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/*

  @test %I% %E%

  @bug 6315717

  @summary verifies that InputEvent.getMaskForButton() returns the same values as in InputEvent.BUTTON_DOWN_MASK

  @author Andrei Dmitriev : area=awt.event

  @run main CheckGetMaskForButton

*/

import java.awt.*;

import java.awt.event.InputEvent;

import java.lang.reflect.*;

import java.security.AccessController;

import java.security.PrivilegedAction;

public class CheckGetMaskForButton{

    static Robot robot;

    public static void main(String []s){

        System.out.println("Number Of Buttons = "+ MouseInfo.getNumberOfButtons());

        CheckGetMaskForButton f = new CheckGetMaskForButton();

        int [] buttonMasksViaAPI = new int[MouseInfo.getNumberOfButtons()];

        for (int i = 0; i < MouseInfo.getNumberOfButtons(); i++){

            buttonMasksViaAPI[i] = InputEvent.getMaskForButton(i+1);

            System.out.println("Test (API): "+ buttonMasksViaAPI[i]);

        }

        //get same array via reflection

        Object obj = AccessController.doPrivileged(

                new PrivilegedAction() {

            public Object run() {

                try {

                    Class clazz = Class.forName("java.awt.event.InputEvent");

                    Method method  = clazz.getDeclaredMethod("getButtonDownMasks",new Class [] {});

                    if (method != null) {

                        method.setAccessible(true);

                        return method.invoke(null, (Object[])null);

                    }

                }catch (Exception e){

                    throw new RuntimeException("Test failed. Exception occured:", e);

                }

                return null;

            }

        });

        if (obj == null){

            throw new RuntimeException("Test failed. The value obtained via reflection is "+obj);

        }

        int [] buttonDownMasksViaReflection = new int [Array.getLength(obj)];

        //check that length of API array greater or equals then Reflect array.

        if (Array.getLength(obj) < buttonMasksViaAPI.length){

            throw new RuntimeException("Test failed. The length of API array greater or equals then the length of  Reflect array.");

        }

        //Check that the values obtained via reflection from InputEvent.BUTTON_DOWN_MASK are the

        // same as for standard API.

        for (int i = 0; i < MouseInfo.getNumberOfButtons(); i++){

            System.out.println("Test (Reflection): "+ Array.getInt(obj, i));

            if (buttonMasksViaAPI[i] != Array.getInt(obj, i)){

                throw new RuntimeException("Test failed. Values of InputEvent array are different for API and Reflection invocations");

            }

        }

        System.out.println("Test passed.");

    }

}