tsconfig.spec.json

{
  "extends": "tsconfig.json",
  "types": ["node", "jest", "@testing-library/react-native"],
  "compilerOptions": {
    "jsx": "react",
    // Only values not in expo/tsconfig.base
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    //    "module": "commonjs" /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */,
    "strict": false /* Enable all strict type-checking options. */,
    "allowSyntheticDefaultImports": true /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */,
    "removeComments": false /* Removes all comments. */,
    "strictPropertyInitialization": false /* Disables the need to initialize every property */,
    "allowJs": true,
    "isolatedModules": true
  }
}