Support for Node's new built-in test runner (node --test)

[AviVahl]

• Version: 18.12.0
• Platform: Linux fedora 6.0.5-200.fc36.x86_64

Node 18 now has a built-in test runner. It has also been back-ported to 16.
I've tried using c8 with it, and all I get is:

> c8 node --test --enable-source-maps

----------|---------|----------|---------|---------|-------------------
File      | % Stmts | % Branch | % Funcs | % Lines | Uncovered Line #s 
----------|---------|----------|---------|---------|-------------------
All files |       0 |        0 |       0 |       0 |                   
----------|---------|----------|---------|---------|-------------------
Segmentation fault (core dumped)

Steps to reproduce:

• clone https:/wixplosives/sample-monorepo
• npm i c8 -D
• open package.json and edit test:node. prefix it with c8 so it says: "test:only": "c8 node --test --enable-source-maps",
• npm t

[bcoe]

I believe this is caused by:

nodejs/node#45013

And can't be fixed in c8 itself. You can confirm by running your tests with NODE_V8_COVERAGE=/tmp/coverage, without c8.

[AviVahl]

Thanks for the info. I'll try again with the next node version.