Assertion with Expect

Overview

When writing tests, it's often necessary to ensure that values meet certain criteria. With the expect function you have access to a variety of matchers that help verify different characteristics of the browser, element, or object mock.

For example, you can check if the browser is on a specific page

await browser.url("https://webdriver.io/");
// ...
await expect(browser).toHaveUrl("https://webdriver.io");

or check if the element has an attribute with the specified value

const myInput = await browser.$("input");
await expect(myInput).toHaveAttribute("class", "form-control");

or check if the specified request has been made for your mock

const mock = browser.mock("**/api/todo*");
// ...
await expect(mock).toBeRequested();

By default, the timeout for executing asserts is 2000ms with a check interval of 100ms. However, if necessary, these values can be redefined in the system section in the general config.

{
// another testplane configs
    system: {
        expectOpts: {
            wait: 5000,
            interval: 200,
        }
    }
}