how to test overloaded function in truffle?

Question

I recently upgraded truffle to the newest version. Now it does not automatically detect overloaded functions anymore. Before, I could just do the following:

await contract.function({
  from: accounts[0],
  value: web3.utils.toWei("0.5", "Ether")
});

await contract.function(param1, param2, {
  from: accounts[0],
  value: web3.utils.toWei("0.5", "Ether")
});

Now it seems that I have to specify the parameters in a syntax like the following:

await contract.function['uint256', 'uint256'](param1, param2, {
  from: accounts[0],
  value: web3.utils.toWei("0.5", "Ether")
});

But how can I declare the first function version without parameters? Doing this: contract.function[''](...) produces the error contract.function is not a function. Not declaring anything via [] produces the same error as well.

Also the parameters for the overloaded functions are two arrays. One address[] array and one uint256[] array. I already tried:

contract.function["address[]", "uint256[]"](addressList, uintList, {...})

which doesn't work. It produces the same error.

I also didn't find any information about this in the truffle documentation.

Answer 1

Make sure you upgrade to the latest version of Truffle, and then check out these release notes on overloaded functions: https://github.com/trufflesuite/truffle/releases/tag/v5.0.0#user-content-what-s-new-in-truffle-v5-interacting-with-your-contracts-overloaded-solidity-functions

I hope that helps a little!

Answer 2

Solution (Truffle 5.0.0+):

const example = await Example.deployed();
example.methods['setValue(uint256)'](123);
example.methods['setValue(uint256,uint256)'](11, 55);