Adding test to avoid duplicate Quotes

data/data.json

@@ -323,10 +323,6 @@
       "text":"I’m not afraid of dying, I’m afraid of not trying.",
       "from":"Jay Z, musician."
    },
-   {  
-      "text":"Whatever the mind can conceive and believe, the mind can achieve.",
-      "from":"Dr. Napoleon Hill, author of Think and Grow Rich."
-   },
    {  
       "text":"The longer you’re not taking action the more money you’re losing",
       "from":"Carrie Wilkerson"
@@ -499,10 +495,6 @@
       "text":"Failure defeats losers, failure inspires winners.",
       "from":"Robert T. Kiyosaki"
    },
-   {  
-      "text":"I have not failed. I’ve just found 10,000 ways that won’t work.",
-      "from":"Thomas Edison"
-   },
    {  
       "text":"The biggest failure you can have in life is not trying at all.",
       "from":"Emil Motycka"
@@ -679,10 +671,6 @@
       "text":"If you’re not making mistakes, then you’re not making decisions.",
       "from":"Catherine Cook"
    },
-   {  
-      "text":"Your most unhappy customers are your greatest source of learning.",
-      "from":"Bill Gates"
-   },
    {  
       "text":"One can get anything if he is willing to help enough others get what they want.",
       "from":"Zig Ziglar"
@@ -939,10 +927,6 @@
       "text":"A man must be big enough to admit his mistakes, smart enough to profit from them, and strong enough to correct them.",
       "from":"John C. Maxwell"
    },
-   {  
-      "text":"In the modern world of business, it is useless to be a creative, original thinker unless you can also sell what you create.",
-      "from":"David Ogilvy"
-   },
    {  
       "text":"Success is doing what you want, where you want, when you want, with whom you want as much as you want.",
       "from":"Tony Robbins"

test/test.js

@@ -1,46 +1,74 @@
 const expect = require('chai').expect,
-    { getQuote, getRandomQuote } = require('../lib/index');
+  { getQuote, getRandomQuote } = require('../lib/index');
+
+allQuotes = require('../data/data.json');
 
 describe('Running tests for methods of inspirational-quotes', () => {
-    describe('getQuote', () => {
-        it('should return an object', (done) => {
-            const randomQuote = getQuote();
-            expect(randomQuote).to.be.an('object');
-            done();
-        });
-        it('should contain text and author', (done) => {
-            const randomQuote = getQuote();
-            expect(randomQuote).to.have.property('author');
-            expect(randomQuote).to.have.property('text');
-            done();
-        });
-        it('should not contain empty text', (done) => {
-            const randomQuote = getQuote();
-            expect(randomQuote.text).to.not.be.empty;
-            done();
-        });
-        it('should not contain empty author', (done) => {
-            const randomQuote = getQuote();
-            expect(randomQuote.author).to.not.be.empty;
-            done();
-        });
-        it('should not return author field if author: false is passed', (done) => {
-            const randomQuote = getQuote({author: false});
-            expect(randomQuote).to.not.have.property('author');
-            expect(randomQuote).to.have.property('text');
-            done();
-        });
-    });
-    describe('getRandomQuote', () => {
-        it('should return a string', (done) => {
-            const randomQuote = getRandomQuote();
-            expect(randomQuote).to.be.an('string');
-            done();
-        });
-        it('should have length greater than 5', (done) => {
-            const randomQuote = getRandomQuote();
-            expect(randomQuote).to.have.length.greaterThan(5);
-            done();
-        });
+  describe('getQuote', () => {
+    it('should return an object', (done) => {
+      const randomQuote = getQuote();
+      expect(randomQuote).to.be.an('object');
+      done();
+    });
+    it('should contain text and author', (done) => {
+      const randomQuote = getQuote();
+      expect(randomQuote).to.have.property('author');
+      expect(randomQuote).to.have.property('text');
+      done();
+    });
+    it('should not contain empty text', (done) => {
+      const randomQuote = getQuote();
+      expect(randomQuote.text).to.not.be.empty;
+      done();
+    });
+    it('should not contain empty author', (done) => {
+      const randomQuote = getQuote();
+      expect(randomQuote.author).to.not.be.empty;
+      done();
+    });
+    it('should not return author field if author: false is passed', (done) => {
+      const randomQuote = getQuote({ author: false });
+      expect(randomQuote).to.not.have.property('author');
+      expect(randomQuote).to.have.property('text');
+      done();
+    });
+  });
+  describe('getRandomQuote', () => {
+    it('should return a string', (done) => {
+      const randomQuote = getRandomQuote();
+      expect(randomQuote).to.be.an('string');
+      done();
+    });
+    it('should have length greater than 5', (done) => {
+      const randomQuote = getRandomQuote();
+      expect(randomQuote).to.have.length.greaterThan(5);
+      done();
+    });
+  });
+  describe('data.json', () => {
+    it('should not have any duplicate quotes', (done) => {
+      let duplicates = [
+        ...allQuotes
+          .reduce((accumulator, current) => {
+            let text = current.text;
+            accumulator.set(text, (accumulator.get(text) || 0) + 1);
+            return accumulator;
+          }, new Map())
+          .entries(),
+      ]
+        .filter(([_, occurance]) => occurance > 1)
+        .map(([text, occurance]) => ({
+          text,
+          occurance,
+        }));
+
+        if(duplicates.length>0){
+            console.log(duplicates);
+        }
+
+      const hasDuplicates = duplicates.length > 0;
+      expect(hasDuplicates).to.be.false;
+      done();
     });
+  });
 });