package.json

"jest": {
    "globals": {
      "ts-jest": {
        "tsConfigFile": "tsconfig.json"
      }
    },
    "moduleFileExtensions": [
      "ts",
      "js",
      "json"
    ],
    "moduleDirectories": [
      "node_modules",
      "server"
    ],
    "transform": {
      "^.+\\.(ts|tsx)$": "./node_modules/ts-jest/preprocessor.js"
    },
    "testMatch": [
      "**/tests/**/*.test.(ts|js)"
    ],
    "testEnvironment": "node"
  },