Solidity Unit Testing: Custom transaction context does not persist into function calls

Docs: https://remix-ide.readthedocs.io/en/latest/unittesting.html

The issue is that while the transaction context works within the test function, it seemingly has no effect when actually calling the contract under test. Here is a minimal example I’ve created to demonstrate the issue:

SampleContract.sol

pragma solidity 0.8.7;

contract SampleContract {
    function debug() external returns (address) {
        return msg.sender;
    }
}

Sample_test.sol

import "remix_tests.sol"; 
import "remix_accounts.sol";

contract SampleTest {
    
    SampleContract s;
    
    function beforeEach() public {
        s = new SampleContract();
    }
    
    /// #sender: account-0
    function account0Works () public {
        Assert.equal(msg.sender, TestsAccounts.getAccount(0), "debug"); //THIS WORKS
        
        address actualSender = s.debug();
        Assert.equal(actualSender, TestsAccounts.getAccount(0), "this should work"); //THIS IS BROKEN
    }
    
    /// #sender: account-1
    function account1IsBroken () public {
        Assert.equal(msg.sender, TestsAccounts.getAccount(1), ""); //THIS WORKS
        
        address actualSender = s.debug();
        Assert.equal(actualSender, TestsAccounts.getAccount(1), "this should work"); //THIS IS BROKEN - actualSender is the same as previous test case
    }
}

As always, this could easily be a case of operator error, so any suggestions or advice is appreciated.

[techiejd]

Ok for any one going down this rabbit hole, here is what changes need to be made:

1. Make the test an instance of the contract to be tested.
2. All calls need to be internal on the particular. So, all external functions need to be public so that you can call it internally w/o using contract.func and/or this.func which actually creates a new message and sets something else as the sender.

[techiejd]

What exactly did you change? I’m having the same issue.