extract scoreSmoking function at Score

Author: kaiosilveira

src/index.js

@@ -14,10 +14,7 @@ export class Scorer {
     this._healthLevel = 0;
     this._highMedicalRiskFlag = false;
 
-    if (this._medicalExam.isSmoker) {
-      this._healthLevel += 10;
-      this._highMedicalRiskFlag = true;
-    }
+    this.scoreSmoking();
 
     this._certificationGrade = 'regular';
     if (this._scoringGuide.stateWithLowCertification(this._candidate.originState)) {
@@ -30,4 +27,11 @@ export class Scorer {
 
     return this._result;
   }
+
+  scoreSmoking() {
+    if (this._medicalExam.isSmoker) {
+      this._healthLevel += 10;
+      this._highMedicalRiskFlag = true;
+    }
+  }
 }