEEEremainder(10.0, 4.5), 10.0, 4.5

        );

    }

    @Test public void ieeeReminder2() throws Exception {

        assertExec("Same result 1", mathClass(), "IEEEremainder__DDD", 

            Math.IEEEremainder(Integer.MAX_VALUE, -4.5), Integer.MAX_VALUE, -4.5

        );

    }

    private static TestVM code;

    @BeforeClass 

    public static void compileTheCode() throws Exception {

        StringBuilder sb = new StringBuilder();

        code = TestVM.compileClass(sb);

    }

    @AfterClass

    public static void releaseTheCode() {

        code = null;

    }

    private void assertExec(

        String msg, Class<?> clazz, String method, 

        Object ret, Object... args

    ) throws Exception {

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

    }

}