Add oracle reward distribtuion test #1853
Description
Summary
We don't have proper reward distribution test.
PR: https://github.com/umee-network/umee/pull/1852/files#diff-5ab93a9d86b554f353a4615e22adbfef295849e090c0b139aae4fb37bf04f499R196 fixes the power calculation, and I believe it also fixes reward distribution, but the proper test for reward distribution is still missing.
For Admin Use
- Not duplicate issue
- Appropriate labels applied
- Appropriate contributors tagged
- Contributor assigned/self-assigned