/* * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code 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 * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /** @test @summary @summary Test that makes sure that there is at least one GraphicsDevice (monitor) and at least one DisplayMode (screen settings) @summary com.apple.junit.java.awt.Device @run main GraphicsDevicesTest */ import java.awt.GraphicsEnvironment; import java.awt.GraphicsDevice; import java.awt.GraphicsConfiguration; import java.awt.DisplayMode; public class GraphicsDevicesTest { public static void main(String[] args) throws Exception { GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); if ( ge == null ) throw new RuntimeException("Test failed: no graphics environment found."); GraphicsDevice[] gds = ge.getScreenDevices(); if ( gds.length < 1 ) // need at least one device throw new RuntimeException("Test failed: no screen devices found."); GraphicsDevice gd = ge.getDefaultScreenDevice(); if ( gd == null ) throw new RuntimeException("Test failed: no default screen device found."); GraphicsConfiguration gc = gd.getDefaultConfiguration(); if ( gc == null ) throw new RuntimeException("Test failed: no default configuration found."); DisplayMode[] dms = gd.getDisplayModes(); if ( dms.length < 1 ) // need at least one device throw new RuntimeException("Test failed: no display modes found."); } }