React 18 Act Environment

actEnvironment.ts

function getGlobalThis() {
  return global || globalThis || self || window;
}

export function disableReactActEnv() {
  let prev: boolean;
  beforeEach(() => {
    prev = getGlobalThis().IS_REACT_ACT_ENVIRONMENT;
    getGlobalThis().IS_REACT_ACT_ENVIRONMENT = false;
  });
  afterEach(() => {
    getGlobalThis().IS_REACT_ACT_ENVIRONMENT = prev;
  });
}

export function enableReactActEnv() {
  let prev: boolean;
  beforeEach(() => {
    prev = getGlobalThis().IS_REACT_ACT_ENVIRONMENT;
    getGlobalThis().IS_REACT_ACT_ENVIRONMENT = true;
  });
  afterEach(() => {
    getGlobalThis().IS_REACT_ACT_ENVIRONMENT = prev;
  });
}