Misc coverage improvements

[BrandonRomano]

No description provided.

[codecov-commenter]

Codecov Report

Merging #9 into master will increase coverage by 3.23%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master       #9      +/-   ##
==========================================
+ Coverage   83.21%   86.45%   +3.23%     
==========================================
  Files          12       13       +1     
  Lines         429      443      +14     
==========================================
+ Hits          357      383      +26     
+ Misses         53       43      -10     
+ Partials       19       17       -2     

Impacted Files	Coverage Δ
database/models/user.go	100.00% <ø> (+15.62%)	⬆️
database/ephemeral_database.go	84.84% <100.00%> (+0.72%)	⬆️
server/ping.go	100.00% <100.00%> (+16.66%)	⬆️
server/validator/playground_validator.go	100.00% <0.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 389e94b...22e7f6f. Read the comment docs.