Demonstrate how lab code coverage can get into a promise chain

README.md

This is just an example to demonstrate how lab code coverage can get in the way

module.js

// This is a simple but valid function
const trace = (msg) => (x) => (console.info(msg, x), x);
// This will receive the result of the previous execution
const destructureSomething = ([a,b]) => {
    console.log('I have destructured: ',a ,b );
    return [a,b]
}
// This is just a stupid function that does something
const executeThings = scopeA => scopeB =>
{
    console.log('Scope A', scopeA);
    console.log('Scope B', scopeB);

    return Promise
        .resolve([scopeA, scopeB])
        .then (trace('This are the scopes and the stuff')) // Here code coverage gets int and ruins the promise chain
        .then (destructureSomething);
}


module.exports = {
    name: 'fails-on-testing'
    , version: '1.0.0'
    , multiple: false
    , async register(server, options) {
        server.method('random.stuff', executeThings ('Hello from A'))
    }
};

module.spec.js

const Lab = require('lab');
const Sinon = require('sinon');

// Test shortcuts
const lab = exports.lab = Lab.script();
const { it, expect, experiment: describe, before, afterEach } = lab;

const server = {
    method: Sinon.spy()
};

// Module to test
const Plugin = require('./module.js');

before((done) => {

    // Register plugin
    Plugin.register(server).then(() => {

        done();
    });
});

describe ('Satan', (done) => {

    
    it('Should not fail!', (done) => {

        const executeThings = server.method.firstCall.args[1];
        executeThings('Hello from B').then((res) => {
            expect(res).to.exist()
            done();
        });
    });
});

package.json

{
  "name": "putoLabCoverage",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "lab module.spec.js --reporter console --threshold 100 --assert code --coverage --verbose -l",
    "test:ok": "lab module.spec.js --reporter console --assert code --verbose -l"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "code": "^5.2.0",
    "lab": "^14.3.4",
    "sinon": "^6.1.5"
  }
}