public void PipeLinkIsDeletedCorrectly()
{
var position = new Coordinate(1, 4);
var connectingPosition = new Coordinate(2, 4);
var edge = new CoordinatePair(position, connectingPosition);
pipeLinks[new CoordinatePair(position, connectingPosition)] = mockBuilderObject.Object;
objectTable.DeletePipeLink(edge);
Assert.IsFalse(pipeLinks.ContainsKey(new CoordinatePair(position, connectingPosition)));
}