Example usage for org.eclipse.jface.databinding.conformance.util ChangeEventTracker ChangeEventTracker

Introduction

In this page you can find the example usage for org.eclipse.jface.databinding.conformance.util ChangeEventTracker ChangeEventTracker.

Prototype

public ChangeEventTracker() 

Source Link

Usage

From source file:org.eclipse.core.tests.databinding.DatabindingContextTest.java

License:Open Source License

/**
 * Asserts that IStatus is populated and change events are fired when a
 * Binding that is associated with a context is in error.
 * //from   w w  w .  ja  v a  2  s . co m
 * @throws Exception
 */
public void testValidationError() throws Exception {
    WritableValue targetObservable = WritableValue.withValueType(String.class);
    WritableValue modelObservable = WritableValue.withValueType(String.class);

    final String errorMessage = "error";
    ValueChangeEventTracker errorCounter = new ValueChangeEventTracker();
    ChangeEventTracker errorsCounter = new ChangeEventTracker();

    IObservableValue error = new AggregateValidationStatus(dbc.getBindings(),
            AggregateValidationStatus.MAX_SEVERITY);
    error.addValueChangeListener(errorCounter);
    assertTrue(((IStatus) error.getValue()).isOK());

    IObservableMap errors = dbc.getValidationStatusMap();
    errors.addChangeListener(errorsCounter);
    assertEquals(0, errors.size());

    IValidator validator = new IValidator() {
        public IStatus validate(Object value) {
            return ValidationStatus.error(errorMessage);
        }
    };

    dbc.bindValue(targetObservable, modelObservable, new UpdateValueStrategy().setAfterGetValidator(validator),
            null);

    targetObservable.setValue("");
    assertFalse(((IStatus) error.getValue()).isOK());
    assertEquals(errorMessage, ((IStatus) error.getValue()).getMessage());
    assertEquals(1, errors.size());
    assertEquals(1, errorsCounter.count);
    assertEquals(1, errorCounter.count);
    error.dispose();
}

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From source file:org.eclipse.core.tests.databinding.observable.AbstractObservableTest.java

License:Open Source License

public void testChangeListener() throws Exception {
    assertFalse(observable.hasListeners());

    ChangeEventTracker listener1 = new ChangeEventTracker();

    assertFalse(observable.firstListenerAdded);
    observable.addChangeListener(listener1);
    assertTrue(observable.firstListenerAdded);
    observable.firstListenerAdded = false;

    assertTrue(observable.hasListeners());
    assertEquals(0, listener1.count);/* ww w  .  j  a  v  a  2  s.c  om*/

    observable.fireChange();

    assertEquals(1, listener1.count);
    assertSame(observable, listener1.event.getSource());

    // Add a second listener as the 1 vs. 2 listener code is different.
    ChangeEventTracker listener2 = new ChangeEventTracker();
    observable.addChangeListener(listener2);
    assertEquals(0, listener2.count);

    observable.fireChange();
    assertEquals(2, listener1.count);
    assertEquals(1, listener2.count);

    // Add a third listener as the 2 vs. 3 or greater code is different.
    ChangeEventTracker listener3 = new ChangeEventTracker();
    observable.addChangeListener(listener3);
    assertEquals(0, listener3.count);

    observable.fireChange();

    assertEquals(3, listener1.count);
    assertEquals(2, listener2.count);
    assertEquals(1, listener3.count);

    assertFalse(observable.lastListenerRemoved);
    observable.removeChangeListener(listener1);
    observable.removeChangeListener(listener2);
    observable.removeChangeListener(listener3);
    assertTrue(observable.lastListenerRemoved);

    assertFalse(observable.hasListeners());
}

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From source file:org.eclipse.core.tests.databinding.observable.AbstractObservableTest.java

License:Open Source License

public void testHasListenersWithChangeAndStaleListeners() throws Exception {
    ChangeEventTracker changeListener = new ChangeEventTracker();
    StaleEventTracker staleListener = new StaleEventTracker();

    assertFalse(observable.hasListeners());
    assertFalse(observable.firstListenerAdded);
    assertFalse(observable.lastListenerRemoved);

    observable.addChangeListener(changeListener);
    assertTrue(observable.hasListeners());
    assertTrue(observable.firstListenerAdded);
    assertFalse(observable.lastListenerRemoved);

    // reset/*from  ww w  .j a  v a  2  s  .c  om*/
    observable.firstListenerAdded = false;
    observable.lastListenerRemoved = false;

    observable.addStaleListener(staleListener);
    assertTrue(observable.hasListeners());
    assertFalse(observable.firstListenerAdded);
    assertFalse(observable.lastListenerRemoved);

    observable.removeChangeListener(changeListener);
    assertTrue(observable.hasListeners());
    assertFalse(observable.firstListenerAdded);
    assertFalse(observable.lastListenerRemoved);

    observable.removeStaleListener(staleListener);
    assertFalse(observable.hasListeners());
    assertFalse(observable.firstListenerAdded);
    assertTrue(observable.lastListenerRemoved);
}

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From source file:org.eclipse.core.tests.internal.databinding.observable.UnmodifiableObservableListTest.java

License:Open Source License

public void testFiresChangeEvents() throws Exception {
    ChangeEventTracker mutableListener = new ChangeEventTracker();
    ChangeEventTracker unmodifiableListener = new ChangeEventTracker();

    mutable.addChangeListener(mutableListener);
    unmodifiable.addChangeListener(unmodifiableListener);

    assertEquals(0, mutableListener.count);
    assertEquals(0, unmodifiableListener.count);
    mutable.add("3");
    assertEquals(1, mutableListener.count);
    assertEquals(1, unmodifiableListener.count);
}

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