How to pass msg.sender and constructor params in truffle tests?

Question

I have the following constructor:

constructor(address _payee) public {
    payer = msg.sender;
    payee = _payee;
}

And this function in my JavaScript tests:

beforeEach(async () => {
    contract = await Contract.new(payee);
});

However, I get an error:

Error: Contract contract constructor expected 1 arguments, received 2

I made sure I cleared the build folder and I had recompiled the contracts with truffle compile --all before.

How can I pass msg.sender and payee? There are no problems with these constructor params when deploying the contract using the migrations deployer.

Using ganache 1.2.1 and truffle 4.1.13.

Answer 1

That should work. I suspect the problem is elsewhere.

It might depend on your versions, but my test files use beforeEach(async function () { - a bit different syntax. Make sure that's not an issue for you.

Are you importing the Contract correctly with something like const Contract = artifacts.require('MyContract');? (by the way I'm not sure if you get problems with using exactly the name Contract for the variable name - use another name to be sure.

Answer 2

Apparently, I simply had to restart ganache. There was an old version of the contract deployed, and most likely that caused incompatibilities.