Leveraging the power of ng-describe for comprehensive end-to-end testing using protractor

Recently, I stumbled upon a fantastic ng-describe package that simplifies the process of writing unit tests for AngularJS applications. It eliminates the need to remember and write all the boilerplate code required to load, inject, mock, or spy.

Has anyone experimented with using ng-describe alongside protractor? Is it a practical approach and are there benefits to be gained from it?


One feature that stood out to me is how effortlessly you can mock HTTP responses:

ngDescribe({
  inject: '$http', // for making test calls
  http: {
    get: {
      '/my/url': 42, // status 200, data 42
      '/my/other/url': [202, 42], // status 202, data 42,
      '/my/smart/url': function (method, url, data, headers) {
        return [500, 'something is wrong'];
      } // status 500, data "something is wrong"
    }, 
    post: {
      // same format as GET
    }
  },
  tests: function (deps) {
    it('responds', function (done) {
      deps.$http.get('/my/other/url')
        .then(function (response) {
          // response.status = 202
          // response.data = 42
          done();
        });
      http.flush();
    });
  }
});

Mocking HTTP responses can enhance end-to-end coverage and assess how the UI responds to specific scenarios and handles errors. Currently, we use protractor-http-mock for this purpose, although there are alternative solutions available which may not be as straightforward as with ng-describe.

Answer №1

It is important to note that Protractor primary function is for end-to-end testing with Selenium Webdriver, requiring a backend connection (even if it's a mock backend). According to the creator of Protractor, application code runs separately from test code, making it difficult to access the $http service easily.

When mocking backend calls, you are essentially deviating from true end-to-end testing, moving closer to unit testing. In this case, utilizing jQuery instead of the Protractor API and running tests through Karma may be more suitable. Tools like ng-describe and $httpBackend are better suited for unit testing purposes.

If you prefer to stick with your current approach, there are suggestions in the comments of this Protractor issue for potential solutions. However, ng-describe may not be as helpful in this scenario.

I hope this explanation addresses your concerns.

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

When running the `mocha` command with `npm test`, no specific

Could use some help: I've encountered an issue while running a unit-testing command. The error messages are not being printed when there are errors, making debugging quite challenging. Here is the command I executed: and here's the package.json ...

Generate a random 8-digit number with a specific range in JavaScript

I want to generate a random 8-digit number ranging from 0 to 7, excluding the numbers 8 and 9. Here is what I have tried so far, but I'm unable to exclude the numbers 8 and 9: var b = Math.floor(Math.random()*90000000) + 10000000; console.log(b) Is ...

Guide on retrieving a file through an HTTP request with restricted cross-origin access restrictions

Having some issues with downloading files from specific links, such as . My goal is to automate the download process for these redirected files. The challenge I'm facing is that trying to access the link directly through a web browser just gives me a ...

Retrieve data from a JSON file using Ajax and jQuery

I have a JSon file that contains information about some matches: [{ "id": "2719986", "orario": "00:30", "casa": "Bahia", "trasferta": "Internacional" } , { "id": "2719991", "orario": "02:00", "casa": "Palmeiras", "trasferta": "Botafogo RJ" }] I'v ...

Difficulty in displaying accurate visuals for Albers US Choropleth Map using d3.js and React

I'm currently troubleshooting my code as I'm only seeing a large square of one color when I attempt to create a colorScale for each element with the class "county" on this Albers US map. The desired outcome is something similar to this project: ...

Updating the status of a 2D array with N elements in React: A step-by-step guide

Before I dive into the topic, I must acknowledge that I have come across questions similar to this one before but was unable to find a solution on my own. Updating React state as a 2d array? Let's imagine this as my state object state = { graph ...

steps for retrieving final outcome from forkJoin

I am currently working with an array of userIds, such as: ['jd', 'abc']. My goal is to loop through these userIds and retrieve full names using an API. Ultimately, I aim to transform the initial array into [ {userId: 'jd', nam ...

Is it optimal to have nested promises for an asynchronous file read operation within a for loop in Node.js?

The following Node.js function requires: an object named shop containing a regular expression an array of filenames This function reads each csv file listed in the array, tests a cell in the first row with the provided regular expression, and returns a n ...

What is the best way to target a specific item in a list using JavaScript in order to modify its appearance?

How can I modify the appearance of a specific li element when it is clicked? ...

Unexpected outcome from the zero-fill operator (>>>) in Javascript's right shift operation

Initially, is (-1 >>> 0) === (2**32 - 1) possibly due to extending the number with a zero on the left, transforming it into a 33-bit number? However, why does (-1 >>> 32) === (2**32 - 1) as well? I had anticipated that after shifting the ...

Angular - The answer to intricate router parameters management with hyperlink addresses

I have a unique feature in my card design where I want users to be able to open the content in a new tab by using their mouse's middle button. To achieve this, I added a link <a> with an automatically generated href for each card. However, there ...

Utilize the split functionality only when the character you want to split by is found in

Consider the following situation: I have 6 string variables that contain special characters. I stored these 6 strings in an array like this: arr=[str1,str2,str3...); arr=escape(arr); due to the presence of special characters in some string variables. ...

Extending a type by adding properties from separate files using TypeScript

I am faced with a situation where I have a file containing either a type or interface variable (all of which are exported), and I need to add new properties to this variable from different files without using extends. Essentially, making changes to the sam ...

Include image hover text without using HTML

I am looking to add a hover effect to some images using CSS and JS since I cannot directly edit the HTML file. The goal is to have centered text pop out when hovering over certain images. I know the div class of the image but unfortunately, I cannot add te ...

Unable to prevent ordered lists from overlapping with other content I attempt to place beneath them in HTML

function filterImages() { let input = document.getElementById('searchbar').value; input = input.toLowerCase(); let images = document.getElementsByClassName('gallery'); for (let i = 0; i < images.length; i++) { ...

Creating a webpage using webkit technology

As someone new to web development, I am eager to create a website that is user-friendly on both desktops and mobile devices. Recently, I stumbled upon a site with impeccable design and functionality using what appeared to be "screen webkit". I'm curi ...

Exploring the depths of JSON using @attributes and @association in the realm of JavaScript and AngularJS

Currently, I am working on a project that involves utilizing an API for data retrieval, updates, and deletions. The API in question is the prestashop API. While I have managed to retrieve data and update certain items successfully, I encountered an issue. ...

Guide on transforming observable<User> to Observable<boolean> in Angular 4

As a newcomer in Angular and Mean Stack, I need help implementing the canActivate() method to restrict admin routes. In my service file, the checkAdmin method returns an observable of type "User", but the canActivate method's return type is an observa ...

Is it possible to compare two charts in Chart.js in a way that avoids the issue of small values appearing as large as big values?

I am currently working on a production tracking page that features multiple charts. I want to avoid inconsistencies in tracking at first glance. Is there a way to achieve this using chart.js? If not, what would be the best approach to address this issue? ...

What is the best approach to developing Vue components with unique templates while maintaining the same functionality without duplicating code?

I am working on a project to develop a custom and versatile datatable component. My goal is to be able to adjust the appearance of the datatable on each page, while maintaining consistent functionality. I want to pass data rows into the component and have ...