From 7e23c7c5654818fa076eeb627b709d39130f57f6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C5=82=20Pierzcha=C5=82a?= <thymikee@gmail.com>
Date: Wed, 3 Apr 2019 09:07:07 -0700
Subject: [PATCH] Make Jest transform @react-native-community packages by
 default (#24294)

Summary:
Currently, `react-native` Jest preset will not automatically transpile extracted Lean Core modules (all under `react-native-community` org), so maintainers will likely need to update their docs on how to do that (it's a common pain in RN testing story).

We can make it easier for users and maintainers by adding RNC modules to the `transformIgnorePatterns` whitelist we have in Jest preset. Some of them are not necessary to transpile, but I'd say it's a small sacrifice to make (having first test run possibly slower) for having less friction around migrating to extracted modules.

[General] [Added] - make Jest transform react-native-community/ packages by default
Pull Request resolved: https://github.com/facebook/react-native/pull/24294

Differential Revision: D14748962

Pulled By: cpojer

fbshipit-source-id: 36300ee021f03b8c13275a6e0cf28d988ee5beba
---
 jest-preset.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/jest-preset.js b/jest-preset.js
index 8e1db98cf8206c..3de412bebd571e 100644
--- a/jest-preset.js
+++ b/jest-preset.js
@@ -28,7 +28,9 @@ module.exports = {
       './jest/assetFileTransformer.js',
     ),
   },
-  transformIgnorePatterns: ['node_modules/(?!(jest-)?react-native)'],
+  transformIgnorePatterns: [
+    'node_modules/(?!(jest-)?react-native|@react-native-community)',
+  ],
   setupFiles: [require.resolve('./jest/setup.js')],
   testEnvironment: 'node',
 };