public void CanConnect_Should_ReturnFalse_WhenDirectionsIncorrect()
{
var graph = new GraphModel(GraphTypeWithConnections);
var node1 = new NodeModel(Substitute.For <INodeType>());
var portIn1 = PortModel.Create <int>("In", PortDirection.Input);
var portOut1 = PortModel.Create <int>("Out", PortDirection.Output);
node1.AddPort(portIn1);
node1.AddPort(portOut1);
var node2 = new NodeModel(Substitute.For <INodeType>());
var portIn2 = PortModel.Create <int>("In", PortDirection.Input);
var portOut2 = PortModel.Create <int>("Out", PortDirection.Output);
node2.AddPort(portIn2);
node2.AddPort(portOut2);
graph.AddNode(node1);
graph.AddNode(node2);
Assert.That(graph.CanConnect(portIn1, portIn2), Is.False); // input input
Assert.That(graph.CanConnect(portOut1, portOut2), Is.False); // output output
Assert.That(graph.CanConnect(portIn1, portOut2), Is.False); // input output
}
public void CreateT_Should_Succeed_InputWithCapacity()
{
var inputPort = PortModel.Create <string>("In", PortDirection.Input, PortCapacity.Multiple);
Assert.That(inputPort.Id, Is.EqualTo("In"));
Assert.That(inputPort.Type, Is.EqualTo(typeof(string)));
Assert.That(inputPort.Direction, Is.EqualTo(PortDirection.Input));
Assert.That(inputPort.Capacity, Is.EqualTo(PortCapacity.Multiple));
}
public void CreateT_Should_Succeed_OutputWithoutCapacity()
{
var outputPort = PortModel.Create <string>("Out", PortDirection.Output);
Assert.That(outputPort.Id, Is.EqualTo("Out"));
Assert.That(outputPort.Type, Is.EqualTo(typeof(string)));
Assert.That(outputPort.Direction, Is.EqualTo(PortDirection.Output));
Assert.That(outputPort.Capacity, Is.EqualTo(PortCapacity.Multiple));
}
public void Properties_Should_Throw_OnSecondSet()
{
var port = PortModel.Create <string>("In", PortDirection.Input);
port.Node = new NodeModel(Substitute.For <INodeType>());
Assert.That(() => port.Node = new NodeModel(Substitute.For <INodeType>()), Throws.InvalidOperationException);
Assert.That(() => port.Node = null, Throws.Nothing);
}
public void Connect_Should_Throw_WhenNullPorts()
{
var graph = new GraphModel(GraphTypeWithConnections);
var port = PortModel.Create <string>("", PortDirection.Input);
Assert.That(() => graph.Connect(null, null), Throws.ArgumentNullException);
Assert.That(() => graph.Connect(port, null), Throws.ArgumentNullException);
Assert.That(() => graph.Connect(null, port), Throws.ArgumentNullException);
}
public void AddPort_Should_Throw_WhenIdIsOccupied()
{
var node = new NodeModel(Substitute.For <INodeType>());
var port1 = PortModel.Create <string>("Id", PortDirection.Input);
var port2 = PortModel.Create <string>("Id", PortDirection.Input);
node.AddPort(port1);
Assert.That(() => node.AddPort(port2), Throws.ArgumentException);
}
public void CanConnect_Should_ReturnFalse_WhenSameNode()
{
var graph = new GraphModel(GraphTypeWithConnections);
var node1 = new NodeModel(Substitute.For <INodeType>());
var port1 = PortModel.Create <string>("1", PortDirection.Output);
var port2 = PortModel.Create <string>("2", PortDirection.Input);
node1.AddPort(port1);
node1.AddPort(port2);
graph.AddNode(node1);
Assert.That(graph.CanConnect(port1, port2), Is.False);
}
public void AddPort_Should_Succeed()
{
var node = new NodeModel(Substitute.For <INodeType>());
var port = PortModel.Create <string>("Id", PortDirection.Input);
NodeModel.NodePortsChangedArgs args = default;
node.PortsChanged += e => { args = e; };
node.AddPort(port);
Assert.That(node.Ports, Does.Contain(port));
Assert.That(port.Node, Is.EqualTo(node));
Assert.That(args.Node, Is.EqualTo(node));
Assert.That(args.Port, Is.EqualTo(port));
Assert.That(args.IsAdded, Is.True);
}
public void CanConnect_Should_ReturnFalse_WhenPortsNotInGraph()
{
var graph = new GraphModel(GraphTypeWithConnections);
var nodeType = Substitute.For <INodeType>();
var node1 = new NodeModel(nodeType);
var node2 = new NodeModel(nodeType);
var port1 = PortModel.Create <string>("Out", PortDirection.Output);
var port2 = PortModel.Create <string>("In", PortDirection.Input);
Assert.That(graph.CanConnect(port1, port2), Is.False);
node1.AddPort(port1);
node2.AddPort(port2);
Assert.That(graph.CanConnect(port1, port2), Is.False);
}
public void Connect_Should_Throw_WhenCanNotConnect()
{
var graph = new GraphModel(GraphTypeWithConnections);
var nodeType = Substitute.For <INodeType>();
var node1 = new NodeModel(nodeType);
var node2 = new NodeModel(nodeType);
var port1 = PortModel.Create <string>("Out", PortDirection.Input);
var port2 = PortModel.Create <string>("In", PortDirection.Input);
node1.AddPort(port1);
node2.AddPort(port2);
graph.AddNode(node1);
graph.AddNode(node2);
Assert.That(() => graph.Connect(port1, port2), Throws.InvalidOperationException);
}
public void Connect_Should_Remove_OtherConnections()
{
var graph = new GraphModel(GraphTypeWithConnections);
var nodeType = Substitute.For <INodeType>();
var node1 = new NodeModel(nodeType);
var node2 = new NodeModel(nodeType);
var node3 = new NodeModel(nodeType);
var node4 = new NodeModel(nodeType);
var port1 = PortModel.Create <string>("Out", PortDirection.Output, PortCapacity.Single);
var port2 = PortModel.Create <string>("In", PortDirection.Input, PortCapacity.Single);
var port3 = PortModel.Create <string>("Out", PortDirection.Output, PortCapacity.Single);
var port4 = PortModel.Create <string>("In", PortDirection.Input, PortCapacity.Single);
node1.AddPort(port1);
node2.AddPort(port2);
node3.AddPort(port3);
node4.AddPort(port4);
graph.AddNode(node1);
graph.AddNode(node2);
graph.AddNode(node3);
graph.AddNode(node4);
var connection1 = graph.Connect(port1, port2);
IReadOnlyList <ConnectionModel> removedConnections = null;
graph.GraphChanged += (an, rn, ac, rc) => { removedConnections = rc; };
// ports may accept only one connection, that's why connection1 will be removed
var connection2 = graph.Connect(port3, port2);
Assert.That(graph.Connections, Does.Not.Contains(connection1));
Assert.That(removedConnections, Is.EquivalentTo(new[] { connection1 }));
// here, connection2 will be removed
var connection3 = graph.Connect(port3, port4);
Assert.That(graph.Connections, Does.Not.Contains(connection2));
Assert.That(removedConnections, Is.EquivalentTo(new[] { connection2 }));
}
public void Disconnect_Should_Batch_WithConnect()
{
var graph = new GraphModel(Substitute.For <IGraphType>());
var node1 = new NodeModel(Substitute.For <INodeType>());
var node2 = new NodeModel(Substitute.For <INodeType>());
var port1 = PortModel.Create <string>("Out1", PortDirection.Output);
var port2 = PortModel.Create <string>("Out2", PortDirection.Output);
var port3 = PortModel.Create <string>("In1", PortDirection.Input);
var port4 = PortModel.Create <string>("In2", PortDirection.Input);
node1.AddPort(port1);
node1.AddPort(port2);
node2.AddPort(port3);
node2.AddPort(port4);
graph.AddNode(node1);
graph.AddNode(node2);
var connection1 = graph.Connect(port1, port3);
var connection2 = graph.Connect(port2, port4);
IReadOnlyList <ConnectionModel> removedConnections = null;
graph.GraphChanged += (an, rn, ac, rc) => { removedConnections = rc; };
using (graph.BeginChangeSet())
{
graph.Disconnect(connection1);
graph.Disconnect(connection2);
var connection3 = graph.Connect(port1, port3);
Assert.That(removedConnections, Is.Null);
Assert.That(connection3, Is.SameAs(connection1));
}
Assert.That(removedConnections, Is.Not.Null);
Assert.That(removedConnections, Is.EquivalentTo(new[] { connection2 }));
}
public void Connect_Should_Succeed()
{
var graph = new GraphModel(GraphTypeWithConnections);
var nodeType = Substitute.For <INodeType>();
var node1 = new NodeModel(nodeType);
var node2 = new NodeModel(nodeType);
var port1 = PortModel.Create <string>("Out", PortDirection.Output);
var port2 = PortModel.Create <string>("In", PortDirection.Input);
node1.AddPort(port1);
node2.AddPort(port2);
graph.AddNode(node1);
graph.AddNode(node2);
IReadOnlyList <ConnectionModel> list = null;
graph.GraphChanged += (an, rn, ac, rc) => { list = ac; };
var connection = graph.Connect(port1, port2);
Assert.That(connection, Is.Not.Null);
Assert.That(graph.Connections, Does.Contain(connection));
Assert.That(port1.Connections, Has.Count.EqualTo(1));
Assert.That(port2.Connections, Has.Count.EqualTo(1));
Assert.That(port1.Connections, Is.EquivalentTo(port2.Connections));
Assert.That(connection.From, Is.EqualTo(port1));
Assert.That(connection.To, Is.EqualTo(port2));
Assert.That(list, Is.Not.Null);
Assert.That(list.Count, Is.EqualTo(1));
Assert.That(list, Does.Contain(connection));
}
public void RemoveNode_Should_Remove_Connections()
{
var graph = new GraphModel(GraphTypeWithConnections);
var node1 = new NodeModel(Substitute.For <INodeType>());
var node2 = new NodeModel(Substitute.For <INodeType>());
var node3 = new NodeModel(Substitute.For <INodeType>());
graph.AddNode(node1);
graph.AddNode(node2);
graph.AddNode(node3);
var port1 = PortModel.Create <string>("Out", PortDirection.Output);
var port2 = PortModel.Create <string>("In", PortDirection.Input);
var port3 = PortModel.Create <string>("Out", PortDirection.Output);
var port4 = PortModel.Create <string>("In", PortDirection.Input);
node1.AddPort(port1);
node2.AddPort(port2);
node2.AddPort(port3);
node3.AddPort(port4);
var connection1 = graph.Connect(port1, port2);
var connection2 = graph.Connect(port3, port4);
IReadOnlyList <ConnectionModel> removedConnections = null;
graph.GraphChanged += (an, rn, ac, rc) => removedConnections = rc;
graph.RemoveNode(node2);
Assert.That(graph.Connections, Does.Not.Contains(connection1));
Assert.That(graph.Connections, Does.Not.Contains(connection2));
Assert.That(removedConnections, Is.EquivalentTo(new[] { connection1, connection2 }));
}
public void CreateT_Should_Throw_WhenNullId()
{
Assert.That(() => PortModel.Create <string>(null, PortDirection.Input), Throws.ArgumentNullException);
}
public void RemovePort_Should_Throw_WhenPortNotFound()
{
var node = new NodeModel(Substitute.For <INodeType>());
Assert.That(() => node.RemovePort(PortModel.Create <string>("Id", PortDirection.Input)), Throws.ArgumentException);
}