public void BorderValueTest() { var expected = 1f; map.BorderValue = expected; map.Clear(10f); Assert.Equal(expected, map[-1, -1]); Assert.Equal(expected, map[-1, 0]); Assert.Equal(expected, map[-1, 1]); Assert.Equal(expected, map[-1, 2]); Assert.Equal(expected, map[2, -1]); Assert.Equal(expected, map[2, 0]); Assert.Equal(expected, map[2, 1]); Assert.Equal(expected, map[2, 2]); }