Bug 166600 [DataBinding] Refactor tests to be in the correct packages
tests/org.eclipse.jface.tests.databinding/src/org/eclipse/jface/tests/databinding/ObservableTest.java
private static class MyObservable extends WritableValue {
		/**
		 * @param initialValue
		 */
		public MyObservable(Object initialValue) {
			super(initialValue, null);
		}
		public void fireChange(Object oldValue, Object newValue) {
			fireValueChange(Diffs.createValueDiff(oldValue, newValue));
		}
	}
	private MyObservable observable;
	protected void setUp() throws Exception {
		super.setUp();
        
		observable = new MyObservable(null);
	}
	protected void tearDown() throws Exception {
		super.tearDown();
		if (observable != null) {
			try {
				observable.dispose();
			} catch (Exception ex) {
				
			}
		}
		observable = null;
	}
    private static class ChangeListener implements IChangeListener {