Refactor test command to use papermill to run notebooks

[94rain]

Describe your changes

• Refactor test command to use papermill to run notebooks
• Add file existence check for output of executed notebook

Issue ticket number and link

Closes #6

Checklist before requesting a review

• [x] I have performed a self-review of my code
• [x] I have added thorough tests (when necessary).
• [x] I have added the right documentation (when needed). Product update? If yes, write one line about this update.

[94rain]

• How about If it's another error, show the guide for debugging notebooks? I see the link to the debugging guide was removed.

• I moved the "Contact us for help: https://ploomber.io/community" message to a constant.

• I did this approach. This still looks a bit weird.

  click.secho('custom message', fg='red') raise ClickException('An error happened when executing the notebook, contact us...')

[edublancas]

How about If it's another error, show the guide for debugging notebooks? I see the link to the debugging guide was removed.

The link to the debugging docs is not applicable here. The docs show how to debug pipelines and it assumes the person is already familiar with Ploomber, here, the person has a single notebook

I moved the "Contact us for help: https://ploomber.io/community" message to a constant.

yeah, that's better

I did this approach. This still looks a bit weird.

How do you think it could be better?

[idomic]

@94rain ready for review?

[94rain]

The link to the debugging docs is not applicable here. The docs show how to debug pipelines and it assumes the person is already familiar with Ploomber, here, the person has a single notebook

I see. I removed tests for checking out how to debug notebook.

@94rain ready for review?

If the message format (screenshot above) looks fine, then yes.

[edublancas]

great work!