start adding unit tests

[manwaring]

No description provided.

[codecov-io]

Codecov Report

Merging #11 into master will increase coverage by 9.81%.
The diff coverage is 90.9%.

@@            Coverage Diff             @@
##           master      #11      +/-   ##
==========================================
+ Coverage   64.86%   74.67%   +9.81%     
==========================================
  Files           2       11       +9     
  Lines          37      233     +196     
  Branches       12       50      +38     
==========================================
+ Hits           24      174     +150     
- Misses         13       59      +46

Impacted Files	Coverage Δ
src/api/body.ts	100% <ø> (ø)
src/cloudformation/cloudformation.ts	0% <ø> (ø)
src/common/environment.ts	100% <ø> (ø)
src/generic/generic.ts	0% <ø> (ø)
src/sns/sns.ts	0% <0%> (ø)
src/auth/auth.ts	0% <0%> (ø)
src/common/log.ts	100% <100%> (ø)
src/common/metrics.ts	96% <100%> (ø)
src/stream/stream.ts	100% <100%> (ø)
src/api/api-wrapper.ts	100% <100%> (ø)
... and 10 more

---

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 92da3c2...9dce817. Read the comment docs.