Download Backbone.js Testing by Ryan Roemer PDF

By Ryan Roemer

If you dread the enterprise of checking out JavaScript and Backbone.js internet purposes, this ebook is your father or mother angel. In effortless phases and plenty of examples it takes you thru the total trying out state of affairs, introducing you to top perform and present techniques.


  • Create finished attempt infrastructures
  • Understand and make the most of sleek frontend checking out ideas and libraries
  • Use mocks, spies, and fakes to easily try out and become aware of complicated Backbone.js software behavior
  • Automate checks to run from the command line, shell, or essentially anywhere

In Detail

Frontend internet purposes are hovering in acceptance and the Backbone.js library is prime this cost with a modular, light-weight strategy for organizing JavaScript net functions. even as, checking out client-side JavaScript and Backbone.js courses continues to be a tough and tedious undertaking.

Backbone.js checking out brings brilliant practices and present innovations to the demanding situations of Backbone.js attempt improvement. The e-book introduces primary checking out thoughts, entire attempt infrastructure layout, and useful workouts to simply and systematically try out glossy JavaScript net applications.

The e-book progresses from Mocha attempt suites and Chai assertions to complicated attempt mocks and stubs with Sinon.JS. The considered necessary libraries and utilities are brought with in-depth examples and most sensible practices for integration together with your purposes. The booklet courses you thru the try making plans and implementation tactics in your software versions, perspectives, routers, and different Backbone.js components.

Backbone.js checking out delivers the instruments, examples, and advice to check your Backbone.js net functions completely, quick, and with confidence.

What you'll study from this book

  • Install and manage a try infrastructure for spine applications
  • Run, learn, and comprehend Mocha attempt reports
  • Tour the Chai statement library API with certain examples
  • Write attempt suites and specifications with the Mocha attempt framework
  • Fake software habit in checks utilizing Sinon.JS mocks, spies, and pretend servers


This e-book is full of step by step tutorials and directions in recipe structure that will help you create attempt infrastructures and progressively boost your Backbone.js software improvement and trying out skills.

Who this e-book is written for

If you're a JavaScript developer trying to create and enforce try aid in your Backbone.js purposes, then this e-book is perfect for you.

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Additional resources for Backbone.js Testing

Sample text

Then, the code is developed to match up with the unit test assertions. Partial integration tests take a higher-level view, piecing together the application and checking that the individual components add up to a functional whole. js application, a unit test might create a single model and test-only model methods. In contrast, a partial integration test might create a view with several subviews and a collection and verify that collection data changes modify the subview display. Other concepts that we will not explicitly cover in this book, but that are worth becoming familiar with and integrating into the overall development and testing process, include: • Full integration tests: Full integration tests incorporate the entire application (often seeded with known test data), exercise behavior as a user would through the frontend, and verify that the application responses propagate all the way from the backend to the user interface.

Js programs are commonly developed as single-page applications in which the entire HTML page source and JavaScript libraries are downloaded in a single page load. Router maintains the internal state of the application and manages the browser history. Routers provide client-side routing via URL hash fragments (#app-page) to allow different views to be linked to, bookmarked, and navigated like traditional web pages. In the chapters that follow, we will test these components separately and together, so it is important to ensure a solid grasp of the fundamentals.

To make the tests run asynchronously, we use the done test function parameter, which delays test completion until done() is called. Asynchronous tests will be explored in more detail in Chapter 3, Test Assertions, Specs, and Suites. The first test has no delay before the test assertion and done() callback, the second adds 40 milliseconds of latency, the third adds 100 milliseconds, and the final test adds 2001 milliseconds. These delays will expose different timing results under the Mocha default configuration that reports a slow test at 75 milliseconds, a medium test at one half the slow threshold, and a failure for tests taking longer than 2 seconds.

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