Testing using ReactTestUtils

ReactTestUtils is used to test React-based components. It can simulate all the JavaScript-based events, which ReactJS supports. The documentation is cited in the Facebook developer site (https://facebook.github.io/react/docs/test-utils.html).

The code is as shown for the stimulate function:

Simulate.{eventName}(
  DOMElement element,
  [object eventData]
)

Installing React and JSX

As mentioned earlier, while installing the Chai and mocha, we are here installing React- and JSX-specific test tools (ReactTestUtils) in order to ease our task. Let's explore the ReactTestUtils with help from some React-based components and stimulate them to test the behavior and functionality.

The following is an example of such a code.

We need to install the jest package via npm with the following code in the terminal:

sudo npm install jest-cli –save-dev

sudo/root access to the machine/server where the node packages has to be installed is required. This is particularly required as the directory...