fix: set up globalThis for jest tests if not defined

Issue on Jest jsdom/jsdom#2961 globalThis in Node.js nodejs/node#22835
trivikr · Jan 4, 2022 · db212a4 · db212a4
1 parent 9abf92f
commit db212a4
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diff --git a/jest.config.js b/jest.config.js
@@ -9,4 +9,5 @@ module.exports = {
   ],
   testPathIgnorePatterns: ["/node_modules/", "<rootDir>/clients/client-.*"],
   coveragePathIgnorePatterns: ["/node_modules/", "<rootDir>/clients/client-.*", "/__fixtures__/"],
+  setupFiles: ["<rootDir>/scripts/jest/setupGlobalThis.js"],
 };
diff --git a/scripts/jest/setupGlobalThis.js b/scripts/jest/setupGlobalThis.js
@@ -0,0 +1,11 @@
+// Remove this hack once `globalThis` issue is resolved or we drop testing Node.js 10.x
+// Issue on Jest https://github.com/jsdom/jsdom/issues/2961
+// PR which added globalThis in Node.js https://github.com/nodejs/node/pull/22835
+if (!global.globalThis) {
+  Object.defineProperty(global, "globalThis", {
+    value: global,
+    writable: true,
+    enumerable: false,
+    configurable: true,
+  });
+}