I'm trying to implement custom ExpectedConditions method, that will wait for element attribute to change.
Here is my solution:
const ECC = function() {
  /**
   * Expect element attribute to have specific value.
   *
   * @param {ElementFinder} elementFinder
   * @param {string} attrName attribute name to check
   * @param {string} attrVal attribute value to check for
   *
   * @return {boolean}
   */
  this.attributeToHave = async (elementFinder, attrName, attrVal) => {
    const EC = protractor.ExpectedConditions;
    const hasAttr = async () => {
      const actualText = elementFinder.getAttribute(attrName);
      return actualText.indexOf(attrVal) !== -1;
    };
    return await EC.and(EC.presenceOf(elementFinder), await hasAttr);
  };
};
module.exports = new ECC();
And in my onPrepare:
const {expectedConditions} = require('@utils/protractor');
global.ECC = expectedConditions;
And finally in my test suite:
 await browser.wait(await ECC.attributeToHave(dropdown, 'aria-hidden', 'false'), 3000);
But it keeps saying Failed: Wait timed out after 3006ms, What I'm doing wrong, please?
 
    