public void IsSelected()
{
var visualizationHeap = new VisualizationHeap(5);
visualizationHeap.SelectNodes(1, 3, 4);
Assert.IsTrue(visualizationHeap.IsSelected(1));
Assert.IsTrue(visualizationHeap.IsSelected(3));
Assert.IsTrue(visualizationHeap.IsSelected(4));
Assert.IsFalse(visualizationHeap.IsSelected(0));
Assert.IsFalse(visualizationHeap.IsSelected(2));
visualizationHeap.SelectNode(0);
Assert.IsTrue(visualizationHeap.IsSelected(1));
Assert.IsTrue(visualizationHeap.IsSelected(3));
Assert.IsTrue(visualizationHeap.IsSelected(4));
Assert.IsTrue(visualizationHeap.IsSelected(0));
Assert.IsFalse(visualizationHeap.IsSelected(2));
visualizationHeap.SelectNodes(2);
Assert.IsTrue(visualizationHeap.IsSelected(2));
Assert.IsFalse(visualizationHeap.IsSelected(0));
Assert.IsFalse(visualizationHeap.IsSelected(1));
Assert.IsFalse(visualizationHeap.IsSelected(3));
Assert.IsFalse(visualizationHeap.IsSelected(4));
}