cli/command/container: add unit tests for container restart and container stop

[thaJeztah]

- A picture of a cute animal (not mandatory but encouraged)

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 60.03%. Comparing base (bae4b67) to head (ac502b5).
Report is 3 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5482      +/-   ##
==========================================
+ Coverage   59.74%   60.03%   +0.29%     
==========================================
  Files         345      345              
  Lines       23432    23432              
==========================================
+ Hits        14000    14068      +68     
+ Misses       8458     8390      -68     
  Partials      974      974              

[thaJeztah]

Booh! I guess we need to copy the config.json, or run authentication inside the e2e containers;

#6 [notary-server internal] load metadata for docker.io/library/notary:server-0.6.1
#6 ERROR: failed to copy: httpReadSeeker: failed open: unexpected status code https://registry-1.docker.io/v2/library/notary/manifests/sha256:05d1cceee56e406fae0dafbe82ea53a57f3d9c17d209f6c41ba2e495f5b8941b: 429 Too Many Requests - Server message: toomanyrequests: You have reached your pull rate limit. You may increase the limit by authenticating and upgrading: https://www.docker.com/increase-rate-limit

[robmry]

LGTM

[thaJeztah]

Thx!