public void ShouldSetDefaultContentWhenViewModelIsNull()
{
var viewLocator = new FakeViewLocator {
LocatorFunc = t => new FakeWinformsView()
};
var defaultContent = new Control();
var target = new WinFormsViewModelViewHost {
DefaultContent = defaultContent, ViewLocator = viewLocator
};
Assert.Equal(target.CurrentView, defaultContent);
Assert.True(target.Controls.Contains(defaultContent));
}
public void SettingViewModelShouldAddTheViewtoItsControls()
{
var viewLocator = new FakeViewLocator {
LocatorFunc = t => new FakeWinformsView()
};
var target = new WinFormsViewModelViewHost();
target.ViewLocator = viewLocator;
target.ViewModel = new FakeWinformViewModel();
Assert.IsType <FakeWinformsView>(target.CurrentView);
Assert.Equal(1, target.Controls.OfType <FakeWinformsView>().Count());
}
public void ShouldNotCacheViewWhenDisabled()
{
var viewLocator = new FakeViewLocator {
LocatorFunc = t => new FakeWinformsView()
};
var defaultContent = new Control();
var target = new WinFormsViewModelViewHost {
DefaultContent = defaultContent, ViewLocator = viewLocator, CacheViews = false
};
target.ViewModel = new FakeWinformViewModel();
var cachedView = target.CurrentView;
target.ViewModel = new FakeWinformViewModel();
Assert.False(object.ReferenceEquals(cachedView, target.CurrentView));
}
public void ShouldCacheViewWhenEnabled()
{
var viewLocator = new FakeViewLocator {
LocatorFunc = t => new FakeWinformsView()
};
var defaultContent = new Control();
var target = new WinFormsViewModelViewHost {
DefaultContent = defaultContent, ViewLocator = viewLocator, CacheViews = true
};
target.ViewModel = new FakeWinformViewModel();
var cachedView = target.Content;
target.ViewModel = new FakeWinformViewModel();
Assert.True(ReferenceEquals(cachedView, target.Content));
}
public void ShouldDisposePreviousView()
{
var viewLocator = new FakeViewLocator {
LocatorFunc = t => new FakeWinformsView()
};
var target = new WinFormsViewModelViewHost()
{
CacheViews = false
};
target.ViewLocator = viewLocator;
target.ViewModel = new FakeWinformViewModel();
var currentView = target.CurrentView;
var isDisposed = false;
currentView.Disposed += (o, e) => isDisposed = true;
// switch the viewmodel
target.ViewModel = new FakeWinformViewModel();
Assert.True(isDisposed);
}