Server/project/jest.config.ts

import { pathsToModuleNameMapper } from "ts-jest";
import type { JestConfigWithTsJest } from "ts-jest";
import { compilerOptions } from "./tsconfig.json";

const config: JestConfigWithTsJest = {
    preset: "ts-jest",
    testEnvironment: "node",
    roots: ["./tests/"],
    modulePaths: [compilerOptions.baseUrl],
    moduleNameMapper: pathsToModuleNameMapper(compilerOptions.paths),
};

export default config;