jest.config.js

/** @type {import('jest').Config} */
module.exports = {
  preset: "ts-jest",
  testEnvironment: "node",
  testMatch: ["**/__tests__/**/*.ts", "**/?(*.)+(spec|test).ts"],
  testPathIgnorePatterns: ["/node_modules/", "/dist/"],
  coverageDirectory: "coverage",
  coveragePathIgnorePatterns: ["/node_modules/", "/dist/"],
  transform: {
    "^.+\\.ts$": [
      "ts-jest",
      {
        useESM: true,
        tsconfig: {
          paths: {
            "@/*": ["./src/*"],
          },
        },
      },
    ],
  },
  moduleDirectories: ["node_modules", "src"],
  moduleNameMapper: {
    "^@/(.*)$": "<rootDir>/src/$1",
  },
  extensionsToTreatAsEsm: [".ts", ".mts"],
  moduleFileExtensions: ["ts", "mts", "js", "mjs", "json", "node"],
};