Version 17.1.0 --all records coverage of .mjs files json files in .nyc_output but doesn't report on the cli

[adligo]

Hi All,

So I'm working on a new testing library tests4ts (also tests4j), and after I do a
npm install -g @ts.adligo.org/slink
$ slink -v
1.5.7

npm install -g NYC

git clone slink_docker.ts.adligo.org
... more scripts that clone sub projects of sub projects ...

cd slink-group/slink_group.ts.adligo.org
npm run build
cd slink_tests.ts.adligo.org
NYC --all node dist/slink_tests.ts.adligo.org/src/slinkApiTrials.mjs

I get output like this;
-------------------------------|---------|----------|---------|---------|-------------------
File | % Stmts | % Branch | % Funcs | % Lines | Uncovered Line #s
-------------------------------|---------|----------|---------|---------|-------------------
All files | 0 | 0 | 0 | 0 |
fsContextManualApiTrial.ts | 0 | 0 | 0 | 0 | 23-138
slinkSingleTestCodeRunner.ts | 0 | 100 | 100 | 0 | 24
slinkSingleTestRunner.ts | 0 | 100 | 100 | 0 | 20-27
slinkSingleTrialCodeRunner.ts | 0 | 100 | 100 | 0 | 25
slinkSingleTrialRunner.ts | 0 | 100 | 100 | 0 | 17-24
-------------------------------|---------|----------|---------|---------|-------------------

However, if I dig around in the .nyc_output I read processinfo/index.json and then the subsequent paths to json files I can see NYC has instrumented (and I think captured coverage of) a bunch of .mjs files.

I believe that the text reporter is missing the reporting of coverage of a bunch of files, however, I'm not yet an expert at reading these JSON files.

What is the best way to learn about these files?

I have tried all kinds of combinations of "include" in the package.json, on the cli etc but nothing seems to show the additional coverage of the .mjs files. How can I determine if the coverage is being captured or if the text reporter is the issue?

[adligo]

This doesn't seem to be specific to the text reporter as it is also with the HTML and text-summary reporters so it must be my configuration, however, I have tried a lot of combinations from the docs but '.mjs' should be included in the default;

  "nyc": {
    "all": true, 
    "check-coverage": true,
    "extension": [".mjs"]
  },

and also the following, however it doesn't seem to be picking up my transpiled .mjs files?

nyc --extension .mjs  node dist/slink_tests.ts.adligo.org/src/slinkApiTrials.mjs 

[adligo]

I was able to hack up some sort of a solution I think by adding this to the files that I want to cover;

//trying to hack the nyc code coverage system
export function getGlobal(): Object | null {
  return eval('global.__coverage__');
}

Still trying to figure out how to get this to a reporter though, any assistance is appreciated!

[adligo]

c8 worked out of the box for me, should have tried it sooner!