From 143181c8f26cd94ca23938cc12e5761b2321d2d0 Mon Sep 17 00:00:00 2001
From: Norman Xu <homyu.shinn@gmail.com>
Date: Fri, 10 Dec 2021 16:18:36 +0000
Subject: [PATCH] Support React Native by adding a shim for AssertionError

Co-authored-by: Mark Wubben <mark@novemberborn.net>
---
 AssertionError.js        |  1 +
 AssertionError.native.js | 10 ++++++++++
 index.js                 |  2 +-
 package.json             |  7 +++++--
 test.js                  | 11 +++++++++++
 5 files changed, 28 insertions(+), 3 deletions(-)
 create mode 100644 AssertionError.js
 create mode 100644 AssertionError.native.js

diff --git a/AssertionError.js b/AssertionError.js
new file mode 100644
index 0000000..ceedad9
--- /dev/null
+++ b/AssertionError.js
@@ -0,0 +1 @@
+module.exports = require('assert').AssertionError
diff --git a/AssertionError.native.js b/AssertionError.native.js
new file mode 100644
index 0000000..803fb49
--- /dev/null
+++ b/AssertionError.native.js
@@ -0,0 +1,10 @@
+// Enable use in React Native by shimming the Node.js AssertionError.
+
+class AssertionError extends Error {
+  constructor ({ message }) {
+    super(message)
+    this.name = 'AssertionError'
+  }
+}
+
+module.exports = AssertionError
diff --git a/index.js b/index.js
index eddfde0..4d92324 100644
--- a/index.js
+++ b/index.js
@@ -1,5 +1,5 @@
 'use strict'
-const { AssertionError } = require('assert')
+const AssertionError = require('./AssertionError')
 
 function never (message = 'Unexpected call to never()') {
   throw new AssertionError({ message, stackStartFn: never })
diff --git a/package.json b/package.json
index 372e5a7..0935690 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,9 @@
   "types": "index.d.ts",
   "files": [
     "index.d.ts",
-    "index.js"
+    "index.js",
+    "AssertionError.js",
+    "AssertionError.native.js"
   ],
   "scripts": {
     "test": "standard && tsd && nyc ava"
@@ -18,7 +20,8 @@
   "keywords": [
     "never",
     "typescript",
-    "assert"
+    "assert",
+    "react-native"
   ],
   "author": "Mark Wubben (https://novemberborn.net/)",
   "license": "ISC",
diff --git a/test.js b/test.js
index a490e6e..7aaa8fc 100644
--- a/test.js
+++ b/test.js
@@ -2,6 +2,7 @@
 const { AssertionError } = require('assert')
 const test = require('ava')
 const never = require('.')
+const ShimmedAssertionError = require('./AssertionError.native')
 
 test('throws when called', t => {
   t.throws(never, { instanceOf: AssertionError })
@@ -22,3 +23,13 @@ test('never() is not in the error stack', t => {
   const error = t.throws(wrapper)
   t.regex(error.stack.split('\n')[1], /wrapper/)
 })
+
+test('the shimmed AssertionError can be constructed', t => {
+  const error = t.throws(() => {
+    throw new ShimmedAssertionError({ message: 'Error message' })
+  }, {
+    instanceOf: ShimmedAssertionError,
+    message: 'Error message'
+  })
+  t.is(error.name, 'AssertionError')
+})