public void CanAddInput()
{
var posMock = new Mock <IGetPosition>();
posMock.Setup(p => p.GetElementSize(It.IsAny <IViewAware>())).Returns(new Size(4, 4));
posMock.Setup(p => p.ViewLoaded(It.IsAny <IViewAware>())).Returns(Observable.Never <Unit>());
PipelineViewModel vm = MainViewModelTest.GetInstance(
container => container.ComposeExportedValue <IGetPosition>(posMock.Object)
).PipelineViewModel;
var node0 = new NodeViewModel(new BlurNode(), vm);
vm.Nodes.Add(node0);
vm.Parent.Model.Graph.AddNode(node0.Model);
var node1 = new NodeViewModel(new WeightedAveragedMergeNode(), vm);
vm.Nodes.Add(node1);
vm.Parent.Model.Graph.AddNode(node1.Model);
Assert.Equal(0, node1.Model.Inputs.Count);
Assert.Equal(1, node1.Inputs.Count());
vm.InOutputMouseDown(node0.Outputs.First());
vm.InOutputMouseUp(node1.Inputs.Last());
Assert.Equal(1, node1.Model.Inputs.Count);
Assert.Equal(2, node1.Inputs.Count());
Assert.Equal(node1.Inputs.First(), vm.Edges.Single().StartViewModel);
}
public void CanDragEdge()
{
var posMock = new Mock <IGetPosition>();
posMock.Setup(p => p.GetElementSize(It.IsAny <IViewAware>())).Returns(new Size(4, 4));
posMock.Setup(p => p.ViewLoaded(It.IsAny <IViewAware>())).Returns(Observable.Never <Unit>());
PipelineViewModel vm = MainViewModelTest.GetInstance(
container => container.ComposeExportedValue <IGetPosition>(posMock.Object)
).PipelineViewModel;
var node0 = new NodeViewModel(new BlurNode(), vm);
vm.Nodes.Add(node0);
vm.Parent.Model.Graph.AddNode(node0.Model);
var node1 = new NodeViewModel(new BlurNode(), vm);
vm.Nodes.Add(node1);
vm.Parent.Model.Graph.AddNode(node1.Model);
posMock.Setup(p => p.GetElementPosition(node0.Outputs.Single(), vm)).Returns(new Point(10, 10));
posMock.Setup(p => p.GetElementPosition(node0.Inputs.Single(), vm)).Returns(new Point(30, 10));
posMock.Setup(p => p.GetElementPosition(node1.Inputs.Single(), vm)).Returns(new Point(40, 10));
// Start edge from node0 output
Assert.PropertyChanged(vm, "DraggedEdge",
() => vm.InOutputMouseDown(node0.Outputs.First())
);
var edge = vm.DraggedEdge;
Assert.Equal(new Point(12, 12), edge.StartPoint);
Assert.Equal(new Point(12, 12), edge.EndPoint);
Assert.Equal(EdgeStatus.Indeterminate, edge.Status);
// Move node0
posMock.Setup(p => p.GetElementPosition(node0.Outputs.Single(), vm)).Returns(new Point(20, 10));
Assert.PropertyChanged(edge, "Geometry",
() => node0.Position = new Point(-1, -1) // Trigger ViewPositionChanged
);
Assert.Equal(new Point(22, 12), edge.StartPoint);
Assert.Equal(new Point(22, 12), edge.EndPoint);
// Drag edge
var mouseMock = new Mock <IMouseEventInfo>();
mouseMock.Setup(m => m.GetPosition(vm)).Returns(new Point(50, 50));
mouseMock.SetupGet(m => m.LeftButton).Returns(MouseButtonState.Pressed);
vm.MouseMove(mouseMock.Object);
Assert.Equal(EdgeStatus.Indeterminate, edge.Status);
Assert.Equal(new Point(50, 50), edge.EndPoint);
// Drag edge over node0 input
var e = new RoutedEventArgs(Mouse.MouseMoveEvent);
vm.InOutputMouseMove(node0.Inputs.Single(), e);
Assert.Equal(new Point(32, 12), edge.EndPoint);
Assert.Equal(EdgeStatus.Invalid, edge.Status);
// Drag edge over node1 input
vm.InOutputMouseMove(node1.Inputs.Single(), e);
Assert.Equal(new Point(42, 12), edge.EndPoint);
Assert.Equal(EdgeStatus.Valid, edge.Status);
// Drop edge on node1 input
vm.InOutputMouseUp(node1.Inputs.Single());
Assert.Equal(new Point(42, 12), vm.Edges.Single().StartPoint);
Assert.Equal(new Point(22, 12), vm.Edges.Single().EndPoint);
Assert.NotNull(vm.Edges.Single().Geometry);
}