Tushar Roy Chowdhury·1 day agoTesting in NestJs — Unit & E2EHello there !!! It is irrefutable that testing is the most important part of software development. Apart from other testing strategies, unit tests as well as end-to-end tests are top of that list. In that case, we will be going to learn those strategies by testing an application that is…Jest2 min readJest2 min read
zeeshan khan·2 days agoJest Configuration in angularIn this article, I am writing about all the necessary steps you need to do while configuring jest in angular. Here is All Step to configure jest in angular Create Angular project or existing project Uninstall all karma jasmine package Remove the test object from angular.json Delete karma.config.js file and test.ts file npm install jest @types/jest jest-preset-angular Create setup.jest.ts…Jest3 min readJest3 min read
Kőműves Ákos·1 day agoHow to migrate from Mocha to JestJest is a simple testing library that works with zero configuration. Because of its great API — if you’re already using Mocha — with a few find & replace and minimal effort, you can move to Jest without rewriting any of your tests. In this post, I’ll show you how…Jest4 min readJest4 min read
Brett Tanonaka·2 days agoStarting testing during the middle of a sprintToday, I spent time trying to figure out how to create my first ever test with Jest. Our project is already well underway and each person on my team has a substantial amount of ‘working’ code. …Jest1 min readJest1 min read
Dmitry Efimenko·4 days agoGoing from Jest to Karma/Jasmine in an NX monorepo🤔 I honestly don’t understand the hype around Jest. People often cite the following for switching from Karma/Jasmine to Jest: #1 Jest has better performance #2 Jest is easier to configure #3 Jest has easier CI/CD integration #4 Jest has a nicer reporting format Here’s what I think about each of these bullet points: #1 Jest has better performance There is some merit to…Jest5 min readJest5 min read
Vamshi Suram·4 days agoDebugging and setting up correct mocks with Apollo MockedProviderAfter React hooks has come into picture, it has become pretty common to use hooks pattern. Thanks to Apollo for making apollo hooks available for integrating GraphQL calls into UI components. However when it comes to unit testing, developers often completely mock the hooks (useQuery, useMutation) provided by Apollo-Client. What…Jest3 min readJest3 min read
Nyx·3 days agoTesting React Router Dom using Jest FrameworkTesting React Router DOM using Jest in a React application can help ensure that your routing behaves as expected. Here’s a step-by-step guide on how to do this: Install the necessary packages: You’ll need @testing-library/react, @testing-library/jest-dom, and @testing-library/user-event for this example. You should already have jest installed as it comes with create-react-app. yarn add…Jest2 min readJest2 min read
Kemal Taufik Fikri·4 days agoReplacing and Inspecting Using Spies, Stub, and Mocks #4 — Mock an entire module with JestSo far, we’ve mocked a single function. Let’s mock an entire module with Jest, but how does it work? in nodejs and in most languages, units of code usually have dependencies. That’s a good thing, because it promotes re-usability and modularity. …Jest5 min readJest5 min read
Harpreet Kaur·4 days agoSearch for a specific text inside component in Jest test casesHere’s an example of a Jest test case that searches for a specific text within a rendered component:Jest1 min readJest1 min read
Shaikh Zaki Mohammed·5 days agoJEST Started with Unit TestingEither you are in a deep love with unit testing or hating it to the core, but the bottom line is to do it anyway. …Jest6 min readJest6 min read
