diff --git a/src/env.js b/src/env.js
index f15c4bc..f5aa940 100644
--- a/src/env.js
+++ b/src/env.js
@@ -8,8 +8,10 @@ const IS_ELECTRON_RENDERER = IS_ELECTRON && IS_ENV_WITH_DOM
 const IS_NODE = typeof require === 'function' && typeof process !== 'undefined' && typeof process.release !== 'undefined' && process.release.name === 'node' && !IS_ELECTRON
 // eslint-disable-next-line no-undef
 const IS_WEBWORKER = typeof importScripts === 'function' && typeof self !== 'undefined' && typeof WorkerGlobalScope !== 'undefined' && self instanceof WorkerGlobalScope
+const IS_TEST = typeof process !== 'undefined' && typeof process.env !== 'undefined' && process.env.NODE_ENV === 'test'
 
 module.exports = {
+  isTest: IS_TEST,
   isElectron: IS_ELECTRON,
   isElectronRenderer: IS_ELECTRON_RENDERER,
   isNode: IS_NODE,