MultiProjectImporter should ignore tests directory in imported projects

[kevinthenet]

Description of Problem:

I was in the process of testing out the MultiProjectImporter for use in my own projects (which I love), so I set up two nested directories using rasa init:

├── actions.py
├── config.yml
├── data
│   ├── mood_1_nlu.md
│   └── mood_1_stories.md
├── domain.yml
├── models
│   └── 20200528-101144.tar.gz
├── projects
   └── Mood2Bot
       ├── config.yml
       ├── data
       │   ├── mood_2_nlu.md
       │   └── mood_2_stories.md
       ├── tests
       │   └── conversation_tests.md
       └── domain.yml

This lead to log messages like these:

UserWarning: Found unknown intent 'bot_challenge: are you a bot?' on line 50. Please, make sure that all intents are listed in your domain yaml.

2020-05-28 10:24:57 WARNING  rasa.core.featurizers  - Feature 'intent_bot_challenge: are you a bot?' could not be found in feature map.

I believe this is the function causing this issue.

Overview of the Solution:

Ignore the tests/ directory in an imported project, since this format is not for training, as specified in the docs. Just as well, it promotes isolated, project-level conversation testing, which seems to be the goal of this feature.

Examples (if relevant):

Blockers (if relevant):

Definition of Done:

• Add test for tests/ in imported project
• Ignore tests/ directory when walking the project directory
• Document changes in change log

[sara-tagger]

Thanks for submitting this feature request 🚀 @Ghostvv will get back to you about it soon! ✨

[wochinge]

good catch, @ortsaCniveK 🎉 Do you wanna implement a fix for this? I'd be available for feedback and help. Otherwise we'd add it to our backlog.

[kevinthenet]

I can work on this!