diff --git a/index.js b/index.js
index 525c9de1..0ed6b014 100644
--- a/index.js
+++ b/index.js
@@ -1,11 +1,12 @@
-import { Drug, Pharmacy } from "./pharmacy";
+import { Drug, Pharmacy } from "./pharmacy.js";
 import fs from "fs";
 
 const drugs = [
   new Drug("Doliprane", 20, 30),
   new Drug("Herbal Tea", 10, 5),
   new Drug("Fervex", 5, 40),
-  new Drug("Magic Pill", 15, 40)
+  new Drug("Magic Pill", 15, 40),
+  new Drug("Dafalgan", 15, 40)
 ];
 const trial = new Pharmacy(drugs);
 
diff --git a/output.txt b/output.txt
index d3e0f699..dcc34f8a 100644
--- a/output.txt
+++ b/output.txt
@@ -1 +1 @@
-[{"name":"Doliprane","expiresIn":19,"benefit":29},{"name":"Herbal Tea","expiresIn":9,"benefit":6},{"name":"Fervex","expiresIn":4,"benefit":43},{"name":"Magic Pill","expiresIn":15,"benefit":40}],[{"name":"Doliprane","expiresIn":18,"benefit":28},{"name":"Herbal Tea","expiresIn":8,"benefit":7},{"name":"Fervex","expiresIn":3,"benefit":46},{"name":"Magic Pill","expiresIn":15,"benefit":40}],[{"name":"Doliprane","expiresIn":17,"benefit":27},{"name":"Herbal Tea","expiresIn":7,"benefit":8},{"name":"Fervex","expiresIn":2,"benefit":49},{"name":"Magic Pill","expiresIn":15,"benefit":40}],[{"name":"Doliprane","expiresIn":16,"benefit":26},{"name":"Herbal Tea","expiresIn":6,"benefit":9},{"name":"Fervex","expiresIn":1,"benefit":50},{"name":"Magic Pill","expiresIn":15,"benefit":40}],[{"name":"Doliprane","expiresIn":15,"benefit":25},{"name":"Herbal Tea","expiresIn":5,"benefit":10},{"name":"Fervex","expiresIn":0,"benefit":50},{"name":"Magic Pill","expiresIn":15,"benefit":40}],[{"name":"Doliprane","expiresIn":14,"benefit":24},{"name":"Herbal Tea","expiresIn":4,"benefit":11},{"name":"Fervex","expiresIn":-1,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40}],[{"name":"Doliprane","expiresIn":13,"benefit":23},{"name":"Herbal Tea","expiresIn":3,"benefit":12},{"name":"Fervex","expiresIn":-2,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40}],[{"name":"Doliprane","expiresIn":12,"benefit":22},{"name":"Herbal Tea","expiresIn":2,"benefit":13},{"name":"Fervex","expiresIn":-3,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40}],[{"name":"Doliprane","expiresIn":11,"benefit":21},{"name":"Herbal Tea","expiresIn":1,"benefit":14},{"name":"Fervex","expiresIn":-4,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40}],[{"name":"Doliprane","expiresIn":10,"benefit":20},{"name":"Herbal Tea","expiresIn":0,"benefit":15},{"name":"Fervex","expiresIn":-5,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40}],[{"name":"Doliprane","expiresIn":9,"benefit":19},{"name":"Herbal Tea","expiresIn":-1,"benefit":17},{"name":"Fervex","expiresIn":-6,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40}],[{"name":"Doliprane","expiresIn":8,"benefit":18},{"name":"Herbal Tea","expiresIn":-2,"benefit":19},{"name":"Fervex","expiresIn":-7,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40}],[{"name":"Doliprane","expiresIn":7,"benefit":17},{"name":"Herbal Tea","expiresIn":-3,"benefit":21},{"name":"Fervex","expiresIn":-8,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40}],[{"name":"Doliprane","expiresIn":6,"benefit":16},{"name":"Herbal Tea","expiresIn":-4,"benefit":23},{"name":"Fervex","expiresIn":-9,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40}],[{"name":"Doliprane","expiresIn":5,"benefit":15},{"name":"Herbal Tea","expiresIn":-5,"benefit":25},{"name":"Fervex","expiresIn":-10,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40}],[{"name":"Doliprane","expiresIn":4,"benefit":14},{"name":"Herbal Tea","expiresIn":-6,"benefit":27},{"name":"Fervex","expiresIn":-11,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40}],[{"name":"Doliprane","expiresIn":3,"benefit":13},{"name":"Herbal Tea","expiresIn":-7,"benefit":29},{"name":"Fervex","expiresIn":-12,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40}],[{"name":"Doliprane","expiresIn":2,"benefit":12},{"name":"Herbal Tea","expiresIn":-8,"benefit":31},{"name":"Fervex","expiresIn":-13,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40}],[{"name":"Doliprane","expiresIn":1,"benefit":11},{"name":"Herbal Tea","expiresIn":-9,"benefit":33},{"name":"Fervex","expiresIn":-14,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40}],[{"name":"Doliprane","expiresIn":0,"benefit":10},{"name":"Herbal Tea","expiresIn":-10,"benefit":35},{"name":"Fervex","expiresIn":-15,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40}],[{"name":"Doliprane","expiresIn":-1,"benefit":8},{"name":"Herbal Tea","expiresIn":-11,"benefit":37},{"name":"Fervex","expiresIn":-16,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40}],[{"name":"Doliprane","expiresIn":-2,"benefit":6},{"name":"Herbal Tea","expiresIn":-12,"benefit":39},{"name":"Fervex","expiresIn":-17,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40}],[{"name":"Doliprane","expiresIn":-3,"benefit":4},{"name":"Herbal Tea","expiresIn":-13,"benefit":41},{"name":"Fervex","expiresIn":-18,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40}],[{"name":"Doliprane","expiresIn":-4,"benefit":2},{"name":"Herbal Tea","expiresIn":-14,"benefit":43},{"name":"Fervex","expiresIn":-19,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40}],[{"name":"Doliprane","expiresIn":-5,"benefit":0},{"name":"Herbal Tea","expiresIn":-15,"benefit":45},{"name":"Fervex","expiresIn":-20,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40}],[{"name":"Doliprane","expiresIn":-6,"benefit":0},{"name":"Herbal Tea","expiresIn":-16,"benefit":47},{"name":"Fervex","expiresIn":-21,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40}],[{"name":"Doliprane","expiresIn":-7,"benefit":0},{"name":"Herbal Tea","expiresIn":-17,"benefit":49},{"name":"Fervex","expiresIn":-22,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40}],[{"name":"Doliprane","expiresIn":-8,"benefit":0},{"name":"Herbal Tea","expiresIn":-18,"benefit":50},{"name":"Fervex","expiresIn":-23,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40}],[{"name":"Doliprane","expiresIn":-9,"benefit":0},{"name":"Herbal Tea","expiresIn":-19,"benefit":50},{"name":"Fervex","expiresIn":-24,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40}],[{"name":"Doliprane","expiresIn":-10,"benefit":0},{"name":"Herbal Tea","expiresIn":-20,"benefit":50},{"name":"Fervex","expiresIn":-25,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40}]
\ No newline at end of file
+[{"name":"Doliprane","expiresIn":19,"benefit":29},{"name":"Herbal Tea","expiresIn":9,"benefit":6},{"name":"Fervex","expiresIn":4,"benefit":43},{"name":"Magic Pill","expiresIn":15,"benefit":40},{"name":"Dafalgan","expiresIn":14,"benefit":38}],[{"name":"Doliprane","expiresIn":18,"benefit":28},{"name":"Herbal Tea","expiresIn":8,"benefit":7},{"name":"Fervex","expiresIn":3,"benefit":46},{"name":"Magic Pill","expiresIn":15,"benefit":40},{"name":"Dafalgan","expiresIn":13,"benefit":36}],[{"name":"Doliprane","expiresIn":17,"benefit":27},{"name":"Herbal Tea","expiresIn":7,"benefit":8},{"name":"Fervex","expiresIn":2,"benefit":49},{"name":"Magic Pill","expiresIn":15,"benefit":40},{"name":"Dafalgan","expiresIn":12,"benefit":34}],[{"name":"Doliprane","expiresIn":16,"benefit":26},{"name":"Herbal Tea","expiresIn":6,"benefit":9},{"name":"Fervex","expiresIn":1,"benefit":50},{"name":"Magic Pill","expiresIn":15,"benefit":40},{"name":"Dafalgan","expiresIn":11,"benefit":32}],[{"name":"Doliprane","expiresIn":15,"benefit":25},{"name":"Herbal Tea","expiresIn":5,"benefit":10},{"name":"Fervex","expiresIn":0,"benefit":50},{"name":"Magic Pill","expiresIn":15,"benefit":40},{"name":"Dafalgan","expiresIn":10,"benefit":30}],[{"name":"Doliprane","expiresIn":14,"benefit":24},{"name":"Herbal Tea","expiresIn":4,"benefit":11},{"name":"Fervex","expiresIn":-1,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40},{"name":"Dafalgan","expiresIn":9,"benefit":28}],[{"name":"Doliprane","expiresIn":13,"benefit":23},{"name":"Herbal Tea","expiresIn":3,"benefit":12},{"name":"Fervex","expiresIn":-2,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40},{"name":"Dafalgan","expiresIn":8,"benefit":26}],[{"name":"Doliprane","expiresIn":12,"benefit":22},{"name":"Herbal Tea","expiresIn":2,"benefit":13},{"name":"Fervex","expiresIn":-3,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40},{"name":"Dafalgan","expiresIn":7,"benefit":24}],[{"name":"Doliprane","expiresIn":11,"benefit":21},{"name":"Herbal Tea","expiresIn":1,"benefit":14},{"name":"Fervex","expiresIn":-4,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40},{"name":"Dafalgan","expiresIn":6,"benefit":22}],[{"name":"Doliprane","expiresIn":10,"benefit":20},{"name":"Herbal Tea","expiresIn":0,"benefit":15},{"name":"Fervex","expiresIn":-5,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40},{"name":"Dafalgan","expiresIn":5,"benefit":20}],[{"name":"Doliprane","expiresIn":9,"benefit":19},{"name":"Herbal Tea","expiresIn":-1,"benefit":17},{"name":"Fervex","expiresIn":-6,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40},{"name":"Dafalgan","expiresIn":4,"benefit":18}],[{"name":"Doliprane","expiresIn":8,"benefit":18},{"name":"Herbal Tea","expiresIn":-2,"benefit":19},{"name":"Fervex","expiresIn":-7,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40},{"name":"Dafalgan","expiresIn":3,"benefit":16}],[{"name":"Doliprane","expiresIn":7,"benefit":17},{"name":"Herbal Tea","expiresIn":-3,"benefit":21},{"name":"Fervex","expiresIn":-8,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40},{"name":"Dafalgan","expiresIn":2,"benefit":14}],[{"name":"Doliprane","expiresIn":6,"benefit":16},{"name":"Herbal Tea","expiresIn":-4,"benefit":23},{"name":"Fervex","expiresIn":-9,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40},{"name":"Dafalgan","expiresIn":1,"benefit":12}],[{"name":"Doliprane","expiresIn":5,"benefit":15},{"name":"Herbal Tea","expiresIn":-5,"benefit":25},{"name":"Fervex","expiresIn":-10,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40},{"name":"Dafalgan","expiresIn":0,"benefit":10}],[{"name":"Doliprane","expiresIn":4,"benefit":14},{"name":"Herbal Tea","expiresIn":-6,"benefit":27},{"name":"Fervex","expiresIn":-11,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40},{"name":"Dafalgan","expiresIn":-1,"benefit":6}],[{"name":"Doliprane","expiresIn":3,"benefit":13},{"name":"Herbal Tea","expiresIn":-7,"benefit":29},{"name":"Fervex","expiresIn":-12,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40},{"name":"Dafalgan","expiresIn":-2,"benefit":2}],[{"name":"Doliprane","expiresIn":2,"benefit":12},{"name":"Herbal Tea","expiresIn":-8,"benefit":31},{"name":"Fervex","expiresIn":-13,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40},{"name":"Dafalgan","expiresIn":-3,"benefit":-2}],[{"name":"Doliprane","expiresIn":1,"benefit":11},{"name":"Herbal Tea","expiresIn":-9,"benefit":33},{"name":"Fervex","expiresIn":-14,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40},{"name":"Dafalgan","expiresIn":-4,"benefit":-2}],[{"name":"Doliprane","expiresIn":0,"benefit":10},{"name":"Herbal Tea","expiresIn":-10,"benefit":35},{"name":"Fervex","expiresIn":-15,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40},{"name":"Dafalgan","expiresIn":-5,"benefit":-2}],[{"name":"Doliprane","expiresIn":-1,"benefit":8},{"name":"Herbal Tea","expiresIn":-11,"benefit":37},{"name":"Fervex","expiresIn":-16,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40},{"name":"Dafalgan","expiresIn":-6,"benefit":-2}],[{"name":"Doliprane","expiresIn":-2,"benefit":6},{"name":"Herbal Tea","expiresIn":-12,"benefit":39},{"name":"Fervex","expiresIn":-17,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40},{"name":"Dafalgan","expiresIn":-7,"benefit":-2}],[{"name":"Doliprane","expiresIn":-3,"benefit":4},{"name":"Herbal Tea","expiresIn":-13,"benefit":41},{"name":"Fervex","expiresIn":-18,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40},{"name":"Dafalgan","expiresIn":-8,"benefit":-2}],[{"name":"Doliprane","expiresIn":-4,"benefit":2},{"name":"Herbal Tea","expiresIn":-14,"benefit":43},{"name":"Fervex","expiresIn":-19,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40},{"name":"Dafalgan","expiresIn":-9,"benefit":-2}],[{"name":"Doliprane","expiresIn":-5,"benefit":0},{"name":"Herbal Tea","expiresIn":-15,"benefit":45},{"name":"Fervex","expiresIn":-20,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40},{"name":"Dafalgan","expiresIn":-10,"benefit":-2}],[{"name":"Doliprane","expiresIn":-6,"benefit":0},{"name":"Herbal Tea","expiresIn":-16,"benefit":47},{"name":"Fervex","expiresIn":-21,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40},{"name":"Dafalgan","expiresIn":-11,"benefit":-2}],[{"name":"Doliprane","expiresIn":-7,"benefit":0},{"name":"Herbal Tea","expiresIn":-17,"benefit":49},{"name":"Fervex","expiresIn":-22,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40},{"name":"Dafalgan","expiresIn":-12,"benefit":-2}],[{"name":"Doliprane","expiresIn":-8,"benefit":0},{"name":"Herbal Tea","expiresIn":-18,"benefit":49},{"name":"Fervex","expiresIn":-23,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40},{"name":"Dafalgan","expiresIn":-13,"benefit":-2}],[{"name":"Doliprane","expiresIn":-9,"benefit":0},{"name":"Herbal Tea","expiresIn":-19,"benefit":49},{"name":"Fervex","expiresIn":-24,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40},{"name":"Dafalgan","expiresIn":-14,"benefit":-2}],[{"name":"Doliprane","expiresIn":-10,"benefit":0},{"name":"Herbal Tea","expiresIn":-20,"benefit":49},{"name":"Fervex","expiresIn":-25,"benefit":0},{"name":"Magic Pill","expiresIn":15,"benefit":40},{"name":"Dafalgan","expiresIn":-15,"benefit":-2}]
\ No newline at end of file
diff --git a/pharmacy.js b/pharmacy.js
index cda44c41..ea491d31 100644
--- a/pharmacy.js
+++ b/pharmacy.js
@@ -1,66 +1,67 @@
 export class Drug {
-  constructor(name, expiresIn, benefit) {
-    this.name = name;
-    this.expiresIn = expiresIn;
-    this.benefit = benefit;
-  }
+    constructor(name, expiresIn, benefit) {
+        this.name = name;
+        this.expiresIn = expiresIn;
+        this.benefit = benefit;
+    }
 }
-
 export class Pharmacy {
-  constructor(drugs = []) {
-    this.drugs = drugs;
-  }
-  updateBenefitValue() {
-    for (var i = 0; i < this.drugs.length; i++) {
-      if (
-        this.drugs[i].name != "Herbal Tea" &&
-        this.drugs[i].name != "Fervex"
-      ) {
-        if (this.drugs[i].benefit > 0) {
-          if (this.drugs[i].name != "Magic Pill") {
-            this.drugs[i].benefit = this.drugs[i].benefit - 1;
-          }
-        }
-      } else {
-        if (this.drugs[i].benefit < 50) {
-          this.drugs[i].benefit = this.drugs[i].benefit + 1;
-          if (this.drugs[i].name == "Fervex") {
-            if (this.drugs[i].expiresIn < 11) {
-              if (this.drugs[i].benefit < 50) {
-                this.drugs[i].benefit = this.drugs[i].benefit + 1;
-              }
-            }
-            if (this.drugs[i].expiresIn < 6) {
-              if (this.drugs[i].benefit < 50) {
-                this.drugs[i].benefit = this.drugs[i].benefit + 1;
-              }
-            }
-          }
-        }
-      }
-      if (this.drugs[i].name != "Magic Pill") {
-        this.drugs[i].expiresIn = this.drugs[i].expiresIn - 1;
-      }
-      if (this.drugs[i].expiresIn < 0) {
-        if (this.drugs[i].name != "Herbal Tea") {
-          if (this.drugs[i].name != "Fervex") {
-            if (this.drugs[i].benefit > 0) {
-              if (this.drugs[i].name != "Magic Pill") {
-                this.drugs[i].benefit = this.drugs[i].benefit - 1;
-              }
+    constructor(drugs = []) {
+        this.drugs = drugs;
+    }
+    updateBenefitValue() {
+        for (var i = 0; i < this.drugs.length; i++) {
+            switch (this.drugs[i].name) {
+                case "Herbal Tea":
+                    this.drugs[i].benefit < 49 && this.drugs[i].expiresIn > 0 ?
+                        (this.drugs[i].benefit = this.drugs[i].benefit + 1) && (this.drugs[i].expiresIn = this.drugs[i].expiresIn - 1)
+                        :
+                        this.drugs[i].expiresIn <= 0 && this.drugs[i].benefit < 49 ?
+                            (this.drugs[i].expiresIn = this.drugs[i].expiresIn - 1) && (this.drugs[i].benefit = this.drugs[i].benefit + 2)
+                            :
+                            (this.drugs[i].expiresIn = this.drugs[i].expiresIn - 1) && (this.drugs[i].benefit = this.drugs[i].benefit)
+                    break;
+                case "Fervex":
+                    this.drugs[i].benefit < 50 ?
+                        this.drugs[i].expiresIn > 0 ?
+                            (this.drugs[i].expiresIn < 6) && (this.drugs[i].benefit < 47) ?
+                                (this.drugs[i].expiresIn = this.drugs[i].expiresIn - 1) && (this.drugs[i].benefit = this.drugs[i].benefit + 3)
+                                :
+                                (this.drugs[i].expiresIn < 11) && (this.drugs[i].benefit < 48) ?
+                                    (this.drugs[i].expiresIn = this.drugs[i].expiresIn - 1) && (this.drugs[i].benefit = this.drugs[i].benefit + 2)
+                                    :
+                                    (this.drugs[i].expiresIn = this.drugs[i].expiresIn - 1) && (this.drugs[i].benefit = this.drugs[i].benefit + 1)
+                            :
+                            (this.drugs[i].expiresIn = this.drugs[i].expiresIn - 1) && (this.drugs[i].benefit = this.drugs[i].benefit)
+                        :
+                        (this.drugs[i].expiresIn = this.drugs[i].expiresIn - 1) && (this.drugs[i].benefit = 0)
+                    break;
+                case "Magic Pill":
+                    this.drugs[i].expiresIn = this.drugs[i].expiresIn
+                    this.drugs[i].benefit < 0 ? this.drugs[i].benefit = 0 : this.drugs[i].benefit = this.drugs[i].benefit
+                    break;
+                case "Dafalgan":
+                    this.drugs[i].benefit > 0 && this.drugs[i].benefit < 50 ?
+                        this.drugs[i].expiresIn <= 0 && this.drugs[i].benefit > 0 ?
+                            this.drugs[i].benefit = this.drugs[i].benefit - 4
+                            :
+                            this.drugs[i].benefit = this.drugs[i].benefit - 2
+                        :
+                        this.drugs[i].benefit
+                    this.drugs[i].expiresIn = this.drugs[i].expiresIn - 1
+                    break;
+                default:
+                    this.drugs[i].benefit > 0 && this.drugs[i].benefit < 50 ?
+                        this.drugs[i].expiresIn <= 0 && this.drugs[i].benefit > 0 ?
+                            this.drugs[i].benefit = this.drugs[i].benefit - 2
+                            :
+                            this.drugs[i].benefit = this.drugs[i].benefit - 1
+                        :
+                        this.drugs[i].benefit
+                    this.drugs[i].expiresIn = this.drugs[i].expiresIn - 1
+                    break;
             }
-          } else {
-            this.drugs[i].benefit =
-              this.drugs[i].benefit - this.drugs[i].benefit;
-          }
-        } else {
-          if (this.drugs[i].benefit < 50) {
-            this.drugs[i].benefit = this.drugs[i].benefit + 1;
-          }
         }
-      }
+        return this.drugs;
     }
-
-    return this.drugs;
-  }
-}
+}
\ No newline at end of file
diff --git a/pharmacy.test.js b/pharmacy.test.js
index f0925fc1..06e32f22 100644
--- a/pharmacy.test.js
+++ b/pharmacy.test.js
@@ -1,9 +1,53 @@
 import { Drug, Pharmacy } from "./pharmacy";
-
 describe("Pharmacy", () => {
   it("should decrease the benefit and expiresIn", () => {
     expect(new Pharmacy([new Drug("test", 2, 3)]).updateBenefitValue()).toEqual(
       [new Drug("test", 1, 2)]
     );
   });
-});
+  it("should decrease the benefit twice as fast and expiresIn by 1", () => {
+    expect(new Pharmacy([new Drug("test", -1, 3)]).updateBenefitValue()).toEqual(
+      [new Drug("test", -2, 1)]
+    );
+  });
+  it("should decrease expiresIn and increase the benefit by 3", () => {
+    expect(new Pharmacy([new Drug("Fervex", 5, 3)]).updateBenefitValue()).toEqual(
+      [new Drug("Fervex", 4, 6)]
+    );
+  });
+  it("should decrease expiresIn and increase the benefit by 2", () => {
+    expect(new Pharmacy([new Drug("Fervex", 10, 3)]).updateBenefitValue()).toEqual(
+      [new Drug("Fervex", 9, 5)]
+    );
+  });
+  it("should decrease expiresIn and benefit", () => {
+    expect(new Pharmacy([new Drug("Fervex", 11, 46)]).updateBenefitValue()).toEqual(
+      [new Drug("Fervex", 10, 47)]
+    );
+  });
+  it("should decrease expiresIn and keep benefit equals to 0", () => {
+    expect(new Pharmacy([new Drug("Fervex", -1, 0)]).updateBenefitValue()).toEqual(
+      [new Drug("Fervex", -2, 0)]
+    );
+  });
+  it("should decrease expiresIn and increase the benefit", () => {
+    expect(new Pharmacy([new Drug("Herbal Tea", 1, 10)]).updateBenefitValue()).toEqual(
+      [new Drug("Herbal Tea", 0, 11)]
+    );
+  });
+  it("should decrease expiresIn and increase the benefit by 2", () => {
+    expect(new Pharmacy([new Drug("Herbal Tea", -1, 12)]).updateBenefitValue()).toEqual(
+      [new Drug("Herbal Tea", -2, 14)]
+    );
+  });
+  it("should nor decrease nor increase expiresIn and benefit", () => {
+    expect(new Pharmacy([new Drug("Magic Pill", 0, 14)]).updateBenefitValue()).toEqual(
+      [new Drug("Magic Pill", 0, 14)]
+    );
+  });
+  it("should increase twice as fast as normal drugs", () => {
+    expect(new Pharmacy([new Drug("Dafalgan", -1, 14)]).updateBenefitValue()).toEqual(
+      [new Drug("Dafalgan", -2, 10)]
+    );
+  });
+});
\ No newline at end of file