public void CheckIfPipeIsDeletedCorrectly()
{
var position = new Coordinate(1, 4);
var key = new PipePosition(position, EdgeType.LEFT, EdgeType.RIGHT);
doubleEdgedPipes.Add(key, mockBuilderObject.Object);
objectTable.DeletePipe(position, EdgeType.LEFT, EdgeType.RIGHT);
Assert.IsFalse(doubleEdgedPipes.ContainsKey(key));
mockBuilderObject.Verify(mock => mock.Delete(), Times.Once());
}