public void Keep_in_cache()
{
StateProvider provider = new StateProvider(new StateTree(new MemDb()), Substitute.For <IDb>(), Logger);
provider.CreateAccount(_address1, 0);
provider.Commit(Frontier.Instance);
provider.GetBalance(_address1);
provider.UpdateBalance(_address1, 1, Frontier.Instance);
provider.Restore(-1);
provider.UpdateBalance(_address1, 1, Frontier.Instance);
provider.Restore(-1);
provider.UpdateBalance(_address1, 1, Frontier.Instance);
provider.Restore(-1);
Assert.AreEqual(new BigInteger(0), provider.GetBalance(_address1));
}
public void Eip_158_zero_value_transfer_deletes()
{
StateTree tree = new StateTree(new MemDb());
StateProvider frontierProvider = new StateProvider(tree, Substitute.For <IDb>(), Logger);
frontierProvider.CreateAccount(_address1, 0);
frontierProvider.Commit(Frontier.Instance);
StateProvider provider = new StateProvider(tree, Substitute.For <IDb>(), Logger);
provider.UpdateBalance(_address1, 0, SpuriousDragon.Instance);
provider.Commit(SpuriousDragon.Instance);
Assert.False(provider.AccountExists(_address1));
}
public void Restore_in_the_middle()
{
byte[] code = new byte[] { 1 };
StateProvider provider = new StateProvider(new StateTree(new MemDb()), Substitute.For <IDb>(), Logger);
provider.CreateAccount(_address1, 1);
provider.UpdateBalance(_address1, 1, Frontier.Instance);
provider.IncrementNonce(_address1);
Keccak codeHash = provider.UpdateCode(new byte[] { 1 });
provider.UpdateCodeHash(_address1, codeHash, Frontier.Instance);
provider.UpdateStorageRoot(_address1, Hash2);
Assert.AreEqual(BigInteger.One, provider.GetNonce(_address1));
Assert.AreEqual(BigInteger.One + 1, provider.GetBalance(_address1));
Assert.AreEqual(code, provider.GetCode(_address1));
provider.Restore(4);
Assert.AreEqual(BigInteger.One, provider.GetNonce(_address1));
Assert.AreEqual(BigInteger.One + 1, provider.GetBalance(_address1));
Assert.AreEqual(code, provider.GetCode(_address1));
provider.Restore(3);
Assert.AreEqual(BigInteger.One, provider.GetNonce(_address1));
Assert.AreEqual(BigInteger.One + 1, provider.GetBalance(_address1));
Assert.AreEqual(code, provider.GetCode(_address1));
provider.Restore(2);
Assert.AreEqual(BigInteger.One, provider.GetNonce(_address1));
Assert.AreEqual(BigInteger.One + 1, provider.GetBalance(_address1));
Assert.AreEqual(new byte[0], provider.GetCode(_address1));
provider.Restore(1);
Assert.AreEqual(BigInteger.Zero, provider.GetNonce(_address1));
Assert.AreEqual(BigInteger.One + 1, provider.GetBalance(_address1));
Assert.AreEqual(new byte[0], provider.GetCode(_address1));
provider.Restore(0);
Assert.AreEqual(BigInteger.Zero, provider.GetNonce(_address1));
Assert.AreEqual(BigInteger.One, provider.GetBalance(_address1));
Assert.AreEqual(new byte[0], provider.GetCode(_address1));
provider.Restore(-1);
Assert.AreEqual(false, provider.AccountExists(_address1));
}
public void Update_balance_on_non_existing_acccount_throws()
{
StateProvider provider = new StateProvider(new StateTree(new MemDb()), Substitute.For <IDb>(), Logger);
Assert.Throws <InvalidOperationException>(() => provider.UpdateBalance(TestObject.AddressA, 1.Ether(), Olympic.Instance));
}