Bug 299210 [CommonNavigator] Test improvements
tests/org.eclipse.ui.tests.navigator/src/org/eclipse/ui/tests/navigator/LabelProviderTest.java
}
	private static final int NONE = 0;
	private static final int OVERRIDDEN = 1;
	private static final int OVERRIDING = 2;
	private static final int BOTH = 3;
	private static final boolean BLANK = true;
	private static final boolean NULL = false;
	private static final String PLAIN = "Plain";
	private void setBlank(String cpToGet, boolean blank) {
		NavigatorContentExtension ext = (NavigatorContentExtension) _contentService
				.getContentExtensionById(cpToGet);
		TestLabelProvider tp = (TestLabelProvider) ext.getLabelProvider();
		if (blank)
			tp._blank = true;
		else
			tp._null = true;
	}
	
	
	
	public void blankLabelProviderOverride(int nce, boolean blank, String suffix)
			throws Exception {
		String overriddenCp = TEST_CONTENT_OVERRIDDEN1 + suffix; 
		String overrideCp = TEST_CONTENT_OVERRIDE1 + suffix; 
		String checkColor = "Green";
		switch (nce) {
		case NONE:
			break;
		case OVERRIDDEN:
			setBlank(overriddenCp, blank);