From 64a76486f31bdc41f5c240d28263285683755938 Mon Sep 17 00:00:00 2001
From: Sebastian Balay <snbalay@gmail.com>
Date: Thu, 22 Oct 2020 10:41:59 +0200
Subject: [PATCH] extend react-native preset

---
 jest-preset.js     | 7 +++++++
 package.json       | 6 ++++--
 restore-promise.js | 1 +
 save-promise.js    | 1 +
 4 files changed, 13 insertions(+), 2 deletions(-)
 create mode 100644 jest-preset.js
 create mode 100644 restore-promise.js
 create mode 100644 save-promise.js

diff --git a/jest-preset.js b/jest-preset.js
new file mode 100644
index 0000000..7919473
--- /dev/null
+++ b/jest-preset.js
@@ -0,0 +1,7 @@
+const reactNativePreset = require('react-native/jest-preset');
+
+module.exports = Object.assign({}, reactNativePreset, {
+  setupFiles: [require.resolve('./save-promise.js')]
+    .concat(reactNativePreset.setupFiles)
+    .concat([require.resolve('./restore-promise.js')]),
+});
diff --git a/package.json b/package.json
index b6cd300..3139c5f 100644
--- a/package.json
+++ b/package.json
@@ -26,8 +26,10 @@
     "react-test-renderer": "16.13.1"
   },
   "jest": {
-    "preset": "react-native",
-    "setupFilesAfterEnv": ["@testing-library/jest-native/extend-expect"],
+    "preset": "./jest-preset.js",
+    "setupFilesAfterEnv": [
+      "@testing-library/jest-native/extend-expect"
+    ],
     "testMatch": [
       "**/__tests__/**/?(*.)+(spec).js?(x)"
     ]
diff --git a/restore-promise.js b/restore-promise.js
new file mode 100644
index 0000000..ddca6f4
--- /dev/null
+++ b/restore-promise.js
@@ -0,0 +1 @@
+global.Promise = global.originalPromise;
diff --git a/save-promise.js b/save-promise.js
new file mode 100644
index 0000000..651eb94
--- /dev/null
+++ b/save-promise.js
@@ -0,0 +1 @@
+global.originalPromise = Promise;