public void TestDropoutEmpty()
{
var forwardInput = _cpu.CreateMatrix(SIZE, SIZE, _DefaultInit).AsIndexable();
var expectedOutput = _cpu.CreateMatrix(SIZE, SIZE, (i, j) => 0f);
var backwardInput = _cpu.CreateMatrix(SIZE, SIZE, _DefaultInit).AsIndexable();
var expectedBpOutput = _cpu.CreateMatrix(SIZE, SIZE, (i, j) => 0f);
_TestNode(_factory.CreateDropOut(1f), forwardInput, expectedOutput, backwardInput,
expectedBpOutput);
}