From f0fe7dce02b21515c8aec88ce58d1f386884be86 Mon Sep 17 00:00:00 2001
From: Franck Royer <franck@status.im>
Date: Fri, 30 Jul 2021 16:32:02 +1000
Subject: [PATCH] Fix TextDecoder error in tests

---
 .gitignore                                       |  1 -
 examples/min-js-web-chat/package.json            |  2 +-
 examples/min-js-web-chat/test/custom-test-env.js | 12 ++++++++++++
 3 files changed, 13 insertions(+), 2 deletions(-)
 create mode 100644 examples/min-js-web-chat/test/custom-test-env.js

diff --git a/.gitignore b/.gitignore
index c9c3cfdef..4d34676c5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,7 +2,6 @@
 .nyc_output
 build
 node_modules
-test
 src/**.js
 coverage
 *.log
diff --git a/examples/min-js-web-chat/package.json b/examples/min-js-web-chat/package.json
index 46ee30c69..2c5723d1c 100644
--- a/examples/min-js-web-chat/package.json
+++ b/examples/min-js-web-chat/package.json
@@ -16,7 +16,7 @@
   "scripts": {
     "start": "react-scripts start",
     "build": "react-scripts build",
-    "test": "react-scripts test",
+    "test": "react-scripts test --env=./test/custom-test-env.js",
     "eject": "react-scripts eject"
   },
   "eslintConfig": {
diff --git a/examples/min-js-web-chat/test/custom-test-env.js b/examples/min-js-web-chat/test/custom-test-env.js
new file mode 100644
index 000000000..e24fa776a
--- /dev/null
+++ b/examples/min-js-web-chat/test/custom-test-env.js
@@ -0,0 +1,12 @@
+const Environment = require('jest-environment-jsdom');
+
+module.exports = class CustomTestEnvironment extends Environment {
+  async setup() {
+    await super.setup();
+    if (typeof this.global.TextEncoder === 'undefined') {
+      const { TextEncoder, TextDecoder } = require('util');
+      this.global.TextEncoder = TextEncoder;
+      this.global.TextDecoder = TextDecoder;
+    }
+  }
+};