ts-jest package.json

package.json

{
 "jest": {
    "preset": "react-native",
    "setupFiles": [
      "<rootDir>/jest-setup.js"
    ],
    "transform": {
      "^.+\\.js$": "<rootDir>/node_modules/babel-jest",
      ".(ts|tsx)": "<rootDir>/node_modules/ts-jest/preprocessor.js"
    },
    "testRegex": "(/__tests__/.*|\\.(test|spec))\\.(ts|tsx|js)$",
    "moduleFileExtensions": [
      "ts",
      "tsx",
      "js"
    ],
    "globals": {
      "__DEV__": true
    },
    "testPathIgnorePatterns": [
      "/node_modules/"
    ],
    "verbose": true
  }
}