public void InternalCreate_Balance_Error()
{
var typeName = "Test";
var internalCreateMessage = new InternalCreateMessage(
uint160.Zero,
10,
(Gas)(GasPriceList.BaseCost + 100000),
new object[] { },
typeName
);
var state = new Mock <IState>();
// Setup the balance with less than the required amount.
state.Setup(s => s.GetBalance(internalCreateMessage.From))
.Returns(internalCreateMessage.Amount - 1);
var stateProcessor = new StateProcessor(this.vm.Object, this.addressGenerator.Object);
StateTransitionResult result = stateProcessor.Apply(state.Object, internalCreateMessage);
state.Verify(s => s.GetBalance(internalCreateMessage.From));
Assert.True(result.IsFailure);
Assert.NotNull(result.Error);
Assert.Null(result.Error.VmError);
Assert.Equal(StateTransitionErrorKind.InsufficientBalance, result.Error.Kind);
Assert.Equal((Gas)0, result.GasConsumed);
}
public void InternalCreate_Vm_Error()
{
var newContractAddress = uint160.One;
var vmExecutionResult = VmExecutionResult.Fail(VmExecutionErrorKind.InvocationFailed, "Error");
// Code must have a length to pass precondition checks.
var code = new byte[1];
var typeName = "Test";
var internalCreateMessage = new InternalCreateMessage(
uint160.Zero,
10,
(RuntimeObserver.Gas)(GasPriceList.BaseCost + 100000),
new object[] { },
typeName
);
this.vm.Setup(v =>
v.Create(It.IsAny <IStateRepository>(),
It.IsAny <ISmartContractState>(),
It.IsAny <ExecutionContext>(),
It.IsAny <byte[]>(),
It.IsAny <object[]>(),
It.IsAny <string>()))
.Returns(vmExecutionResult);
// Need to return code for the sender
this.contractStateRoot
.Setup(sr => sr.GetCode(internalCreateMessage.From))
.Returns(code);
var state = new Mock <IState>();
state.Setup(s => s.GetBalance(internalCreateMessage.From)).Returns(internalCreateMessage.Amount + 1);
state.SetupGet(s => s.ContractState).Returns(this.contractStateRoot.Object);
state.Setup(s => s.GenerateAddress(It.IsAny <IAddressGenerator>())).Returns(newContractAddress);
var stateProcessor = new StateProcessor(this.vm.Object, this.addressGenerator.Object);
StateTransitionResult result = stateProcessor.Apply(state.Object, internalCreateMessage);
state.Verify(s => s.CreateSmartContractState(state.Object, It.IsAny <RuntimeObserver.IGasMeter>(), newContractAddress, internalCreateMessage, this.contractStateRoot.Object));
this.vm.Verify(
v => v.Create(
this.contractStateRoot.Object,
It.IsAny <ISmartContractState>(),
It.IsAny <ExecutionContext>(),
code,
internalCreateMessage.Parameters,
internalCreateMessage.Type),
Times.Once);
Assert.True(result.IsFailure);
Assert.NotNull(result.Error);
Assert.Equal(result.Error.VmError, vmExecutionResult.Error.Message);
Assert.Equal(StateTransitionErrorKind.VmError, result.Error.Kind);
Assert.Equal(GasPriceList.CreateCost, result.GasConsumed);
}
public void InternalCreate_Success()
{
// The difference between an internal and an external create:
// - Internal create performs a balance check before execution
// - Internal create appends a new internal transfer if successful
var newContractAddress = uint160.One;
var vmExecutionResult = VmExecutionResult.Success(true, "Test");
var code = new byte[1];
var typeName = "Test";
var internalCreateMessage = new InternalCreateMessage(
uint160.Zero,
10,
(Gas)(GasPriceList.BaseCost + 100000),
new object[] {},
typeName
);
this.contractStateRoot
.Setup(sr => sr.GetCode(internalCreateMessage.From))
.Returns(code);
this.vm.Setup(v => v.Create(this.contractStateRoot.Object, It.IsAny <ISmartContractState>(), code, internalCreateMessage.Parameters, internalCreateMessage.Type))
.Returns(vmExecutionResult);
var state = new Mock <IState>();
// Return the sent amount + 1
state.Setup(s => s.GetBalance(internalCreateMessage.From)).Returns(internalCreateMessage.Amount + 1);
state.SetupGet(s => s.ContractState).Returns(this.contractStateRoot.Object);
state.Setup(s => s.GenerateAddress(It.IsAny <IAddressGenerator>())).Returns(newContractAddress);
var stateProcessor = new StateProcessor(this.vm.Object, this.addressGenerator.Object);
StateTransitionResult result = stateProcessor.Apply(state.Object, internalCreateMessage);
// Verify we check the balance of the sender first
state.Verify(s => s.GetBalance(internalCreateMessage.From));
// Because this is an internal create we get the code from the sender's code cache
this.contractStateRoot.Verify(s => s.GetCode(internalCreateMessage.From), Times.Once);
state.Verify(s => s.GenerateAddress(this.addressGenerator.Object), Times.Once);
// Verify the account was created
this.contractStateRoot.Verify(s => s.CreateAccount(newContractAddress), Times.Once);
// Verify we set up the smart contract state
state.Verify(s => s.CreateSmartContractState(state.Object, It.IsAny <GasMeter>(), newContractAddress, internalCreateMessage, this.contractStateRoot.Object));
// Verify the VM was invoked
this.vm.Verify(v => v.Create(this.contractStateRoot.Object, It.IsAny <ISmartContractState>(), code, internalCreateMessage.Parameters, internalCreateMessage.Type), Times.Once);
// Verify the value was added to the internal transfer list
state.Verify(s => s.AddInternalTransfer(It.Is <TransferInfo>(t => t.From == internalCreateMessage.From &&
t.To == newContractAddress &&
t.Value == internalCreateMessage.Amount)));
Assert.True(result.IsSuccess);
Assert.NotNull(result.Success);
Assert.Equal(newContractAddress, result.Success.ContractAddress);
Assert.Equal(vmExecutionResult.Result, result.Success.ExecutionResult);
Assert.Equal(GasPriceList.BaseCost, result.GasConsumed);
}
