public void KeyPointingAtDependency()
{
var arith = new MyBasicArithmetic();
var system = new DependencySystem()
.Register <INumberInputs>()
.Register <IBasicArithmetic>(() => arith);
system.Get <INumberInputs>().SetVariable("a", 1);
system.Get <INumberInputs>().SetVariable("b", 2);
system.Get <INumberInputs>().SetVariable("c", 3);
Assert.AreEqual(1, system.Get <IBasicArithmetic>().V4("a", 0));
Assert.AreEqual(3, system.Get <IBasicArithmetic>().V4("a", 2));
Assert.AreEqual(7, system.Get <IBasicArithmetic>().V4("b", 5));
Assert.AreEqual(9, system.Get <IBasicArithmetic>().V4("b", 7));
Assert.AreEqual(8, system.Get <IBasicArithmetic>().V4("c", 5));
system.Get <INumberInputs>().SetVariable("b", 1);
Assert.AreEqual(1, system.Get <IBasicArithmetic>().V4("a", 0));
Assert.AreEqual(3, system.Get <IBasicArithmetic>().V4("a", 2));
Assert.AreEqual(6, system.Get <IBasicArithmetic>().V4("b", 5));
Assert.AreEqual(8, system.Get <IBasicArithmetic>().V4("b", 7));
Assert.AreEqual(8, system.Get <IBasicArithmetic>().V4("c", 5));
}
public void FlipBandCEarlyTerminatesV3()
{
var arith = new MyBasicArithmetic();
var system = new DependencySystem()
.Register <INumberInputs>()
.Register <IBasicArithmetic>(() => arith);
system.Get <INumberInputs>().SetVariable("a", 1);
system.Get <INumberInputs>().SetVariable("b", 2);
system.Get <INumberInputs>().SetVariable("c", 3);
// Now force-eval everyone
var _1 = system.Get <IBasicArithmetic>().V1;
var _2 = system.Get <IBasicArithmetic>().V3(1);
// Swap values of b and c
system.Get <INumberInputs>().SetVariable("b", 3);
system.Get <INumberInputs>().SetVariable("c", 2);
// v1 and v2 should be computed twice, v3 shouldn't be re-computed
Assert.AreEqual(4, system.Get <IBasicArithmetic>().V1);
Assert.AreEqual(6, system.Get <IBasicArithmetic>().V3(1));
Assert.AreEqual(2, arith.V1_invocations);
Assert.AreEqual(2, arith.V2_invocations);
Assert.AreEqual(1, arith.V3_invocations[1]);
Assert.AreEqual(6, system.Get <IBasicArithmetic>().V2);
}
public void UpdateB()
{
var arith = new MyBasicArithmetic();
var system = new DependencySystem()
.Register <INumberInputs>()
.Register <IBasicArithmetic>(() => arith);
system.Get <INumberInputs>().SetVariable("a", 1);
system.Get <INumberInputs>().SetVariable("b", 2);
system.Get <INumberInputs>().SetVariable("c", 3);
// Now force-eval everyone
var _1 = system.Get <IBasicArithmetic>().V1;
var _2 = system.Get <IBasicArithmetic>().V3(1);
// Update b
system.Get <INumberInputs>().SetVariable("b", 3);
// Everything should be computed twice
Assert.AreEqual(4, system.Get <IBasicArithmetic>().V1);
Assert.AreEqual(9, system.Get <IBasicArithmetic>().V3(1));
Assert.AreEqual(2, arith.V1_invocations);
Assert.AreEqual(2, arith.V2_invocations);
Assert.AreEqual(2, arith.V3_invocations[1]);
Assert.AreEqual(9, system.Get <IBasicArithmetic>().V2);
Assert.AreEqual(2, arith.V2_invocations);
}
public void FullComputationOnce()
{
var arith = new MyBasicArithmetic();
var system = new DependencySystem()
.Register <INumberInputs>()
.Register <IBasicArithmetic>(() => arith);
system.Get <INumberInputs>().SetVariable("a", 1);
system.Get <INumberInputs>().SetVariable("b", 2);
system.Get <INumberInputs>().SetVariable("c", 3);
Assert.AreEqual(3, system.Get <IBasicArithmetic>().V1);
Assert.AreEqual(6, system.Get <IBasicArithmetic>().V3(1));
Assert.AreEqual(1, arith.V1_invocations);
Assert.AreEqual(1, arith.V2_invocations);
Assert.AreEqual(1, arith.V3_invocations[1]);
Assert.AreEqual(6, system.Get <IBasicArithmetic>().V2);
Assert.AreEqual(1, arith.V2_invocations);
}
public void DifferentKeysAreOrthogonal()
{
var arith = new MyBasicArithmetic();
var system = new DependencySystem()
.Register <INumberInputs>()
.Register <IBasicArithmetic>(() => arith);
system.Get <INumberInputs>().SetVariable("a", 1);
system.Get <INumberInputs>().SetVariable("b", 2);
system.Get <INumberInputs>().SetVariable("c", 3);
Assert.AreEqual(3, system.Get <IBasicArithmetic>().V1);
Assert.AreEqual(6, system.Get <IBasicArithmetic>().V2);
Assert.AreEqual(6, system.Get <IBasicArithmetic>().V3(1));
Assert.AreEqual(12, system.Get <IBasicArithmetic>().V3(2));
Assert.AreEqual(1, arith.V1_invocations);
Assert.AreEqual(1, arith.V2_invocations);
Assert.AreEqual(1, arith.V3_invocations[1]);
Assert.AreEqual(1, arith.V3_invocations[2]);
}