1 /*
   2  * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /**
  25  @test
  26  @summary <rdar://problem/4490646>
  27  @summary Test that makes sure that there is at least one GraphicsDevice (monitor) and at least one DisplayMode (screen settings)
  28  @summary com.apple.junit.java.awt.Device
  29  @run main GraphicsDevicesTest
  30  */
  31 import java.awt.GraphicsEnvironment;
  32 import java.awt.GraphicsDevice;
  33 import java.awt.GraphicsConfiguration;
  34 import java.awt.DisplayMode;
  35 
  36 public class GraphicsDevicesTest
  37 {
  38     public static void main(String[] args) throws Exception
  39     {
  40         GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
  41         if ( ge == null )
  42             throw new RuntimeException("Test failed: no graphics environment found.");
  43 
  44         GraphicsDevice[] gds = ge.getScreenDevices();
  45         if ( gds.length < 1 ) // need at least one device
  46             throw new RuntimeException("Test failed: no screen devices found.");
  47 
  48         GraphicsDevice gd = ge.getDefaultScreenDevice();
  49         if ( gd == null )
  50             throw new RuntimeException("Test failed: no default screen device found.");
  51 
  52         GraphicsConfiguration gc = gd.getDefaultConfiguration();
  53         if ( gc == null )
  54             throw new RuntimeException("Test failed: no default configuration found.");
  55 
  56         DisplayMode[] dms = gd.getDisplayModes();
  57         if ( dms.length < 1 ) // need at least one device
  58             throw new RuntimeException("Test failed: no display modes found.");
  59     }
  60 }