public void ShouldFirePropertyChangedEventOnViewModelWhenNavigationPanelStateIsChanged()
{
// Given
var navigationPanelState = new NavigationPanelState();
var changeContentRegionCompositeCommand = new Mock <IChangeContentRegionCompositeCommand>();
var viewModel = new NavigationPanelViewModel(navigationPanelState, changeContentRegionCompositeCommand.Object);
var timesEventFired = 0;
object sender = null;
PropertyChangedEventArgs args = null;
viewModel.PropertyChanged += (s, a) =>
{
timesEventFired++;
sender = s;
args = a;
};
// When
navigationPanelState.CurrentContentRegionView = ContentRegionView.ImageProcessingCustomizationView;
// Then
Assert.AreEqual(1, timesEventFired);
Assert.AreEqual(viewModel, sender);
Assert.AreEqual(args.PropertyName, nameof(NavigationPanelViewModel.CurrentContentRegionView));
}
public void ShouldReturnCurrentContentRegionView()
{
// Given
var navigationPanelState = new NavigationPanelState {
CurrentContentRegionView = ContentRegionView.ImageProcessingCustomizationView
};
// When
// Then
Assert.AreEqual(ContentRegionView.ImageProcessingCustomizationView, navigationPanelState.CurrentContentRegionView);
}
public void ShouldNotTriggerPropertyChangedEventWhenCurrentContentRegionViewIsSetToOldValue()
{
// Given
var navigationPanelState = new NavigationPanelState();
var timesEventFired = 0;
navigationPanelState.CurrentContentRegionView = ContentRegionView.ImageDisplayView;
navigationPanelState.PropertyChanged += (s, a) => { timesEventFired++; };
// When
navigationPanelState.CurrentContentRegionView = ContentRegionView.ImageDisplayView;
// Then
Assert.AreEqual(0, timesEventFired);
}
public void ShouldTriggerPropertyChangedEventWhenCurrentContentRegionViewIsSet()
{
// Given
var navigationPanelState = new NavigationPanelState();
var timesEventFired = 0;
object sender = null;
PropertyChangedEventArgs args = null;
navigationPanelState.PropertyChanged += (s, a) =>
{
sender = s;
args = a;
timesEventFired++;
};
// When
navigationPanelState.CurrentContentRegionView = ContentRegionView.ImageProcessingCustomizationView;
// Then
Assert.AreEqual(1, timesEventFired);
Assert.AreEqual(navigationPanelState, sender);
Assert.AreEqual(nameof(NavigationPanelState.CurrentContentRegionView), args.PropertyName);
}
