Bug 280846 [UI][CSS] Null styling engine required in main context for tests to run
tests/org.eclipse.e4.ui.tests/src/org/eclipse/e4/ui/tests/workbench/RunApplicationTest.java
/*******************************************************************************
 * Copyright (c) 2009 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.e4.ui.tests.workbench;
import junit.framework.TestCase;
import org.eclipse.core.databinding.observable.Realm;
import org.eclipse.core.runtime.RegistryFactory;
import org.eclipse.e4.core.services.context.EclipseContextFactory;
import org.eclipse.e4.core.services.context.IEclipseContext;
import org.eclipse.e4.core.services.context.spi.IContextConstants;
import org.eclipse.e4.ui.tests.Activator;
import org.eclipse.e4.ui.workbench.swt.internal.ResourceUtility;
import org.eclipse.e4.ui.workbench.swt.internal.WorkbenchStylingSupport;
import org.eclipse.e4.ui.workbench.swt.internal.WorkbenchWindowHandler;
import org.eclipse.e4.workbench.ui.IResourceUtiltities;
import org.eclipse.e4.workbench.ui.internal.Workbench;
import org.eclipse.emf.common.util.URI;
import org.eclipse.equinox.app.IApplicationContext;
import org.eclipse.jface.databinding.swt.SWTObservables;
import org.eclipse.osgi.service.datalocation.Location;
import org.eclipse.swt.widgets.Display;
import org.osgi.framework.BundleContext;
import org.osgi.framework.Filter;