public void WhenViewHasBeenRemovedAndRegionManagerPropertyCleared_ThenItCanBeAddedAgainToARegion()
{
var regionManagerMock = new Mock <IRegionManager>();
regionManagerMock.Setup(x => x.CreateRegionManager())
.Returns(Mock.Of <IRegionManager>());
IRegion region = new Region {
RegionManager = regionManagerMock.Object
};
var view = new ContentView();
var scopedRegionManager = region.Add(view, null, true);
Assert.Equal(view, region.Views.First());
region.Remove(view);
view.ClearValue(Prism.Regions.Xaml.RegionManager.RegionManagerProperty);
Assert.Empty(region.Views);
var newScopedRegion = region.Add(view, null, true);
Assert.Equal(view, region.Views.First());
Assert.Same(newScopedRegion, view.GetValue(Prism.Regions.Xaml.RegionManager.RegionManagerProperty));
}
public void RemoveInexistentViewThrows()
{
IRegion region = new Region();
object view = new object();
region.Remove(view);
Assert.AreEqual(0, region.Views.Cast<object>().Count());
}
public void CanRemoveContentFromRegion()
{
IRegion region = new Region();
var view = new ContentView();
region.Add(view);
region.Remove(view);
Assert.Empty(region.Views);
}
public void GetViewReturnsNullAfterRemovingViewFromRegion()
{
IRegion region = new Region();
var myView = new ContentView();
region.Add(myView, "MyView");
region.Remove(myView);
Assert.Null(region.GetView("MyView"));
}
public void CanRemoveContentFromRegion()
{
IRegion region = new Region();
object view = new object();
region.Add(view);
region.Remove(view);
Assert.AreEqual(0, region.Views.Cast<object>().Count());
}
public void RemoveInexistentViewThrows()
{
var ex = Assert.Throws <ArgumentException>(() =>
{
IRegion region = new Region();
var view = new ContentView();
region.Remove(view);
Assert.Empty(region.Views);
});
}
public void RemovingViewAlsoRemovesItFromActiveViews()
{
IRegion region = new Region();
var model = new ContentView();
region.Add(model);
region.Activate(model);
Assert.True(region.ActiveViews.Contains(model));
region.Remove(model);
Assert.False(region.ActiveViews.Contains(model));
}
public void ViewRemovedEventPassesTheViewRemovedInTheEventArgs()
{
VisualElement removedView = null;
IRegion region = new Region();
region.Views.CollectionChanged += (sender, e) =>
{
if (e.Action == NotifyCollectionChangedAction.Remove)
{
removedView = (VisualElement)e.OldItems[0];
}
};
var model = new ContentView();
region.Add(model);
Assert.Null(removedView);
region.Remove(model);
Assert.Same(model, removedView);
}
public void RemoveViewFiresViewRemovedEvent()
{
bool viewRemoved = false;
IRegion region = new Region();
var model = new ContentView();
region.Views.CollectionChanged += (sender, e) =>
{
if (e.Action == NotifyCollectionChangedAction.Remove)
{
viewRemoved = true;
}
};
region.Add(model);
Assert.False(viewRemoved);
region.Remove(model);
Assert.True(viewRemoved);
}
public void WhenViewHasBeenRemovedAndRegionManagerPropertyCleared_ThenItCanBeAddedAgainToARegion()
{
IRegion region = new Region { RegionManager = new MockRegionManager() };
var view = new MockFrameworkElement();
var scopedRegionManager = region.Add(view, null, true);
Assert.AreEqual(view, region.Views.First());
region.Remove(view);
view.ClearValue(RegionManager.RegionManagerProperty);
Assert.AreEqual(0, region.Views.Cast<object>().Count());
var newScopedRegion = region.Add(view, null, true);
Assert.AreEqual(view, region.Views.First());
Assert.AreSame(newScopedRegion, view.GetValue(RegionManager.RegionManagerProperty));
}
public void ViewRemovedEventPassesTheViewRemovedInTheEventArgs()
{
object removedView = null;
IRegion region = new Region();
region.Views.CollectionChanged += (sender, e) =>
{
if (e.Action == NotifyCollectionChangedAction.Remove)
removedView = e.OldItems[0];
};
object model = new object();
region.Add(model);
Assert.IsNull(removedView);
region.Remove(model);
Assert.AreSame(model, removedView);
}
public void RemovingViewAlsoRemovesItFromActiveViews()
{
IRegion region = new Region();
object model = new object();
region.Add(model);
region.Activate(model);
Assert.IsTrue(region.ActiveViews.Contains(model));
region.Remove(model);
Assert.IsFalse(region.ActiveViews.Contains(model));
}
public void RemoveViewFiresViewRemovedEvent()
{
bool viewRemoved = false;
IRegion region = new Region();
object model = new object();
region.Views.CollectionChanged += (sender, e) =>
{
if (e.Action == NotifyCollectionChangedAction.Remove)
viewRemoved = true;
};
region.Add(model);
Assert.IsFalse(viewRemoved);
region.Remove(model);
Assert.IsTrue(viewRemoved);
}
public void GetViewReturnsNullAfterRemovingViewFromRegion()
{
IRegion region = new Region();
object myView = new object();
region.Add(myView, "MyView");
region.Remove(myView);
Assert.IsNull(region.GetView("MyView"));
}