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Contracts: fix transfer function. (#733)

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This commit is contained in:
Sergey Pepyakin
2018-09-13 15:25:20 +03:00
committed by Gav Wood
parent 72fb60cb49
commit 88ef57e4bd
2 changed files with 106 additions and 3 deletions
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substrate/srml/contract/src/tests.rs
+93 -2
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@@ -70,6 +70,8 @@ struct ExtBuilder {
existential_deposit: u64,
gas_price: u64,
block_gas_limit: u64,
transfer_fee: u64,
creation_fee: u64,
}
impl Default for ExtBuilder {
fn default() -> Self {
@@ -77,6 +79,8 @@ impl Default for ExtBuilder {
existential_deposit: 0,
gas_price: 2,
block_gas_limit: 100_000_000,
transfer_fee: 0,
creation_fee: 0,
}
}
}
@@ -93,6 +97,14 @@ impl ExtBuilder {
self.block_gas_limit = block_gas_limit;
self
}
fn transfer_fee(mut self, transfer_fee: u64) -> Self {
self.transfer_fee = transfer_fee;
self
}
fn creation_fee(mut self, creation_fee: u64) -> Self {
self.creation_fee = creation_fee;
self
}
fn build(self) -> runtime_io::TestExternalities<Blake2Hasher> {
let mut t = system::GenesisConfig::<Test>::default()
.build_storage()
@@ -103,8 +115,8 @@ impl ExtBuilder {
transaction_base_fee: 0,
transaction_byte_fee: 0,
existential_deposit: self.existential_deposit,
transfer_fee: 0,
creation_fee: 0,
transfer_fee: self.transfer_fee,
creation_fee: self.creation_fee,
reclaim_rebate: 0,
}.build_storage()
.unwrap(),
@@ -195,6 +207,85 @@ fn contract_transfer() {
});
}
#[test]
fn contract_transfer_takes_creation_fee() {
const CONTRACT_SHOULD_TRANSFER_VALUE: u64 = 6;
const CONTRACT_SHOULD_TRANSFER_TO: u64 = 9;
let code_transfer = wabt::wat2wasm(CODE_TRANSFER).unwrap();
with_externalities(&mut ExtBuilder::default().creation_fee(105).build(), || {
<CodeOf<Test>>::insert(1, code_transfer.to_vec());
Balances::set_free_balance(&0, 100_000_000);
Balances::increase_total_stake_by(100_000_000);
Balances::set_free_balance(&1, 11);
Balances::increase_total_stake_by(11);
assert_ok!(Contract::call(Origin::signed(0), 1, 3, 100_000, Vec::new()));
assert_eq!(
Balances::free_balance(&0),
// 3 - value sent with the transaction
// 2 * 10 - gas used by the contract (10) multiplied by gas price (2)
// 2 * 135 - base gas fee for call (by transaction)
// 2 * 135 - base gas fee for call (by the contract)
// 104 - (rounded) fee per creation (by the contract)
100_000_000 - 3 - (2 * 10) - (2 * 135) - (2 * 135) - 104,
);
assert_eq!(
Balances::free_balance(&1),
11 + 3 - CONTRACT_SHOULD_TRANSFER_VALUE,
);
assert_eq!(
Balances::free_balance(&CONTRACT_SHOULD_TRANSFER_TO),
CONTRACT_SHOULD_TRANSFER_VALUE,
);
});
}
#[test]
fn contract_transfer_takes_transfer_fee() {
const CONTRACT_SHOULD_TRANSFER_VALUE: u64 = 6;
const CONTRACT_SHOULD_TRANSFER_TO: u64 = 9;
let code_transfer = wabt::wat2wasm(CODE_TRANSFER).unwrap();
with_externalities(&mut ExtBuilder::default().creation_fee(105).transfer_fee(45).build(), || {
<CodeOf<Test>>::insert(1, code_transfer.to_vec());
Balances::set_free_balance(&0, 100_000_000);
Balances::increase_total_stake_by(100_000_000);
Balances::set_free_balance(&1, 11);
Balances::increase_total_stake_by(11);
// Create destination account here so we can check that transfer fee
// is charged (and creation fee is not).
Balances::set_free_balance(&CONTRACT_SHOULD_TRANSFER_TO, 25);
assert_ok!(Contract::call(Origin::signed(0), 1, 3, 100_000, Vec::new()));
assert_eq!(
Balances::free_balance(&0),
// 3 - value sent with the transaction
// 2 * 10 - gas used by the contract (10) multiplied by gas price (2)
// 2 * 135 - base gas fee for call (by transaction)
// 44 - (rounded from 45) fee per transfer (by transaction)
// 2 * 135 - base gas fee for call (by the contract)
// 44 - (rounded from 45) fee per transfer (by the contract)
100_000_000 - 3 - (2 * 10) - (2 * 135) - 44 - (2 * 135) - 44,
);
assert_eq!(
Balances::free_balance(&1),
11 + 3 - CONTRACT_SHOULD_TRANSFER_VALUE,
);
assert_eq!(
Balances::free_balance(&CONTRACT_SHOULD_TRANSFER_TO),
25 + CONTRACT_SHOULD_TRANSFER_VALUE,
);
});
}
#[test]
fn contract_transfer_oog() {
const CONTRACT_SHOULD_TRANSFER_TO: u64 = 9;