/**

 * 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 static org.testng.Assert.*;

import org.testng.annotations.AfterClass;

import org.testng.annotations.BeforeClass;

import org.testng.annotations.Test;

/** Checks the basic behavior of the translator.

 *

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

 */

public class StaticMethodTest {

    @Test public void threePlusFour() throws Exception {

        assertExec(

            "Should be seven", 

            StaticMethod.class, "sum__III", 

            Double.valueOf(7), 

            3, 4

        );

    }

    @Test public void cast() throws Exception {

        assertExec(

            "Length is four", 

            StaticMethod.class, "castString__ILjava_lang_Object_2", 

            Double.valueOf(4), 

            "Ahoj"

        );

    }

    @Test public void checkReallyInitializedValues() throws Exception {

        assertExec(

            "Return true", 

            StaticMethod.class, "isNull__Z", 

            Double.valueOf(1)

        );

    }

    @Test public void powerOfThree() throws Exception {

        assertExec(

            "Should be nine", 

            StaticMethod.class, "power__FF", 

            Double.valueOf(9),

            3.0f

        );

    }

    @Test public void minusOne() throws Exception {

        assertExec(

            "Should be minus one", 

            StaticMethod.class, "minusOne__I", 

            Double.valueOf(-1)

        );

    }

    @Test public void doubleWithoutLong() throws Exception {

        assertExec(

            "Should be two",

            StaticMethod.class, "minus__DDJ", 

            Double.valueOf(2),

            3.0d, 1l

        );

    }

    @Test public void rintNegativeUp() throws Exception {

        final double cnts = -453904.634;

        assertExec(

            "Should round up to end with 5",

            Math.class, "rint__DD", 

            -453905.0, cnts

        );

    }

    @Test public void rintNegativeDown() throws Exception {

        final double cnts = -453904.434;

        assertExec(

            "Should round up to end with 4",

            Math.class, "rint__DD", 

            -453904.0, cnts

        );

    }

    @Test public void rintPositiveUp() throws Exception {

        final double cnts = 453904.634;

        assertExec(

            "Should round up to end with 5",

            Math.class, "rint__DD", 

            453905.0, cnts

        );

    }

    @Test public void rintPositiveDown() throws Exception {

        final double cnts = 453904.434;

        assertExec(

            "Should round up to end with 4",

            Math.class, "rint__DD", 

            453904.0, cnts

        );

    }

    @Test public void rintOneHalf() throws Exception {

        final double cnts = 1.5;

        assertExec(

            "Should round up to end with 2",

            Math.class, "rint__DD", 

            2.0, cnts

        );

    }

    @Test public void rintNegativeOneHalf() throws Exception {

        final double cnts = -1.5;

        assertExec(

            "Should round up to end with 2",

            Math.class, "rint__DD", 

            -2.0, cnts

        );

    }

    @Test public void rintTwoAndHalf() throws Exception {

        final double cnts = 2.5;

        assertExec(

            "Should round up to end with 2",

            Math.class, "rint__DD", 

            2.0, cnts

        );

    }

    @Test public void rintNegativeTwoOneHalf() throws Exception {

        final double cnts = -2.5;

        assertExec(

            "Should round up to end with 2",

            Math.class, "rint__DD", 

            -2.0, cnts

        );

    }

    @Test public void ieeeReminder1() throws Exception {

        assertExec(

            "Same result 1",

            Math.class, "IEEEremainder__DDD", 

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

        );

    }

    @Test public void ieeeReminder2() throws Exception {

        assertExec(

            "Same result 1",

            Math.class, "IEEEremainder__DDD", 

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

        );

    }

    @Test public void divAndRound() throws Exception {

        assertExec(

            "Should be rounded to one",

            StaticMethod.class, "div__IBD", 

            Double.valueOf(1),

            3, 3.75

        );

    }

    @Test public void inflaterInit() throws Exception {

        assertExec(

            "Down and minus",

            StaticMethod.class, "initInflater__IIZ",

            Double.valueOf(-9),

            10, true

        );

    }

    @Test public void inflaterInitNoNeg() throws Exception {

        assertExec(

            "One up",

            StaticMethod.class, "initInflater__IIZ",

            Double.valueOf(11),

            10, false

        );

    }

    @Test public void mixedMethodFourParams() throws Exception {

        assertExec(

            "Should be two",

            StaticMethod.class, "mix__IIJBD", 

            Double.valueOf(20),

            2, 10l, 5, 2.0

        );

    }

    @Test public void factRec() throws Exception {

        assertExec(

            "Factorial of 5 is 120",

            StaticMethod.class, "factRec__JI", 

            Double.valueOf(120),

            5

        );

    }

    @Test public void factIter() throws Exception {

        assertExec(

            "Factorial of 5 is 120",

            StaticMethod.class, "factIter__JI", 

            Double.valueOf(120),

            5

        );

    }

    @Test public void xor() throws Exception {

        assertExec(

            "Xor is 4",

            StaticMethod.class, "xor__JIJ",

            Double.valueOf(4),

            7,

            3

        );

    }

    @Test public void collectionToString() throws Exception {

        String exp = StaticMethod.toStringArr();

        assertExec(

            "0 to 4",

            StaticMethod.class, "toStringArr__Ljava_lang_String_2",

            exp

        );

    }

    @Test public void or() throws Exception {

        assertExec(

            "Or will be 7",

            StaticMethod.class, "orOrAnd__JZII",

            Double.valueOf(7),

            true,

            4,

            3

        );

    }

    @Test public void nullCheck() throws Exception {

        assertExec(

            "Returns nothing",

            StaticMethod.class, "none__Ljava_lang_Object_2II",

            null, 1, 3

        );

    }

    @Test public void and() throws Exception {

        assertExec(

            "And will be 3",

            StaticMethod.class, "orOrAnd__JZII",

            Double.valueOf(3),

            false,

            7,

            3

        );

    }

    @Test public void inc4() throws Exception {

        assertExec(

            "It will be 4",

            StaticMethod.class, "inc4__I",

            Double.valueOf(4)

        );

    }

    @Test public void shiftLeftInJava() throws Exception {

        int res = StaticMethod.shiftLeft(1, 8);

        assertEquals(res, 256);

    }

    @Test public void shiftLeftInJS() throws Exception {

        assertExec(

            "Setting 9th bit",

            StaticMethod.class, "shiftLeft__III",

            Double.valueOf(256),

            1, 8

        );

    }

    @Test public void shiftRightInJava() throws Exception {

        int res = StaticMethod.shiftArithmRight(-8, 3, true);

        assertEquals(res, -1);

    }

    @Test public void shiftRightInJS() throws Exception {

        assertExec(

            "Get -1",

            StaticMethod.class, "shiftArithmRight__IIIZ",

            Double.valueOf(-1),

            -8, 3, true

        );

    }

    @Test public void unsignedShiftRightInJava() throws Exception {

        int res = StaticMethod.shiftArithmRight(8, 3, false);

        assertEquals(res, 1);

    }

    @Test public void unsignedShiftRightInJS() throws Exception {

        assertExec(

            "Get -1",

            StaticMethod.class, "shiftArithmRight__IIIZ",

            Double.valueOf(1),

            8, 3, false

        );

    }

    @Test public void javaScriptBody() throws Exception {

        assertExec(

            "JavaScript string",

            StaticMethod.class, "i2s__Ljava_lang_String_2II",

            "333",

            330, 3

        );

    }

    @Test public void switchJarda() throws Exception {

        assertExec(

            "The expected value",

            StaticMethod.class, "swtch__Ljava_lang_String_2I",

            "Jarda",

            0

        );

    }

    @Test public void switchDarda() throws Exception {

        assertExec(

            "The expected value",

            StaticMethod.class, "swtch__Ljava_lang_String_2I",

            "Darda",

            1

        );

    }

    @Test public void switchParda() throws Exception {

        assertExec(

            "The expected value",

            StaticMethod.class, "swtch2__Ljava_lang_String_2I",

            "Parda",

            22

        );

    }

    @Test public void switchMarda() throws Exception {

        assertExec(

            "The expected value",

            StaticMethod.class, "swtch__Ljava_lang_String_2I",

            "Marda",

            -433

        );

    }

    @Test public void checkNullCast() throws Exception {

        assertExec("Null can be cast to any type",

            StaticMethod.class, "castNull__Ljava_lang_String_2Z", 

            null, true

        );

    }

    @Test public void stringConstantIsCopied() throws Exception {

        assertExec("String constants are copied between class pools",

            StaticMethod.class, "helloWorldLength__ILjava_lang_String_2", 

            17, "Jardo"

        );

    }

    private static TestVM code;

    @BeforeClass 

    public static void compileTheCode() throws Exception {

        StringBuilder sb = new StringBuilder();

        code = TestVM.compileClass(sb, "org/apidesign/vm4brwsr/StaticMethod");

    }

    @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);

    }

}