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- Dictionaryjest/dʒɛst/
noun
- 1. a thing said or done for amusement; a joke: "he laughed uproariously at his own jest" Similar
verb
- 1. speak in a joking way: "you jest, surely?" Similar
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The window object in Jest is self-mocking. One of the things unaddressed in other answers is a comment by the OP: Using Jest, I don't know how to mock the window. The window object is already mocked and can be referenced out of the box. From the documentation: Jest ships with jsdom which simulates a DOM environment as if you were in the browser.
Dec 30, 2017 · The way I did it can be found in this Stack Overflow question. It is important to use resetModules before each test and then dynamically import the module inside the test: const OLD_ENV = process.env; beforeEach(() => {. jest.resetModules() // Most important - it clears the cache. process.env = { ...OLD_ENV }; // Make a copy. });
Since in package.json you have: "moduleDirectories": [ "node_modules", "src" ] Which says that each module you import will be looked into node_modules first and if not found will be looked into src directory.
Oct 2, 2015 · Currently (Jul '22) localStorage can not be mocked or spied on by jest as you usually would, and as outlined in the create-react-app docs. This is due to changes made in jsdom. You can read about it in the jest and jsdom issue trackers. As a workaround, you can spy on the prototype instead: // does not work: jest.spyOn(localStorage, "setItem");
Apr 7, 2023 · Also, it seems you can skip the second transform (the regex expression loos the same) the first one applies both to .ts and .tsx files and the second to .t and .ts. "tsConfig" is deprecated, use "tsconfig" instead. I have done this, yet Jest still gives me the same warning Define `ts-jest` config under `globals` is deprecated..
May 4, 2015 · The gist: If using the --config <path/to/json> to direct jest to your configuration json file, you only put the JSON information in the file without the "jest" keyword. "verbose": true. If you want to use the package.json to configure jest, add the "jest" key and then your configuration.
Aug 4, 2021 · For some reason, my custom tsconfig file isn't being picked up in jest.config.ts. Here is my jest.config.ts: module.exports = { setupFilesAfterEnv: [`./jest.setup.ts ...
Add the --rootdir option to your command: jest --verbose --rootDir=laratest. Or in scripts: scripts: { "test": "jest --verbose --rootDir=laratest" } As noted by @Dimitri, this will treat laratest as the location for configuration, not just tests. For that case, just add the argument.
Jul 21, 2021 · When testing a function that uses either the TextEncoder or the TextDecoder I get: ReferenceError: TextEncoder is not defined ReferenceError: TextDecoder is not defined I am using jsdom, so why is...
Aug 30, 2023 · ts-jest[ts-jest-transformer] (WARN) Define ts-jest config under globals is deprecated. Please do transform:
