Found a total of 10000 related content
Unit Testing React Components with Vitest and Testing Library
Article Introduction：First install and configure Vitest and ReactTestingLibrary, and then write tests centered on user behavior. 1. Installation dependencies: vitest, @testing-library/react, @testing-library/jest-dom, jsdom; 2. Configure the test environment to jsdom in vite.config.ts and set up setupFiles; 3. Create setupTest.ts to introduce jest-dom to extend expect; 4. Use render to render components, screen query elements, fireEvent to simulate interaction, and create vi.fn()
2025-07-30
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518
How to simplify API functional testing using coduo/php-matcher library?
Article Introduction：When developing APIs, I often encounter a challenge: how to effectively perform functional testing of APIs, especially when APIs involve complex data structures. It is a headache to manually verify whether the returned data meets expectations each time. Fortunately, I found the coduo/php-matcher library, which allows me to easily match values ??to patterns, simplifying the functional testing process of the API.
2025-04-17
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758
Getting Started with React Testing Library
Article Introduction：I can guess what you are thinking: another React testing library? So many have already been covered here on CSS-Tricks (heck, I’ve already posted one covering
2025-04-21
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846
ricks for React Testing Library to make your unit tests better
Article Introduction：Effective React component testing is crucial. React Testing Library (RTL) simplifies this process, emphasizing user interaction testing. This article presents five advanced RTL techniques for writing more efficient and maintainable unit tests.
1.
2025-01-28
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Unit Testing JavaScript with Jest and React Testing Library
Article Introduction：Jest and ReactTestingLibrary are the gold standard for React application testing. Jest provides test runs, assertions, _mock_ and coverage reports. ReactTestingLibrary tests components by simulating user behavior and accessibility queries. If you use CreateReactApp, both are built in. Custom configurations require installing jest, @testing-library/react and setting jest.config.js and Babel configurations; unit tests use test() and expect() to verify function logic, such as formatPrice function formatting results; component test pass r
2025-07-25
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788
Building a Simple SQLite Library Manager in Python
Article Introduction：Building a Simple SQLite Library Manager in Python
Managing data efficiently is a key part of any project, and SQLite makes this task simple and lightweight. In this tutorial, we’ll build a small Python application to manage a library database,
2024-12-10
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873
A Guide to Testing JavaScript with Jest and React Testing Library
Article Introduction：Jest and ReactTestingLibrary are the preferred combination of React application testing, which can help developers write maintainable tests centered on user behavior. 1.Jest provides built-in assertions, simulations and test runners, which are available out of the box; 2.ReactTestingLibrary encourages user-oriented testing through accessibility query methods such as getByRole and getByText; 3. There is no need to configure in CreateReactApp, and the custom environment needs to install jest, @testing-library/react and set jest.config.js; 4. Use render to render components when writing tests, s
2025-08-16
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Retrieve JSON object data from JSON Simple library
Article Introduction：This article aims to describe how to retrieve data from JSON objects using the JSON Simple library. We will use a simple example to demonstrate how to parse a JSON string containing key-value pairs and extract the value corresponding to a specific key. This article will provide clear code examples and detailed step instructions to help readers quickly grasp the basic usage of the JSON Simple library.
2025-08-29
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256
React Testing Library: Solution to test the file is empty when uploading
Article Introduction：This article aims to solve the problem that the file object is empty when using React Testing Library for file upload testing. By providing a custom createFile function, it simulates real file objects, ensuring that the file upload behavior in the test environment is consistent with the browser environment, thereby achieving more reliable testing.
2025-09-10
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269
Retrieve data of JSON objects from JSON Simple library
Article Introduction：This article describes how to retrieve data from JSON objects using the JSON Simple library. With a simple example, it demonstrates how to parse a JSON string containing a username, address, and password and use the get() method to get the value of a specific key. This article will help you understand the basic usage of the JSON Simple library and avoid common null pointer exceptions.
2025-08-24
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399
Jotai: A Simple and Powerful State Management Library for React
Article Introduction：Jotai: A Primitive and Flexible State Management Library for React
Jotai is a minimalistic state management library for React applications. It offers a simple, atomic approach to managing state, allowing you to manage and update state directly
2024-12-20
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786
Testing React Components with Jest and React Testing Library
Article Introduction：The mainstream way to test React components is to use Jest and ReactTestingLibrary to cooperate. 1. First, make sure to install dependencies, including jest, @testing-library/react, and Babel-related packages, and configure package.json to support JSX and modern JS; 2. Write basic tests to verify whether the component can render normally through the render method; 3. Use fireEvent to simulate user clicks, inputs, etc., and use jest.fn() to verify whether the event is called; 4. It is recommended to use getByRole or getByText to query elements first, because they are more in line with barrier-free standards and are stable. If you need to use
2025-07-22
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Retrieve data from JSON objects using JSON Simple library
Article Introduction：This article describes how to use the JSON Simple library to extract specific data from a JSON object. Through a simple example, it demonstrates how to parse JSON strings and use key-value pairs to obtain the required data, avoiding common null pointer errors, and helping developers quickly get started with JSON data processing.
2025-08-28
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997
What is the Easiest Form Validation Library for PHP for Beginners?
Article Introduction：Easiest Form Validation Library for PHPWhen dealing with form submissions in PHP, validating and sanitizing user input is crucial to ensure the integrity and security of your application. Here's a simple library that can help you achieve this with ea
2024-10-17
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710
How to solve mock problems in PHP unit testing? Use php-mock/php-mock-integration!
Article Introduction：When conducting PHP unit tests, we often encounter situations where we need to simulate global functions or static methods. At this time, we need an effective tool to help us complete these simulations. Recently, I encountered such a problem in the project. After trying multiple methods, I finally found the library php-mock/php-mock-integration, which greatly simplified my testing work.
2025-04-17
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874
Mastering Unit Testing in PHP: Tools, Frameworks, and Best Practices
Article Introduction：How to Perform Unit Testing in PHP: Tools and Best Practices
Unit testing is a critical part of the software development lifecycle that ensures individual components or functions of an application behave as expected. In PHP, unit testing helps
2024-12-26
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720
