Bug 296253 [CommonNavigator] An empty label is not properly shown when it is the only contributed label
tests/org.eclipse.ui.tests.navigator/src/org/eclipse/ui/tests/navigator/LabelProviderTest.java
/*******************************************************************************
 * Copyright (c) 2008, 2009 Oakland Software Incorporated 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:
 *     Oakland Software Incorporated - initial API and implementation
 *.....IBM Corporation - fixed dead code warning
 *     Fair Issac Corp - bug 287103 - NCSLabelProvider does not properly handle overrides 
 *******************************************************************************/
package org.eclipse.ui.tests.navigator;
import org.eclipse.swt.widgets.TreeItem;
import org.eclipse.ui.internal.navigator.extensions.NavigatorContentExtension;
import org.eclipse.ui.tests.harness.util.DisplayHelper;
import org.eclipse.ui.tests.navigator.extension.TestLabelProvider;
import org.eclipse.ui.tests.navigator.extension.TestLabelProviderBlank;
import org.eclipse.ui.tests.navigator.extension.TestLabelProviderCyan;
import org.eclipse.ui.tests.navigator.extension.TestLabelProviderStyledGreen;
import org.eclipse.ui.tests.navigator.extension.TrackingLabelProvider;
public class LabelProviderTest extends NavigatorTestBase {