1611379560
The topic for today is Jest, a JavaScript testing framework which comes in handy for testing your JavaScript projects. At the time of this writing, it comes with great support for Babel, TypeScript, Node, React, Angular, Vue, and a lot more.
According to the official documentation, it provides the following functionalities:
Jest is a great testing toolkit for developers who are looking for other alternatives and have experience with the following testing frameworks:
Let’s proceed to the next section and start installing Jest.
#testing #jest #javascript #programming
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It is time to learn new test frameworks in 2021 to improve your code quality and decrease the time of your testing phase. Let’s explore 6 options for devs.
It is time to learn new test frameworks to improve your code quality and decrease the time of your testing phase. I have selected six testing frameworks that sound promising. Some have existed for quite a long time but I have not heard about them before.
At the end of the article, please tell me what you think about them and what your favorite ones are.
Robot Framework is a generic open-source automation framework. It can be used for test automation and robotic process automation (RPA).
Robot Framework is open and extensible and can be integrated with virtually any other tool to create powerful and flexible automation solutions. Being open-source also means that Robot Framework is free to use without licensing costs.
The RoboFramework is a framework** to write test cases and automation processes.** It means that it may replace** your classic combo Selenium + Cucumber + Gherkins**. To be more precise, the Cucumber Gherkins custom implementation you wrote will be handled by RoboFramework and Selenium invoked below.
For the Java developers, this framework can be executed with Maven or Gradle (but less mature for the latter solution).
#java #testing #test #java framework #java frameworks #testing and developing #java testing #robot framework #test framework #2021
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List of some useful JavaScript Frameworks and libraries for website, web apps, and mobile apps development, that developers should know about to make selection easier.
This article will help you understand the various types of JavaScript Framework available in the market. When it comes to choosing the best platform for you, it’s not only the number of features you need to consider but also its functionality. The ease with which it fits within your project is also an essential factor. The next step is to choose the framework that best fits your company requirements or you can select the best from the list of top web development companies to develop your product based on your requirements.
#javascript frameworks for web applications #web applications development companies #progressive javascript framework #javascript frameworks #javascript #frameworks
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We are moving toward a future where everything is going to be autonomous, fast, and highly efficient. To match the pace of this fast-moving ecosystem, application delivery times will have to be accelerated, but not at the cost of quality. Achieving quality at speed is imperative and therefore quality assurance gets a lot of attention. To fulfill the demands for exceptional quality and faster time to market, automation testing will assume priority. It is becoming necessary for micro, small, and medium-sized enterprises (SMEs) to automate their testing processes. But the most crucial aspect is to choose the right test automation framework. So let’s understand what a test automation framework is.
A test automation framework is the scaffolding that is laid to provide an execution environment for the automation test scripts. The framework provides the user with various benefits that help them to develop, execute, and report the automation test scripts efficiently. It is more like a system that was created specifically to automate our tests. In a very simple language, we can say that a framework is a constructive blend of various guidelines, coding standards, concepts, processes, practices, project hierarchies, modularity, reporting mechanism, test data injections, etc. to pillar automation testing. Thus, the user can follow these guidelines while automating applications to take advantage of various productive results.
The advantages can be in different forms like the ease of scripting, scalability, modularity, understandability, process definition, re-usability, cost, maintenance, etc. Thus, to be able to grab these benefits, developers are advised to use one or more of the Test Automation Framework. Moreover, the need for a single and standard Test Automation Framework arises when you have a bunch of developers working on the different modules of the same application and when we want to avoid situations where each of the developers implements his/her approach towards automation. So let’s have a look at different types of test automation frameworks.
Now that we have a basic idea about Automation Frameworks, let’s check out the various types of Test Automation Frameworks available in the marketplace. There is a divergent range of Automation Frameworks available nowadays. These frameworks may differ from each other based on their support to different key factors to do automation like reusability, ease of maintenance, etc.
Apart from the minimal manual intervention required in automation testing, there are many advantages of using a test automation framework. Some of them are listed below:
#devops #testing #software testing #framework #automation testing #mobile app testing #test framework
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I use Jest nearly every day when working, and it’s a fantastic tool. It lets me ship my code with confidence, knowing that I have produced something which works as intended.
More often than not, when I write tests for my code, I end up catching something I hadn’t considered and go back to take that into account. It saves me from getting called in the evening to fix something in production. For me, that’s a big deal.
With that said, I didn’t really know how jest worked. I used it all the time, but had no real clue what was going on under the hood.
Recently, I bought Kent C Dodd’s excellent Testing JavaScript course which has been incredible for increasing my knowledge.
As part of that, he digs into how jest works under the hood, and this encouraged me to try building my own tiny version. So I want to pass on that knowledge to you!
This will be a small series of posts on each part, but you can skip ahead and see the full repo here.
Today’s focus will be building the actual test runner. This simply accepts a test with a title, and a callback. We run the callback and if there are no errors, the test passes!
If an error is thrown, then we deem the test to have failed.
Take a look:
const test = async (title: string, callback: Function) => {
try {
await callback();
console.log(chalk.green(`\u2713 ${title}`));
} catch (error) {
console.error(chalk.red(`✕ ${title}`));
console.error(error);
}
So as you can see, we have our test function which accepts a title which is a string, and a callback which is the function which we want to test.
We then run our callback function in a try/catch block, and assuming that nothing is caught, we say the test has passed.
This allows us to run something like this:
test('sum adds numbers', () => {
const sum = (a, b) => a + b
const result = sum(3, 7)
const expected = 10
expect(result).toBe(expected)
})
So as you can see, we pass a title, and a function where we sum two numbers: 3 and 7. But on our final line, we see something new: expect and toBe. These are our assertions and we have nothing to handle them yet.
#jest #javascript #tdd #unit-testing #javascript-top-story #how-to-build-a-jest-clone #building-test-runner-in-jest #hackernoon-top-story
1611379560
The topic for today is Jest, a JavaScript testing framework which comes in handy for testing your JavaScript projects. At the time of this writing, it comes with great support for Babel, TypeScript, Node, React, Angular, Vue, and a lot more.
According to the official documentation, it provides the following functionalities:
Jest is a great testing toolkit for developers who are looking for other alternatives and have experience with the following testing frameworks:
Let’s proceed to the next section and start installing Jest.
#testing #jest #javascript #programming