public void PeopleWatcher_NoPeopleThenOnePersonAtLocation()
{
PeopleWatcher pw = new PeopleWatcher(10);
Assert.AreEqual(0, pw.NumberOfPeopleAtLocation(5));
pw.AppearAtLocation(5);
Assert.AreEqual(1, pw.NumberOfPeopleAtLocation(5));
}
public void PeopleWatcher_CorrectNumberOfPeoppleWhenMoveFromOneLocationToAnother()
{
PeopleWatcher pw = new PeopleWatcher(10);
pw.AppearAtLocation(5);
pw.GoToLocationFromAnother(5, 6);
Assert.AreEqual(0, pw.NumberOfPeopleAtLocation(5));
Assert.AreEqual(1, pw.NumberOfPeopleAtLocation(6));
}