testing js app

node_modules/jest-util/build/isPromise.js

@@ -0,0 +1,20 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', {
+  value: true
+});
+exports.default = void 0;
+
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+// capture globalThis.Promise before it may potentially be overwritten
+const Promise = globalThis.Promise; // see ES2015 spec 25.4.4.5, https://stackoverflow.com/a/38339199
+
+const isPromise = candidate => Promise.resolve(candidate) === candidate;
+
+var _default = isPromise;
+exports.default = _default;