Inato refactoring | Add dafalgan✅

__tests__/entities/Drug.test.js

@@ -0,0 +1,24 @@
+import Drug from '../../entities/Drug';
+
+describe('Drug', () => {
+  // Test case for the constructor
+  it('should create a drug with the given name, expiresIn, and benefit', () => {
+    const drug = new Drug('Aspirin', 10, 5);
+    expect(drug.name).toBe('Aspirin');
+    expect(drug.expiresIn).toBe(10);
+    expect(drug.benefit).toBe(5);
+  });
+
+  // Test case for isExpired method
+  describe('isExpired', () => {
+    it('should return true if expiresIn is less than 0', () => {
+      const expiredDrug = new Drug('ExpiredDrug', -1, 5);
+      expect(expiredDrug.isExpired()).toBe(true);
+    });
+
+    it('should return false if expiresIn is greater than or equal to 0', () => {
+      const nonExpiredDrug = new Drug('NonExpiredDrug', 5, 10);
+      expect(nonExpiredDrug.isExpired()).toBe(false);
+    });
+  });
+});

__tests__/entities/Pharmacy.test.js

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+import Pharmacy from '../../entities/Pharmacy';
+import HerbalTeaStrategy from '../../strategies/HerbalTeaStrategy';
+import MagicPillStrategy from '../../strategies/MagicPillStrategy';
+import FervexStrategy from '../../strategies/FervexStrategy';
+import DafalganStrategy from '../../strategies/DafalganStrategy';
+import DefaultStrategy from '../../strategies/DefaultStrategy';
+
+jest.mock('../../strategies/HerbalTeaStrategy');
+jest.mock('../../strategies/MagicPillStrategy');
+jest.mock('../../strategies/FervexStrategy');
+jest.mock('../../strategies/DafalganStrategy');
+jest.mock('../../strategies/DefaultStrategy');
+
+describe('Pharmacy', () => {
+  describe('updateBenefitValue method', () => {
+    afterEach(() => {
+      jest.clearAllMocks();
+    });
+
+    it('should update benefit value using HerbalTeaStrategy for Herbal Tea drug', () => {
+      const herbalTeaDrug = { name: 'Herbal Tea', expiresIn: 5, benefit: 10 };
+      const pharmacy = new Pharmacy([herbalTeaDrug]);
+      pharmacy.updateBenefitValue();
+      expect(HerbalTeaStrategy.mock.instances[0].update).toHaveBeenCalledWith(herbalTeaDrug);
+    });
+
+    it('should update benefit value using MagicPillStrategy for Magic Pill drug', () => {
+      const magicPillDrug = { name: 'Magic Pill', expiresIn: 10, benefit: 20 };
+      const pharmacy = new Pharmacy([magicPillDrug]);
+      pharmacy.updateBenefitValue();
+      expect(MagicPillStrategy.mock.instances[0].update).toHaveBeenCalledWith(magicPillDrug);
+    });
+
+    it('should update benefit value using FervexStrategy for Fervex drug', () => {
+      const fervexDrug = { name: 'Fervex', expiresIn: 8, benefit: 30 };
+      const pharmacy = new Pharmacy([fervexDrug]);
+      pharmacy.updateBenefitValue();
+      expect(FervexStrategy.mock.instances[0].update).toHaveBeenCalledWith(fervexDrug);
+    });
+
+    it('should update benefit value using DafalganStrategy for Dafalgan drug', () => {
+      const dafalganDrug = { name: 'Dafalgan', expiresIn: 3, benefit: 25 };
+      const pharmacy = new Pharmacy([dafalganDrug]);
+      pharmacy.updateBenefitValue();
+      expect(DafalganStrategy.mock.instances[0].update).toHaveBeenCalledWith(dafalganDrug);
+    });
+
+    it('should update benefit value using DefaultStrategy for unknown drug', () => {
+      const unknownDrug = { name: 'UnknownDrug', expiresIn: 5, benefit: 15 };
+      const pharmacy = new Pharmacy([unknownDrug]);
+      pharmacy.updateBenefitValue();
+      expect(DefaultStrategy.mock.instances[0].update).toHaveBeenCalledWith(unknownDrug);
+    });
+  });
+});

__tests__/index.test.js

@@ -0,0 +1,22 @@
+const fs = require('fs');
+const path = require('path');
+const { execSync } = require('child_process');
+
+describe('Generated File Test', () => {
+  it('should match the content of the expected file', () => {
+    // Run script to generate the file
+    execSync('babel-node index.js', { stdio: 'inherit' });
+
+    const generatedFilePath = path.join(__dirname, '../output.txt');
+    const expectedFilePath = path.join(__dirname, '../expectedOutput.txt');
+
+    // Read the contents of the generated file
+    const generatedFileContent = fs.readFileSync(generatedFilePath, 'utf8');
+
+    // Read the contents of the expected file
+    const expectedFileContent = fs.readFileSync(expectedFilePath, 'utf8');
+
+    // Compare the contents
+    expect(generatedFileContent).toEqual(expectedFileContent);
+  });
+});

__tests__/strategies/DafalganStrategy.test.js

@@ -0,0 +1,27 @@
+import Drug from '../../entities/Drug';
+import DafalganStrategy from '../../strategies/DafalganStrategy';
+
+describe('DafalganStrategy', () => {
+  describe('update method', () => {
+    it('should decrement expiresIn by 1', () => {
+      let drug = new Drug("Dafalgan", 6, 10);
+      const strategy = new DafalganStrategy();
+      drug = strategy.update(drug);
+      expect(drug.expiresIn).toBe(5);
+    });
+
+    it('should decrement benefit by 4 when expiresIn is less than or equal to 0', () => {
+      let drug = new Drug("Dafalgan", 0, 10);
+      const strategy = new DafalganStrategy();
+      drug = strategy.update(drug);
+      expect(drug.benefit).toBe(6);
+    });
+
+    it('should decrement benefit by 2 when expiresIn is greater than 0', () => {
+      let drug = new Drug("Dafalgan", 5, 10);
+      const strategy = new DafalganStrategy();
+      drug = strategy.update(drug);
+      expect(drug.benefit).toBe(8);
+    });
+  });
+});

__tests__/strategies/DefaultStrategy.test.js

@@ -0,0 +1,27 @@
+import Drug from '../../entities/Drug';
+import DefaultStrategy from '../../strategies/DefaultStrategy';
+
+describe('DefaultStrategy', () => {
+  describe('update method', () => {
+    it('should decrement expiresIn by 1', () => {
+      const drug = new Drug("Doliprane", 5, 10);
+      const strategy = new DefaultStrategy();
+      strategy.update(drug);
+      expect(drug.expiresIn).toBe(4);
+    });
+
+    it('should decrement benefit by 1 when expiresIn is greater than 0', () => {
+      const drug = new Drug("Doliprane", 5, 10);
+      const strategy = new DefaultStrategy();
+      strategy.update(drug);
+      expect(drug.benefit).toBe(9);
+    });
+
+    it('should decrement benefit by 2 when expiresIn is less than or equal to 0', () => {
+      const drug = new Drug("Doliprane", 0, 10);
+      const strategy = new DefaultStrategy();
+      strategy.update(drug);
+      expect(drug.benefit).toBe(8);
+    });
+  });
+});

__tests__/strategies/FervexStrategy.test.js

@@ -0,0 +1,48 @@
+import Drug from '../../entities/Drug';
+import FervexStrategy from '../../strategies/FervexStrategy';
+
+describe('FervexStrategy', () => {
+  describe('update method', () => {
+    it('should decrement expiresIn by 1', () => {
+      let drug = new Drug('Fervex', 6, 10);
+      const strategy = new FervexStrategy();
+      drug = strategy.update(drug);
+      expect(drug.expiresIn).toBe(5);
+    });
+
+    it('should set benefit to 0 when expiresIn is less than or equal to 0', () => {
+      let drug = new Drug('Fervex', 0, 10);
+      const strategy = new FervexStrategy();
+      drug = strategy.update(drug);
+      expect(drug.benefit).toBe(0);
+    });
+
+    it('should increase benefit by 3 when expiresIn is 5 or less, up to a maximum of 50', () => {
+      let drug = new Drug('Fervex', 5, 10);
+      const strategy = new FervexStrategy();
+      drug = strategy.update(drug);
+      expect(drug.benefit).toBe(13);
+    });
+
+    it('should increase benefit by 2 when expiresIn is 10 or less, up to a maximum of 50', () => {
+      let drug = new Drug('Fervex', 8, 10);
+      const strategy = new FervexStrategy();
+      drug = strategy.update(drug);
+      expect(drug.benefit).toBe(12);
+    });
+
+    it('should increase benefit by 1 when expiresIn is more than 10, up to a maximum of 50', () => {
+      let drug = new Drug('Fervex', 15, 10);
+      const strategy = new FervexStrategy();
+      drug = strategy.update(drug);
+      expect(drug.benefit).toBe(11);
+    });
+
+    it('should not exceed maximum benefit of 50', () => {
+      let drug = new Drug('Fervex', 5, 48);
+      const strategy = new FervexStrategy();
+      drug = strategy.update(drug);
+      expect(drug.benefit).toBe(50);
+    });
+  });
+});

__tests__/strategies/HerbalTeaStrategy.test.js

@@ -0,0 +1,34 @@
+import Drug from '../../entities/Drug';
+import HerbalTeaStrategy from '../../strategies/HerbalTeaStrategy';
+
+describe('HerbalTeaStrategy', () => {
+  describe('update method', () => {
+    it('should decrement expiresIn by 1', () => {
+      let drug = new Drug('Herbal Tea', 6, 10);
+      const strategy = new HerbalTeaStrategy();
+      drug = strategy.update(drug);
+      expect(drug.expiresIn).toBe(5);
+    });
+
+    it('should increase benefit by 2 when expiresIn is less than or equal to 0, up to a maximum of 50', () => {
+      let drug = new Drug('Herbal Tea', 0, 10);
+      const strategy = new HerbalTeaStrategy();
+      drug = strategy.update(drug);
+      expect(drug.benefit).toBe(12);
+    });
+
+    it('should increase benefit by 1 when expiresIn is greater than 0, up to a maximum of 50', () => {
+      let drug = new Drug('Herbal Tea', 5, 10);
+      const strategy = new HerbalTeaStrategy();
+      drug = strategy.update(drug);
+      expect(drug.benefit).toBe(11);
+    });
+
+    it('should not exceed maximum benefit of 50', () => {
+      let drug = new Drug('Herbal Tea', 0, 49);
+      const strategy = new HerbalTeaStrategy();
+      drug = strategy.update(drug);
+      expect(drug.benefit).toBe(50);
+    });
+  });
+});

__tests__/strategies/MagicPillStrategy.test.js

@@ -0,0 +1,12 @@
+import MagicPillStrategy from '../../strategies/MagicPillStrategy';
+
+describe('MagicPillStrategy', () => {
+  describe('update method', () => {
+    it('should return the same drug without any modifications', () => {
+      const originalDrug = { name: 'Magic Pill', expiresIn: 10, benefit: 20 };
+      const strategy = new MagicPillStrategy();
+      const updatedDrug = strategy.update(originalDrug);
+      expect(updatedDrug).toEqual(originalDrug);
+    });
+  });
+});

__tests__/utils/forceRange.test.js

@@ -0,0 +1,42 @@
+import forceRange from '../../utils/forceRange';
+
+describe('forceRange', () => {
+  it('should return the value when it is within the specified range', () => {
+    const result = forceRange(10, 5, 20);
+    expect(result).toBe(10);
+  });
+
+  it('should adjust the value to the minimum when it is below the specified range', () => {
+    const result = forceRange(3, 5, 20);
+    expect(result).toBe(5);
+  });
+
+  it('should adjust the value to the maximum when it is above the specified range', () => {
+    const result = forceRange(25, 5, 20);
+    expect(result).toBe(20);
+  });
+
+  it('should throw an error for undefined value', () => {
+    expect(() => forceRange(undefined, 5, 20)).toThrowError('Invalid value');
+  });
+
+  it('should throw an error for null value', () => {
+    expect(() => forceRange(null, 5, 20)).toThrowError('Invalid value');
+  });
+
+  it('should throw an error for undefined min', () => {
+    expect(() => forceRange(10, undefined, 20)).toThrowError('Invalid min');
+  });
+
+  it('should throw an error for null min', () => {
+    expect(() => forceRange(10, null, 20)).toThrowError('Invalid min');
+  });
+
+  it('should throw an error for undefined max', () => {
+    expect(() => forceRange(10, 5, undefined)).toThrowError('Invalid max');
+  });
+
+  it('should throw an error for null max', () => {
+    expect(() => forceRange(10, 5, null)).toThrowError('Invalid max');
+  });
+});

entities/Drug.js

@@ -0,0 +1,34 @@
+/**
+ * Represents a medicinal drug.
+ *
+ * @class Drug
+ * @param {string} name The name of the drug.
+ * @param {number} expiresIn The duration in days after which the drug expires.
+ * @param {number} benefit The initial benefit of the drug.
+ */
+export default class Drug {
+    /**
+     * Constructor for the Drug class.
+     *
+     * @param {string} name The name of the drug.
+     * @param {number} expiresIn The duration in days after which the drug expires.
+     * @param {number} benefit The initial benefit of the drug.
+     */
+    constructor(name, expiresIn, benefit) {
+      this.name = name;
+      this.expiresIn = expiresIn;
+      this.benefit = benefit;
+    }
+
+    /**
+     * Checks if the drug has expired.
+     *
+     * @method
+     * @name isExpired
+     * @returns {boolean} True if the drug has expired, false otherwise.
+     */
+    isExpired() {
+      return this.expiresIn < 0;
+    }
+  }
+

entities/Pharmacy.js

@@ -0,0 +1,52 @@
+/**
+ * Imports the strategy classes from the strategies directory.
+ */
+import DafalganStrategy from "../strategies/DafalganStrategy";
+import DefaultStrategy from "../strategies/DefaultStrategy";
+import FervexStrategy from "../strategies/FervexStrategy";
+import HerbalTeaStrategy from "../strategies/HerbalTeaStrategy";
+import MagicPillStrategy from "../strategies/MagicPillStrategy";
+
+/**
+ * Represents a pharmacy that manages and updates the benefit values of drugs.
+ *
+ * @class Pharmacy
+ * @param {Array<Drug>} drugs An array of drugs to manage.
+ */
+export default class Pharmacy {
+  /**
+   * Constructor for the Pharmacy class.
+   *
+   * @param {Array<Drug>} drugs An array of drugs to manage.
+   */
+  constructor(drugs = []) {
+    this.drugs = drugs;
+    this.strategies = {
+      "Herbal Tea": new HerbalTeaStrategy(),
+      "Magic Pill": new MagicPillStrategy(),
+      "Fervex": new FervexStrategy(),
+      "Dafalgan": new DafalganStrategy(),
+      "default": new DefaultStrategy()
+    }
+  }
+
+  /**
+   * Updates the benefit value of each drug based on its specific strategy.
+   *
+   * @returns {Array<Drug>} The updated list of drugs.
+   */
+  updateBenefitValue() {
+    for (let i = 0; i < this.drugs.length; i++) {
+      let drug = this.drugs[i];
+      const strategy = this.strategies[drug.name] || this.strategies.default;
+
+      try {
+        drug = strategy.update(drug);
+      } catch (error) {
+        console.error(`Error updating drug "${drug.name}": ${error.message}`);
+      }
+    }
+
+    return this.drugs;
+  }
+}

expectedOutput.txt

@@ -0,0 +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}]

index.js

@@ -1,5 +1,6 @@
-import { Drug, Pharmacy } from "./pharmacy";
 import fs from "fs";
+import Drug from "./entities/Drug";
+import Pharmacy from "./entities/Pharmacy";
 
 const drugs = [
   new Drug("Doliprane", 20, 30),