- They are being performed on matched elements.Expect verifies if a certain value is as expected to be.As we can see detox covers a lot of possible user interactions that can be automated.Make our tests moreÂ readableTo be honest, we can do much better.First letâs get rid of the duplication for matchers…
- Automate the process and land on the moonÂ đOnce we reached a certain amount of tests, we thought it could be nice to automate the process and think in terms of âcontinuous testingâ.
- Thatâs why we decided to run the end-to-end test on our build server.Every new pull request that comes in, triggers unit tests with Jest on CircleCI and now also our end-to-end tests on Bitrise (our build server).
- This is mostly due to the Detox build scripts.AlternativesWe also considered others libraries such as:Appium which is a cross platform test library where tests can be written in many languages (node, ruby, java,Â âŚ ).
- Hence, our choice of using Detox.ConclusionIn this article we saw how to handle Detox and its API, how to automate everything with Bitrise (or any CI that can runs an IOS Simulator).
When we started writing our React-Native app at Home, testing was something we took seriously from day one. While it was easy to setup a proper unit-tests workflow with Jest and Typescript, we figure…
Continue reading “How to do end-to-end testing on React Native with Detox”
- Well, it’s safe to use code from Facebook’s React.js library in open source projects.
- At issue is a license Facebook created by taking an existing open source license, modifying it with a short patent caveat, then calling it the BSD+Patents license.
- The issue was with the patent clause Facebook had added to the license, which states that anyone using the code, directly or indirectly, cannot take legal action against Facebook for any patent infringement involving any software without losing the right to use and distribute the code.
- The problem wasn’t with patent protections: Many open source licenses, including Apache, have patent clauses preventing users from suing over any patents the covered software might infringe, but Facebook’s license seeks to protect the company from infringement by any and all of its software.
- Then on Friday, Facebook’s engineering director, Adam Wolff, announced in a blog post, “Next week, we are going to relicense our open source projects React, Jest, Flow, and Immutable.js under the MIT license.
It’s safe to go back in the water again. Well, it’s safe to use code from Facebook’s React.js library in open source projects. The folks at the social site have done an about-face and will be changing React.js’s license to MIT, along with the licenses for Jest, Flow and Immutable.js. The announcement came exactly a month after we reported on a licensing brouhaha that had resulted in a standoff between Facebook and the Apache Foundation.
Continue reading “Facebook Relents on React.js License Issue via @InfoSecHotSpot”
- Developer Spotlight: Matt CainIn our latest installment of the Cosmic JS Developer Spotlight Series, we sat down with Matt Cain, a web developer who took a physics undergrad and spring-boarded into the world of Java, Rails and ultimately, programming language agnostic APIs.
- In addition to his day job of being a Creative Director and writing code, Matt is a Cosmic JS Contributor and responsible for several apps and blogs in our ecosystem.
- More recently, I was pretty satisfied with the Premium User Blog app I built for Cosmic JS.Talk a little bit more about your process for building apps, who they’re for, and how Cosmic JS has helped.
- Cosmic JS being essentially a simple to use, one-stop-shop for everything I need to deploy is a blessing.What are some technologies you are excited about that you are using today, or want to learn more about?I’m excited about using PWA’s and integrating bots in sites more.
- I’m very much looking foward to where AR goes.To learn how you can contribute apps, blogs and extensions to the Cosmic JS Community, contact us at email@example.com.
In our latest installment of the Cosmic JS Developer Spotlight Series, we sat down with Matt Cain, a web developer who took a physics undergrad and spring-boarded into the world of Java, Rails and…
Continue reading “Developer Spotlight: Matt Cain – Cosmic JS – Medium”
- In this article, I’ll talk you through the decisions I make when building React application: picking tools, structuring files, and breaking components up into smaller pieces.
- Once you’ve done that you can always import files relative to the directory:
Whilst this does tie your application code to Webpack, I think it’s a worthwhile trade-off because it makes your code much easier to follow and imports much easier to add, so this is a step I’ll take with all new projects.
- For example, we have a folder called that contains all components relating to the shopping cart view, and a folder called that contains code for listing things users can buy on a page.
- Following on from the previous rule, we stick to a convention of one React component file, and the component should always be the default export.
- Normally our React files look like so:
In the case that we have to wrap the component in order to connect it to a Redux data store, for example, the fully wrapped component becomes the default export:
You’ll notice that we still export the original component; this is really useful for testing where you can work with the “plain” component and not have to set up Redux in your unit tests.
I’ll talk you through the decisions I make when building React applications :picking tools, structuring files,and breaking components up into smaller pieces
Continue reading “Organize a Large React Application and Make It Scale”
- forEach()” will execute the same code on each element of an array.forEach() ExampleThis iterator will execute the same code on each element of an array, so in the example above we are going to go over each element in our array and print it on the console, the argument that you can see in parenthesis doesn’t matter in this case we are using “fruitItem” because is a good practice to have descriptives names.
- map() iterator but in this case we are creating a new array with the result, so we need to create the variable and inside the block have the condition, that in this case we are going to create a new array with all the numbers divided by 100.
Hello guys this is my second article here about front end and this time I am going to be talking about the different iterators that we have in EcmaScript6. The idea of this post is just show you some…
Continue reading “Iterators Using ES6 – Felipe Valdivia – Medium”
- Jenkins can speed up repetitive tasks that robots are much better performing and Docker simplifies spinning up VM’s for your application in a very simple and repeatable way.
- What I’m going to cover here is how to setup your Jenkins server in a Docker container and how to fix some of the limits of the Jenkins official image.
- While it is nice of Jenkins to offer an official docker image, you’ll quickly run into a few issues if you are doing anything even slightly other than compiling plain Java.
- For instance, Maven, the popular dependency management tool for Java, is not included in the Docker container.
- You’ve learned to create a Jenkins Docker-container that’s ready to run jobs for Java, Ruby and NodeJS projects.
Setup your Jenkins server in a Docker container and fix some of the limits of the official image I discovered so you can get up and building faster.
Continue reading “How to make Jenkins build NodeJS, Ruby, and Maven on Docker”
- We also want to let users slice and dice their data — functionality that is readily achieved using a brush.A sketch of a dashboard, showing a map, bar chart, and stacked area chart that display our data.From the sketch, you can easily imagine interaction possibilities and changes that you may want to see based on user activity; for instance, highlighting which elements in each chart correspond to elements in other charts, or giving more detail on a particular element based on a click.
- There are great books on React, such as React Quickly, so this will only scratch the surface, but just this chapter will get you to the point of a fully self-contained React data visualization application.Why React, why not X?React is obviously the best library ever made and if you like Angular, you’re dumb, bro (and don’t even get me started on Ember).
- And even if you hate application frameworks, you can use most of the code in this chapter in your own custom, hand-rolled, beautifully opaque bespoke dashboard.Fundamentally, React consists of a component creation framework that lets you build self-contained elements (like div or svg:rect) that have custom rendering methods, properties, state, and lifecycle methods.RenderOne of the major features of React is that it keeps track of a copy of the DOM, known as the Virtual DOM, which it can use to only render elements that need to change based on receiving new data saving cycles and speeding up your web applications.
- The render() function in each React component returns the elements that will be created by React (typically described using JSX, which is introduced in this chapter).
Bringing together D3.js and React is one of those things that isn’t new but is still not well-established enough to point to one sure way to do it. In this excerpt from my book D3.js in Action…
Continue reading “Interactive Applications with React & D3 – Elijah Meeks – Medium”