TestUtils.java

/*
 * Copyright 2008-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package griffon.util;

import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;

public class TestUtils {
    private static boolean headless;

    /**
     * A boolean indicating if we are running in headless mode.
     * Check this flag if you believe your test may make use of AWT/Swing
     * features, then simply return rather than running your test.
     *
     * @return true if running in headless mode
     */
    public static boolean isHeadless() {
        return headless;
    }

    /**
     * Alias for isHeadless().
     *
     * @return true if running in headless mode
     */
    public static boolean getHeadless() {
        return isHeadless();
    }

    static {
        try {
            final Class jframe = TestUtils.class.getClassLoader().loadClass("javax.swing.JFrame");
            final Constructor constructor = jframe.getConstructor(new Class[]{String.class});
            constructor.newInstance("testing");
            headless = false;
        } catch (java.awt.HeadlessException | ClassNotFoundException | IllegalAccessException | InstantiationException | NoSuchMethodException | InvocationTargetException | NoClassDefFoundError | UnsatisfiedLinkError e) {
            headless = true;
        }
    }
}