public void Test_AddNearestNeighbours_AddsNearestNeighbours_WhenThereAreSomeNearestNeighbours()
{
SoftwareSystem softwareSystemA = Model.AddSoftwareSystem("System A", "Description");
SoftwareSystem softwareSystemB = Model.AddSoftwareSystem("System B", "Description");
Person userA = Model.AddPerson("User A", "Description");
Person userB = Model.AddPerson("User B", "Description");
// userA -> systemA -> system -> systemB -> userB
userA.Uses(softwareSystemA, "");
softwareSystemA.Uses(softwareSystem, "");
softwareSystem.Uses(softwareSystemB, "");
softwareSystemB.Delivers(userB, "");
// userA -> systemA -> web application -> systemB -> userB
// web application -> database
Container database = softwareSystem.AddContainer("Database", "", "");
softwareSystemA.Uses(webApplication, "");
webApplication.Uses(softwareSystemB, "");
webApplication.Uses(database, "");
// userA -> systemA -> controller -> service -> repository -> database
Component controller = webApplication.AddComponent("Controller", "");
Component service = webApplication.AddComponent("Service", "");
Component repository = webApplication.AddComponent("Repository", "");
softwareSystemA.Uses(controller, "");
controller.Uses(service, "");
service.Uses(repository, "");
repository.Uses(database, "");
// userA -> systemA -> controller -> service -> systemB -> userB
service.Uses(softwareSystemB, "");
view = new ComponentView(webApplication, "components", "Description");
view.AddNearestNeighbours(softwareSystemA);
Assert.Equal(3, view.Elements.Count);
Assert.True(view.Elements.Contains(new ElementView(userA)));
Assert.True(view.Elements.Contains(new ElementView(softwareSystemA)));
Assert.True(view.Elements.Contains(new ElementView(controller)));
view = new ComponentView(webApplication, "components", "Description");
view.AddNearestNeighbours(controller);
Assert.Equal(3, view.Elements.Count);
Assert.True(view.Elements.Contains(new ElementView(softwareSystemA)));
Assert.True(view.Elements.Contains(new ElementView(controller)));
Assert.True(view.Elements.Contains(new ElementView(service)));
view = new ComponentView(webApplication, "components", "Description");
view.AddNearestNeighbours(service);
Assert.Equal(4, view.Elements.Count);
Assert.True(view.Elements.Contains(new ElementView(controller)));
Assert.True(view.Elements.Contains(new ElementView(service)));
Assert.True(view.Elements.Contains(new ElementView(repository)));
Assert.True(view.Elements.Contains(new ElementView(softwareSystemB)));
}
public void Test_AddNearestNeightbours_DoesNothing_WhenANullElementIsSpecified()
{
view.AddNearestNeighbours(null);
Assert.Equal(0, view.Elements.Count);
}