From ef0057f6f345cd4ba982d154deac6b161f2f7df8 Mon Sep 17 00:00:00 2001
From: Ahn <anhpnnd@gmail.com>
Date: Tue, 10 Nov 2020 15:44:27 +0100
Subject: [PATCH] refactor(preset): explicitly define `jsdom` for test
 environment (#621)

Jest 27 sets default test environment to `node`. Since we need `jsdom` so we need to explicitly set it in `jest-preset.js`.

Jest 27 will still bundle `jest-environment-jsdom` in the main package and Jest 28 will detach them. However, we should just go ahead and set explicitly `jest-environment-jsdom` in our dependencies list

More information see https://jestjs.io/blog/2020/05/05/jest-26
---
 jest-preset.js | 1 +
 package.json   | 1 +
 2 files changed, 2 insertions(+)

diff --git a/jest-preset.js b/jest-preset.js
index dd57b3771..3515fcbc1 100644
--- a/jest-preset.js
+++ b/jest-preset.js
@@ -11,6 +11,7 @@ module.exports = {
       },
     },
   },
+  testEnvironment: 'jsdom',
   transform: {
     '^.+\\.(ts|js|html)$': 'ts-jest',
   },
diff --git a/package.json b/package.json
index e8860adf0..5a0a7fbb8 100644
--- a/package.json
+++ b/package.json
@@ -29,6 +29,7 @@
   },
   "dependencies": {
     "@jest/create-cache-key-function": "^26.5.0",
+    "jest-environment-jsdom": "^26.6.2",
     "pretty-format": "26.x",
     "ts-jest": "^26.2.0"
   },