Increase test coverage of ComparableUtils from 71% to 100%

[stevebosman-oc]

Static methods in ComparableUtils had 0 coverage this fixes that

Contributed on behalf of the @opencastsoftware open source team

[garydgregory]

Hi @stevebosman-oc
Thank you for your PR. Please rebase on git master so we can see the newly committed coverage.yml in action :-)

[codecov-commenter]

Codecov Report

Merging #898 (a71c794) into master (3a0ba3c) will increase coverage by 0.04%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master     #898      +/-   ##
============================================
+ Coverage     91.25%   91.30%   +0.04%     
- Complexity     7379     7386       +7     
============================================
  Files           188      188              
  Lines         15966    15966              
  Branches       2998     2998              
============================================
+ Hits          14570    14577       +7     
+ Misses          788      782       -6     
+ Partials        608      607       -1     

Impacted Files	Coverage Δ
...va/org/apache/commons/lang3/CharSequenceUtils.java	88.80% <0.00%> (+0.79%)	⬆️
.../apache/commons/lang3/compare/ComparableUtils.java	100.00% <0.00%> (+28.57%)	⬆️

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[stevebosman-oc]

I don't know how CharSequenceUtils coverage would have been affected. but the changes to ComparableUtils are pretty much what I expected