Questions tagged [truffle-test]
The truffle-test tag has no usage guidance.
225
questions
0
votes
1answer
20 views
Assertion Error
Solidity file
pragma solidity ^0.5.0;
contract Todo {
struct User {
uint id;
string name;
}
User[] public users;
uint public nextId = 1;
function create(string memory name) public ...
0
votes
1answer
19 views
ERC721 testing transferFrom()
How can I test (truffle test or development console) the following:
await nft.transferFrom(accounts[0], accounts[1], 1);
await nft.transferFrom(accounts[1], accounts[0],1);
The second line throws
...
0
votes
1answer
18 views
How can I test my purchase function on the truffle with chai?
I'm trying to test my token buying function but I encounter an error, o facilitate understanding I will show the code
"Error: Returned error: VM Exception while processing transaction: revert&...
0
votes
1answer
18 views
Setting token balances in js test
I want to be able to set the token balance for Alice to 500 DAI & 500 USDT, however I have no clue how I am going to do that.
Is there a way you can set an account's balance before a test without ...
0
votes
0answers
18 views
Transferring aToken(aDAI) in my truffle tests reverts with unspecific error
I'm having issues with setting up a truffle test to transfer aTokens (aDAI) to my contract. I'm using Aave v2 and running ganache with a fork from mainnnet.
This is what I did so far:
1- Started a ...
0
votes
1answer
11 views
Interacting with existing Smart Contract deployed on test network like rinkeby from local test environment (truffle)
I have forked rinkeby network using ganache-cli as shown below
ganache-cli -f https://rinkeby.infura.io/v3/id --account="fsdfmsadklksmdflskamf"
Now, I want to test my smart contract which ...
0
votes
1answer
12 views
Use smartcontract's ENUM in test scenarios in truffle
I have create a truffle project with this command:
truffle unbox react
Here is my smartcontract contracts/SimpleStorage.sol :
contract SimpleStorage {
enum MyEnum {
step1,
step2,
...
0
votes
1answer
20 views
Big numbers in truffle test assertion
Here is what i've done: I have create a project this way:
truffle unbox react
npm install @openzeppelin/test-helpers
I have keep SimpleStorage.sol sample contract and here is my test file:
const { BN,...
0
votes
0answers
15 views
Set a gas limit when sending a transaction in a truffle test scenario
I am writing truffle tests for a smartcontract.
I have create a truffle project with this command:
truffle unbox react
I have kept SimpleStorage.sol sample smartcontract. I have add some tests in ...
0
votes
1answer
17 views
Difference between contract.new and contract.deployed functions
I have create a basic truffle project and i am writing automated tests.
There is 2 ways to instantiate the smartcontract to test and i want to understand the difference between this 2 ways:
const ...
-1
votes
1answer
15 views
sync function syntax [closed]
What is the difference between this syntax:
beforeEach( async () => {
...
});
and this one:
beforeEach(async function() {
...
});
Thanks
0
votes
1answer
25 views
Truffle test: could not find local build/contracts
I have create a truffle project with this command:
truffle unbox react
I have run this commands:
npm install @openzeppelin/contracts
npm install @openzeppelin/test-helpers
npm install @openzeppelin/...
2
votes
1answer
34 views
Why do my truffle tests get much slower as I run more of them?
So I am currently building up a test suite for a project, and I have quite a few tests at this point. I am running into a problem however that truffle seems to run tests later in its execution much ...
0
votes
1answer
16 views
Truffle test: Problem with understanding the test
I am trying to understand the test provided at:
Tutorial
("Test balance after deposit", function() {
return SimpleBank.deployed().then(function(instance) {
sb = instance;
...
0
votes
0answers
24 views
Truffle test doesn't recognize estimateGas function
I'm trying to test my contracts using Truffle and Ganache, but I'm facing some problems with some functions. When I call a non view function, I'm getting the error "out of gas". Moreover, if ...
0
votes
2answers
14 views
Issue deploying a contract successfully with Truffle and ganache
Long story short my contract is not passing the deployment test using truffle, mocha, and chai.
I ran the code individually in the truffle console and it was returning an address just fine but it won'...
0
votes
0answers
19 views
Wrong contract balance shown by web3.eth.getBalance
I want to test if the balance updates when I send some eths
it("the balance matches the price of a person", async function(){
let instance = await People.deployed()
await instance....
0
votes
1answer
26 views
Truffle Test AssertionError: error message must contain revert
I can't figure out why this error occurs
Here my test js code:
var YarockToken = artifacts.require("./YarockToken.sol");
contract('YarockToken', function(accounts) {
var tokenInstance;
...
0
votes
0answers
298 views
Metamask RPC error -32603… {“error”:“revert”,“program_counter”:6758,“return”:“0x”}
I have a dApp that leverages ERC721 contract which allows users to upload images onto IPFS and transfer them to each other.
User A can upload images fine and transfer them fine to User B. Once ...
1
vote
1answer
19 views
How to resolve the issue while trying to test my contract
I'm new to blockchain development and can't figure out what I have done wrong. This is my smart contract Election :
pragma solidity ^0.5.0;
contract Election {
struct Candidate {
uint ...
0
votes
0answers
30 views
Truffle “test” is passing only 1 it(“”) test instead of showing “all 3 tests passed”
MyToken.sol
//// SPDX-License-Identifier: MIT
pragma solidity ^0.6.0;
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
contract MyToken is ERC20 {
constructor(uint256 ...
0
votes
0answers
23 views
“before each” hook error while run truffle test command
I ran truffle test command on my project for testing but I got an error like this:
"before each" hook for "1- should be return true Pauser Role for account[0]"
why I'm getting ...
2
votes
2answers
27 views
Importing openzeppelin-test-helpers
Somethings I need BN library for correct balanceOf assertion with 1e18 decimals, somettimes expectRevert. I see the different projects use it differently:
const { constants, time, ether, expectRevert }...
0
votes
0answers
10 views
truffle deployer - addess is still there without deploy
First Question:
// Stage deploying A before B
deployer.deploy(A);
deployer.deploy(B);
This is found on the truffle website. It says stage deploying A before B. So this must mean that deploying B ...
0
votes
1answer
64 views
Trying to run a truffle test after successful compile I have this Error: Invalid number of parameters for “undefined”. Got 0 expected 1!
Here is my deploy hello js file
const hello = artifacts.require('./HelloWorld');
module.exports = function(deployer){
deployer.deploy(hello);
};
And here is the contract code
pragma solidity^0.5....
0
votes
1answer
19 views
Synchronizing test and web3 enabled nodejs service
I have a test suite running in truffle, and an external web3 connected node service running - both connected to a ganache-cli network.
My problem is: my tests are supposed to pick up an event ...
0
votes
0answers
24 views
Truffle Test Error Revert in Contract Factory
I'm trying to create a contract factory that creates "Oracles". Oracles have state variables that are initialized in the contract constructor, and I'm trying to use Truffle Test to verify ...
2
votes
0answers
35 views
How to simulate time increase in Remix IDE?
In my JavaScript tests:
module.exports = {
increaseTime: (duration) => {
const id = Date.now();
return new Promise((resolve, reject) => {
web3.currentProvider.send({
...
0
votes
0answers
113 views
Truffle - multiple transactions per block
i try to simulate a large transaction load and therefore want to execute multiple transactions in a truffle test. I changed the block-time to five seconds and generate the transactions, but only one ...
0
votes
0answers
13 views
Transaction Callback Function Doesn't Run
I'm running the following code as part of a truffle test:
electionController = ElectionController.new(districtsNo,districtFactory.address,voteTokenFactory.address);
function createVoteToken(...
0
votes
0answers
14 views
SyntaxError when setting instance of deployed contract to token variable
I'm following this tutorial: https://www.youtube.com/watch?v=044h0ZI-fDI
At 22:45, the following command is run: DappToken.deployed().then(function(i){token=i;})
In the video, after this command is ...
2
votes
0answers
199 views
Conflicting solc versions on Truffle-test
I'm developing some smart contracts sing solc 0.7.0. I'm able to successfully compile and deploy the contracts, but when I try to run $truffle test I get the following error:
Using network '...
0
votes
1answer
22 views
Truffle test. Convert '0x0000000000000000' to zero. Assert it doesn't exist [duplicate]
I am writing a truffle javascript test and I need to test if a key in a mapping was deleted. After deleting it, its values are equal to '0x0000000...' . How can I test in a truffle javascript test ...
1
vote
1answer
132 views
Truffle test: how to get the block number of deployed contract?
In my test I would like to get the block or block number of when the contract was deployed.
const instance = await MyContract.deployed()
const contractDeploymentBlockNumber = await instance.?
0
votes
0answers
54 views
truffle solidity unit test modifiers: How do you test modifiers dependent on the sender account?
QUESTION: How do you write unit test code that would test that a non-owner can't execute a function modified by a requirement that they be the owner using in solidity and truffle?
I am trying to write ...
1
vote
0answers
30 views
Is Truffle test useful?
Hi there I came across "Truffle test". As a developer I feel like it's better to test code on remix for unit testing rather than wasting time on writing truffle test in javascript. What do ...
0
votes
0answers
52 views
Testing using Truffle unbox: Assert.equal error
I ran the pet shop project. It uses "truffle unbox". The petshop project at:
Petshop project using Assert.equal without any error
is able to execute Assert.equal command but when I am using ...
0
votes
0answers
56 views
Problem with Assert.equal
I am compiling the code available at using "truffle test":
https://michalzalecki.com/ethereum-test-driven-introduction-to-solidity/
pragma solidity 0.5.16;
import "truffle/Assert.sol&...
0
votes
0answers
95 views
Truffle test stuck when testing with geth endpoint
I tried to test the truffle suite official metacoin example using truffle test. I opened a local private chain using geth with http rpc service open at localhost:8545. My truffle-config.js file is ...
0
votes
0answers
43 views
truffle test is showing error after running on truffle(develop) console
I am using truffle in windows and everything went well. I've successfully set up development network. But when I try to run test from the truffle(develop) console this error shows -
TypeError [...
0
votes
1answer
138 views
How to use truffle-assertions to verify parameters of an emit?
I have not been able to find any resources with usage instruction besides github and blog post by the author
On github an example is show as such:
truffleAssert.eventEmitted(result, 'TestEvent', (...
0
votes
2answers
55 views
Signature test failed at Truffle js
I'm trying to test validAddress function from my contract ValidationUser, using truffle and test with JS. I checked the V value from the signature and its 27,28 so it is not the problem.
Also, I have ...
1
vote
0answers
37 views
Using privateFor in truffle test
Using truffle , I am able to deploy private smart contracts using privateFor clause. However, I am not able to use in truffle test. I get the following error. Is there a way we can use privateFor ?
...
1
vote
1answer
68 views
How to call an overloaded function in Truffle with ABIEncoderV2?
How do you call an overloaded function in Truffle when passing a struct using pragma experimental ABIEncoderV2;?
contract MyContract {
struct MyStruct {
address param1;
address param2;
...
0
votes
1answer
50 views
address(this) in solidity is returning wrong contract address
This is my cantract code which I was using in truffle
pragma solidity 0.5.16;
contract Test {
function getAdd() public view returns(address){
address add = address(this);
return ...
2
votes
1answer
268 views
Sending transaction from different addresses in truffle test case
I am having an admin in my contract who can do certain things. Here is the contract
function changeAdmin(address admin_) public {
if (msg.sender != admin) revert();
potentialAdmin = admin_;
}...
0
votes
1answer
354 views
What are the accounts generated by Truffle and Ganache? How is the Truffle migration done eactly?
I have a few question regarding Truffle, Ganache, and testing:
When I execute truffle develop and get 10 accounts and 10 private keys, do those represent my accounts in my wallet or other users? For ...
0
votes
0answers
107 views
Truffle Error: invalid argument 0: hex string without 0x prefix
I'm trying to deploy and test the smart contracts on the Goerli network using Truffle. While migrating getting below error.
Contract: Simple Storage Test suite
Simple Storage Set
...
0
votes
2answers
249 views
How to specify custom test directory path in truffle-config.js
How do I specify a custom test directory path in truffle-config.js? My test directory is not present at the same level as truffle-config.js, it is residing in a different directory.
Truffle has ...
0
votes
1answer
80 views
How can I make sense of solidity-coverage reports
I'm trying to check the coverage of an entire ERC20 set of openzeppelin tests. I'm using openzeppelin/test-environment and solidity-coverage v0.7.4 as plugins in truffle. The tests went fine but I get ...
