public void GivenTabControlViewModelWithTabs_WhenRemovingTabAndRemovedTabRaisesPropertyChangedEvent_ThenTabControlDoesNotRaiseEvent()
{
// Given
var tabControlViewModel = new TabControlViewModel();
PropertyChangedEventArgs eventArgs = null;
bool propertyChangedTriggered = false;
tabControlViewModel.PropertyChanged += (o, e) =>
{
eventArgs = e;
propertyChangedTriggered = true;
};
var tabViewModel = new TestTabViewModel();
tabControlViewModel.Tabs.Add(tabViewModel);
var random = new Random(21);
// When
bool removeSuccessful = tabControlViewModel.Tabs.Remove(tabViewModel);
Assert.That(removeSuccessful, Is.True);
tabViewModel.TabProperty = random.Next();
// Then
Assert.That(propertyChangedTriggered, Is.False);
Assert.That(eventArgs, Is.Null);
}
public void SelectedTabItem_WithValidValue_RaisesPropertyChangedEvent()
{
// Setup
var tabControlViewModel = new TabControlViewModel();
bool propertyChangedTriggered = false;
PropertyChangedEventArgs eventArgs = null;
tabControlViewModel.PropertyChanged += (o, e) =>
{
propertyChangedTriggered = true;
eventArgs = e;
};
var tabViewModel = new TestTabViewModel();
tabControlViewModel.Tabs.Add(tabViewModel);
// Call
tabControlViewModel.SelectedTabItem = tabViewModel;
// Assert
Assert.That(propertyChangedTriggered, Is.True);
Assert.That(eventArgs, Is.Not.Null);
Assert.That(eventArgs.PropertyName, Is.EqualTo(nameof(TabControlViewModel.SelectedTabItem)));
}
public void GivenTabControlViewModelWithTabs_WhenTabRaisesPropertyChangedEvent_ThenTabControlViewRaisesPropertyChangedEvent()
{
// Given
var tabControlViewModel = new TabControlViewModel();
PropertyChangedEventArgs eventArgs = null;
bool propertyChangedTriggered = false;
tabControlViewModel.PropertyChanged += (o, e) =>
{
eventArgs = e;
propertyChangedTriggered = true;
};
var tabViewModel = new TestTabViewModel();
tabControlViewModel.Tabs.Add(tabViewModel);
var random = new Random(21);
// When
tabViewModel.TabProperty = random.Next();
// Then
Assert.That(propertyChangedTriggered, Is.True);
Assert.That(eventArgs, Is.Not.Null);
Assert.That(eventArgs.PropertyName, Is.EqualTo(nameof(TestTabViewModel.TabProperty)));
}
public void GivenTabControlViewModelWithTabs_WhenViewModelDisposedAndTabRaisesPropertyChangedEvent_ThenTabControlDoesNotRaiseEvent()
{
// Given
var tabControlViewModel = new TabControlViewModel();
PropertyChangedEventArgs eventArgs = null;
bool propertyChangedTriggered = false;
tabControlViewModel.PropertyChanged += (o, e) =>
{
eventArgs = e;
propertyChangedTriggered = true;
};
var tabViewModel = new TestTabViewModel();
tabControlViewModel.Tabs.Add(tabViewModel);
var random = new Random(21);
// Precondition
CollectionAssert.AreEqual(new[]
{
tabViewModel
}, tabControlViewModel.Tabs);
// When
tabControlViewModel.Dispose();
tabViewModel.TabProperty = random.Next();
// Then
Assert.That(propertyChangedTriggered, Is.False);
Assert.That(eventArgs, Is.Null);
Assert.That(tabControlViewModel.Tabs, Is.Empty);
}
