org.eclipse.jdt.text.tests.performance.OpenPreferencePageTest.java Source code

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Here is the source code for org.eclipse.jdt.text.tests.performance.OpenPreferencePageTest.java

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/*******************************************************************************
 * Copyright (c) 2000, 2010 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.jdt.text.tests.performance;

import junit.framework.Test;
import junit.framework.TestSuite;

import org.eclipse.test.performance.Performance;
import org.eclipse.test.performance.PerformanceMeter;

import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Tree;
import org.eclipse.swt.widgets.TreeItem;

import org.eclipse.jface.preference.PreferenceDialog;

import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.dialogs.PreferencesUtil;
import org.eclipse.ui.internal.IWorkbenchHelpContextIds;

/**
 * @since 3.1
 */
public class OpenPreferencePageTest extends TextPerformanceTestCase {

    private static final Class THIS = OpenPreferencePageTest.class;

    private PerformanceMeter fMeter;

    public static Test suite() {
        return new TestSuite(THIS);
    }

    public void testOpenPreferencePage() {
        Display display = EditorTestHelper.getActiveDisplay();

        PreferenceDialog d = PreferencesUtil.createPreferenceDialogOn(null, null, null, null);
        PlatformUI.getWorkbench().getHelpSystem().setHelp(d.getShell(), IWorkbenchHelpContextIds.PREFERENCE_DIALOG);
        // HACK to get control back instantly
        d.setBlockOnOpen(false);
        d.open();
        EditorTestHelper.runEventQueue();

        Tree tree = findTree(d.getShell());
        assertNotNull(tree);

        tree.forceFocus();

        TreeItem javaNode = findTreeItem(tree.getItems(), "Java"); //$NON-NLS-1$
        assertTrue(javaNode != null);
        tree.setSelection(new TreeItem[] { javaNode });
        EditorTestHelper.runEventQueue();

        // setExpanded does not work - use keyboard events
        // item.setExpanded(true);
        SWTEventHelper.pressKeyCode(display, SWT.KEYPAD_ADD);
        long timeout = System.currentTimeMillis() + 5000;
        TreeItem editorNode = null;
        while (editorNode == null && System.currentTimeMillis() < timeout) {
            EditorTestHelper.runEventQueue();
            editorNode = findTreeItem(javaNode.getItems(), "Editor");
        }
        assertNotNull(editorNode);

        EditorTestHelper.runEventQueue();

        Rectangle bounds = editorNode.getBounds();
        Point p = new Point(bounds.x + bounds.width / 2, bounds.y + bounds.height / 2);
        p = tree.toDisplay(p);
        Event event = new Event();
        event.type = SWT.MouseMove;
        event.x = p.x;
        event.y = p.y;
        display.post(event);
        EditorTestHelper.runEventQueue();
        event.type = SWT.MouseDown;
        event.button = 1;

        fMeter.start();
        display.post(event);
        event.type = SWT.MouseUp;
        display.post(event);
        EditorTestHelper.runEventQueue();
        fMeter.stop();
        fMeter.commit();

        d.close();

        assertPerformance(fMeter);
    }

    private Tree findTree(Composite composite) {
        Control[] children = composite.getChildren();
        for (int i = 0; i < children.length; i++) {
            if (children[i] instanceof Tree)
                return (Tree) children[i];
            else if (children[i] instanceof Composite) {
                Tree tree = findTree((Composite) children[i]);
                if (tree != null)
                    return tree;
            }
        }
        return null;
    }

    protected void setUp() throws Exception {
        super.setUp();
        Performance performance = Performance.getDefault();
        fMeter = performance.createPerformanceMeter(performance.getDefaultScenarioId(this, "cold"));
        EditorTestHelper.joinJobs(1000, 10000, 100);
    }

    protected void tearDown() throws Exception {
        fMeter.dispose();
        super.tearDown();
    }

    private TreeItem findTreeItem(TreeItem[] items, String string) {
        // depth first
        for (int i = 0; i < items.length; i++) {
            if (string.equals(items[i].getText()))
                return items[i];
        }
        return null;
    }
}