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Return transaction response for ERC20 functions 

Allows callers to wait for confirmation of the
transaction
This commit is contained in:
Mark Spanbroek 2023-07-04 15:53:46 +02:00 committed by markspanbroek
parent d7b7f67afb
commit 5ed3f15706
3 changed files with 12 additions and 13 deletions
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6
ethers/erc20.nim
View File

@ -46,17 +46,17 @@ method allowance*(token: Erc20Token,
method transfer*(token: Erc20Token,
recipient: Address,
amount: UInt256) {.base, contract.}
amount: UInt256): ?TransactionResponse {.base, contract.}
## Moves `amount` tokens from the caller's account to `recipient`.
method approve*(token: Erc20Token,
spender: Address,
amount: UInt256) {.base, contract.}
amount: UInt256): ?TransactionResponse {.base, contract.}
## Sets `amount` as the allowance of `spender` over the caller's tokens.
method transferFrom*(token: Erc20Token,
spender: Address,
recipient: Address,
amount: UInt256) {.base, contract.}
amount: UInt256): ?TransactionResponse {.base, contract.}
## Moves `amount` tokens from `from` to `to` using the allowance
## mechanism. `amount` is then deducted from the caller's allowance.

11
testmodule/testContracts.nim
View File

@ -9,7 +9,6 @@ import ./miner
import ./mocks
type
TestToken = ref object of Erc20Token
method mint(token: TestToken, holder: Address, amount: UInt256): ?TransactionResponse {.base, contract.}
@ -108,8 +107,8 @@ for url in ["ws://localhost:8545", "http://localhost:8545"]:
let signer0 = provider.getSigner(accounts[0])
let signer1 = provider.getSigner(accounts[1])
discard await token.connect(signer0).mint(accounts[0], 100.u256)
await token.connect(signer0).transfer(accounts[1], 50.u256)
await token.connect(signer1).transfer(accounts[2], 25.u256)
discard await token.connect(signer0).transfer(accounts[1], 50.u256)
discard await token.connect(signer1).transfer(accounts[2], 25.u256)
check (await token.connect(provider).balanceOf(accounts[0])) == 50.u256
check (await token.connect(provider).balanceOf(accounts[1])) == 25.u256
check (await token.connect(provider).balanceOf(accounts[2])) == 25.u256
@ -150,8 +149,8 @@ for url in ["ws://localhost:8545", "http://localhost:8545"]:
let subscription = await token.subscribe(Transfer, handleTransfer)
discard await token.connect(signer0).mint(accounts[0], 100.u256)
await token.connect(signer0).transfer(accounts[1], 50.u256)
await token.connect(signer1).transfer(accounts[2], 25.u256)
discard await token.connect(signer0).transfer(accounts[1], 50.u256)
discard await token.connect(signer1).transfer(accounts[2], 25.u256)
check eventually transfers == @[
Transfer(receiver: accounts[0], value: 100.u256),
@ -175,7 +174,7 @@ for url in ["ws://localhost:8545", "http://localhost:8545"]:
check eventually transfers.len == 1
await subscription.unsubscribe()
await token.connect(signer0).transfer(accounts[1], 50.u256)
discard await token.connect(signer0).transfer(accounts[1], 50.u256)
await sleepAsync(100.millis)
check transfers.len == 1

8
testmodule/testErc20.nim
View File

@ -51,7 +51,7 @@ for url in ["ws://localhost:8545", "http://localhost:8545"]:
check (await token.balanceOf(accounts[0])) == 100.u256
check (await token.balanceOf(accounts[1])) == 0.u256
await token.transfer(accounts[1], 50.u256)
discard await token.transfer(accounts[1], 50.u256)
check (await token.balanceOf(accounts[0])) == 50.u256
check (await token.balanceOf(accounts[1])) == 50.u256
@ -63,7 +63,7 @@ for url in ["ws://localhost:8545", "http://localhost:8545"]:
check (await token.balanceOf(accounts[0])) == 100.u256
check (await token.balanceOf(accounts[1])) == 0.u256
await token.approve(accounts[1], 50.u256)
discard await token.approve(accounts[1], 50.u256)
check (await token.allowance(accounts[0], accounts[1])) == 50.u256
check (await token.balanceOf(accounts[0])) == 100.u256
@ -83,13 +83,13 @@ for url in ["ws://localhost:8545", "http://localhost:8545"]:
check (await token.balanceOf(senderAccount)) == 100.u256
check (await token.balanceOf(receiverAccount)) == 0.u256
await token.approve(receiverAccount, 50.u256)
discard await token.approve(receiverAccount, 50.u256)
check (await token.allowance(senderAccount, receiverAccount)) == 50.u256
check (await token.balanceOf(senderAccount)) == 100.u256
check (await token.balanceOf(receiverAccount)) == 0.u256
await token.connect(receiverAccountSigner).transferFrom(senderAccount, receiverAccount, 50.u256)
discard await token.connect(receiverAccountSigner).transferFrom(senderAccount, receiverAccount, 50.u256)
check (await token.balanceOf(senderAccount)) == 50.u256
check (await token.balanceOf(receiverAccount)) == 50.u256