97 lines
3.3 KiB
Nim
97 lines
3.3 KiB
Nim
import std/json
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import pkg/asynctest
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import pkg/questionable
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import pkg/stint
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import pkg/ethers
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import pkg/ethers/erc20
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import ./hardhat
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import ./miner
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import ./mocks
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type
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TestToken = ref object of Erc20Token
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method mint(token: TestToken, holder: Address, amount: UInt256): ?TransactionResponse {.base, contract.}
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suite "ERC20":
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var token, token1: Erc20Token
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var testToken: TestToken
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var provider: JsonRpcProvider
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var snapshot: JsonNode
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var accounts: seq[Address]
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setup:
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provider = JsonRpcProvider.new("ws://localhost:8545")
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snapshot = await provider.send("evm_snapshot")
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accounts = await provider.listAccounts()
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let deployment = readDeployment()
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testToken = TestToken.new(!deployment.address(TestToken), provider.getSigner())
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token = Erc20Token.new(!deployment.address(TestToken), provider.getSigner())
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teardown:
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discard await provider.send("evm_revert", @[snapshot])
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test "retrieves basic information":
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check (await token.name()) == "TestToken"
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check (await token.symbol()) == "TST"
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check (await token.decimals()) == 12
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check (await token.totalSupply()) == 0.u256
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check (await token.balanceOf(accounts[0])) == 0.u256
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check (await token.allowance(accounts[0], accounts[1])) == 0.u256
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test "transfer tokens":
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check (await token.balanceOf(accounts[0])) == 0.u256
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check (await token.allowance(accounts[0], accounts[1])) == 0.u256
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discard await testToken.mint(accounts[0], 100.u256)
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check (await token.totalSupply()) == 100.u256
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check (await token.balanceOf(accounts[0])) == 100.u256
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check (await token.balanceOf(accounts[1])) == 0.u256
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await token.transfer(accounts[1], 50.u256)
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check (await token.balanceOf(accounts[0])) == 50.u256
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check (await token.balanceOf(accounts[1])) == 50.u256
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test "approve tokens":
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discard await testToken.mint(accounts[0], 100.u256)
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check (await token.allowance(accounts[0], accounts[1])) == 0.u256
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check (await token.balanceOf(accounts[0])) == 100.u256
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check (await token.balanceOf(accounts[1])) == 0.u256
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await token.approve(accounts[1], 50.u256)
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check (await token.allowance(accounts[0], accounts[1])) == 50.u256
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check (await token.balanceOf(accounts[0])) == 100.u256
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check (await token.balanceOf(accounts[1])) == 0.u256
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test "transferFrom tokens":
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let senderAccount = accounts[0]
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let receiverAccount = accounts[1]
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let receiverAccountSigner = provider.getSigner(receiverAccount)
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check (await token.balanceOf(senderAccount)) == 0.u256
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check (await token.allowance(senderAccount, receiverAccount)) == 0.u256
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discard await testToken.mint(senderAccount, 100.u256)
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check (await token.totalSupply()) == 100.u256
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check (await token.balanceOf(senderAccount)) == 100.u256
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check (await token.balanceOf(receiverAccount)) == 0.u256
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await token.approve(receiverAccount, 50.u256)
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check (await token.allowance(senderAccount, receiverAccount)) == 50.u256
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check (await token.balanceOf(senderAccount)) == 100.u256
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check (await token.balanceOf(receiverAccount)) == 0.u256
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await token.connect(receiverAccountSigner).transferFrom(senderAccount, receiverAccount, 50.u256)
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check (await token.balanceOf(senderAccount)) == 50.u256
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check (await token.balanceOf(receiverAccount)) == 50.u256
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check (await token.allowance(senderAccount, receiverAccount)) == 0.u256
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