tagging and testing should fail, not hang, when tests are wrong

[AlexJeffcott]

Expected Behavior

the component tagging fails / tests fail to run with an error

Actual Behavior

it hangs with no error

Steps to Reproduce the Problem

1 cd project_directory
2 bit init
3 bit login
4 mkdir src
5 touch try.js
6 in try.js export default (a, b)=>a+b
7 mkdir __tests__
8 touch try.test.js
9 in try.test.js (the try function is not called in the expect method thus creating a test that doesn't work)

import try from "../try";
it('test try', () => expect((1, 2)).toEqual(3));

10 bit add src -t 'src/__tests__/*'
11 bit import bit.envs/compilers/babel -c
12 bit import bit.envs/testers/jest -t
13a bit tag --all 1.0.0
13b bit test

Specifications

• Bit version: 14.1.1
• Node version: 12.1.0
• npm / yarn version: 6.9.0
• Platform: Ubuntu Bionic Beaver
• Bit compiler (include version): bit.envs/compilers/babel@7.0.1
• Bit tester (include version): bit.envs/testers/jest@22.4.3

[davidfirst]

I was able to reproduce the issue.
Just a note, for some reason I got an error during the build, so in step # 9, remove the first line, you don't need it to reproduce the issue.

As far as I can see, this is an issue with the Jest tester.
I started debugging it and it seems like it gets stuck here: return exec(cmd).then.
It doesn't continue to the 'then', nor to the 'catch'.

The bug was originally posted in bit-bin, I transferred it to this repo so you guys hopefully can help.

[GiladShoham]

We should probably take a look on the compiler implementation and see if we have a hook to get an error or something and send it back to bit

[davidfirst]

This issue seems to be related to the child-process-promise package this env is using.
See this issue (wasn't fixed since 2016): patrick-steele-idem/child-process-promise#26.
It'd be best to switch to execa instead.