thirtyfour 0.29.4

Thirtyfour is a Selenium / WebDriver library for Rust, for automated website UI testing. It supports the full W3C WebDriver spec.
Documentation 
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//! Requires chromedriver running on port 4444:
//!
//!     chromedriver --port=4444
//!
//! Run as follows:
//!
//!     cargo run --example shadowroot

use thirtyfour::prelude::*;

#[tokio::main]
async fn main() -> color_eyre::Result<()> {
    color_eyre::install()?;
    std::env::set_var("RUST_BACKTRACE", "1");

    let caps = DesiredCapabilities::chrome();
    let driver = WebDriver::new("http://localhost:4444", caps).await?;

    // Navigate to website containing example shadowroot.
    driver.get("https://web.dev/shadowdom-v1/").await?;

    let elem = driver.query(By::Tag("iframe")).first().await?;
    driver.switch_to().frame_element(&elem).await?;

    // Get the element containing the shadow root node.
    let elem = driver.query(By::Tag("fancy-tabs")).first().await?;
    // Now get the shadow root node itself.
    let root = elem.get_shadow_root().await?;

    // Now we can search for elements nested below the shadow root node.
    let tabs = root.query(By::Id("tabsSlot")).first().await?;
    let name = tabs.get_property("name").await?;
    assert!(name.is_some());
    assert_eq!(name.unwrap(), "title");

    // Always explicitly close the browser. There are no async destructors.
    driver.quit().await?;

    Ok(())
}