public void InventorySpaceUpperBound_ConstantInjectWithdrawRate_EqualsNextPeriodInventoryPlusMaxWithdrawalRateAdjustedForLoss() { 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 = 320.0; const double nextPeriodMaxInventory = 620.0; double thisPeriodMaxInventory = stepInjectWithdrawConstraint.InventorySpaceUpperBound(nextPeriodMinInventory, nextPeriodMaxInventory, minInventory, maxInventory, inventoryPercentLoss); const double expectedThisPeriodMaxInventory = (nextPeriodMaxInventory + maxWithdrawalRate) / (1 - inventoryPercentLoss); Assert.Equal(expectedThisPeriodMaxInventory, thisPeriodMaxInventory, 12); }
public void InventorySpaceUpperBound_InventoryDependentInjectWithdrawRate_ConsistentWithGetInjectWithdrawRange() { const double inventoryPercentLoss = 0.03; const double minInventory = 0.0; const double maxInventory = 1000.0; const double nextPeriodMinInventory = 320.0; const double nextPeriodMaxInventory = 590.5; double thisPeriodMaxInventory = _stepConstraint.InventorySpaceUpperBound(nextPeriodMinInventory, nextPeriodMaxInventory, minInventory, maxInventory, inventoryPercentLoss); double thisPeriodMaxWithdrawalRateAtInventory = _stepConstraint.GetInjectWithdrawRange(thisPeriodMaxInventory).MinInjectWithdrawRate; double derivedNextPeriodMaxInventory = thisPeriodMaxInventory * (1 - inventoryPercentLoss) + thisPeriodMaxWithdrawalRateAtInventory; Assert.Equal(nextPeriodMaxInventory, derivedNextPeriodMaxInventory, 12); }