public void RemovingOnlyItemWorks()
{
var target = new NavigationViewModel();
var first = CreatePage();
target.NavigateTo(first);
target.RemoveAll(first);
Assert.Null(target.Content);
Assert.Empty(target.History);
Assert.Equal(-1, target.Index);
}
public void RemovingItemDisposesRegisteredResources()
{
var target = new NavigationViewModel();
var first = CreatePage();
var disposed = false;
target.NavigateTo(first);
target.RegisterDispose(first, Disposable.Create(() => disposed = true));
target.RemoveAll(first);
Assert.True(disposed);
}
public void RemovingItemCallsDispose()
{
var target = new NavigationViewModel();
var first = CreatePage();
var disposed = false;
first.When(x => x.Dispose()).Do(_ => disposed = true);
target.NavigateTo(first);
target.RemoveAll(first);
Assert.True(disposed);
}
public void CallsDeactivatedAndThenDisposedOnPages()
{
var target = new NavigationViewModel();
var first = CreatePage();
target.NavigateTo(first);
target.RemoveAll(first);
Received.InOrder(() =>
{
first.Deactivated();
first.Dispose();
});
}
public void RemovesAllInstancesOfPage()
{
var target = new NavigationViewModel();
var first = CreatePage();
var second = CreatePage();
target.NavigateTo(first);
target.NavigateTo(second);
target.NavigateTo(second);
target.NavigateTo(second);
target.RemoveAll(second);
Assert.Single(target.History);
}
public void RemovingCurrentItemSetsContentToPrevious()
{
var target = new NavigationViewModel();
var first = CreatePage();
var second = CreatePage();
target.NavigateTo(first);
target.NavigateTo(second);
target.RemoveAll(second);
Assert.Same(first, target.Content);
Assert.Same(first, target.History[0]);
Assert.Equal(0, target.Index);
Assert.Single(target.History);
}
public void RemovingItemAfterCurrentWorks()
{
var target = new NavigationViewModel();
var first = CreatePage();
var second = CreatePage();
target.NavigateTo(first);
target.NavigateTo(second);
target.Back();
target.RemoveAll(second);
Assert.That(first, Is.SameAs(target.Content));
Assert.That(first, Is.SameAs(target.History[0]));
Assert.That(0, Is.EqualTo(target.Index));
//Assert.Single(target.History);
}
