Dashboard - new testing framework: playwright

[notoraptor]

Description

Hi @bouthilx ! This is a PR that adds all changes related to unit tests, excluding changes related to experiment progress bar.

As this work was done to be able to test infinite scroll, I kept infinite scrolling feature added in this PR.

This PR replaces old dashboard testing framework React testing library with a new framework Playwright which uses a real browser in backend, allowing to make more complex tests, especially tests that needs HTML components with real dimensions. This is particularly necessary to test how a component reacts to a scrolling.

Changes

• Add infinite scrolling to experiments nav bar
• Replace React Testing Library with Playwright
• Rewrite a new Github Actions to use Playwright
• Rewrite all old tests to work with Playwright
• Add a new test for nav bar scrolling in dashboard/src/src/__tests__/ExperimentNavBar.test.js
• Add a new PKL database containing supplementary uncompleted experiments. These experiments are not yet used here, as it is mainly to test progress bars, but I leave it here as it changes a single line in tests. I can remove it from this PR if necessary. Other related changes:
  • Add a script to add supplementary experiments, to use if we need to regenerate the new DB
  • Update the script that copy data from PKL db to Mongo db, to use new PKL db as source, and clean Mongo DB before copying new data. This script is used to populate a Mongo DB in CI.

Checklist

Tests

• I added corresponding tests for bug fixes and new features. If possible, the tests fail without the changes
• All new and existing tests are passing ($ tox -e py38; replace 38 by your Python version if necessary)

Documentation

• I have updated the relevant documentation related to my changes

Quality

• I have read the CONTRIBUTING doc
• My commits messages follow this format
• My code follows the style guidelines ($ tox -e lint)

[bouthilx]

LGTM, thanks! I relaunched the tests. I don't understand how the current failures would relate to the current changes in this PR.

[notoraptor]

I relaunched failing tests (test-long-algo).

[notoraptor]

Rebased!