The tests now pass as they were broken before

$ mvn test
[INFO] Scanning for projects...
[INFO]
[INFO] --------------------< org.example:ocp-checkpoint-1 >--------------------
[INFO] Building ocp-checkpoint-1 1.0-SNAPSHOT
[INFO]   from pom.xml
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- resources:3.3.0:resources (default-resources) @ ocp-checkpoint-1 ---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory /Users/marcellodesales/dev/github.com/marcellodesales/pluralsight-refactoring-solid-java17/2-ocp/checkpoints/checkpoint1/before/src/main/resources
[INFO]
[INFO] --- compiler:3.7.0:compile (default-compile) @ ocp-checkpoint-1 ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding UTF-8, i.e. build is platform dependent!
[INFO] Compiling 2 source files to /Users/marcellodesales/dev/github.com/marcellodesales/pluralsight-refactoring-solid-java17/2-ocp/checkpoints/checkpoint1/before/target/classes
[INFO]
[INFO] --- resources:3.3.0:testResources (default-testResources) @ ocp-checkpoint-1 ---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory /Users/marcellodesales/dev/github.com/marcellodesales/pluralsight-refactoring-solid-java17/2-ocp/checkpoints/checkpoint1/before/src/test/resources
[INFO]
[INFO] --- compiler:3.7.0:testCompile (default-testCompile) @ ocp-checkpoint-1 ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding UTF-8, i.e. build is platform dependent!
[INFO] Compiling 2 source files to /Users/marcellodesales/dev/github.com/marcellodesales/pluralsight-refactoring-solid-java17/2-ocp/checkpoints/checkpoint1/before/target/test-classes
[INFO]
[INFO] --- surefire:2.22.2:test (default-test) @ ocp-checkpoint-1 ---
[INFO]
[INFO] -------------------------------------------------------
[INFO]  T E S T S
[INFO] -------------------------------------------------------
[INFO] Running TaxCalculatorTests
[ERROR] Tests run: 2, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 0.028 s <<< FAILURE! - in TaxCalculatorTests
[ERROR] shouldCalculateTaxesWithNationality  Time elapsed: 0.019 s  <<< ERROR!
java.util.NoSuchElementException: No value present
        at TaxCalculatorTests.shouldCalculateTaxesWithNationality(TaxCalculatorTests.java:35)

[INFO]
[INFO] Results:
[INFO]
[ERROR] Errors:
[ERROR]   TaxCalculatorTests.shouldCalculateTaxesWithNationality:35 » NoSuchElement No v...
[INFO]
[ERROR] Tests run: 2, Failures: 0, Errors: 1, Skipped: 0
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  2.550 s
[INFO] Finished at: 2023-02-25T12:54:13-08:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.22.2:test (default-test) on project ocp-checkpoint-1: There are test failures.
[ERROR]
[ERROR] Please refer to /Users/marcellodesales/dev/github.com/marcellodesales/pluralsight-refactoring-solid-java17/2-ocp/checkpoints/checkpoint1/before/target/surefire-reports for the individual test results.
[ERROR] Please refer to dump files (if any exist) [date].dump, [date]-jvmRun[N].dump and [date].dumpstream.
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException

☁️  aws-cli@2.2.32 🔖 aws-iam-authenticator@0.5.3
☸️  kubectl@1.25.4
KustomizeVersion: v4.5.7 📛 kustomize@v4.4.0 🎡 helm@3.7.0 👽 argocd@2.3.3 🤹 argocd@3.2.8 ✈️  glooctl@1.9.0
👤 AWS_PS1_PROFILE 🗂️   🌎 sa-east-1
🏗   🔐 arn:aws:eks:sa-east-1:806101772216:cluster/eks-ppd-prdt-super-cash 🍱 default
~/dev/github.com/marcellodesales/pluralsight-refactoring-solid-java17/2-ocp/checkpoints/checkpoint1/before on  feature/single-responsibility-principle-solve-exercise-srp! 📅 02-25-2023 ⌚12:54:13
$ mvn test
[INFO] Scanning for projects...
[INFO]
[INFO] --------------------< org.example:ocp-checkpoint-1 >--------------------
[INFO] Building ocp-checkpoint-1 1.0-SNAPSHOT
[INFO]   from pom.xml
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- resources:3.3.0:resources (default-resources) @ ocp-checkpoint-1 ---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory /Users/marcellodesales/dev/github.com/marcellodesales/pluralsight-refactoring-solid-java17/2-ocp/checkpoints/checkpoint1/before/src/main/resources
[INFO]
[INFO] --- compiler:3.7.0:compile (default-compile) @ ocp-checkpoint-1 ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding UTF-8, i.e. build is platform dependent!
[INFO] Compiling 2 source files to /Users/marcellodesales/dev/github.com/marcellodesales/pluralsight-refactoring-solid-java17/2-ocp/checkpoints/checkpoint1/before/target/classes
[INFO]
[INFO] --- resources:3.3.0:testResources (default-testResources) @ ocp-checkpoint-1 ---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory /Users/marcellodesales/dev/github.com/marcellodesales/pluralsight-refactoring-solid-java17/2-ocp/checkpoints/checkpoint1/before/src/test/resources
[INFO]
[INFO] --- compiler:3.7.0:testCompile (default-testCompile) @ ocp-checkpoint-1 ---
[INFO] Nothing to compile - all classes are up to date
[INFO]
[INFO] --- surefire:2.22.2:test (default-test) @ ocp-checkpoint-1 ---
[INFO]
[INFO] -------------------------------------------------------
[INFO]  T E S T S
[INFO] -------------------------------------------------------
[INFO] Running TaxCalculatorTests
[INFO] Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.023 s - in TaxCalculatorTests
[INFO]
[INFO] Results:
[INFO]
[INFO] Tests run: 2, Failures: 0, Errors: 0, Skipped: 0
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  1.908 s
[INFO] Finished at: 2023-02-25T12:54:48-08:00
[INFO] -----------------------------

Just moving the methods from the calculator

The solution specifies specific results for better results.
The last test case was broken as well.