How to use React testing to create apps in your office
By Naren ShahanPublished Apr 14, 2017 07:03:04TUTORIAL: Create React tests for your app, then share them with others in your team.
You can now use the official React Testing library to test your app’s functionality.
With a few simple steps, you can create an app that uses React testing and publish it to the world.
In this article, we’ll show you how to set up your app and publish the resulting app to your team’s React testing library.
We’ll use the React Testing Library to test our application.
You’ll need an existing app on your team to start testing, but you can easily add more React components to your app by using the following command:The library’s documentation has a few more tips on how to use the library to help you with the process.
If you’ve never created a React app before, take a moment to create an account on the official GitHub repository and create an empty app, using the name .
Then, import the following imports:You’ll need to add this line to your init.js file:Next, we need to create a simple hello world app:Once you’ve created the app, it will run a test suite.
This will allow your team members to see your app as it loads and runs.
Your app will display a simple error message if any of the tests pass or fail.
You will need to rerun these tests if any tests fail.
To do this, open the hello world.js script in your browser and run:After the app loads, you’ll see the following error message:Your app is now running.
This is a simple example app that displays a hello world message.
It’s a good start to getting started with React testing.
In this section, we will explore some of the best React testing tools for your team and explain how you can leverage them.
We’ll also show you some of how to customize your app so that it runs faster and better with a particular test suite tool.
Step 1: Create a basic hello world demo appWe’ll begin by creating a simple app that only displays a simple message.
To get started, open your hello world script in a text editor.
Here we’ll create a file called hello-world.js.
Next, open up the file and create a new file called HelloWorld.js in the same directory.
The HelloWorld file contains the basic code needed to display a message.
Open up the HelloWorld script again and add a new line to initialize our app:Next we’ll add a test for the message and pass the test:Finally, we’re done!
You should see the message display and the error message go away.
Your app should now run smoothly with a single command.
Step 2: Create your first React testWe’ll now create a test that uses the new React Testing tool.
First, create a function to display the message.
Next we’re going to add a line to display an error message.
Step 3: Create an empty hello world directoryNow that we have a simple HelloWorld app running, let’s add a simple directory named hello-state to our hello world folder.
Open your hello-states folder and create the following file:Inside this file, we want to create the hello state file, so open it up in your text editor and paste the following code:Now open up your hello state script and add this new line:We can now open up a browser and view the contents of this file.
Open the hello-message.js test and enter the following line:Finally open up an app in your web browser, and you should see a message appear in the message box.
You can now see the test pass with no error message at all.
You should now see your application running with no errors.
Step 4: Add a new test for our messageIn our next section, I’ll add another test to test the HelloMessage function.
The new test will test the function that returns the message, which we’ll call hello.
Finally, open our hello-messages folder and add the following files:Inside these files, we have two new tests.
The first test checks if the message is displayed.
The second test checks that the message appears.
Open the hello.js code again and create another file named HelloMessage.js, and open it in your editor.
We’re going, now we have to add another function to our HelloMessage that we’ll name hello.
You may already be familiar with this function.
Next add a couple of lines to your hello.message.spec.js to add the function we’ll be using in the next section:Finally add the test to your HelloMessage script.
This test will check if the Hello message is currently displayed.
Open a browser window, and navigate to https://localhost:8080/hello.html.
You’re now going to see the HelloHello function appear