[js][bonus-01_base] Calculate premium user daily bonus

Author: rgomezcasas

examples/js/js-bonus-01_base/src/DailyBonusPointsCalculator.js

@@ -1,7 +1,12 @@
 export class DailyBonusPointsCalculator {
-    POINTS_PER_DAY = 10;
+    PREMIUM_USER_POINTS_PER_DAY   = 20;
+    NORMAL_USER_POINTS_PER_DAY    = 10;
 
-    calculate(consecutiveDays) {
-        return consecutiveDays * this.POINTS_PER_DAY;
+    calculate(consecutiveDays, isPremium) {
+        if (isPremium) {
+            return consecutiveDays * this.PREMIUM_USER_POINTS_PER_DAY;
+        } else {
+            return consecutiveDays * this.NORMAL_USER_POINTS_PER_DAY;
+        }
     }
 }

examples/js/js-bonus-01_base/tests/DailyBonusPointsCalculator.test.js

@@ -1,15 +1,27 @@
 import {DailyBonusPointsCalculator} from "../src/DailyBonusPointsCalculator";
 
 describe('DailyBonusPointsCalculator should', () => {
-    it('Calculate points for a user on its first day', () => {
+    it('Calculate points for a normal user on its first day', () => {
         const calculator = new DailyBonusPointsCalculator();
 
-        expect(calculator.calculate(1)).toBe(10);
+        expect(calculator.calculate(1, false)).toBe(10);
     });
 
-    it('Calculate points for a user on its second consecutive week', () => {
+    it('Calculate points for a normal user on its second consecutive week', () => {
         const calculator = new DailyBonusPointsCalculator();
 
-        expect(calculator.calculate(14)).toBe(140);
+        expect(calculator.calculate(14, false)).toBe(140);
+    });
+    
+    it('Calculate points for a premium user on its first day', () => {
+        const calculator = new DailyBonusPointsCalculator();
+        
+        expect(calculator.calculate(1, true)).toBe(20);
+    });
+    
+    it('Calculate points for a premium user on its second consecutive week', () => {
+        const calculator = new DailyBonusPointsCalculator();
+        
+        expect(calculator.calculate(14, true)).toBe(280);
     });
 });