Mocha聽vs聽Protractor

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Mocha

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Mocha vs Protractor: What are the differences?

Developers describe Mocha as "Simple, flexible, fun javascript test framework for node.js & the browser". Mocha is a feature-rich JavaScript test framework running on node.js and the browser, making asynchronous testing simple and fun. Mocha tests run serially, allowing for flexible and accurate reporting, while mapping uncaught exceptions to the correct test cases. On the other hand, Protractor is detailed as "End-to-end test framework for Angular and AngularJS applications". Protractor is an end-to-end test framework for Angular and AngularJS applications. Protractor runs tests against your application running in a real browser, interacting with it as a user would.

Mocha and Protractor can be categorized as "Javascript Testing Framework" tools.

"Open source" is the primary reason why developers consider Mocha over the competitors, whereas "Quick tests implementation" was stated as the key factor in picking Protractor.

Mocha and Protractor are both open source tools. Mocha with 18.1K GitHub stars and 2.44K forks on GitHub appears to be more popular than Protractor with 8.24K GitHub stars and 2.23K GitHub forks.

According to the StackShare community, Mocha has a broader approval, being mentioned in 399 company stacks & 272 developers stacks; compared to Protractor, which is listed in 24 company stacks and 22 developer stacks.

Advice on Mocha and Protractor
Yildiz Dila
testmanager/automation tester at medicalservice | 5 upvotes 路 109K views
Needs advice
on
Protractor
and
Cypress

In the company I will be building test automation framework and my new company develops apps mainly using AngularJS/TypeScript. I was planning to build Protractor-Jasmine framework but a friend of mine told me about Cypress and heard that its users are very satisfied with it. I am trying to understand the capabilities of Cypress and as the final goal to differentiate these two tools. Can anyone advice me on this in a nutshell pls...

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Replies (2)
Kevin Emery
QE Systems Engineer at Discovery, Inc. | 3 upvotes 路 32K views

I've used both Protractor and Cypress extensively. Cypress is the easier and more reliable tool, whereas Protractor is the more powerful tool. Your choice of tool should depend on your specific testing needs. Here are some advantages and disadvantages of each tool:

Cypress advantages:

  • Faster

  • More reliable (tends to throw fewer intermittent false failures)

  • Easier to read code (handles promises gracefully)

Cypress disadvantages:

  • Cannot switch between browser tabs

  • Cannot switch to iFrames

  • Cannot specify clicks or keypresses explicitly as if a real user was interacting

  • Cannot move the mouse to specific co-ordinates

  • Sometimes has trouble switching between different top-level domains, so not good for testing external links

  • Cypress is a newer tool with less extensive documentation and less community support

Protractor advantages:

  • More powerful because it is Selenium-based - it can switch between tabs, it can handle external links to other domains, it can handle iFrames, simulate keypresses and clicks, and move the mouse to specific co-ordinates within the browser.

  • More extensive community support and documentation

Protractor disadvantages:

  • Slower and more brittle - in general there is a higher likelihood of cryptic and/or intermittent errors which may cause your tests to fail even though there is nothing wrong with your application

  • For highly experienced automation engineers, the fundamental "brittle" nature of Selenium can be worked around - it can be reliable but only if you really know what you are doing

  • Less graceful handling of promises - relies on async/await or .then to manage the order of execution. Therefore it is a bit harder to read the code.

  • Harder to set up, and the method of setup impacts its reliability. For example, a hub/node configuration where the selenium jar is on a different physical machine than the browser under test will cause unreliability in your tests. Not everyone knows about this type of thing, so it's common to find Selenium frameworks that are set up poorly.

It's probably better to use Cypress if

  • you're at a smaller company and have a close relationship with developers who can help write hooks or stubs in their code to assist your testing

  • you don't need to do things like switch between tabs or test links to external top-level domains

It's probably better to use Protractor if

  • You might need to switch between tabs or test external links to other domains within the scope of your framework

  • You want to use a more accurate simulation of how a real user interacts with a browser (i.e. click at this location, type these keys)

  • You're at a company where you won't have any support from developers in writing hooks or stubs to make their code more testable in a less powerful framework like Cypress

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Jian Wang
Web Engineer at sentaca | 1 upvotes 路 60.9K views
Recommends

Please try Handow, the e2e tool basing on Puppeteer.

Gherkin syntax compatible

Chrome/Chromium orentied, driven by Puppeteer engine

Complete JavaScript programming

Create test suites rapidly without coding (or a little bit), basing on built-in steps library

Schedule test with plans and arrange stories with sequential stages

Fast running, execute story groups in parallel by multi-workers

Built-in single page report render

Cover page view, REST API and cookies test

https://github.com/newlifewj/handow

http://demo.shm.handow.org/reports

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Decisions about Mocha and Protractor

We use Mocha for our FDA verification testing. It's integrated into Meteor, our upstream web application framework. We like how battle tested it is, its' syntax, its' options of reporters, and countless other features. Most everybody can agree on mocha, and that gets us half-way through our FDA verification and validation (V&V) testing strategy.

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Pros of Mocha
Pros of Protractor
  • 136
    Open source
  • 100
    Simple
  • 81
    Promise support
  • 48
    Flexible
  • 28
    Easy to add support for Generators
  • 12
    For browser and server testing
  • 7
    Curstom assertion libraries
  • 4
    Works with Karma
  • 3
    No other better tools
  • 1
    Simple integration testing
  • 1
    Default reporter is nice, clean, and itemized
  • 1
    Simple setup
  • 1
    Works with saucelabs
  • 1
    Lots of tutorials and help online
  • 1
    Works with BrowserStack
  • 7
    Easy setup
  • 6
    Quick tests implementation
  • 3
    Promise support
  • 3
    Open source
  • 2
    Flexible

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Cons of Mocha
Cons of Protractor
  • 3
    Cannot test a promisified functions without assertion
  • 1
    Not as many reporter options as Jest
  • 1
    No assertion count in results
  • 3
    Limited

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What is Mocha?

Mocha is a feature-rich JavaScript test framework running on node.js and the browser, making asynchronous testing simple and fun. Mocha tests run serially, allowing for flexible and accurate reporting, while mapping uncaught exceptions to the correct test cases.

What is Protractor?

Protractor is an end-to-end test framework for Angular and AngularJS applications. Protractor runs tests against your application running in a real browser, interacting with it as a user would.

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What companies use Mocha?
What companies use Protractor?
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What tools integrate with Mocha?
What tools integrate with Protractor?

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What are some alternatives to Mocha and Protractor?
Jasmine
Jasmine is a Behavior Driven Development testing framework for JavaScript. It does not rely on browsers, DOM, or any JavaScript framework. Thus it's suited for websites, Node.js projects, or anywhere that JavaScript can run.
Jest
Jest provides you with multiple layers on top of Jasmine.
Chai
It is a BDD / TDD assertion library for node and the browser that can be delightfully paired with any javascript testing framework. It has several interfaces that allow the developer to choose the most comfortable. The chain-capable BDD styles provide an expressive language & readable style, while the TDD assert style provides a more classical feel.
Cypress
Cypress is a front end automated testing application created for the modern web. Cypress is built on a new architecture and runs in the same run-loop as the application being tested. As a result Cypress provides better, faster, and more reliable testing for anything that runs in a browser. Cypress works on any front-end framework or website.
SinonJS
It is a really helpful library when you want to unit test your code. It supports spies, stubs, and mocks. The library has cross browser support and also can run on the server using Node.js.
See all alternatives