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| pragma solidity >=0.4.22 <0.7.0; | |
| import "remix_tests.sol"; | |
| import "remix_accounts.sol"; | |
| import "../ERC20.sol"; | |
| contract ERC20Test is ERC20 { | |
| string testName = "MyToken"; | |
| string testSymbol = "MTN"; | |
| uint8 testDecimals = 2; | |
| uint testTotalSupply = 1000000; | |
| address acc0; | |
| address acc1; | |
| address acc2; | |
| bool account1Approved; | |
| bool account2Approved; | |
| constructor() public ERC20(testName, testSymbol, testDecimals, testTotalSupply) { | |
| } | |
| function beforeAll() public { | |
| acc0 = TestsAccounts.getAccount(0); | |
| acc1 = TestsAccounts.getAccount(1); | |
| acc2 = TestsAccounts.getAccount(2); | |
| } | |
| function beforeEach() public { | |
| transfer(acc1, 10000); | |
| transfer(acc2, 10000); | |
| } | |
| function afterEach() public { | |
| if (account1Approved) { | |
| transferFrom(acc1, acc0, balanceOf(acc1)); | |
| } | |
| if (account2Approved) { | |
| transferFrom(acc2, acc0, balanceOf(acc2)); | |
| } | |
| } | |
| /// #sender: account-1 | |
| function approveAccount1() public { | |
| approve(acc0, uint(-1)); | |
| account1Approved = true; | |
| } | |
| /// #sender: account-1 | |
| function approveAccount1_2() public { | |
| approve(acc2, uint(-1)); | |
| } | |
| /// #sender: account-2 | |
| function approveAccount2() public { | |
| approve(acc0, uint(-1)); | |
| account2Approved = true; | |
| } | |
| function checkName() public { | |
| Assert.equal(name, testName, "invalid value"); | |
| } | |
| function checkSymbol() public { | |
| Assert.equal(symbol, testSymbol, "invalid value"); | |
| } | |
| function checkDecimals() public { | |
| Assert.equal(uint(decimals), uint(testDecimals), "invalid value"); | |
| } | |
| function checkBalanceOf() public { | |
| Assert.equal(balanceOf(acc1), 10000, "invalid balance of account-1"); | |
| } | |
| function checkTotalSupply() public { | |
| Assert.equal(totalSupply, testTotalSupply, "invalid amount of totalSupply"); | |
| } | |
| /// #sender: account-1 | |
| function checkTransfer() public { | |
| Assert.ok(transfer(acc2, 5000), "transfer to acc1 has failed"); | |
| Assert.equal(balanceOf(acc1), 5000, "invalid balance of account-1"); | |
| Assert.equal(balanceOf(acc2), 15000, "invalid balance of account-2"); | |
| } | |
| function checkTransferThrowsOverdrawnBalance() public { | |
| ERC20 erc20 = new ERC20(testName, testSymbol, testDecimals, 10000); | |
| try erc20.transfer(acc0, 15000) returns (bool r) { | |
| Assert.ok(false, "transfer should fail"); | |
| } catch Error(string memory reason) { | |
| Assert.equal(reason, "overdrawn balance", reason); | |
| } | |
| } | |
| /// #sender: account-2 | |
| function checkTransferFrom() public { | |
| Assert.ok(transferFrom(acc1, acc2, 5000), "transfer to acc1 has failed"); | |
| Assert.equal(balanceOf(acc1), 5000, "invalid balance of account-1"); | |
| Assert.equal(balanceOf(acc2), 15000, "invalid balance of account-2"); | |
| } | |
| function checkApprove() public { | |
| Assert.ok(approve(acc1, 10000), "approve to acc1 has failed"); | |
| Assert.equal(allowance(acc0, acc1), 10000, "invalid amount of allowance"); | |
| } | |
| } |
Refer to "Unit Testing Plugin - Customization - 2. Custom Transaction Context" from the next link:
https://remix-ide.readthedocs.io/en/latest/unittesting.html#customization
import "remix_accounts.sol"; provides 10 test accounts, and you can get the address of those accounts by TestsAccounts.getAccount(index);. It is allowed to set index from 0 to 9. If you mean setting the sender to arbitrary address, I don't think it's possible.
I read docs and test my contract successfully. Thanks a lot!
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Hello,thanks for your shared ERC20_test.sol file in github. I have a question about changing sender in xx_test.sol. Just like line 96 "/// #sender: account-2". how to do it?