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/*
* Copyright (c) 2009, 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.
*/
import java.awt.Toolkit;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.util.Comparator;
import java.util.Iterator;
import java.util.Set;
import java.util.TreeSet;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;
/**
* SwingTest is a utility class for writing regression tests
* that require interacting with the UI.
* It uses reflection to invoke all public methods without parameters.
* All static methods are starting on the current thread.
* Other methods including constructor are starting on the EDT.
* Between each method invocation all pending events are processed.
* The methods are sorted by name and invoked in that order.
* Failure of the test is signaled by any method throwing an exception.
* If no methods throw an exception the test is assumed to have passed.
*
* @author Sergey A. Malenkov
*/
final class SwingTest implements Runnable {
private static final int WIDTH = 640;
private static final int HEIGHT = 480;
public static void start(Class<?> type) throws Throwable {
new SwingTest(type).start();
}
private final Class<?> type;
private final Iterator<Method> methods;
private JFrame frame;
private Object object;
private Method method;
private Throwable error;
private SwingTest(Class<?> type) {
Set<Method> methods = new TreeSet<Method>(new Comparator<Method>() {
public int compare(Method first, Method second) {
return first.getName().compareTo(second.getName());
}
});
for (Method method : type.getMethods()) {
if (method.getDeclaringClass().equals(type)) {
if (method.getReturnType().equals(void.class)) {
if (0 == method.getParameterTypes().length) {
methods.add(method);
}
}
}
}
this.type = type;
this.methods = methods.iterator();
}
public void run() {
try {
if (this.object == null) {
System.out.println(this.type);
this.frame = new JFrame(this.type.getSimpleName());
this.frame.setSize(WIDTH, HEIGHT);
this.frame.setLocationRelativeTo(null);
this.object = this.type.getConstructor(this.frame.getClass()).newInstance(this.frame);
this.frame.setVisible(true);
}
else if (this.method != null) {
System.out.println(this.method);
this.method.invoke(this.object);
}
else {
System.out.println((this.error == null) ? "PASSED" : "FAILED"); // NON-NLS: debug
this.frame.dispose();
this.frame = null;
}
}
catch (NoSuchMethodException exception) {
this.error = exception;
}
catch (SecurityException exception) {
this.error = exception;
}
catch (IllegalAccessException exception) {
this.error = exception;
}
catch (IllegalArgumentException exception) {
this.error = exception;
}
catch (InstantiationException exception) {
this.error = exception;
}
catch (InvocationTargetException exception) {
this.error = exception.getTargetException();
}
System.out.flush();
this.method = this.methods.hasNext() && (this.error == null)
? this.methods.next()
: null;
}
private void start() throws Throwable {
do {
if ((this.method != null) && Modifier.isStatic(this.method.getModifiers())) {
run(); // invoke static method on the current thread
}
else {
SwingUtilities.invokeLater(this); // invoke on the event dispatch thread
}
java.awt.Robot robot = new java.awt.Robot();
robot.waitForIdle();
}
while (this.frame != null);
if (this.error != null) {
throw this.error;
}
}
}
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