Jest connectStyle Error

I have gone through these following points

• Check latest documentation: https://docs.nativebase.io/
• Check for existing open/closed issues for a possible duplicate before creating a new issue: https://github.com/GeekyAnts/NativeBase/issues
• Use the latest NativeBase release: https://github.com/GeekyAnts/NativeBase/releases
• Check examples from NativeBase KitchenSink https://github.com/GeekyAnts/NativeBase-KitchenSink
• [] For discussion purpose make use of NativeBase Slack: http://slack.nativebase.io/
• [] For queries related to theme, check Theme Variables from Docs and live NativeBase Theme Editor http://nativebase.io/customizer/

Issue Description

import React from 'react'
import Route from '../route'
import renderer from 'react-test-renderer'

test('renders correctly', () => {
    const tree = renderer.create(<Route />).toJSON();
    expect(tree).toMatchSnapshot();
});

The app working properly in normal case. But when I started jest, it gave an error like this: `Test suite failed to run

XXX\node_modules\native-base-shoutem-theme\index.js:1
({"Object.<anonymous>":function(module,exports,require,__dirname,__filename,global,jest){import connectStyle from "./src/connectStyle";
                                                                                                ^^^^^^^^^^^^

SyntaxError: Unexpected identifier

  at ScriptTransformer._transformAndBuildScript (node_modules/jest-runtime/build/ScriptTransformer.js:440:17)
  at Object.<anonymous> (node_modules/native-base/src/index.js:1:1)`

node, npm, react-native, react and native-base version, expo version if used, xcode version

 node: v10.15.1
 npm: 6.4.1
"expo": "^31.0.4",
"native-base": "^2.8.1",
"react": "^16.5.0",
"react-native": "https://github.com/expo/react-native/archive/sdk-31.0.1.tar.gz",

Expected behaviour

Passing test processing

Actual behaviour

Gives the error

[theharness]

Same issue. Adding

"jest": {
    "preset": "react-native",
    "transformIgnorePatterns": [
      "/node_modules/(?!native-base)/"
    ]
}

to package.json solves the issue but greatly increases testing time. Haven’t found a better solution.

[GeDiez]

i found out the solution, reading into the doc of jest, it can be figured out by avoiding transform packages in the npm folder.

    "preset": "react-native",
    "transformIgnorePatterns": [
      "node_modules/(?!(react-[a-z, -]*|react-native|native-base-[a-z, -]*|react-native-[a-z, -]*)/)"
    ]
  }

notice: Im using react-native (no expo) and ignoring the native-base, react-native and react folders