public void getFilteredNodesXToY_two_operations_x0_x1_x2_intermediate_y()
{
ENV.engine = new Engine();
var x0 = alb.scalar(1);
var x1 = alb.scalar(2);
var x2 = alb.scalar(3);
var intermediate = alb.scalar(4);
var y = alb.scalar(2);
var input1 = new System.Collections.Generic.Dictionary <string, Tensor>();
input1.Add("x0", x0);
input1.Add("x1", x1);
var input2 = new System.Collections.Generic.Dictionary <string, Tensor>();
input2.Add("x2", x2);
input2.Add("intermediate", intermediate);
TapeNode[] tape = new TapeNode[] {
new TapeNode()
{
gradient = null
, id = 0
, inputs = input1,
name = "node0",
output = intermediate
}, new TapeNode()
{
gradient = null
, id = 1
, inputs = input2,
name = "node1",
output = y
}
};
var filteredTapeNodes =
Tape.getFilteredNodesXToY(tape, new Tensor[] { x0, x1, x2 }, y);
Assert.AreEqual(filteredTapeNodes.Length, 2);
AssertTools.TapeIsEqual(filteredTapeNodes, tape);
}