public void AndNodeOutputTest()
{
var a1 = new AndNode();
var a2 = new AndNode();
var a3 = new AndNode();
var a4 = new AndNode();
a1.Step(NodeCurrent.Low);
a1.Step(NodeCurrent.Low);
a2.Step(NodeCurrent.High);
a2.Step(NodeCurrent.Low);
a3.Step(NodeCurrent.Low);
a3.Step(NodeCurrent.High);
a4.Step(NodeCurrent.High);
a4.Step(NodeCurrent.High);
Assert.IsTrue(a1.Value == NodeCurrent.Low);
Assert.IsTrue(a2.Value == NodeCurrent.Low);
Assert.IsTrue(a3.Value == NodeCurrent.Low);
Assert.IsTrue(a4.Value == NodeCurrent.High);
}