jdk/test/java/awt/Frame/ExceptionOnSetExtendedStateTest/ExceptionOnSetExtendedStateTest.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
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 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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/* @test
   @bug 8032078
   @summary Frame.setExtendedState throws RuntimeException, if
            windowState=ICONIFIED|MAXIMIZED_BOTH, on OS X
   @author Anton Litvinov
*/

import java.awt.*;

import sun.awt.SunToolkit;

public class ExceptionOnSetExtendedStateTest {
    private static final int[] frameStates = { Frame.NORMAL, Frame.ICONIFIED, Frame.MAXIMIZED_BOTH };
    private static final SunToolkit toolkit = (SunToolkit)Toolkit.getDefaultToolkit();

    private static boolean validatePlatform() {
        String osName = System.getProperty("os.name");
        if (osName == null) {
            throw new RuntimeException("Name of the current OS could not be retrieved.");
        }
        return osName.startsWith("Mac");
    }

    private static void testStateChange(int oldState, int newState, boolean decoratedFrame) {
        System.out.println(String.format(
            "testStateChange: oldState='%d', newState='%d', decoratedFrame='%b'",
            oldState, newState, decoratedFrame));

        Frame frame = new Frame("ExceptionOnSetExtendedStateTest");
        frame.setSize(200, 200);
        frame.setUndecorated(!decoratedFrame);
        frame.setVisible(true);
        toolkit.realSync();

        frame.setExtendedState(oldState);
        sleep(1000);
        frame.setExtendedState(newState);

        boolean stateWasNotChanged = true;
        int currentState = 0;
        for (int i = 0; (i < 3) && stateWasNotChanged; i++) {
            sleep(1000);
            currentState = frame.getExtendedState();
            if ((currentState == newState) ||
                (((newState & Frame.ICONIFIED) != 0) && ((currentState & Frame.ICONIFIED) != 0))) {
                stateWasNotChanged = false;
            }
        }
        frame.dispose();

        if (stateWasNotChanged) {
            throw new RuntimeException(String.format(
                "Frame state was not changed. currentState='%d'", currentState));
        }
    }

    private static void sleep(int millis) {
        try {
            Thread.sleep(millis);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args) {
        if (!validatePlatform()) {
            System.out.println("This test is only for OS X.");
            return;
        }

        // Verify that changing states of decorated/undecorated frame to/from supported states
        // and the state bit mask ICONIFIED | MAXIMIZED_BOTH does not raise RuntimeException.
        for (int i = 0; i < frameStates.length; i++) {
            testStateChange(frameStates[i], Frame.ICONIFIED | Frame.MAXIMIZED_BOTH, true);
            testStateChange(frameStates[i], Frame.ICONIFIED | Frame.MAXIMIZED_BOTH, false);
            testStateChange(Frame.ICONIFIED | Frame.MAXIMIZED_BOTH, frameStates[i], true);
            testStateChange(Frame.ICONIFIED | Frame.MAXIMIZED_BOTH, frameStates[i], false);
        }
    }
}