Function TestAddRemove

system_test.go:100–122

TestAddRemove tests adding and removing entities in systems that don't implement SystemAddByInterfacer to the world.

(t *testing.T)

// TestAddRemove tests adding and removing entities in systems that don't implement
// SystemAddByInterfacer to the world.
func TestAddRemove(t *testing.T) {
	w := &World{}
	sys := SystemAddRemove{}
	w.AddSystem(&sys)
	ent := struct {
		BasicEntity
		PriorityComponent
	}{
		BasicEntity: NewBasic(),
	}
	w.AddEntity(ent)
	if len(sys.entities) != 0 {
		t.Error("Entity was added even though the system does not implement SystemAddByInterfacer")
	}
	sys.Add(ent.BasicEntity, &ent.PriorityComponent)
	if len(sys.entities) != 1 {
		t.Error("Failed to add entity to system")
	}
	w.RemoveEntity(ent.BasicEntity)
	if len(sys.entities) != 0 {
		t.Error("Removing the entity from the world did not remove it from the system.")
	}
}