fix: expressions resolution

[kingthorin]

If an expression has arguments it shouldn't be treated as "simple".

Tweak FaverValueService logic and add test to FakerValueServiceTest.

Fixes #1274

[what-the-diff]

PR Summary

• Enhancement of Directive Evaluation in FakeValuesService
  In FakeValuesService.java, we've introduced a safety measure, in the form of a condition check. Now before any directive is added to the list of results, the system makes sure that it is "simple", improving the overall quality of data processed.

• Additional Import in FakeValuesServiceTest
  In our test file FakeValuesServiceTest.java, we've added an import for LuhnCheckDigit. This is a utility which allows us to perform certain checks, therefore enhancing our testing capabilities.

• New Test Method: expressionWithSingleEnumArg
  In order to increase the robustness of our tests, a new test method named expressionWithSingleEnumArg() has been added to FakeValuesServiceTest.java. This aims to scrutinize an expression with a single enum argument, helping reinforce our testing parameters.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.98%. Comparing base (b37c566) to head (d51e19c).
Report is 173 commits behind head on main.

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Additional details and impacted files

@@             Coverage Diff              @@
##               main    #1275      +/-   ##
============================================
- Coverage     92.35%   91.98%   -0.37%     
- Complexity     2821     3092     +271     
============================================
  Files           292      310      +18     
  Lines          5609     6053     +444     
  Branches        599      637      +38     
============================================
+ Hits           5180     5568     +388     
- Misses          275      323      +48     
- Partials        154      162       +8     

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[panilya]

@kingthorin Thank you for fixing it!

[kingthorin]

No problem. I'm just trying to give the other devs a chance to see it incase I've overlooked something. If there's nothing else in the next few days I'll go ahead and merge it.

[asolntsev]

@kingthorin I've tried your fix: works for me.

[kingthorin]

Great, thanks!