Make warrior upset when losing points

[skywalker212]

Closes #104

[codecov-io]

Codecov Report

Merging #107 into master will increase coverage by 0.02%. The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #107      +/-   ##
==========================================
+ Coverage   90.84%   90.87%   +0.02%     
==========================================
  Files          80       80              
  Lines        1016     1019       +3     
  Branches      158      158              
==========================================
+ Hits          923      926       +3     
  Misses         77       77              
  Partials       16       16

Impacted Files	Coverage Δ
packages/warriorjs-core/src/Warrior.js	100% <100%> (ø)	:arrow_up:

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[skywalker212]

@olistic ya sure, but I don't know how to add a unit test, can you tell me how to add one?

[olistic]

@skywalker212 Sure. In this particular case, it's super easy. Just look at the earning points test in Warrior.test.js and base yours on that one!

[skywalker212]

@olistic I have added the unit test, please review.

[skywalker212]

@olistic I have made the changes, please review.

[skywalker212]

@olistic Thanks for guiding through problems!