public void BackCommandShouldBeEnabledOnNavigatingToSecondPage()
{
var target = new NavigationViewModel();
var first = CreatePage();
var second = CreatePage();
target.NavigateTo(first);
target.NavigateTo(second);
Assert.True(target.NavigateBack.CanExecute(null));
Assert.False(target.NavigateForward.CanExecute(null));
}
public void ShouldCallDeactivatedOnOldPage()
{
var target = new NavigationViewModel();
var first = CreatePage();
var second = CreatePage();
target.NavigateTo(first);
first.ClearReceivedCalls();
target.NavigateTo(second);
first.Received(1).Deactivated();
}
public void ContentShouldBeSetOnNavigatingToPage()
{
var target = new NavigationViewModel();
var first = CreatePage();
var second = CreatePage();
target.NavigateTo(first);
Assert.That(first, Is.EqualTo(target.Content));
target.NavigateTo(second);
Assert.That(second, Is.SameAs(target.Content));
}
public void ContentShouldBeSetOnNavigatingBack()
{
var target = new NavigationViewModel();
var first = CreatePage();
var second = CreatePage();
target.NavigateTo(first);
target.NavigateTo(second);
target.Back();
Assert.Same(first, target.Content);
}
public void NavigatingToExistingPageInForwardHistoryShouldNotDisposePage()
{
var target = new NavigationViewModel();
var first = CreatePage();
var second = CreatePage();
target.NavigateTo(first);
target.NavigateTo(second);
target.Back();
target.NavigateTo(second);
second.DidNotReceive().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 ClearsTheContentAndHistory()
{
var target = new NavigationViewModel();
var first = CreatePage();
var second = CreatePage();
target.NavigateTo(first);
target.NavigateTo(second);
target.Clear();
Assert.Null(target.Content);
Assert.False(target.NavigateBack.CanExecute(null));
Assert.False(target.NavigateForward.CanExecute(null));
}
public void BackShouldCallActivatedOnNewPage()
{
var target = new NavigationViewModel();
var first = CreatePage();
var second = CreatePage();
target.NavigateTo(first);
target.NavigateTo(second);
first.ClearReceivedCalls();
target.Back();
first.Received(1).Activated();
}
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 CloseRequestedShouldRemovePage()
{
var target = new NavigationViewModel();
var first = CreatePage();
var second = CreatePage();
var close = new Subject <Unit>();
second.CloseRequested.Returns(close);
target.NavigateTo(first);
target.NavigateTo(second);
close.OnNext(Unit.Default);
Assert.Single(target.History);
Assert.Same(first, target.History[0]);
}
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);
}
public void DoesntThrowWhenHistoryHasMoreThan10Items()
{
var target = new NavigationViewModel();
var pages = new List <IPanePageViewModel>();
for (var i = 0; i < 11; ++i)
{
var page = CreatePage();
pages.Add(page);
target.NavigateTo(page);
}
foreach (var page in pages)
{
page.ClearReceivedCalls();
}
target.Clear();
pages.Last().Received().Deactivated();
pages.Last().Received().Dispose();
foreach (var page in pages.Take(pages.Count - 1))
{
page.DidNotReceive().Deactivated();
page.Received().Dispose();
}
}
public void ContentShouldBeSetWhenReplacingFuture()
{
var target = new NavigationViewModel();
var first = CreatePage();
var second = CreatePage();
var third = CreatePage();
target.NavigateTo(first);
target.NavigateTo(second);
target.Back();
target.NavigateTo(third);
Assert.Equal(third, target.Content);
target.Back();
Assert.Equal(first, target.Content);
}
public void ShouldCallActivatedOnNewPage()
{
var target = new NavigationViewModel();
var first = CreatePage();
target.NavigateTo(first);
first.Received(1).Activated();
}
public void ForwardAndBackCommandsShouldBeDisabledOnNavigatingToFirstPage()
{
var target = new NavigationViewModel();
var first = CreatePage();
target.NavigateTo(first);
Assert.False(target.NavigateBack.CanExecute(null));
Assert.False(target.NavigateForward.CanExecute(null));
}
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 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 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 DisposesPages()
{
var target = new NavigationViewModel();
var first = CreatePage();
var disposed = false;
first.When(x => x.Dispose()).Do(_ => disposed = true);
target.NavigateTo(first);
target.Clear();
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 Execute(object parameter)
{
navigation.NavigateTo(targetView);
DoSomethingWithParameter(parameter, targetView);
}
