public void InventorySpaceLowerBound_ConstantInjectWithdrawRate_EqualsNextPeriodInventoryMinusMaxInjectRateAdjustedForLoss() { const double maxInjectionRate = 56.8; const double maxWithdrawalRate = 47.12; var injectWithdrawRange = new InjectWithdrawRange(-maxWithdrawalRate, maxInjectionRate); const double inventoryPercentLoss = 0.03; const double minInventory = 0.0; const double maxInventory = 1000.0; var injectWithdrawalRanges = new List <InjectWithdrawRangeByInventory> { (inventory : 0.0, injectWithdrawRange), (inventory : 100.0, injectWithdrawRange), (inventory : 300.0, injectWithdrawRange), (inventory : 600.0, injectWithdrawRange), (inventory : 800.0, injectWithdrawRange), (inventory : 1000.0, injectWithdrawRange), }; var stepInjectWithdrawConstraint = new StepInjectWithdrawConstraint(injectWithdrawalRanges); const double nextPeriodMinInventory = 620.0; const double nextPeriodMaxInventory = 870.0; double thisPeriodMinInventory = stepInjectWithdrawConstraint.InventorySpaceLowerBound(nextPeriodMinInventory, nextPeriodMaxInventory, minInventory, maxInventory, inventoryPercentLoss); const double expectedThisPeriodMinInventory = (nextPeriodMinInventory - maxInjectionRate) / (1 - inventoryPercentLoss); Assert.Equal(expectedThisPeriodMinInventory, thisPeriodMinInventory, 12); }
public void InventorySpaceLowerBound_InventoryDependentInjectWithdrawRate_ConsistentWithGetInjectWithdrawRange() { const double inventoryPercentLoss = 0.03; const double minInventory = 0.0; const double maxInventory = 1000.0; const double nextPeriodMinInventory = 552.0; const double nextPeriodMaxInventory = 734.0; double thisPeriodMinInventory = _stepConstraint.InventorySpaceLowerBound(nextPeriodMinInventory, nextPeriodMaxInventory, minInventory, maxInventory, inventoryPercentLoss); double thisPeriodMaxInjectRateAtInventory = _stepConstraint.GetInjectWithdrawRange(thisPeriodMinInventory).MaxInjectWithdrawRate; double derivedNextPeriodMinInventory = thisPeriodMinInventory * (1 - inventoryPercentLoss) + thisPeriodMaxInjectRateAtInventory; Assert.Equal(nextPeriodMinInventory, derivedNextPeriodMinInventory, 12); }