public void Fill_CharacterAdded() { var populator = new DungeonPopulator(); var dungeon = new FakeDungeon(5, 7); var points = new[] { new Point(2, 2), new Point(3, 3) }; foreach (var p in points) dungeon[p].Type = XType.Empty; populator.Fill(dungeon); var expectedLocation = dungeon .Single(cell => cell.Type == XType.StairsUp) .Location; Assert.That(dungeon.Character, Is.Not.Null .And.With.Property(nameof(Character.Location)) .EqualTo(expectedLocation)); }