Feature/add mesh cli tests

[iamyulong]

Important

• Please read our Contributing Guidelines before opening a PR.
• Before creating your PR, please ensure you have used the correct base branch as per the branching strategy, both for branching from, and in the PR UI above.
  • For most code changes, this is develop.
  • For stand-alone docs changes, this is main.
  • For workflow changes, this is the oldest supported release/* branch.
• Please remove these sections as you fill out your PR.

Summary

Tip

Start with the context of your PR. Why are you making this change? What does it address? Link back to an issue if relevant.

Then summarise the changes that were made. Bullet points are fine.

Details

Tip

This section is optional. Go into more detail about the changes that were made, or the thinking behind the changes.

Testing

Tip

Explain what testing / verification is done, including manual testing or automated testing.