Jasmine encountered an error while trying to compare the same string: 'Expected the values to match.'

I'm encountering an error message, despite verifying that the strings are identical:

Expected { $$state : { status : 1, value : { customerNumber : 'customerNumber', name : 'name', userId : 'buId', customerType : 'type', address : 'displayAddress' } } } 
to equal { $$state : { status : 1, value : { customerNumber : 'customerNumber', name : 'name', userId : 'buId', customerType : 'type', address : 'displayAddress' } } }.
Error: Expected { $$state : { status : 1, value : { customerNumber : 'customerNumber', name : 'name', userId : 'buId', customerType : 'type', address : 'displayAddress' } } } to equal { $$state : { status : 1, value : { customerNumber : 'customerNumber', name : 'name', userId : 'buId', customerType : 'type', address : 'displayAddress' } } }.
        at C:/customerServiceSpec.js:70

The only discrepancy I can identify is a period at the end, though I suspect Jasmine adds it in the response. Here's my testing code snippet:

describe('CustomerService', () => {
    var mockUserSession: any = {};
    var testService any = {};
    var $q: ng.IQService;
    var createCustomerDetailsService;
    var customerDetailsService;
    var createResolvedPromise;
    var createRejectedPromise;
    var resolvePromises;

    var testResponse = {
        customers: {
            displayCustomerNumber: 'customerNumber',
            name: 'name',
            id: 'id',
            type: 'type',
            displayAddress: 'displayAddress'
        }
    };

    var serviceResponse={
        $$state: {
            status: 1,
            value: {
                customerNumber: 'customerNumber',
                name: 'name',
                id: 'id',
                customerType: 'type',
                address:'displayAddress'
            }
        }
    };

    var rootScope;

    beforeEach(() => {
        module('app.customer');

        inject(( _$q_, $injector) => {
            this.$q = _$q_;
            rootScope = $injector.get('$rootScope');

            createResolvedPromise = (result) => {
                return () => {
                    return this.$q.when(result);
                };
            };

            resolvePromises = () => {
                rootScope.$digest();
            };

            createCustomerDetailsService = () => {
                return new app.customer.CustomerService(
                    testService);
            };
        });

    });

    it('WILL search by customer ID and return a customers details', () => {
        var searchResponsePromise;

        testService.getCustomerDetails = jasmine.createSpy("getCustomerDetails").and.callFake(createResolvedPromise(testResponse));
        customerDetailsService = createCustomerDetailsService();
        searchResponsePromise = customerDetailsService.getCustomerDetails('12345678');
        resolvePromises();

        expect(searchResponsePromise).toEqual(serviceResponse);
    });
});

Below is the relevant excerpt from my service:

public getCustomerDetails(customerID:string): ng.IPromise<ICustomerDetails> {
    return this.testService.getCustomerDetails(customerID).then((customerResponse:ICustomerResult) => {

        var customer = customerResponse.customers;

        var customerDetailsResult:ICustomerDetails = {
            customerNumber: customer.displayCustomerNumber,
            name: customer.name,
            userId: customer.buId,
            customerType: customer.type,
            address: customer.displayAddress
        };

        return customerDetailsResult;
    });
}

Your assistance is greatly appreciated.

Answer №1

The reason for this occurrence is that JSON objects are distinct instances of objects, even though they hold identical data. To resolve this issue, you should implement the following:

expect(angular.equals(searchResponsePromise, serviceResponse)).toBe(true);

Answer №2

If you're interested in how to compare objects using AngularJS and Jasmine, check out this helpful resource on AngularJS + Jasmine: Comparing objects. The recommended approach is to utilize the expect(...).toEqual(...) method instead of expect(...).toBe(...). By using toEqual(), a deep comparison can be executed.

One of the key advantages of using toEqual() over the alternative method is that it provides more informative error messages when an assertion fails. For instance, if you use toBe(true) and it fails, the error message might only state 'expected false to be true', which may not be sufficient to identify and address the issue.

When using toEqual(), the deep comparison results in an assertion error that includes both the expected and actual objects serialized as strings. This feature greatly enhances the debugging process and makes it easier to rectify any discrepancies. :)

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

Changing the child component input in Angular's deep cloning cannot be reflected on the user interface

I am currently working on a parent-child component setup. Within the parent component, I have a BehaviourSubject<SomeObject[]>(). export interface SomeObject(){ field: number; ... editable: boolean } Before passing the object to the child component, ...

The issue with ngFileUpload causing empty file posts on Safari

Currently, I am utilizing ngFileUpload to transmit images to the Cloudinary service. My application is constructed on Ionic and is meant to be functional on both iOS and Android platforms. The code snippet below showcases my image uploading process: .se ...

Tips for identifying the most effective element locator in the DOM with Playwright

Currently, I am in the process of incorporating Playwright tests for a website that supports multiple locales. The majority of the page content is dynamically generated from CMS content (Contentful). I am hesitant about using hardcoded text locators like ...

Encountering the error "Missing property '$$typeof' when trying to extend next/link in Next.js using TypeScript"

I have the following code snippet in my project: import NextLink from 'next/link' import ExternalLink from './External' type PropsType = typeof NextLink & { href: string children: React.ReactNode } export default function Link ...

Creating a user-friendly interface for an array of objects, complete with an included array containing those same objects

I have an array that I want to iterate through. It contains a single object and an array of objects. How can I create an interface for this structure? What is the appropriate declaration to replace any[]? Here is the code: export const initialPhotoProps: ...

The challenge of accessing controllerAs variables/objects in AngularJS custom directives

After deciding to refactor my code and move DOM manipulation and functions into directives instead of controllers, I encountered an issue with accessing variables/objects defined using the controllerAs 'this' syntax. Despite trying to use bindToC ...

The CSS for the UI Grid is malfunctioning

I have been working on creating a grid using UI Grid (recent version of ngGrid) within my current project. However, I am facing some issues with the display. The icons like angle down and row selected icon are not showing up correctly when I include the CS ...

AngularJs: uncomplicated rating system

Is there a way to increase a variable in an ng-repeat loop when clicked? <li class="item" ng-repeat="post in posts"> ... ... <button ng-click="incrementLike(post.like_count)">Like {{post.like_count}}</button> ... ... </li> $scope ...

Adjust the specific data type to match its relevant category

Is there a method to alter literal types in TypeScript, for instance. type T1 = ""; type T2 = 1 I am interested in obtaining string for T1 and number for T2. Regarding collections, I am unsure, but I assume it would involve applying it to the generic typ ...

Notify programmers about the potential risks associated with utilizing certain third-party components

Incorporating a 3rd party library into our codebase involves utilizing its components directly, although some are enclosed within internally created components. Is there a method available to alert developers when they try to use one of the wrapped compone ...

Is it possible to remove or delete a module in AngularJS?

Is there a way to clear the memory of a previous module in my app that I won't be using after routing to a different location? For instance, let's say my main Angular module is "WebApp" which has dependencies on modules like "catalogApp", "Payme ...

Component binding causing issues with onChanges functionality

There is a specific component that I am working on: @Component('Umbrella', { selector: 'attachment-list', templateUrl: '/AttachmentListComponent/AttachmentList.html', bindings: { mediaIds: '<' ...

Creating a progressive prototype chain in TypeScript: A step-by-step guide

With JavaScript, it is possible to create a "derived class" whose "base class" is dynamic using code like the following: function NewBaseClass(sF) { function DynamicBaseClass(iF) { this.instanceField = iF; } // EDIT: oops, this is not really static i ...

Leveraging various techniques within a single controller in AngularJS

I am seeking assistance and advice on a coding issue I am facing. I am attempting to use two methods in one controller. The first method is to display selected rooms, while the second method is to display selected pax. However, only the first method seems ...

Redirecting in AngularJS after a successful login操作

Is there a way to redirect users back to the original page after they login? For example, if a user is on a post like www.example.com/post/435 and needs to log in to "like/comment" on the post, how can I automatically redirect them back to that specific po ...

Creating multipart/form-data with varying Content-Types for each part using JavaScript (or Angular)

Apologies for the confusion, please refer to my update below I have a requirement to link my AngularJS Project with an existing RESTful API. This API uses POST requests that involve uploading a file and submitting form data in a request. However, one of t ...

The type '{ children: Element; }' cannot be assigned to the type 'IntrinsicAttributes & ReactNode'

Encountered this error: Type '{ children: Element; }' is not assignable to type 'IntrinsicAttributes & ReactNode'. export const withAppProvider = (Component: AppComponent) => { return function WrapperComponent(props: any) { ...

Transform a date string into a date entity

Collecting the user's input for the date and saving it as a string variable. The format of the value is Fri Aug 27 2021 00:00:00 GMT+0530 (India Standard Time) My goal is to convert this string back into a new Date() object in order to make additiona ...

Encountering difficulties with installing TypeScript

I am facing an issue while trying to install TypeScript on Windows 10 using node version 6.3.0 and npm version 3.10.3. The error message I'm getting is as follows: 33 warning Windows_NT 10.0.10586 34 warning argv "C:\\Program Files\&bs ...

No content returned by Angular Server

I have implemented a factory in angular 1.6 to make GET requests to a Rails 5 server. The factory contains an $http call like this: $http({method: 'GET', url: urlString, params: dataToSend}) .then(function successCallback(response) { ...