Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

How to use compareObjects method in Jest

Best JavaScript code snippet using jest

util_spec.js

Source:util_spec.js

...24        });25    });26    describe('compareObjects', function() {27        it('numbers', function() {28            util.compareObjects(0,0).should.equal(true);29            util.compareObjects(0,1).should.equal(false);30            util.compareObjects(1000,1001).should.equal(false);31            util.compareObjects(1000,1000).should.equal(true);32            util.compareObjects(0,"0").should.equal(false);33            util.compareObjects(1,"1").should.equal(false);34            util.compareObjects(0,null).should.equal(false);35            util.compareObjects(0,undefined).should.equal(false);36        });37        it('strings', function() {38            util.compareObjects("","").should.equal(true);39            util.compareObjects("a","a").should.equal(true);40            util.compareObjects("",null).should.equal(false);41            util.compareObjects("",undefined).should.equal(false);42        });43        it('arrays', function() {44            util.compareObjects(["a"],["a"]).should.equal(true);45            util.compareObjects(["a"],["a","b"]).should.equal(false);46            util.compareObjects(["a","b"],["b"]).should.equal(false);47            util.compareObjects(["a"],"a").should.equal(false);48            util.compareObjects([[1],["a"]],[[1],["a"]]).should.equal(true);49            util.compareObjects([[1],["a"]],[["a"],[1]]).should.equal(false);50        });51        it('objects', function() {52            util.compareObjects({"a":1},{"a":1,"b":1}).should.equal(false);53            util.compareObjects({"a":1,"b":1},{"a":1,"b":1}).should.equal(true);54            util.compareObjects({"b":1,"a":1},{"a":1,"b":1}).should.equal(true);55        });56        it('Buffer', function() {57            util.compareObjects(new Buffer("hello"),new Buffer("hello")).should.equal(true);58            util.compareObjects(new Buffer("hello"),new Buffer("hello ")).should.equal(false);59        });60    });61    describe('ensureString', function() {62        it('strings are preserved', function() {63            util.ensureString('string').should.equal('string');64        });65        it('Buffer is converted', function() {66            var s = util.ensureString(new Buffer('foo'));67            s.should.equal('foo');68            (typeof s).should.equal('string');69        });70        it('Object is converted to JSON', function() {71            var s = util.ensureString({foo: "bar"});72            (typeof s).should.equal('string');...

compare-objects.js

Source:compare-objects.js

2import { compareObjects, flat } from '../../src';3import { Model } from 'bbmn-core';4describe('compareObjects', function(){5	it('when arguments are not objects should apply not strict equal', function(){6		expect(compareObjects(1,2)).to.be.false;7		expect(compareObjects('abc','abc')).to.be.true;8		expect(compareObjects('1',1)).to.be.true;9	});10	it('when arguments are not objects treat empty string as not equal zero', function(){11		expect(compareObjects('',0)).to.be.false;12		expect(compareObjects(0,'')).to.be.false;13	});14	it('when arguments are not objects treat empty string as not equal any nullable value', function(){15		expect(compareObjects('',null)).to.be.false;16		expect(compareObjects(null, '')).to.be.false;17		expect(compareObjects('',undefined)).to.be.false;18		expect(compareObjects(undefined, '')).to.be.false;19	});20	it('when arguments are null they are equal', function(){21		expect(compareObjects(null, undefined)).to.be.true;22		expect(compareObjects(undefined, null)).to.be.true;23	});24	25	it('when arguments are of different types should return false', function(){26		expect(compareObjects({}, () => {})).to.be.false;27		expect(compareObjects([],{})).to.be.false;28	});29	it('when objects keys do not match should return false', function(){30		expect(compareObjects({},{ a: 1 })).to.be.false;		31	});32	it('when there is no actual values should return true', function(){33		expect(compareObjects({},{ a: undefined })).to.be.true;		34	});	35	it('when objects keys and values mathced should return true', function(){36		expect(compareObjects(() => {}, () => {})).to.be.false;37		expect(compareObjects({ a: 'foo', b:'bar' },{ b: 'bar', a:'foo' })).to.be.true;	38		expect(compareObjects({ b:123 },{ a: 123 })).to.be.false;39	});	40	it('when arrays length are differs should return false', function(){41		expect(compareObjects([1,1], [1])).to.be.false;42	});		43	it('when arrays length are the same and values has doubles shuold return false', function(){44		expect(compareObjects([1, 1, 2, 2, 3], [1,2,3,3,3])).to.be.false;45	});		46	it('when arrays values and length the same should return true', function(){47		expect(compareObjects([3, 1, 2, 4], [4,2,1,3])).to.be.true;48	});	49	it('when there is a nested objects in an array and they do not match should return false', function(){50		expect(compareObjects([3, 1, 2, 4, {a: 1, b: 2 }], [4,2,1,3, { b: 2 }])).to.be.false;51	});	52	it('when there is a nested objects in an array and they are match should return true', function(){53		expect(compareObjects([3, 1, 2, 4, {a: 1, b: 2 }], [4,2,1,3, { b: 2, a: 1 } ])).to.be.true;		54	});	55	it('when there is a nested arrays in an object and they do not match should return false', function(){56		expect(compareObjects([3, 1, 2, 4, {a: 1, b: 2 }], [4,2,1,3, { b: 2 }])).to.be.false;57	});	58	it('when there is a nested arrays in an object and they are match should return true', function(){59		let a = {60			a:1,61			b:2,62			c: [3, 1, 2, 4, {a: 1, b: 2 }]63		}64		let b = {65			c: [4,2,1,3, { b: 2, a: 1 } ],66			a: 1,67			b: 268		}69		expect(compareObjects(a, b)).to.be.true;		70	});	71	it('when there is a nested arrays in an object and they do not match should return false', function(){72		let a = {73			a:1,74			b:2,75			c: [3, 1, 2, 4, {a: 1, b: 2 }]76		}77		let b = {78			c: [4, 2, 1, 3, 5, { b: 2, a: 1 } ],79			a: 1,80			b: 281		}82		expect(compareObjects(a, b)).to.be.false;83	});84	it('when comparing same object', function(){85		let test = {a:1, b: { b:2 } };86		expect(compareObjects(test, test)).to.be.true;87	});88	it('when comparing backbone models', function(){89		let a = new Model({id:1});90		let b = new Model();91		expect(compareObjects(a, b)).to.be.false;92	});	93	it('when comparing objects with circular references', function(){94		let a = {a:1, b: { b:2 } };95		let b = {a:1, b: { b:2 } };96		a.c = b;97		b.c = a;98		expect(compareObjects(a, b)).to.be.true;99	});		...

utils-test.js

Source:utils-test.js

...6    return store.ready()7  })8  describe('compareObjects', function() {9    it('compare primitives', function() {10      utils.compareObjects('a', 'a').should.be.equal(true)11      utils.compareObjects('a', 'b').should.be.equal(false)12    })13    it('compare arrays', function() {14      utils.compareObjects(['a'], ['a']).should.be.equal(true)15      utils.compareObjects(['a'], ['b']).should.be.equal(false)16      utils.compareObjects(['a'], ['a', 'b']).should.be.equal(false)17      utils.compareObjects(['a'], 'a').should.be.equal(false)18      utils.compareObjects(['a'], '[a]').should.be.equal(false)19    })20    it('compare objects', function() {21      utils.compareObjects({ foo: 'a' }, { foo: 'a' }).should.be.equal(true)22      utils.compareObjects({ foo: 'a' }, true).should.be.equal(false)23      utils.compareObjects({ foo: 'a' }, { foo: 'b' }).should.be.equal(false)24      utils25        .compareObjects({ foo: 'a' }, { foo: 'a', bar: 'a' })26        .should.be.equal(false)27      utils.compareObjects({ foo: 'a' }, '{"foo": "a"}').should.be.equal(false)28    })29    it('compare deep objects', function() {30      utils31        .compareObjects({ foo: { x: 'a' } }, { foo: { x: 'a' } }, true)32        .should.be.equal(true)33      utils34        .compareObjects({ foo: { x: 'a' } }, true, true)35        .should.be.equal(false)36      utils37        .compareObjects({ foo: { x: 'a' } }, { foo: 'b' }, true)38        .should.be.equal(false)39      utils40        .compareObjects(41          { foo: { x: 'a' } },42          { foo: { x: 'a' }, bar: { x: 'a' } },43          true44        )45        .should.be.equal(false)46    })47  })48  describe('addedArrayValues', function() {49    it('returns array with new elements', function() {50      utils.addedArrayValues(['a'], ['a', 'b']).should.be.eql(['b'])51      utils.addedArrayValues(['a'], ['a', 'b', 'c']).should.be.eql(['b', 'c'])52    })53    it('returns empty array on missing params', function() {54      utils.addedArrayValues(['a']).should.be.eql([])...

compare_objects.js

Source:compare_objects.js

1// YOUR CODE BELOW2function compareObjects(object1, object2){3    const object1Keys = Object.keys(object1)4    const object2Keys = Object.keys(object2)5    6    console.log(object1Keys, object2Keys)7    8    // if the lengths don't match, we have to return false :)9    if (object1Keys.length !== object2Keys.length){10      return false11    }12    13    // if we get to this part of our function14    // in other words, if we don't end up 15    // returning false above, what do we know for sure?16    for (let i = 0; i < object1Keys.length; i++){17      // we need a way of comparing BOTH the keys and the values at that particular key18      // if either of those conditions doesn't produce a strict equality, we should return false19      const currentKey1 = object1Keys[i]20      const currentKey2 = object2Keys[i]21     22      // first, check keys equality23      if (currentKey1 !== currentKey2){24        return false25      }26      27      // second, check values equality28      if (object1[currentKey1] !== object2[currentKey2]){29        return false30      }31    }32    33    return true34  }35  36  describe('compareObjects', () => {37  38    it('is a function', () => {39      expect(typeof compareObjects).toEqual('function');40    });41  42    it('returns a boolean', () => {43      let returnedValue = compareObjects({}, {});44      expect(typeof returnedValue).toEqual('boolean');45    });46  47    it('returns true if both objects have identical key/value pairs', () => {48      let returnedValue = compareObjects({a: 1, b: 2}, {a: 1, b: 2});49      expect(returnedValue).toEqual(true);50    });51  52    it('returns false if the objects have different keys', () => {53      let returnedValue = compareObjects({a: 1, b: 2}, {a: 1, c: 2});54      expect(returnedValue).toEqual(false);55    });56  57    it('returns false if the objects have different values', () => {58      let returnedValue = compareObjects({a: 1, b: 2}, {a: 1, b: 3});59      expect(returnedValue).toEqual(false);60    });61  62    it('returns false if the first object has an extra key/value pair', () => {63      let returnedValue = compareObjects({a: 1, b: 2}, {a: 1});64      expect(returnedValue).toEqual(false);65    });66  67    it('returns false if the second object has an extra key/value pair', () => {68      let returnedValue = compareObjects({a: 1}, {a: 1, b: 2});69      expect(returnedValue).toEqual(false);70    });71  72  });
...

index.js

Source:index.js

...17  age: 17,18};19// input: obj, obj20// output: boolean21// function compareObjects(obj1, obj2) {22//   return JSON.stringify(obj1) === JSON.stringify(obj2);23// }24// console.log(compareObjects(obj1, obj2));25//function compareObjects(obj1, obj4) {26//  return Object.entries(obj1).toString() === Object.entries(obj4).toString();27//}28//console.log(compareObjects(obj1, obj4));29// compareObjects(obj1, obj2); // ==> false30// compareObjects(obj2, obj3); // ==> false31// compareObjects(obj1, obj4); // ==> true32// Object.entries(k1).toString() === Object.entries(k2).toString();33// examples34const obj1 = {35  name: 'Tom',36  age: 17,37};38const obj2 = {39  name: 'Bob',40  age: 17,41};42const obj3 = {43  name: 'Bob',44  age: 17,45  student: false,46};47const obj4 = {48  name: 'Tom',49  age: 17,50};51// option 152function compareObjects(obj1, obj2) {53  const keys1 = Object.keys(obj1);54  const keys2 = Object.keys(obj2);55  if (keys1.length !== keys2.length) {56    return false;57  }58  for (let index = 0; index < keys1.length; index += 1) {59    const key = keys1[index];60    // const key2 = keys2[index];61    const value1 = obj1[key];62    const value2 = obj2[key];63    if (value1 !== value2) {64      return false;65    }66  }67}68console.log(compareObjects(obj1, obj2));69console.log(compareObjects(obj3, obj4));70console.log(compareObjects(obj1, obj3));71console.log(compareObjects(obj3, obj2));72// examples73const obj1 = {74  name: 'Tom',75  age: 17,76};77const obj2 = {78  name: 'Bob',79  age: 17,80};81const obj3 = {82  name: 'Bob',83  age: 17,84  student: false,85};86const obj4 = {87  name: 'Tom',88  age: 17,89};90// option 1 good//91function compareObjects(obj1, obj2) {92  const keys1 = Object.keys(obj1);93  const keys2 = Object.keys(obj2);94  if (keys1.length !== keys2.length) {95    return false;96  }97  return !keys1.some((key) => obj1[key] !== obj2[key]);98}99console.log(compareObjects(obj1, obj2));100console.log(compareObjects(obj3, obj4));101console.log(compareObjects(obj1, obj3));...

compareObjects.js

Source:compareObjects.js

...7	What do you think the output will be? You might assume `true`. It is, however, false. This isn't a mistake, its intentional. Every object is unique from every other object. The usefulness of this will become clear over time. But, it does make it difficult to know if objects contain the same data.8	9	Right now you're going to write a function that determines if two objects contain the same data.10	11	    compareObjects({ name: 'giselle' }, { name: 'zeke' })12	    // -> false13	14	    compareObjects({ name: 'nick' }, { name: 'nick' })15	    // -> true16	17	In order for the function to return true, ALL the properties that exist in object 1 must exist and be equal to those in object 2. Similarly, ALL the properties in object 2 must exist and be equal to those in object 1.18*/19// Version 1: the unoptimzed way 20function compareObjects(obj1, obj2) {21	for(var prop in obj1) {22		if(!obj2.hasOwnProperty(prop) || obj1[prop] !== obj2[prop]) { 23			return false;24		}25	}26	for(var prop2 in obj2) {27		if(!obj1.hasOwnProperty(prop2) || obj1[prop2] !== obj2[prop2]) {28			return false; 29		}30	}31	return true; 32}33console.log(compareObjects({ name: 'giselle' }, { name: 'nick'})); // false 34console.log(compareObjects({ name: 'giselle' }, { name: 'giselle'})); // true 35console.log(compareObjects({ name: 'giselle' }, { name: 'giselle', age: 25})); // false;  36// Version 2: using a helper function37function compare(obj1, obj2) {38	for(var prop in obj1) {39		if(!obj1.hasOwnProperty(prop) || obj1[prop] !== obj2[prop]) { 40		return false; 41		}42	}43	return true; 44}45function compareObjects(obj1, obj2) {46	return compare(obj1, obj2) && compare(obj2, obj1); 47}48console.log(compareObjects({ name: 'giselle' }, { name: 'nick'})); // false 49console.log(compareObjects({ name: 'giselle' }, { name: 'giselle'})); // true ...

compare-objects.spec.js

Source:compare-objects.spec.js

2  it('is a function', () => {3    expect(typeof compareObjects).toEqual('function');4  });5  it('returns a boolean', () => {6    let returnedValue = compareObjects({}, {});7    expect(typeof returnedValue).toEqual('boolean');8  });9  it('returns true if both objects have identical key/value pairs', () => {10    let returnedValue = compareObjects({a: 1, b: 2}, {a: 1, b: 2});11    expect(returnedValue).toEqual(true);12  });13  it('returns false if the objects have different keys', () => {14    let returnedValue = compareObjects({a: 1, b: 2}, {a: 1, c: 2});15    expect(returnedValue).toEqual(false);16  });17  it('returns false if the objects have different values', () => {18    let returnedValue = compareObjects({a: 1, b: 2}, {a: 1, b: 3});19    expect(returnedValue).toEqual(false);20  });21  it('returns false if the first object has an extra key/value pair', () => {22    let returnedValue = compareObjects({a: 1, b: 2}, {a: 1});23    expect(returnedValue).toEqual(false);24  });25  it('returns false if the second object has an extra key/value pair', () => {26    let returnedValue = compareObjects({a: 1}, {a: 1, b: 2});27    expect(returnedValue).toEqual(false);28  });...

compareObjects.spec.js

Source:compareObjects.spec.js

...15    def: 456,16    xyz: 234, // DIFFERENT !!17  };18  it('should compare equal objects', () => {19    expect(compareObjects(obj1, obj2)).toEqual(true);20    expect(compareObjects(obj2, obj1)).toEqual(true);21  });22  it('should compare unequal objects', () => {23    expect(compareObjects(obj1, obj3)).toEqual(false);24    expect(compareObjects(obj2, obj3)).toEqual(false);25    expect(compareObjects(obj3, obj1)).toEqual(false);26    expect(compareObjects(obj3, obj2)).toEqual(false);27  });...

Jest Testing Tutorial

LambdaTest’s Jest Testing Tutorial covers step-by-step guides around Jest with code examples to help you be proficient with the Jest framework. The Jest tutorial has chapters to help you learn right from the basics of Jest framework to code-based tutorials around testing react apps with Jest, perform snapshot testing, import ES modules and more.

Chapters

What is Jest Framework
Advantages of Jest - Jest has 3,898,000 GitHub repositories, as mentioned on its official website. Learn what makes Jest special and why Jest has gained popularity among the testing and developer community.
Jest Installation - All the prerequisites and set up steps needed to help you start Jest automation testing.
Using Jest with NodeJS Project - Learn how to leverage Jest framework to automate testing using a NodeJS Project.
Writing First Test for Jest Framework - Get started with code-based tutorial to help you write and execute your first Jest framework testing script.
Jest Vocabulary - Learn the industry renowned and official jargons of the Jest framework by digging deep into the Jest vocabulary.
Unit Testing with Jest - Step-by-step tutorial to help you execute unit testing with Jest framework.
Jest Basics - Learn about the most pivotal and basic features which makes Jest special.
Jest Parameterized Tests - Avoid code duplication and fasten automation testing with Jest using parameterized tests. Parameterization allows you to trigger the same test scenario over different test configurations by incorporating parameters.
Jest Matchers - Enforce assertions better with the help of matchers. Matchers help you compare the actual output with the expected one. Here is an example to see if the object is acquired from the correct class or not. -

|it('check_object_of_Car', () => { expect(newCar()).toBeInstanceOf(Car); });| | :- |

Jest Hooks: Setup and Teardown - Learn how to set up conditions which needs to be followed by the test execution and incorporate a tear down function to free resources after the execution is complete.
Jest Code Coverage - Unsure there is no code left unchecked in your application. Jest gives a specific flag called --coverage to help you generate code coverage.
HTML Report Generation - Learn how to create a comprehensive HTML report based on your Jest test execution.
Testing React app using Jest Framework - Learn how to test your react web-application with Jest framework in this detailed Jest tutorial.
Test using LambdaTest cloud Selenium Grid - Run your Jest testing script over LambdaTest cloud-based platform and leverage parallel testing to help trim down your test execution time.
Snapshot Testing for React Front Ends - Capture screenshots of your react based web-application and compare them automatically for visual anomalies with the help of Jest tutorial.
Bonus: Import ES modules with Jest - ES modules are also known as ECMAScript modules. Learn how to best use them by importing in your Jest testing scripts.
Jest vs Mocha vs Jasmine - Learn the key differences between the most popular JavaScript-based testing frameworks i.e. Jest, Mocha, and Jasmine.
Jest FAQs(Frequently Asked Questions) - Explore the most commonly asked questions around Jest framework, with their answers.