babel-plugin-jest-hoist
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Babel plugin to hoist `jest.disableAutomock`, `jest.enableAutomock`, `jest.unmock`, `jest.mock`, calls above `import` statements. This plugin is automatically included when using [babel-jest](https://github.com/jestjs/jest/tree/main/packages/babel-jest).
The babel-plugin-jest-hoist npm package is designed to work with Jest, a popular JavaScript testing framework. It allows Jest to hoist `jest.mock`, `jest.unmock`, `jest.enableAutomock`, `jest.disableAutomock`, `jest.useFakeTimers`, `jest.useRealTimers`, `jest.setMock`, and `jest.clearAllMocks` calls to the top of the file. This is necessary because Jest needs to isolate modules for mocking before they are used in tests, and doing so manually can be error-prone and tedious.
Hoisting jest.mock calls
Automatically hoists `jest.mock` calls to the top of the file, ensuring that modules are mocked before any other code execution.
"use strict";\njest.mock('moduleName');\nconsole.log('This is a test.');"Hoisting jest.useFakeTimers calls
Automatically hoists `jest.useFakeTimers` calls to the top, allowing tests to use fake timers from the start.
"use strict";\njest.useFakeTimers();\nconsole.log('This is a test with fake timers.');"Similar to babel-plugin-jest-hoist, babel-plugin-rewire allows for modifying module internals, such as variables and functions, for testing purposes. However, it focuses on enabling the rewire functionality rather than specifically working with Jest's global methods.
While ts-jest is a TypeScript preprocessor with source map support for Jest that lets you use Jest to test projects written in TypeScript, it includes features for handling module mocking and hoisting in a way that's compatible with TypeScript, offering a similar but TypeScript-focused functionality.
Babel plugin to hoist jest.disableAutomock, jest.enableAutomock, jest.unmock, jest.mock, calls above import statements. This plugin is automatically included when using babel-jest.
$ yarn add --dev babel-plugin-jest-hoist
babel.config.js (Recommended)module.exports = {
plugins: ['jest-hoist'],
};
$ babel --plugins jest-hoist script.js
require('@babel/core').transform('code', {
plugins: ['jest-hoist'],
});
29.6.3
[expect, @jest/expect-utils] ObjectContaining support sumbol as key (#14414)[expect] Remove @types/node from dependencies (#14385)[jest-core] Use workers in watch mode by default to avoid crashes (#14059 & #14085).[jest-reporters] Update istanbul-lib-instrument dependency to v6. (#14401)[jest-mock] Revert #13692 as it was a breaking change (#14429)[jest-mock] Revert #13866 as it was a breaking change (#14429)[jest-mock] Revert #13867 as it was a breaking change (#14429)[@jest/reporters] Marks Reporter's hooks as optional (#14433)[jest-runtime] Fix dynamic ESM import module bug when loaded module through jest.isolateModulesAsync (#14397)[jest-changed-files, jest-circus, jest-console, @jest/core, @jest/runtime, @jest/transform] Use invariant and notEmpty from jest-util rather than own internal (#14366)FAQs
Babel plugin to hoist `jest.disableAutomock`, `jest.enableAutomock`, `jest.unmock`, `jest.mock`, calls above `import` statements. This plugin is automatically included when using [babel-jest](https://github.com/jestjs/jest/tree/main/packages/babel-jest).
The npm package babel-plugin-jest-hoist receives a total of 27,336,647 weekly downloads. As such, babel-plugin-jest-hoist popularity was classified as popular.
We found that babel-plugin-jest-hoist demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 6 open source maintainers collaborating on the project.
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