#selenium #webdriver #chromedriver #geckodriver #automation


Thirtyfour is a Selenium / WebDriver library for Rust, for automated website UI testing. This crate is the synchronous version only. For async, see the thirtyfour crate instead.

3 unstable releases

new 0.19.1 Oct 17, 2020
0.19.0 Oct 3, 2020
0.18.0 Oct 3, 2020

#255 in Testing


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Thirtyfour is a Selenium / WebDriver library for Rust, for automated website UI testing.

It supports the full W3C WebDriver spec. Tested with Chrome and Firefox although any W3C-compatible WebDriver should work.

This crate provides a synchronous (i.e. not async) interface for thirtyfour. For async, see the thirtyfour crate instead.


  • All W3C WebDriver and WebElement methods supported
  • Create new browser session directly via WebDriver (e.g. chromedriver)
  • Create new browser session via Selenium Standalone or Grid
  • Automatically close browser session on drop
  • Find elements (via all common selectors e.g. Id, Class, CSS, Tag, XPath)
  • Send keys to elements, including key-combinations
  • Execute Javascript
  • Action Chains
  • Get and set cookies
  • Switch to frame/window/element/alert
  • Shadow DOM support
  • Alert support
  • Capture / Save screenshot of browser or individual element as PNG

Why 'thirtyfour' ?

It is named after the atomic number for the Selenium chemical element (Se).


The example assumes you have a WebDriver running at localhost:4444.

You can use chromedriver directly by downloading the chromedriver that matches your Chrome version, from here: https://chromedriver.chromium.org/downloads

Then run it like this:

chromedriver --port=4444


To run this example:

cargo run --example sync
use thirtyfour_sync::prelude::*;

fn main() -> WebDriverResult<()> {
     let caps = DesiredCapabilities::chrome();
     let driver = WebDriver::new("http://localhost:4444", &caps)?;

     // Navigate to https://wikipedia.org.
     let elem_form = driver.find_element(By::Id("search-form"))?;

     // Find element from element.
     let elem_text = elem_form.find_element(By::Id("searchInput"))?;

     // Type in the search terms.

     // Click the search button.
     let elem_button = elem_form.find_element(By::Css("button[type='submit']"))?;

     // Look for header to implicitly wait for the page to load.
     assert_eq!(driver.title()?, "Selenium - Wikipedia");


Running the tests for thirtyfour_sync, including doctests

You generally only need to run the tests if you plan on contributing to the development of thirtyfour_sync. If you just want to use the crate in your own project, you can skip this section.

Just like the examples above, the tests in this crate require a running instance of Selenium at http://localhost:4444.

The tests also require a small web app called thirtyfour_testapp that was purpose-built for testing the thirtyfour crate.

This can be run using docker and docker-compose.

To install docker, see https://docs.docker.com/install/ (follow the SERVER section if you're on Linux, then look for the Community Edition)

To install docker-compose, see https://docs.docker.com/compose/install/

Once you have docker-compose installed, you can start the required containers, as follows:

docker-compose up -d --build

Then, to run the tests:

cargo test -- --test-threads=1

We need to limit the tests to a single thread because the selenium server only supports 1 browser instance at a time. (You can increase this limit in the docker-compose.yml file if you want. Remember to restart the containers afterwards)

If you need to restart the docker containers:

docker-compose restart 

And finally, to remove them:

docker-compose down


This work is dual-licensed under MIT or Apache 2.0. You can choose either license if you use this work.

SPDX-License-Identifier: MIT OR Apache-2.0


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