142579c16d
Automatic merge from submit-queue (batch tested with PRs 55217, 54260). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Unit tests for Azure service session affinity
**What this PR does / why we need it**: We added session affinity support in the Azure load balancer in commit 8b50b83067. This PR adds unit tests for this behaviour.
**Which issue this PR fixes**: None
**Special notes for your reviewer**: None
**Release note**:
```release-note
NONE
```