Bad line number reports on test failure

[elenadimitrova]

Since upgrading ganache-core to version 2.3.2 back in mid December, we started experiencing incorrect reports by truffle test runs upon failures.

Expected Behavior

When a truffle test run fails, mocha reports the correct line number in test source where the failure occurred. Below are a set of sample failed builds quoting test line numbers that are correct:
https://circleci.com/gh/JoinColony/colonyNetwork/5051
https://circleci.com/gh/JoinColony/colonyNetwork/5287
https://circleci.com/gh/JoinColony/colonyNetwork/5493
https://circleci.com/gh/JoinColony/colonyNetwork/5505

Current Behavior

Incorrect line number is reported when a test fails.
Below are a set of sample failed builds quoting test line numbers that are INcorrect:
https://circleci.com/gh/JoinColony/colonyNetwork/5553
https://circleci.com/gh/JoinColony/colonyNetwork/5582
https://circleci.com/gh/JoinColony/colonyNetwork/5636
https://circleci.com/gh/JoinColony/colonyNetwork/5721

Possible Solution

Although not a solution, @area suspects this change might be the cause of our woes.

We did test with ganache-core v2.2.1 where this issue isn't present.

Context

Resolving any test failures has become rather laborious as you never know where in the test file the error comes from. This makes for some horrendous developer experience.

Your Environment

• Version used: 2.3.2
• Operating System and version: MaxOS High Sierra
• Link to your project: https://github.com/JoinColony/colonyNetwork

[davidmurdoch]

@eggplantzzz thinks this may have been resolved on the Truffle side. We still need to investigate a bit more before closing.

[eggplantzzz]

Can anyone confirm that this is still or is no longer an issue?

[davidmurdoch]

Closing for issue maintenance.