Bug 181982 [Viewers] content provider in TreeTest should return children when getElements is called
tests/org.eclipse.ui.tests.performance/src/org/eclipse/jface/tests/performance/TreeTest.java
TreeViewer viewer;
	static int TEST_COUNT = 1000;
	public TreeTest(String testName, int tagging) {
		super(testName, tagging);
	}
	public TreeTest(String testName) {
		super(testName);
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.tests.performance.ViewerTest#createViewer(org.eclipse.swt.widgets.Shell)
	 */
	protected StructuredViewer createViewer(Shell shell) {
		viewer = new TreeViewer(browserShell);
		viewer.setContentProvider(getContentProvider());
		viewer.setLabelProvider(getLabelProvider());
		viewer.setSorter(new ViewerSorter());
		viewer.setUseHashlookup(true);
		return viewer;
	}
	/*
	 * (non-Javadoc)