jest.config.cjs

/** @type {import('ts-jest').JestConfigWithTsJest} */
module.exports = {
	preset: "ts-jest",
	testEnvironment: "node",
	maxWorkers: 1,
	extensionsToTreatAsEsm: [".ts"],
	moduleNameMapper: {
		"^(\\.{1,2}/.*)\\.js$": "$1"
	},
	transform: {
		// '^.+\\.[tj]sx?$' to process js/ts with `ts-jest`
		// '^.+\\.m?[tj]sx?$' to process js/ts/mjs/mts with `ts-jest`
		"^.+\\.tsx?$": [
			"ts-jest",
			{
				useESM: true
			}
		]
	}
};