use globalThis (inline polyfill) instead of global

By using `global`, the package `pretty-format` can not be bundled for the browser by `esbuild` because `global` is not defined in a browser environment. Switching to `globalThis`, with a polyfill for older environments, allows `pretty-format` (and hopefully other packages) to be bundled by `esbuild --platform browser`.
jestjs · Jun 14, 2021 · 6de8504 · 6de8504
1 parent 91b94c8
commit 6de8504
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diff --git a/e2e/__tests__/__snapshots__/circusDeclarationErrors.test.ts.snap b/e2e/__tests__/__snapshots__/circusDeclarationErrors.test.ts.snap
@@ -16,7 +16,7 @@ FAIL __tests__/asyncDefinition.test.js
       14 |   });
       15 | });
 
-      at eventHandler (../../packages/jest-circus/build/eventHandler.js:146:11)
+      at eventHandler (../../packages/jest-circus/build/eventHandler.js:190:11)
       at test (__tests__/asyncDefinition.test.js:12:5)
 
   ● Test suite failed to run
@@ -31,7 +31,7 @@ FAIL __tests__/asyncDefinition.test.js
       15 | });
       16 |
 
-      at eventHandler (../../packages/jest-circus/build/eventHandler.js:114:11)
+      at eventHandler (../../packages/jest-circus/build/eventHandler.js:158:11)
       at afterAll (__tests__/asyncDefinition.test.js:13:5)
 
   ● Test suite failed to run
@@ -46,7 +46,7 @@ FAIL __tests__/asyncDefinition.test.js
       20 | });
       21 |
 
-      at eventHandler (../../packages/jest-circus/build/eventHandler.js:146:11)
+      at eventHandler (../../packages/jest-circus/build/eventHandler.js:190:11)
       at test (__tests__/asyncDefinition.test.js:18:3)
 
   ● Test suite failed to run
@@ -60,6 +60,6 @@ FAIL __tests__/asyncDefinition.test.js
       20 | });
       21 |
 
-      at eventHandler (../../packages/jest-circus/build/eventHandler.js:114:11)
+      at eventHandler (../../packages/jest-circus/build/eventHandler.js:158:11)
       at afterAll (__tests__/asyncDefinition.test.js:19:3)
 `;
diff --git a/scripts/babel-plugin-jest-native-globals.js b/scripts/babel-plugin-jest-native-globals.js
@@ -12,21 +12,99 @@
 
 module.exports = ({template}) => {
   const promiseDeclaration = template(`
+    var global = (function() {
+      if (typeof globalThis !== 'undefined') {
+        return globalThis;
+      } else if (typeof global !== 'undefined') {
+        return global;
+      } else if (typeof self !== 'undefined') {
+        return self;
+      } else if (typeof window !== 'undefined') {
+        return window;
+      } else {
+        return Function('return this')();
+      }
+    }())
     var Promise = global[Symbol.for('jest-native-promise')] || global.Promise;
   `);
   const symbolDeclaration = template(`
+    var global = (function() {
+      if (typeof globalThis !== 'undefined') {
+        return globalThis;
+      } else if (typeof global !== 'undefined') {
+        return global;
+      } else if (typeof self !== 'undefined') {
+        return self;
+      } else if (typeof window !== 'undefined') {
+        return window;
+      } else {
+        return Function('return this')();
+      }
+    }())
     var Symbol = global['jest-symbol-do-not-touch'] || global.Symbol;
   `);
   const nowDeclaration = template(`
+    var global = (function() {
+      if (typeof globalThis !== 'undefined') {
+        return globalThis;
+      } else if (typeof global !== 'undefined') {
+        return global;
+      } else if (typeof self !== 'undefined') {
+        return self;
+      } else if (typeof window !== 'undefined') {
+        return window;
+      } else {
+        return Function('return this')();
+      }
+    }())
     var jestNow = global[Symbol.for('jest-native-now')] || global.Date.now;
   `);
   const fsReadFileDeclaration = template(`
+    var global = (function() {
+      if (typeof globalThis !== 'undefined') {
+        return globalThis;
+      } else if (typeof global !== 'undefined') {
+        return global;
+      } else if (typeof self !== 'undefined') {
+        return self;
+      } else if (typeof window !== 'undefined') {
+        return window;
+      } else {
+        return Function('return this')();
+      }
+    }())
     var jestReadFile = global[Symbol.for('jest-native-read-file')] || fs.readFileSync;
   `);
   const fsWriteFileDeclaration = template(`
+    var global = (function() {
+      if (typeof globalThis !== 'undefined') {
+        return globalThis;
+      } else if (typeof global !== 'undefined') {
+        return global;
+      } else if (typeof self !== 'undefined') {
+        return self;
+      } else if (typeof window !== 'undefined') {
+        return window;
+      } else {
+        return Function('return this')();
+      }
+    }())
     var jestWriteFile = global[Symbol.for('jest-native-write-file')] || fs.writeFileSync;
   `);
   const fsExistsFileDeclaration = template(`
+    var global = (function() {
+      if (typeof globalThis !== 'undefined') {
+        return globalThis;
+      } else if (typeof global !== 'undefined') {
+        return global;
+      } else if (typeof self !== 'undefined') {
+        return self;
+      } else if (typeof window !== 'undefined') {
+        return window;
+      } else {
+        return Function('return this')();
+      }
+    }())
     var jestExistsFile = global[Symbol.for('jest-native-exists-file')] || fs.existsSync;
   `);