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Commit789516c

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Dictionary 🏁
1 parent3441c6d commit789516c

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2 files changed

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2 files changed

+81
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‎examples/datastructures/dictionary.js

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classDictionary{
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constructor(){
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this.dataStore=[];
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}
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set(key,value){
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this.dataStore[key]=value;
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}
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get(key){
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returnthis.dataStore[key];
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}
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remove(key){
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deletethis.dataStore[key];
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}
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showAll(){
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letstr="";
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for(letkeyofObject.keys(this.dataStore))
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str+=key+" -> "+this.dataStore[key]+"\n";
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returnstr;
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}
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clear(){
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this.dataStore=[];
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}
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}
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module.exports=Dictionary;
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constexpect=require('chai').expect;
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constDictionary=require('../../examples/datastructures/dictionary');
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describe('=> DICTIONARY',function(){
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letnumbers;
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before(function(){
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numbers=newDictionary();
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});
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it('should create an Empty Dictionary',function(done){
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expect(numbers.dataStore).to.deep.equal([]);
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done();
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});
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it('should set a <key,value> pair in the Dictionary',function(done){
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numbers.set("Champu",3370123459);
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numbers.set("Zhampak",123991283);
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numbers.set("Raju",7118780921);
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expect(numbers.dataStore["Champu"]).to.equal(3370123459);
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expect(numbers.dataStore["Zhampak"]).to.equal(123991283);
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expect(numbers.dataStore["Raju"]).to.equal(7118780921);
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done();
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});
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it('should get a value from the Dictionary',function(done){
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expect(numbers.get("Champu")).to.equal(3370123459);
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expect(numbers.get("Zhampak")).to.equal(123991283);
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expect(numbers.get("Raju")).to.equal(7118780921);
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done();
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});
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it('should show all values from the Dictionary',function(done){
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expect(numbers.showAll()).to.equal("Champu -> 3370123459\nZhampak -> 123991283\nRaju -> 7118780921\n");
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done();
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});
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it('should remove a value from the Dictionary',function(done){
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numbers.remove("Raju");
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expect(numbers.get("Raju")).to.equal(undefined);
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done();
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});
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describe('=> clear',function(){
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it('should clear the Dictionary',function(done){
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numbers.clear();
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expect(numbers.dataStore).to.deep.equal([]);
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done();
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});
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});
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});

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