Examining whether an ajax call was not initiated within an Angular application

Question

Examining whether an ajax call was not initiated within an Angular application

Is there a way to verify that an ajax request has not been made using Angular's $httpBackend? I attempted to use verifyNoOutstandingRequest() but it doesn't seem to be triggering test failures in version 1.1.5.

Here is more information about the scenario:

In my database module, I am utilizing ngResource to connect to the server-side database. I have configured it so that the GET all operation is cached client-side, meaning only the initial call to my getTable('tableName') method should trigger an ajax request. Therefore, the objective of the test is to confirm that the first call results in an ajax request, while subsequent calls do not.

javascript ajax unit-testing angularjs

Answer 1

Answer №1

Ensuring that your test fails when an unexpected request is made is simple – just remember not to define the expect method for it. Angular will automatically generate an error if a request is received that was not anticipated.

For every request, you must include an excpect method in your code. This means creating one expect statement for the initial call to getTable which initiates the request. If any additional requests are made afterwards without an appropriate expect, Angular will trigger an error causing your test to fail.

The structure of your test should resemble the following:

$httpBackend.expectGET("request_url");
getTable("tableName");
$httpBackend.flush();
//No error as the request was expected
getTable("tableName"); //An error will be thrown if an unplanned request is attempted

Answer 2

Ensuring that your test fails when an unexpected request is made is simple – just remember not to define the expect method for it. Angular will automatically generate an error if a request is received that was not anticipated.

For every request, you must include an excpect method in your code. This means creating one expect statement for the initial call to getTable which initiates the request. If any additional requests are made afterwards without an appropriate expect, Angular will trigger an error causing your test to fail.

The structure of your test should resemble the following:

$httpBackend.expectGET("request_url");
getTable("tableName");
$httpBackend.flush();
//No error as the request was expected
getTable("tableName"); //An error will be thrown if an unplanned request is attempted

Examining whether an ajax call was not initiated within an Angular application

Here is more information about the scenario:

Answer №1

Similar questions

Parsing an Object in Java

What methods can I employ to restrict access to specific controllers within my MVC3 application?

I'm attempting to install the "firebase" package using npm, but I keep encountering a python-related error message during the installation process

Retrieve the parent document for every item within a Firebase collection group

Is the API providing a response in the form of an HTML document

Enabling the submit button only when text is entered in the text fields using jQuery

It is not possible to change the maximum height of a Popover in Material UI

Creating expandable card components with React and CSS using accordion functionality

Different ways to dynamically change tailwind colors during execution

Troubleshooting problems with dates in jQuery AJAX

What are alternative methods for Controller communication besides Broadcast/Emit?

Is it possible to integrate a JavaScript library into the Vue prototype?

JavaScript finding items in an array

Access to the Express Node.js server is restricted to the machine that is currently hosting the server

Converting Byte strings to Byte arrays in Node.js using JavaScript

Leveraging JavaScript variables conditionally within a JSON object

Attempting to iterate through and retrieve the names listed in the table

Ways to pass Angular variables to JavaScript while utilizing the $scope() function

Transform a group of objects in Typescript into a new object with a modified structure

Sorting a list based on user-defined criteria in Ionic 3