public void ReduceAvailableSpace()
{
var owner = KeyPair.Generate();
var simulator = new ChainSimulator(owner, 1234);
var nexus = simulator.Nexus;
var testUser = KeyPair.Generate();
var accountBalance = BaseEnergyRatioDivisor * 100;
Transaction tx = null;
simulator.BeginBlock();
simulator.GenerateTransfer(owner, testUser.Address, nexus.RootChain, Nexus.FuelTokenSymbol, 100000000);
simulator.GenerateTransfer(owner, testUser.Address, nexus.RootChain, Nexus.StakingTokenSymbol, accountBalance);
simulator.EndBlock();
//-----------
//Perform a valid Stake call for minimum staking amount
var stakedAmount = BaseEnergyRatioDivisor * 5;
var startingSoulBalance = simulator.Nexus.RootChain.GetTokenBalance(Nexus.StakingTokenSymbol, testUser.Address);
simulator.BeginBlock();
tx = simulator.GenerateCustomTransaction(testUser, () =>
ScriptUtils.BeginScript().AllowGas(testUser.Address, Address.Null, 1, 9999)
.CallContract("energy", "Stake", testUser.Address, stakedAmount).
SpendGas(testUser.Address).EndScript());
simulator.EndBlock();
//-----------
//Upload a file
var filename = "notAVirus.exe";
var headerSize = (BigInteger)simulator.Nexus.RootChain.InvokeContract("storage", "CalculateRequiredSize", filename, 0);
var contentSize = (long)(stakedAmount * KilobytesPerStake * 1024 / 5) - (long)headerSize;
var content = new byte[contentSize];
simulator.BeginBlock();
tx = simulator.GenerateCustomTransaction(testUser, () =>
ScriptUtils.BeginScript().AllowGas(testUser.Address, Address.Null, 1, 9999)
.CallContract("storage", "UploadFile", testUser.Address, filename, contentSize, content, ArchiveFlags.None).
SpendGas(testUser.Address).EndScript());
simulator.EndBlock();
var usedSpace = (BigInteger)simulator.Nexus.RootChain.InvokeContract("storage", "GetUsedSpace", testUser.Address);
Assert.IsTrue(usedSpace == contentSize);
//-----------
//Time skip 1 day
simulator.TimeSkipDays(1);
//-----------
//Try partial unstake: should succeed
var initialStakedAmount = (BigInteger)simulator.Nexus.RootChain.InvokeContract("energy", "GetStake", testUser.Address);
var stakeReduction = stakedAmount / 5;
startingSoulBalance = simulator.Nexus.RootChain.GetTokenBalance(Nexus.StakingTokenSymbol, testUser.Address);
simulator.BeginBlock();
simulator.GenerateCustomTransaction(testUser, () =>
ScriptUtils.BeginScript().AllowGas(testUser.Address, Address.Null, 1, 9999)
.CallContract("energy", "Unstake", testUser.Address, stakeReduction).
SpendGas(testUser.Address).EndScript());
simulator.EndBlock();
var finalStakedAmount = (BigInteger)simulator.Nexus.RootChain.InvokeContract("energy", "GetStake", testUser.Address);
Assert.IsTrue(finalStakedAmount == 0);
}
public void UnstakeWithStoredFilesFailure()
{
var owner = KeyPair.Generate();
var simulator = new ChainSimulator(owner, 1234);
var nexus = simulator.Nexus;
var testUser = KeyPair.Generate();
var accountBalance = BaseEnergyRatioDivisor * 100;
Transaction tx = null;
simulator.BeginBlock();
simulator.GenerateTransfer(owner, testUser.Address, nexus.RootChain, Nexus.FuelTokenSymbol, 100000000);
simulator.GenerateTransfer(owner, testUser.Address, nexus.RootChain, Nexus.StakingTokenSymbol, accountBalance);
simulator.EndBlock();
//-----------
//Perform a valid Stake call for minimum staking amount
var stakedAmount = BaseEnergyRatioDivisor;
var startingSoulBalance = simulator.Nexus.RootChain.GetTokenBalance(Nexus.StakingTokenSymbol, testUser.Address);
simulator.BeginBlock();
tx = simulator.GenerateCustomTransaction(testUser, () =>
ScriptUtils.BeginScript().AllowGas(testUser.Address, Address.Null, 1, 9999)
.CallContract("energy", "Stake", testUser.Address, stakedAmount).
SpendGas(testUser.Address).EndScript());
simulator.EndBlock();
//-----------
//Upload a file
var filename = "notAVirus.exe";
var headerSize = CalculateRequiredSize(filename, 0);
var contentSize = (long)(stakedAmount * KilobytesPerStake * 1024) - (long)headerSize;
var content = new byte[contentSize];
var contentMerkle = new MerkleTree(content);
simulator.BeginBlock();
tx = simulator.GenerateCustomTransaction(testUser, () =>
ScriptUtils.BeginScript().AllowGas(testUser.Address, Address.Null, 1, 9999)
.CallContract("storage", "UploadFile", testUser.Address, filename, contentSize, contentMerkle, ArchiveFlags.None, new byte[0]).
SpendGas(testUser.Address).EndScript());
simulator.EndBlock();
var usedSpace = (BigInteger)simulator.Nexus.RootChain.InvokeContract("storage", "GetUsedSpace", testUser.Address);
Assert.IsTrue(usedSpace == contentSize);
//-----------
//Time skip 1 day
simulator.TimeSkipDays(1);
//-----------
//Try to unstake everything: should fail due to files still existing for this user
var initialStakedAmount = (BigInteger)simulator.Nexus.RootChain.InvokeContract("energy", "GetStake", testUser.Address);
var stakeReduction = initialStakedAmount - BaseEnergyRatioDivisor;
startingSoulBalance = simulator.Nexus.RootChain.GetTokenBalance(Nexus.StakingTokenSymbol, testUser.Address);
Assert.ThrowsException <Exception>(() =>
{
simulator.BeginBlock();
simulator.GenerateCustomTransaction(testUser, () =>
ScriptUtils.BeginScript().AllowGas(testUser.Address, Address.Null, 1, 9999)
.CallContract("energy", "Unstake", testUser.Address, stakeReduction).
SpendGas(testUser.Address).EndScript());
simulator.EndBlock();
});
var finalStakedAmount = (BigInteger)simulator.Nexus.RootChain.InvokeContract("energy", "GetStake", testUser.Address);
Assert.IsTrue(initialStakedAmount == finalStakedAmount);
usedSpace = (BigInteger)simulator.Nexus.RootChain.InvokeContract("storage", "GetUsedSpace", testUser.Address);
}
public void UnstakeAfterUsedSpaceRelease()
{
var owner = KeyPair.Generate();
var simulator = new ChainSimulator(owner, 1234);
var nexus = simulator.Nexus;
var testUser = KeyPair.Generate();
var accountBalance = MinimumValidStake * 100;
Transaction tx = null;
simulator.BeginBlock();
simulator.GenerateTransfer(owner, testUser.Address, nexus.RootChain, Nexus.FuelTokenSymbol, 100000000);
simulator.GenerateTransfer(owner, testUser.Address, nexus.RootChain, Nexus.StakingTokenSymbol, accountBalance);
simulator.EndBlock();
//-----------
//Perform a valid Stake call for minimum staking amount
var stakedAmount = MinimumValidStake;
var startingSoulBalance = simulator.Nexus.RootChain.GetTokenBalance(Nexus.StakingTokenSymbol, testUser.Address);
simulator.BeginBlock();
tx = simulator.GenerateCustomTransaction(testUser, ProofOfWork.None, () =>
ScriptUtils.BeginScript().AllowGas(testUser.Address, Address.Null, 1, 9999)
.CallContract("energy", "Stake", testUser.Address, stakedAmount).
SpendGas(testUser.Address).EndScript());
simulator.EndBlock();
//-----------
//Upload a file
var filename = "notAVirus.exe";
var headerSize = CalculateRequiredSize(filename, 0);
var contentSize = (long)(stakedAmount / MinimumValidStake * KilobytesPerStake * 1024) - (long)headerSize;
var content = new byte[contentSize];
var contentMerkle = new MerkleTree(content);
simulator.BeginBlock();
tx = simulator.GenerateCustomTransaction(testUser, ProofOfWork.None, () =>
ScriptUtils.BeginScript().AllowGas(testUser.Address, Address.Null, 1, 9999)
.CallContract("storage", "UploadFile", testUser.Address, filename, contentSize, contentMerkle, ArchiveFlags.None, new byte[0]).
SpendGas(testUser.Address).EndScript());
simulator.EndBlock();
var usedSpace = simulator.Nexus.RootChain.InvokeContract("storage", "GetUsedSpace", testUser.Address).AsNumber();
Assert.IsTrue(usedSpace == contentSize + headerSize);
//-----------
//Delete the file
simulator.BeginBlock();
tx = simulator.GenerateCustomTransaction(testUser, ProofOfWork.None, () =>
ScriptUtils.BeginScript().AllowGas(testUser.Address, Address.Null, 1, 9999)
.CallContract("storage", "DeleteFile", testUser.Address, filename).
SpendGas(testUser.Address).EndScript());
simulator.EndBlock();
usedSpace = simulator.Nexus.RootChain.InvokeContract("storage", "GetUsedSpace", testUser.Address).AsNumber();
Assert.IsTrue(usedSpace == 0);
//-----------
//Time skip 1 day
simulator.TimeSkipDays(1);
//-----------
//Try to unstake everything: should succeed
simulator.BeginBlock();
simulator.GenerateCustomTransaction(testUser, ProofOfWork.None, () =>
ScriptUtils.BeginScript().AllowGas(testUser.Address, Address.Null, 1, 9999)
.CallContract("energy", "Unstake", testUser.Address, stakedAmount).
SpendGas(testUser.Address).EndScript());
simulator.EndBlock();
var finalStakedAmount = simulator.Nexus.RootChain.InvokeContract("energy", "GetStake", testUser.Address).AsNumber();
Assert.IsTrue(finalStakedAmount == 0);
}