Automatic merge from submit-queue. 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>.
Add test for scheduler config defaults
This test will let us notice if defaults change when loading from a config file or from flags.
```release-note
NONE
```
7ff2feea9a