TypeError:无法读取未定义的属性(读取“equal”)无法求解

当我开始这个测试时,我总是收到“TypeError:无法读取未定义的属性(读取'equal')”错误。

import { Given, When, Then } from '@wdio/cucumber-framework';
import { expect, $ } from '@wdio/globals'
//const { Given, When, Then } = require('cucumber');
//const { expect } = require('chai');

Given('I am on the login page', () => {
    // Открываем страницу
    browser.url('https://www.saucedemo.com/');
});

When('I click login button',async () => {
    // Кликаем на кнопку "Login" с айди "login-button"
    const loginButton = $('#login-button');
    loginButton.click();
    await browser.pause(2000);
});

Then('I should see “Epic sadface: Username is required” error message',async () => {
    // Ожидаем, что появится окно с ошибкой и указанным текстом
    const expectedText = "Epic sadface: Username is required"
    const errorMessageElement = $('.error-message-container h3[data-test="error"]')
    await errorMessageElement.waitForExist();
    const errorMessage = await errorMessageElement.getText();
    //console.log(errorMessage+ '-=-=-=-==-=-=-=-=-=-=-=-=-==-==-')
    await expect(expectedText).to.equal(errorMessage);
});

如您所见,我已尝试通过console.log检查“错误消息”。它是正确的,errorMessage包含正确的字符串“Epic sadface:用户名是必需的”。但为什么它没有通过呢?

我 ve tried to "play" with async and put some "await" in code. Also I 尝试替换

await expect(expectedText).to.equal(errorMessage)

具有

await expect(expectedText).toHaveTextContaining(errorMessage)