packages/dubbo-web-test/karma-fixup-queueMicrotask.js

// Copyright 2021-2023 Buf Technologies, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

(function () {
  if (typeof globalThis.queueMicrotask === "function") {
    return;
  }

  globalThis.queueMicrotask = (callback) =>
    typeof Promise === "function" && typeof Promise.resolve === "function"
      ? Promise.resolve().then(callback)
      : setTimeout(callback, 0);
})();