Questions tagged [truffle-test]
The truffle-test tag has no usage guidance.
296
questions
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17
views
Can't pass Truffle test with an uint256 array as event property
I have this simple test in truffle:
it("should emit the correct Transfer event", async function() {
await this.contractNFT.multiSafeMint(accounts[0], "CID/metadata.json", 3, {...
- 33
0
votes
0
answers
23
views
How to transfer money inside truffle console?
When I log in to the truffle console I see there are a bunch of addresses filled with money. I need to transfer an amount to the account that I am using with Metamask. (I don't want to import the ...
- 173
1
vote
0
answers
22
views
Deactivate clean-room environment in truffle
Everything is in the question, does anyone have a way to prevent the redeployment of the contract every time you run a test and keep using the same "contract" feature ?
Edit : I've found it, ...
- 41
0
votes
0
answers
32
views
Truffle migrations - it doesn't recognize the network from external file, why?
1_initial_migration.js file:
const Globals = require("../globals.js");
const Migrations = artifacts.require("Migrations");
const Test = artifacts.require("Test");
...
- 761
1
vote
1
answer
35
views
What are the Solidity contracts that the Infura NFT SDK uses? How can one test these contracts?
I am trying to make use of the Infura NFT SDK that would work with another contract that I developed. I wanted to make some unit tests locally, however, searching on their documentation and on the ...
- 51
0
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0
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131
views
How ganache unlocks account that doesn't belong to me?
In ganache mainnet fork, I can unlock any account and make transactions on behalf of that account:
npx ganache-cli -p 8545 -f https://mainnet.infura.io/v3/$WEB3_INFURA_PROJECT_ID --unlock $...
- 13
1
vote
1
answer
220
views
Error: *** Deployment Failed *** "Migrations" -- Returned error: no pending block
When i run "truffle test" in VS on my basic helloworld smart contract, i get the error message:
"Error: *** Deployment Failed ***
"Migrations" -- Returned error: no pending ...
- 23
0
votes
1
answer
197
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Truffle/Ganache Gas Limit Increase [duplicate]
I had posted on the GitHub Discussion as well. I have this massive smart contract and my goal is to study the scalability of the contract. The values work for smaller sizes. However, it fails at ...
1
vote
1
answer
106
views
About try-catch error(Truffle Test）
I am learning solidity by transcribing code from "Practical Smart Contract Development with Solid and Etherium"(OREILLY).
I am studying hard but struggling along the way.
It is to be tested ...
- 15
0
votes
1
answer
63
views
Truffle: { Error: Invalid number of parameters for "undefined". Got 0 expected 1! at module.exports
I am trying to execute the following smart contract using Truffle:
pragma solidity 0.5.16;
contract Phishable {
address public owner;
constructor (address _owner) public{
owner = ...
- 1,416
1
vote
1
answer
121
views
Why am I getting incorrect WBTC when swapping it with DAI using Uniswap?
Hi I created a smart contract but when I am swaping 1 Million DAI with WBTC tokens I am getting only ~3379786784 WEI (~34 WBTC) but when I am checking its value on UNISWAP website it is showing 43 ...
1
vote
0
answers
55
views
Unit testing a double mapping
How to call a double mapping in unit tests?
Here is an extract of our contrat:
contract StackingPool {
struct Staker {
uint128 amount; // Amount token stake
uint256 date; // Date ...
- 21
0
votes
1
answer
129
views
"Error: Returned error: VM Exception while processing transaction" when I run truffle test
I'm running my unit test with truffle in ganache environment.
Here's my Lottery SC:
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@...
- 15
0
votes
1
answer
111
views
"insuffiecient allowance" running my unit test
I'm developing in remix a lottery SC. I have a problem when I run buyTicket() function. On remix I fix it giving approve to SC address from erc20 function, but I don't know how to do it when I run my ...
- 15
0
votes
1
answer
94
views
Error: No events were emitted
I am coding an ICO project. However when trying to make the token purchase I got the following error:
Using network 'test'.
Compiling your contracts...
===========================
> Compiling .\...
1
vote
1
answer
17
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
0
votes
1
answer
107
views
Truffle Struct Test How To Call
how to call struct properties in truffle test ? for public variables we can use .call() but i cant figure out how to do with struct properties
how to access properties of struct ?
with any other ...
0
votes
1
answer
125
views
truffle test does not run tests when test network is not specified
trying to run a test for my contract, but truffle test is just compiling the contracts and not running anything. my truffle.config does not specify a test network, which should result in truffle ...
1
vote
0
answers
11
views
Truffle test, is it possible and useful to test types?
All is in the question : is it possible and useful and to test types ?
Or don't need to test it because Solidity is a statically typed programming language (it's already done).
I did many researches ...
- 21
0
votes
2
answers
148
views
How to use truffle-assertions to check if a constructor will revert?
Say I have a contract:
contract Reverts{
constructor(param1){
require(param1);
}
}
If param1 is false, the constructor should fail and revert state.
truffle-assertions allows me to ...
- 274
0
votes
1
answer
52
views
Storage arrays don't store my input values
I checked other similar topics but I still can't figure out how to solve my problem, the code below is part of my contract,
pragma solidity ^0.8.13;
contract MyContract{
address owner;
...
0
votes
1
answer
290
views
Testing `approve` function
I would like to test a contract where I use the approve function of an ERC20 token.
Is there any test suite that allows doing that?
truffle? hardhat?
Any suggestion would be highly appreciated!
- 101
1
vote
1
answer
113
views
How to write the javascript test code on whether a smart contract function is successfully executed or not?
I wrote a lottery smart contract and gonna to test an "enter" functionality of the smart contract.
The below code is javascript test code for the "enter" function of the smart ...
- 71
1
vote
1
answer
2k
views
why vs code not recognizing the node version
when I install a "truffle for vs code" extension in vs code and try to create a new solidity project then nodejs version is not recognized but I have installed nodejs's correct version.
- 21
0
votes
1
answer
437
views
Truffle Test Console Logging
I'm having some trouble with Truffle logging configuration. During tests, each submitted transaction and its hash is logged on the console and this one becomes full of useless messages that disturb ...
- 1
0
votes
1
answer
309
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 ...
- 363
1
vote
1
answer
297
views
truffle installed but not working
I'm using node version 12.20.2 and npm version 6.14.11 and installed truffle with cmd as administrator, the truffle framework version 5.5.12 has been installed but when I run any command in the vs ...
0
votes
1
answer
94
views
unable to install truffle
I'm trying to install truffle on node version 8.9.0 but it shows it has been installed and when I try to do anything on that, throws this error.
C:\Users\com\AppData\Roaming\nvm\v8.9.0\node_modules\...
2
votes
0
answers
82
views
Eth-gas-reporter typeError
I am trying to understand how the eth-gas-reporter works but I keep getting
TypeError: invalid reporter 'eth-gas-reporter' when I ran truffle test.
Specifically the output is:
Using network '...
- 21
0
votes
1
answer
43
views
Why is there a difference in ether sent and difference in balance before and after transaction?
I'm doing a simple Dapp where I register a star as an NFT, using openzeppelin ERC721 contract, and then I can put it up for sale and buy it. In truffle I'm writing a test where I create a star, put it ...
- 23
0
votes
1
answer
66
views
Requires working strangely / truffle / tests
My contract
// SPDX-License-Identifier: GPL-3.0
pragma solidity 0.8.13;
import '@openzeppelin/contracts/access/Ownable.sol';
contract GuessAndWin is Ownable{
string public hint;
string ...
- 11
0
votes
0
answers
46
views
Issue in test-environment install
I tried to install test-environment, it throws the error. Please advice on how to solve this.
npm ERR! enoent undefined ls-remote -h -t https://github.com/ethereumjs/ethereumjs-abi.git
PS E:\...
- 813
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0
answers
95
views
Truffle test throws an error in "before each" hook
Developing a flash loan which i use truffle to test my code,
david@LAPTOP-3KIH2P0K:/mnt/c/pr0/flash/FlashloanLeveragedYieldFarm$ truffle test
Using network 'development'.
Compiling your contracts...
=...
- 31
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0
answers
104
views
Truffle Testing, Javascript & Solidity Testing Use Case
I’ve been studying the truffle documentation and saw how little differences were detected between the way solidity testing and javascript testing works. This confuses me as a developer, the ...
0
votes
1
answer
823
views
mintNewPosition function of LiquidityExamples contract (Uniswap docs - V3) get reverted when trying to add liquidity
I am trying to interact with Uniswap V3 contracts. More specifically, I am trying to add liquidity to DAI - USDC pool. I am doing this locally by forking the Mainnet using ganache. This is my contract ...
- 11
1
vote
1
answer
68
views
Why Contract State not Persisted in Every Test Sequentially?
I have a smart contract in truffle project and want to test it. I have multiple tests sequentially which means contract's state after first test will be needed for the second test.
The problem is, it ...
- 229
0
votes
1
answer
81
views
Truffle Test: Using a contract instance as function parameter
I'm having a function IN A LIB that require a contract as parameter.
function createCalendarEntry(uint256 releaseTime,
SPToken token) public pure returns (CalendarEntry memory) {
return ...
- 1
0
votes
2
answers
1k
views
How to Automate End to End Testing For Etherium Dapps With Metamask?
I'm wondering what the best way to test the entire stack of a dapp is?
From UI -> to wallet connection -> web3.js and interacting with the smart contract?
In web2 we could just use something ...
- 103
0
votes
1
answer
414
views
toNumber is not a function while writing tests
I am trying to write a simple test to validate a condition, however it fails saying 'toNumber is not a function'
Here is the test condition
const quorum = await wallet.quorum;
assert(quorum.toNumber() ...
0
votes
1
answer
101
views
Javascript testing vs remix
So what would be the benefit of testing the smart contracts using javascript with truffle instead of remix? I just feel is really tedious. I'm guessing there is a reason, but I don't see it, so should ...
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1
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1
answer
117
views
How test uint from smartcontract with chai?
In my solidity smartcontract, I have a function to return a uint value :
function getUserBalance(address userAddress, address tokenAddress)
public
view
returns (uint256)
{
...
- 157
0
votes
1
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16
views
How do I assert this properly?
Say I want to make a test for this sample contract:
// assume we import OpenZeppelin's Ownable
contract Metaverse extends Ownable, ... {
...
// Assume this is just to experiment and learn.
...
- 200
1
vote
1
answer
743
views
Signing messages in Truffle tests
I use Truffle to develop locally and run tests with truffle test (letting it create a temporary local blockchain).
In one of my tests I need to sign a message and for that I need the test wallet's ...
- 133
0
votes
1
answer
293
views
withdraw function for withdraw ethereum token from a contract is behaving weird
I copy a withdrawal function from the solidity documentation and added it to my contract
function withdraw() public onlyOwner {
uint256 ownerBalance = address(this).balance;
require(...
3
votes
1
answer
590
views
Cannot retrieve uint Array from Struct in Solidity
I have the following struct in my contract
struct Transaction {
TransactionType transactionType;
uint256 id;
uint256 productId;
uint256 timestamp;
address from;
address to;
...
- 33
1
vote
1
answer
762
views
Error: Could not find artifacts for contract
I'm new to ethereum development and trying to test SimpleStorage contract using truffle:
I created file structure using turffle init and here is the files sturctur:
~/Desktop/truffle-test$ tree .
.
├──...
- 165
1
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1
answer
898
views
How to increase block.number in a truffle solidity test?
Is there any way to increase the block.number (e.g. mine a block) in a solidity based truffle test?
I am able to do this just fine with a javascript based test by making an RPC call to the evm, but I ...
- 153
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votes
0
answers
81
views
Truffle Test: Again (Error: Returned error: VM Exception while processing transaction: revert) with different SC
I posted a similar problem at:
similar with different SC but sorry no solution yet
Following are my smart contracts (SCs)
==
SC F1
pragma solidity 0.5.16;
contract F1{
address public owner;
uint ...
- 1,416
0
votes
1
answer
406
views
How to access mapping array and address of contract in truffle test
I have 3 contracts: sender, receiver and transferTest. I am getting error in transferTest due to an address array declared in the reciver contract:
receiver.sol:
pragma solidity ^0.5.8;
contract ...
- 1,416
1
vote
2
answers
3k
views
truffle test - Error: Contract has not been deployed to detected network (network/artifact mismatch)
As I excessively read all posts given and none solved my problem I'm opening this thread. Please don't consider every test useful as I'm in the development of useful tests. As mentioned it is about ...
- 112