To run tests for the project “https://github.com/trackjs/javascript-gameshow/”, you can use the following command:
npm run test
This command runs Jest and Enzyme tests using the configuration specified in the package.json file. The test script in package.json is defined as "test": "jest".
Jest is a popular JavaScript testing framework developed by Facebook. It is a versatile and feature-rich framework that supports various types of testing, including unit, integration, and functional testing. Jest also provides excellent out-of-the-box functionality, such as snapshot testing, code coverage analysis, and mocking.
Enzyme is a JavaScript testing utility developed by Airbnb. It is used to test React components by providing a set of methods to mount, manipulate, and traverse the component tree. Enzyme supports various rendering strategies, such as shallow rendering, full rendering, and static rendering. It also provides a flexible API to simulate user interactions, such as clicks, form submissions, and input changes.
The setupTests.ts file sets up the Enzyme adapter for Preact, which is a lightweight alternative to React. The configure function from Enzyme is used to configure the adapter, which is then used to mount and manipulate Preact components.
The fileMocks.ts and browserMocks.ts files provide mock implementations for various modules and functions used in the application. These mock implementations are used to isolate the tests from external dependencies, such as the file system, network, and browser.
The GameController.test.tsx file contains the actual test cases for the GameController module. The describe function from Jest is used to group related test cases, and the it function is used to define individual test cases. The expect function from Jest is used to assert the expected behavior of the GameController module.
For more information on Jest and Enzyme, please refer to the following resources:
- Jest: https://jestjs.io/
- Enzyme: https://enzymejs.github.io/enzyme/
- Jest with Preact: https://github.com/preactjs/enzyme-adapter-preact-pure
- Jest documentation: https://jestjs.io/docs/getting-started
- Enzyme documentation: https://enzymejs.github.io/enzyme/docs/api/
- Jest and Enzyme cheat sheet: https://dev.to/dabit3/jest-and-enzyme-cheat-sheet-3kj5
