Using jest-extended?

[ziriax]

I guess it is not possible using to use jest-extended without ejecting?

[DorianGrey]

At least it should work without ejecting.

According to the docs of that package, jest-extended should be added via the setupTestFrameworkScriptFile configuration of jest. By default, the template picks up <rootDir>/src/testSetup.ts automatically, if it is present:

create-react-app-typescript/scripts/utils/createJestConfig.js

Lines 17 to 19 in eb34688

	const setupTestsFile = fs.existsSync(paths.testsSetup)
	? '<rootDir>/src/setupTests.ts'
	: undefined;

jest-extended in particular also comes with proper typings.