public void RemoveStarSystem_SystemIsValid_SystemRemoved()
{
var mockSystem = new Mock <StarSystem>("name", new List <Star>(), new List <Planet>()).Object;
var container = new StarSystemContainer();
Assert.AreEqual(0, container.StarSystemsCount);
container.AddStarSystem(mockSystem);
Assert.AreEqual(1, container.StarSystemsCount);
container.RemoveStarSystem(mockSystem);
Assert.AreEqual(0, container.StarSystemsCount);
}
public void RemoveStarSystem_SystemIsNotInContainer_NoChanges()
{
var mockInContainer = new Mock <StarSystem>("name", new List <Star>(), new List <Planet>()).Object;
var mockNotInContainer = new Mock <StarSystem>("name", new List <Star>(), new List <Planet>()).Object;
var container = new StarSystemContainer();
Assert.AreEqual(0, container.StarSystemsCount);
container.AddStarSystem(mockInContainer);
Assert.AreEqual(1, container.StarSystemsCount);
container.RemoveStarSystem(mockNotInContainer);
Assert.AreEqual(1, container.StarSystemsCount);
}