@Test
public void whenCheckedItemPositionChanged_thenValueModelUpdatedAccordingly() {
ValueModel<SparseBooleanArray> valueModel =
twoWayBindToProperty(SparseBooleanArray.class, new SparseBooleanArray());
setItemsChecked(SparseBooleanArrayUtils.toSet(checkedItemPositions));
assertSparseBooleanArrayEquals(checkedItemPositions, valueModel.getValue());
}
@Override
public void performBind(PresentationModelAdapter presentationModelAdapter) {
final ValueModel<PropertyType> valueModel = getPropertyValueModel(presentationModelAdapter);
valueModel.addPropertyChangeListener(
new PresentationModelPropertyChangeListener() {
@Override
public void propertyChanged() {
valueModelUpdated(valueModel.getValue());
}
});
}
@Override
public void setValue(PropertyType newValue) {
viewUpdatePropagationLatch.turnOn();
try {
propertyValueModel.setValue(newValue);
} finally {
viewUpdatePropagationLatch.turnOff();
}
}
private void observeChangesOnTheValueModel(final ValueModel<PropertyType> valueModel) {
valueModel.addPropertyChangeListener(
new PresentationModelPropertyChangeListener() {
@Override
public void propertyChanged() {
if (viewUpdatePropagationLatch.tryToPass()) valueModelUpdated(valueModel.getValue());
}
});
}
@Test
public void
givenAPropertyViewAttributeWithTwoWayBinding_whenValueModelIsUpdated_thenViewShouldReceiveOnlyASingleUpdate() {
setupAndBindAttribute(TWO_WAY_BINDING, DONT_PRE_INITIALIZE_VIEW);
valueModel.setValue(A_NEW_VALUE);
assertThat(attribute.viewUpdateNotificationCount, is(1));
}
@Test
public void
givenAPropertyViewAttributeWithTwoWayBinding_whenTheViewIsUpdated_thenValueModelShouldBeUpdated() {
setupAndBindAttribute(TWO_WAY_BINDING, DONT_PRE_INITIALIZE_VIEW);
attribute.simulateViewUpdate(A_NEW_VALUE);
assertThat(valueModel.getValue(), is(A_NEW_VALUE));
}
@Test
public void
givenABoundPropertyViewAttribute_whenValueModelIsUpdated_thenNewValueShouldBePassedToThePropertyViewAttribute() {
setupAndBindAttribute(ONE_WAY_BINDING, DONT_PRE_INITIALIZE_VIEW);
valueModel.setValue(A_NEW_VALUE);
assertThat(attribute.updatedValue, is(A_NEW_VALUE));
}
public void preInitializeView(BindingContext presentationModelAdapter) {
ValueModel<PropertyType> valueModel = getPropertyValueModel(presentationModelAdapter);
valueModelUpdated(valueModel.getValue());
}
@Override
public void removePropertyChangeListener(PresentationModelPropertyChangeListener listener) {
propertyValueModel.removePropertyChangeListener(listener);
}
@Override
public PropertyType getValue() {
return propertyValueModel.getValue();
}