nyc silently fails with this weird code #139
Description
Observed Behavior
I was working an a small side project today and had a frustrating experience with nyc. After everything I tried all i got for output was:
----------|----------|----------|----------|----------|-------------------|
File | % Stmts | % Branch | % Funcs | % Lines | Uncovered Line #s |
----------|----------|----------|----------|----------|-------------------|
All files | 0 | 0 | 0 | 0 | |
----------|----------|----------|----------|----------|-------------------|
My code had function like this: function myFunc(obj, ...arguments). Turns out arguments is a reserved keyword that does exactly the thing I was trying to do! 😄 I discovered this when I added 'use strict' to my code and node gave an error. I'm not sure if this case is within the scope of this project but anyway I wanted to document this in case someone else is struggling with similar problem!
Expected Behavior
Nyc should fail with a meaningful error message.
Bonus Points! Code (or Repository) that Reproduces Issue
/** @file: weird.js */
function myFunc(obj, ...arguments) {
console.log('Hello world!');
}
myFunc({}, 'foo', 'bar');╭─user@computer ~/Documents/test
╰─$ node weird.js
Hello world!
╭─user@computer ~/Documents/test
╰─$ yarn run nyc node weird.js
yarn run v1.5.1
$ /mnt/c/Users/User/Documents/test/node_modules/.bin/nyc node weird.js
Hello world!
----------|----------|----------|----------|----------|-------------------|
File | % Stmts | % Branch | % Funcs | % Lines | Uncovered Line #s |
----------|----------|----------|----------|----------|-------------------|
All files | 0 | 0 | 0 | 0 | |
----------|----------|----------|----------|----------|-------------------|
Done in 3.51s.
Rename arguments to args and everything works as it should.
Forensic Information
Operating System: Ubuntu on Windows subsystem for linux.
Node version: v8.10.0
Nyc version: 11.6.0
Yarn version: 1.5.1