Fix test environments

1 files changed, 12 insertions, 10 deletions

diff --git a/setupTests.js b/setupTests.js
index 1b4e29f8..7658559c 100644
--- a/setupTests.js
+++ b/setupTests.js
@@ -1,14 +1,16 @@
 import '@testing-library/jest-dom'
 
-window.matchMedia = window.matchMedia || function() {
-    return {
-        matches: true,
-        media: '',
-        addListener: function() { return true },
-        removeListener: function() { return true },
-        addEventListener: function() { return true },
-        removeEventListener: function() { return true },
-        dispatchEvent: function() { return true },
-        onchange: function() { return true }
+if (typeof window !== 'undefined') {
+    window.matchMedia = window.matchMedia || function() {
+        return {
+            matches: true,
+            media: '',
+            addListener: function() { return true },
+            removeListener: function() { return true },
+            addEventListener: function() { return true },
+            removeEventListener: function() { return true },
+            dispatchEvent: function() { return true },
+            onchange: function() { return true }
+        }
     }
 }