public void CanConnectTo_WhenConnectionValidatorIsUsed_Disallow()
{
var diagramViewModel = Mock.Create<IDiagramViewModel>();
var sourceConnector = new ExpressionConnector(ConnectorType.Out, new ConnectorOut(Mock.Create<ExpressionObjectBase>()));
sourceConnector.DataType = NodeDataType.CrossReference;
Mock.Arrange(() => sourceConnector.Connector).Returns(Mock.Create<IConnectorOut>);
var vm = new ExpressionConnectorViewModel(sourceConnector, diagramViewModel);
var destinationItemMock = Mock.Create<IConnectorViewModel>();
var destinationConnector = new ExpressionConnector(ConnectorType.In, new ConnectorIn(Mock.Create<ExpressionObjectBase>()));
destinationConnector.DataType = NodeDataType.CrossReference;
var connector = Mock.Create<IConnectorIn>();
var validator = new CommonConnectionValidator();
Mock.Arrange(() => validator.CanConnect(Arg.IsAny<IConnectorOut>(), Arg.IsAny<IConnectorIn>()))
.Returns(ConnectivityState.Define(false, "Validation failed"));
Mock.Arrange(() => connector.Validator).Returns(validator);
Mock.Arrange(() => destinationConnector.Connector).Returns(connector);
Mock.Arrange(() => destinationItemMock.Item).Returns(destinationConnector);
var state = vm.CanConnectTo(destinationItemMock, Mock.Create<ICollection<IDiagramItemViewModel>>());
Assert.IsFalse(state.CanConnect);
Assert.AreEqual("Validation failed", state.JustificationMessage);
}
public void CanConnectTo_WhenTypeMismatch_Disallow()
{
var diagramViewModel = Mock.Create<IDiagramViewModel>();
var sourceConnector = new ExpressionConnector(ConnectorType.Out, new ConnectorOut(Mock.Create<ExpressionObjectBase>()));
sourceConnector.DataType = NodeDataType.Choice;
var vm = new ExpressionConnectorViewModel(sourceConnector, diagramViewModel);
var destinationItemMock = Mock.Create<IConnectorViewModel>();
var destinationConnector = new ExpressionConnector(ConnectorType.In, new ConnectorIn(Mock.Create<ExpressionObjectBase>()));
destinationConnector.DataType = NodeDataType.CrossReference;
Mock.Arrange(() => destinationItemMock.Item).Returns(destinationConnector);
var state = vm.CanConnectTo(destinationItemMock, Mock.Create<ICollection<IDiagramItemViewModel>>());
Assert.IsFalse(state.CanConnect);
Assert.AreEqual(
string.Format(CultureInfo.InvariantCulture,
LanguageService.Translate("Warn_ExpressionBuilder_TypesAreIncompatible"),
sourceConnector.DataType, destinationConnector.DataType),
state.JustificationMessage);
}