bug: __mocks__ copied to output target

[mrtnmgs]

Prerequisites

• I have read the Contributing Guidelines.
• I agree to follow the Code of Conduct.
• I have searched for existing issues that already report this problem, without success.

Stencil Version

4.18.0

Current Behavior

Stencil copies over mocks directories to dist and throws warnings about duplicate mocks.
The mocks are ./src/global/services/__mocks__ and ./src/global/__mocks__
Stencil's console warning:

jest-haste-map: duplicate manual mock found: functions
  The following files share their name; please delete one of them:
    * <rootDir>\src\global\__mocks__\functions.tsx
    * <rootDir>\dist\collection\global\__mocks__\functions.js
    * 
jest-haste-map: duplicate manual mock found: http-service
  The following files share their name; please delete one of them:
    * <rootDir>\src\global\services\__mocks__\http-service.tsx
    * <rootDir>\dist\collection\global\services\__mocks__\http-service.js

I wondered if I wasn't supposed to write the mocks in TypeScript, but same thing with .js files:

jest-haste-map: duplicate manual mock found: functions
  The following files share their name; please delete one of them:
    * <rootDir>\src\global\__mocks__\functions.js
    * <rootDir>\dist\collection\global\__mocks__\functions.js

jest-haste-map: duplicate manual mock found: http-service
  The following files share their name; please delete one of them:
    * <rootDir>\src\global\services\__mocks__\http-service.js
    * <rootDir>\dist\collection\global\services\__mocks__\http-service.js

I couldn't find a config option that would allow to explicitly exclude these directories.

Expected Behavior

__mocks__ directories should be excluded when copying files to build directories

System Info

Windows, npm 9.7.2

Steps to Reproduce

create file src/global/functions.tsx and matching mock src/global/__mocks__/functions.tsx. run npm test.

Code Reproduction URL

https://github.com/mrtnmgs/mockbug

Additional Information

No response

[alicewriteswrongs]

Hey @mrtnmgs thanks for reporting this, I was just able to confirm that the files in the __mocks__ directory are being copied over. This isn't specific behavior to that directory though - any code in src/ will be copied to the dist output target by Stencil actually. So I think in order to change this behavior we'd need to add an ignore option or something.

I'm going to label this a feature request so we can gauge community interest in such a feature!

[mrtnmgs]

Thanks @alicewriteswrongs. That feature sounds nice, but right now things don't work properly by default. There's no reason to copy __mocks__ directories over, and it creates an issue. It doesn't sound right to me to ask the user to configure something in order to fix it... Shouldn't __mocks__ directories be ignored by default?

[mrtnmgs]

Closing as this is part of a larger issue, see #5788

[christian-bromann]

A fix for this bug has been published in Stencil v4.21.0!