Could not find artifacts for Solidity tests (Windows only, v4.1.5)

• I’ve asked for help in the Truffle Gitter before filing this issue.

---

Issue

In Version v4.1.5 truffle test will throw errors, If I downgrade the truffle version to v4.0.4 , it will work

TestMyContract 1) “before all” hook: prepare suite 0 passing (625ms) 1 failing

1. TestMyContract “before all” hook: prepare suite: Error: Could not find artifacts for “path”

Steps to Reproduce

Truffle test

Environment

• Operating System: Windows 10
• Truffle version (truffle version): v4.1.5

[cgewecke]

@woodenchalet @ismaelbej I tried to reproduce this using the MetaCoin project but wasn’t able (I’m on OSX). I’d like to figure out if this is Windows specific or if my model for the bug is wrong. My directory structure looked like this:

contracts /
  Parser /
    Tx.sol
  Metacoin.sol
  ConvertLib.sol
  Migrations.sol
test /
  TestMetacoin.sol

Imports at the top of MetaCoin.sol look like this:

pragma solidity ^0.4.18;

import "./ConvertLib.sol";
import "./Parser/Tx.sol";

contract MetaCoin is Tx  {
  ...etc...
}

Imports at the top of TestMetaCoin.sol look like this:

pragma solidity ^0.4.2;

import "truffle/Assert.sol";
import "truffle/DeployedAddresses.sol";
import "../contracts/MetaCoin.sol";

contract TestMetacoin {
 ... etc ...
}

Output is as expected:

Compiling ./contracts/ConvertLib.sol...
Compiling ./contracts/MetaCoin.sol...
Compiling ./contracts/Parser/Tx.sol...
Compiling ./test/TestMetacoin.sol...
Compiling truffle/Assert.sol...
Compiling truffle/DeployedAddresses.sol...

Also tried running compile before test and everything worked. Should the project structure above trigger the error based on what you’ve seen in your own project?

[ismaelbej]

I’ll try to create a small reproducible example for now the stack trace output

   1) TestRelay "before all" hook: prepare suite:
      Error: Could not find artifacts for /D/test/contracts/Parser/Tx.sol from any sources
       at Resolver.require (C:\Users\little\AppData\Roaming\npm\node_modules\truffle\build\webpack:\~\truffle-resolver\index.js:37:1)
       at TestResolver.require (C:\Users\little\AppData\Roaming\npm\node_modules\truffle\build\webpack:\~\truffle-core\lib\testing\testresolver.js:17:1)
       at TestResolver.require (C:\Users\little\AppData\Roaming\npm\node_modules\truffle\build\webpack:\~\truffle-core\lib\testing\testresolver.js:17:1)
       at C:\Users\little\AppData\Roaming\npm\node_modules\truffle\build\webpack:\~\truffle-core\lib\testing\soliditytest.js:141:1
       at Array.forEach (<anonymous>)
       at C:\Users\little\AppData\Roaming\npm\node_modules\truffle\build\webpack:\~\truffle-core\lib\testing\soliditytest.js:140:1
       at C:\Users\little\AppData\Roaming\npm\node_modules\truffle\build\webpack:\~\truffle-deployer\src\deferredchain.js:20:1
       at <anonymous>
       at process._tickCallback (internal/process/next_tick.js:188:7)
 

The file Parser/Tx.sol is a dependency of RelayTests but compilation and migration run fine. Also executing javascript test will run without issues.

And the solidity test, but I think the content doesn’t matter too much because it is never run.

pragma solidity ^0.4.15;

import "truffle/Assert.sol";
import "truffle/DeployedAddresses.sol";
import "../contracts/RelayTests.sol";

contract TestRelay {

    function testFlip32Bytes() {
        RelayTests dr = RelayTests(DeployedAddresses.RelayTests());
        uint expected = 0x201f1e1d1c1b1a191817161514131211100f0e0d0c0b0a090807060504030201;
        Assert.equal(dr.flip32BytesPublic(0x0102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20), expected, "flip32Bytes failed");
    }

}