public void Execute(object parameter)
{
if (CanExecute(parameter))
{
_problemViewModel.DeleteSelectedNode();
}
}
public void DeleteSelectedNode_NullSelectedNode_ExpectNothingHappened()
{
//Arrange
var problemViewModel = new ProblemViewModel();
var nodeViewModel = problemViewModel.AddNode();
problemViewModel.SelectedNode = null;
//Act
//Assert
Assert.DoesNotThrow(() => problemViewModel.DeleteSelectedNode());
}
public void DeleteSelectedNode_SelectedNode_ExpectSelectedNodeIsNull()
{
//Arrange
var problemViewModel = new ProblemViewModel();
problemViewModel.AddNode();
//Act
problemViewModel.DeleteSelectedNode();
//Assert
Assert.That(problemViewModel.SelectedNode, Is.Null);
}
public void DeleteSelectedNode_SelectedNode_ExpectNodeRemovedFromCollection()
{
//Arrange
var problemViewModel = new ProblemViewModel();
var nodeViewModel = problemViewModel.AddNode();
//Act
problemViewModel.DeleteSelectedNode();
//Assert
var containsNode = problemViewModel.Nodes.Contains(nodeViewModel);
Assert.That(containsNode, Is.False);
}
