Questions tagged [test]
The test tag has no usage guidance.
65
questions
1
vote
2
answers
39
views
Run a single hardhat test file
I have a few test files:
./test/ContractA.test.js
const { expect } = require("chai");
describe("ContractA tests", function () {
it("does function one", async function (...
- 123
0
votes
0
answers
10
views
Test Function with Random Output
I have a test that runs against an Ethereum smart contract (Solidity vs ^0.6). The function I am testing outputs a value A, say, 90% of the time and B 10% of the time.
I want to test that this ratio ...
- 130
1
vote
1
answer
11
views
Passing an error testing suite in contract
hello how do i make a proper testing suite for error?
the contract has this modifier for freeMint() fn
modifier protectTier(uint256 _level) {
require(
_level != privateTier, &...
- 111
1
vote
1
answer
24
views
Using modifiers in Foundry `test`
Is it a good practice to create modifiers in Foundry tests?
When testing cases, that share significant number of steps, but not that much that you want to create a separate testContract for them, with ...
0
votes
0
answers
16
views
expect revert breaking test
I have this function I expect to revert, unfortunately , it is breaking my tests.
pwn = attackPwned.connect(pwner).pwnEm({
value: parseEther("1").toString(),
});
...
- 1,198
0
votes
1
answer
18
views
How should I approach testing functions that call already deployed contracts? [ethers.js] [chai] [mocha]
Suppose my contract utilizes the WETH contract (address 0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2) in some manner.
I can write test cases with Chai/Mocha just fine for most cases (they're "...
2
votes
1
answer
27
views
Truffle contract factory test with Javascript
Here is my smart contract source code.
// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.9;
contract CampaignFactory {
address[] public deployedCampaigns;
function createCampaign(uint ...
- 51
0
votes
1
answer
124
views
Sending multiple transactions in a block using Hardhat test network
Hardhat's test network, defaultNetwork: "hardhat" in config, automatically mines a block every time a transaction is sent by default.
This is problematic for situations where I want to test ...
- 626
0
votes
1
answer
38
views
Test if a smart contract function has been called
In my hardhat project I'm testing my smart contracts using chai.
For the sake of simplicity let's assume my contract is:
contract MyContract {
function a() external {
b();
}
function b() ...
- 523
1
vote
1
answer
116
views
How to write unit test in hardhat?
I´m new to solidity and wonder how I`m writing a uint test for this contract in hardhat:
//SPDX-License-Identifier: Unlicense
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/utils/...
- 27
0
votes
0
answers
86
views
Mocking and testing UniswapV2's swapExactETHForTokens in brownie: VirtualMachineError: revert: Index out of range
I'm at a loss with one particular brownie test I wrote, that relies on a mock I've written for Uniswap V2's swapExactETHForTokens, the code of which can be found below:
In MockUniswapV2.sol:
import &...
- 1
0
votes
1
answer
65
views
Truffle default account private keys
Is there a way in truffle develop tests to access the list of private keys in the same way we can access the list of accounts?
Basically, for every contract I need to test, the truffle test contract ...
- 119
1
vote
2
answers
166
views
Truffle Chai Assertion Error with Truffle Unit Cases
Problem: facing an issue with the below Truffle test case while trying to Implement the ERC20 token in my contract.
contract("Token Test", async(accounts) => {
const[deployerAccount, ...
- 11
0
votes
1
answer
30
views
Can someone please tell me what i have wrong here
function calculateSplitPercent() public {
for(uint256 i = 0; i >= uniqueIdCounter; i++) {
uint256 spliPercent = balanceOf[uniqueIdToAddress[i]].div(totalFunded).mul(100);
...
0
votes
1
answer
33
views
I can't figure out why my test dont pass
I always get this an error when i run my test, i dont know what to do anymore
you can test at my repository on github here
1
vote
0
answers
190
views
experiencing "RangeError: Maximum call stack size exceeded" with hardhat mainnet fork, when calling contract names on chain
I am trying to test my contract against mainnet using the hardhat fork mechanism,
I am using alchemy as my network provider and trying to retrieve the contract names from mainnet
after creating ERC721 ...
- 11
0
votes
2
answers
123
views
Understand the output of eth-gas-reporter
So, I am using the eth-gas-reporter package to understand how much gas functions costs (via hardhat test). But I don't understand the output. What is the meaning of 5 gwei/gas,calls, what are the ...
- 128
1
vote
1
answer
333
views
How to spoof accounts using Foundry?
Currently using Foundry & Hardhat for development, Foundry for testing & Hardhat for deployment. I'm trying to fuzz a test input of a function that adds an address to a whitelist and I need a ...
- 45
0
votes
1
answer
563
views
Convert big number to number on hardhat tests
Sorry for the newbie question. There are a lot of solutions but non of them worked for me. I am getting an account's balance with
const balance_before = await ethers.provider.getBalance(redeemer....
- 128
0
votes
1
answer
1k
views
Rinkeby faucet not working. Please help [duplicate]
Trying to send some test ETH to wallet but Rinkeby faucet not working. It says insufficient funds for gas * price + value. Looks like the queue is backed up for 2 days also.
Is there a solution for ...
0
votes
1
answer
37
views
how to subctract in type script big numbers?
I'm trying to to subctract in type script big numbers, but getting error...
const supply1 = 100000;
const _amount = 100;
const supply = ethers.utils.parseEther(`${supply1}`);
const diff = supply - ...
- 79
0
votes
2
answers
373
views
How to unit-test a contract using chainlink VRF v2?
I have seen similar questions using the chainlink VRF v1 but I don't manage to make them work.
I have tried to:
create a subscription on rinkeby chainlink
add the address of my locally deployed ...
- 159
0
votes
1
answer
131
views
TypeError: nft.createToken(...) is not a function error
I created an ERC721 token using openzeppelin like this:
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/token/ERC721/...
- 101
1
vote
1
answer
193
views
Hardhat stuck testing in mainnet by default
I'm new to hardhat and tried to run some tests. Everything works fine until I try to execute payable functions. Addresses generated with ethers.getSigners(); have no eth on them. Which made me realise ...
- 21
0
votes
0
answers
9
views
How to fix the errors in appveyor
I submit a PR to go-ethereum
I had tested the code on my local ubuntu server with go run build/ci.go test -dlgo -coverage and it returns OK,but there are lots of errors in PR's action
I don't known ...
- 1
0
votes
1
answer
37
views
Undeclared Identifier in Payable Function
I want to call a contracts functions from another contract for hardhat-gas-reporter purposes however I keep getting undeclared identifier here. What am I doing wrong?
contract BaseRosie is Ownable, ...
- 1
0
votes
1
answer
212
views
Brownie : Contract Functionality not available in local environment
I have set up a new brownie project (brownie bake yearn strategy mix). When I try running tests I get this error :
brownie.exceptions.BrownieEnvironmentError: Functionality not available in local ...
- 1
0
votes
1
answer
237
views
How do i get mocha's before() hook to work properly?
This is the test code im trying to run:
const {expect} = require("chai");
const {ethers} = require("hardhat");
const {SignerWithAddress} = require("@nomiclabs/hardhat-ethers/...
- 1
0
votes
0
answers
17
views
I'm using brownie for testing contracts but its stuck like that in the image
I made a project folder using brownie. I can deploy the contract from the scripts folder but when I test it it's stuck I can't find anything that solves the problem.
0
votes
1
answer
25
views
Should I care about these benchmark values?
Let's say I have a contract which, for the sake of this post, inherits OpenZeppelin's Ownable. I made a minor update (in terms of code / complexity: an override & revert to disable a method). Then ...
- 158
0
votes
0
answers
11
views
Remix price token implementation error
Please help me with the implementation of this contract.
Blockquote//
//AggregatorV3Interface internal priceFeed;
/**
* Network: Kovan
* Aggregator: ETH/USD
* Address: ...
0
votes
0
answers
9
views
Why don't we have to import web3.js into testing js files? [duplicate]
As a newbie to solidity, this is my code for testing some smart contract that I wrote, by
following a tutorial. The name of the file is "EthSwap.test.js" and I'm using "truffle".
...
- 143
0
votes
0
answers
11
views
How to solve Rinkeby Authenticated Faucet reCaptcha thinking I am a bot? [duplicate]
I am trying to get Rinkeby Ether on the above mentioned website and it keeps not giving me any. When I click "Give me Ether" it does not even show any popup to prove I'm a human (like, &...
- 101
0
votes
0
answers
32
views
getBalance() returns huge value
I'm testing method for transfering tokens to another address:
it("Should transfer all tokens to address1", async function () {
await hardhatDonation.donate({
...
3
votes
2
answers
1k
views
Network ropsten doesn't show in metamask
Why I can't change the network to Ropsten Test Network? It doesn't show up in pop up menu.
- 71
1
vote
4
answers
113
views
How to inject a fake value while testing a contract?
I'm used to Java mocks, where I could access and modify private values. As we are on our local machine and own ethereum node, we may do the same.
My problem is I want to modify a required address. ...
- 113
1
vote
1
answer
1k
views
How to run hardhat tests on a testnet?
I want to run my tests on testnet, mainly because I need to test chainlink VRF. How can I do that?
this is my hardhat.config.js:
require("@nomiclabs/hardhat-ethers");
require("@...
- 353
0
votes
2
answers
640
views
How to use changeEtherBalance from waffle-hardhat?
I want to check if the ether balance of an account decreased after the transaction using changeEtherBalance I tried to follow the waffle docs but couldn't do it either.
await token.connect(...
- 353
0
votes
1
answer
584
views
Returning a uint256 array from contract, and parsing in test
I have an ERC721 contract that mints an NFT. I added a function that mints multiple NFTs in one call. I tried returning the token ids from that function, but I cannot write the test code to get them.
...
1
vote
1
answer
453
views
How can I mock ERC20 in build-in truffle test suite?
I want to test my contract using truffle test which required a mock ERC20.
I've found this example in Github and also this thread.
const ERC20 = artifacts.require("ERC20");
I've tried but ...
- 135
2
votes
1
answer
219
views
How to mock out a signed transaction w/ Waffle Mocks?
When applying Waffle mock to simulate a contract method that must be explicity signed an error is thrown:
Error: Contract with a Signer cannot override from (operation="overrides.from", code=...
0
votes
1
answer
74
views
How to use bn-chai in a typescript test script?
I would like to use bn-chai plugin for chai in a test script written in typescript.
I imported (the official documentation uses require) the dependencies and set chai according documentation:
import { ...
5
votes
0
answers
697
views
Hardhat: InvalidInputError: sender doesn't have enough funds to send tx
I am getting following error:
InvalidInputError: sender doesn't have enough funds to send tx. The max upfront cost is: 1720878550726790368 and the sender's account only has: 47925025381294726
I am ...
- 57
1
vote
3
answers
2k
views
How to debug a solidity test
I am using ganache and truffle to write some tests in solidity (following the example in https://www.trufflesuite.com/docs/truffle/testing/writing-tests-in-solidity).
I am getting the usual, not ...
- 121
0
votes
0
answers
84
views
Initialise struct with nested mappings in a truffle test
I am writing a test following the following examples:
https://www.trufflesuite.com/docs/truffle/testing/writing-tests-in-solidity
In the test I need to define a struct located in the storage.
I wrote ...
- 121
1
vote
0
answers
21
views
Ropstens test net. How do I solve this?
The picture below shows the wallet status of the Ropstens test server.
How long do I have to wait to resolve it?
How do I solve this?
Where should I ask for help?
My wallet is not working.
- 11
0
votes
2
answers
75
views
Remix says that I got undeclared variable in my test contract when trying to run it, when it is declared in the original contract. How to fix?
Basically I need to get the hash from the function in the original contract, and for that the function makeBet() requires some input. The function looks like this:
pragma solidity >=0.8.0 <0.9.0;...
- 43
1
vote
3
answers
5k
views
change transaction msg.value and msg.sender on hardhat test
I have a lottery kind of app for which users send money to a contract that at the time pays rewards. Simplified, the method I'm trying to test is something like this:
struct Bet {
address payable ...
- 217
0
votes
1
answer
111
views
Should you use call() when you call solidity functions from Javascript tests
Let's say my solidity code is
contract MetaCoin {
uint256 public balance = 0;
function getBalance() public view returns(uint) {
return balance
}
}
Let's say I want to call the getBalance ...
- 75
3
votes
1
answer
812
views
Openzeppelin test helper with hardhat config and tests
I'm using hardhat and I added a task to manipulate time in the hardhat.config.js file which is working fine.
require("@nomiclabs/hardhat-waffle");
require("@nomiclabs/hardhat-truffle5&...
- 2,526