Angular-cli: ng test --code-coverage doesn't include files outside of src folder

[psamusev]

Bug Report or Feature Request (mark with an x)

- [x] bug report -> please search issues before submitting
- [ ] feature request

Command (mark with an x)

- [ ] new
- [ ] build
- [ ] serve
- [x] test
- [ ] e2e
- [ ] generate
- [ ] add
- [ ] update
- [ ] lint
- [ ] xi18n
- [ ] run
- [ ] config
- [ ] help
- [ ] version
- [ ] doc

Versions

node v8.9.4
npm v6.4.1
Mac OS Mojave
Angular CLI: 6.2.4
Angular: 6.1.9

Repro steps

1. ng new test-app
2. create packages/test-package outside of src folder
3. add there simple test.component.ts and test.component.spec.ts
4. Modify test.ts file and add context of 'packages directory
   replace

const context = require.context('./', true, /\.spec\.ts$/);
context.keys().map(context1);

with

const context1 = require.context('../packages', true, /\.spec\.ts$/);
const context2 = require.context('./', true, /\.spec\.ts$/);

context1.keys().map(context1);
context2.keys().map(context2);

1. Add "../packages/**/*.spec.ts", to tsconfig.spec.json in "include" section

2. ng test --code-coverage and open coverage/index.html

Description

Files from packages directory don't include in final coverage report

Desired functionality

All files despite on their location should be presented in final coverage report

[alan-agius4]

This is actually by design, Only files under sourceRoot are listed in the code coverage report. Anything which is not under sourceRoot is considered as external.

https://github.com/angular/angular-cli/issues/11934

[Pringels]

It would be great if we could supply an optional list of external directories to include. (perhaps in angular.json?)

That commit completely broke coverage reporting in my team's mono-repo setup :(

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