Added Jest test to verify UMD API-forwarding for scheduling package

fixtures/tracking/index.html

@@ -63,8 +63,8 @@ <h3>
       </li>
     </ol>
     <!-- Load the tracking API before react to test that it's lazily evaluated -->
-    <script src="../../build/node_modules/react-scheduler/umd/react-scheduler.js"></script>
-    <script src="../../build/node_modules/react-scheduler/umd/react-scheduler-tracking.js"></script>
+    <script src="../../build/node_modules/react-scheduler/umd/react-scheduler.development.js"></script>
+    <script src="../../build/node_modules/react-scheduler/umd/react-scheduler-tracking.development.js"></script>
     <script src="../../build/node_modules/react/umd/react.development.js"></script>
     <script src="../../build/node_modules/react-dom/umd/react-dom.development.js"></script>
     <script src="./script.js"></script>

packages/react-scheduler/npm/umd/react-scheduler-tracking.production.min.js

@@ -0,0 +1,95 @@
+/**
+ * @license React
+ *
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+'use strict';
+
+(function(global, factory) {
+  typeof exports === 'object' && typeof module !== 'undefined'
+    ? (module.exports = factory(require('react')))
+    : typeof define === 'function' && define.amd // eslint-disable-line no-undef
+      ? define(['react'], factory) // eslint-disable-line no-undef
+      : (global.ReactSchedulerTracking = factory(global));
+})(this, function(global) {
+  function __getInteractionsRef() {
+    return global.React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED.SchedulerTracking.__getInteractionsRef.apply(
+      this,
+      arguments
+    );
+  }
+
+  function __getSubscriberRef() {
+    return global.React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED.SchedulerTracking.__getSubscriberRef.apply(
+      this,
+      arguments
+    );
+  }
+
+  function unstable_clear() {
+    return global.React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED.SchedulerTracking.unstable_clear.apply(
+      this,
+      arguments
+    );
+  }
+
+  function unstable_getCurrent() {
+    return global.React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED.SchedulerTracking.unstable_getCurrent.apply(
+      this,
+      arguments
+    );
+  }
+
+  function unstable_getThreadID() {
+    return global.React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED.SchedulerTracking.unstable_getThreadID.apply(
+      this,
+      arguments
+    );
+  }
+
+  function unstable_subscribe() {
+    // eslint-disable-next-line max-len
+    return global.React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED.SchedulerTracking.unstable_subscribe.apply(
+      this,
+      arguments
+    );
+  }
+
+  function unstable_track() {
+    return global.React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED.SchedulerTracking.unstable_track.apply(
+      this,
+      arguments
+    );
+  }
+
+  function unstable_unsubscribe() {
+    // eslint-disable-next-line max-len
+    return global.React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED.SchedulerTracking.unstable_unsubscribe.apply(
+      this,
+      arguments
+    );
+  }
+
+  function unstable_wrap() {
+    return global.React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED.SchedulerTracking.unstable_wrap.apply(
+      this,
+      arguments
+    );
+  }
+
+  return Object.freeze({
+    __getInteractionsRef: __getInteractionsRef,
+    __getSubscriberRef: __getSubscriberRef,
+    unstable_clear: unstable_clear,
+    unstable_getCurrent: unstable_getCurrent,
+    unstable_getThreadID: unstable_getThreadID,
+    unstable_subscribe: unstable_subscribe,
+    unstable_track: unstable_track,
+    unstable_unsubscribe: unstable_unsubscribe,
+    unstable_wrap: unstable_wrap,
+  });
+});

packages/react-scheduler/npm/umd/react-scheduler.production.min.js

@@ -0,0 +1,45 @@
+/**
+ * @license React
+ *
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+'use strict';
+
+(function(global, factory) {
+  typeof exports === 'object' && typeof module !== 'undefined'
+    ? (module.exports = factory(require('react')))
+    : typeof define === 'function' && define.amd // eslint-disable-line no-undef
+      ? define(['react'], factory) // eslint-disable-line no-undef
+      : (global.ReactScheduler = factory(global));
+})(this, function(global) {
+  function unstable_now() {
+    return global.React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED.Scheduler.unstable_now.apply(
+      this,
+      arguments
+    );
+  }
+
+  function unstable_scheduleWork() {
+    return global.React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED.Scheduler.unstable_scheduleWork.apply(
+      this,
+      arguments
+    );
+  }
+
+  function unstable_cancelScheduledWork() {
+    return global.React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED.Scheduler.unstable_cancelScheduledWork.apply(
+      this,
+      arguments
+    );
+  }
+
+  return Object.freeze({
+    unstable_now: unstable_now,
+    unstable_scheduleWork: unstable_scheduleWork,
+    unstable_cancelScheduledWork: unstable_cancelScheduledWork,
+  });
+});

packages/react-scheduler/src/__tests__/SchedulingUMDBundle-test.js

@@ -0,0 +1,41 @@
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @jest-environment node
+ */
+'use strict';
+
+describe('Scheduling UMD bundle', () => {
+  beforeEach(() => {
+    // Fool SECRET_INTERNALS object into including UMD forwarding methods.
+    global.__UMD__ = true;
+
+    jest.resetModules();
+  });
+
+  function compareAPIS(apis) {
+    apis = apis.map(api => Object.keys(api).sort());
+    for (let i = 1; i < apis.length; i++) {
+      expect(apis[0]).toEqual(apis[i]);
+    }
+  }
+
+  it('should define the same scheduling API', () => {
+    const umdAPIDev = require('../../npm/umd/react-scheduler.development');
+    const umdAPIProd = require('../../npm/umd/react-scheduler.production.min');
+    const cjsAPI = require('../../index');
+    const secretAPI = require('react/src/ReactSharedInternals').default;
+    compareAPIS([umdAPIDev, umdAPIProd, cjsAPI, secretAPI.Scheduler]);
+  });
+
+  it('should define the same tracking API', () => {
+    const umdAPIDev = require('../../npm/umd/react-scheduler-tracking.development');
+    const umdAPIProd = require('../../npm/umd/react-scheduler-tracking.production.min');
+    const cjsAPI = require('../../tracking');
+    const secretAPI = require('react/src/ReactSharedInternals').default;
+    compareAPIS([umdAPIDev, umdAPIProd, cjsAPI, secretAPI.SchedulerTracking]);
+  });
+});