[ARO] az aro: Fix table output

[m1kola]

Description

Fixes a bug in az aro {command} --output table (az aro list --output table, for example) when the comamnd fails due to not taking into account potential None values in data in some edge cases table output currently fails. For example:

• When there are no worker profiles (cluster only has masters or we failed to get data from API server)
• When a worker profile does not have count (machine set was scaled to 0)

Testing Guide

Create an ARO cluster, scale all machine sets to 0 and try to run az aro list --output table.

History Notes

[ARO] az aro: Fix table output

---

This checklist is used to make sure that common guidelines for a pull request are followed.

• The PR title and description has followed the guideline in Submitting Pull Requests.

• I adhere to the Command Guidelines.

[yonzhan]

add to S169

[haroldrandom]

Could you please add __init__.py under tests/ and its child directory latest/? (To enable test discover mechanism)

And adding this require re-recording tests.

[m1kola]

Good catch! Added __init__.py into these dirs. But I think we also need to update request recordings. I'll look into how to do it now.

[haroldrandom]

Good catch! Added __init__.py into these dirs. But I think we also need to update request recordings. I'll look into how to do it now.

One reason why CI failed is azure-mgmt-network has bumped to a newer version, you could re-recordin test to resolve this.
But still need you fix the problem for your modifcation if any.

[m1kola]

@jiasli @haroldrandom please take a look. I rebased on top of dev branch which now has __init__.py files for tests and new recordings and added some extra test for table output.