C# + Selenium

Полный текст примера:

using System;
using System.IO;
using System.Threading.Tasks;
using NUnit.Framework;
using OpenQA.Selenium;
using OpenQA.Selenium.Chrome;
using OpenQA.Selenium.Remote;

public class RTSTest
{
    [Test]
    public async Task TestSelenium()
    {
        // Arrange
        using var driver = new RemoteWebDriver(
            new Uri("http://127.0.0.1:4444/wd/hub"), new ChromeOptions()
        );
        driver.Navigate()
            .GoToUrl("https://react-test-selector.github.io/example-application-for-docs/");
        driver.ExecuteScript(
            await File.ReadAllTextAsync(@"<path-to-script>\react-test-selector.js")
        );

        // Act
        var inputNode = driver.ExecuteScript(
            "return rts.querySelector('Input').at(0).getDomElement()"
        ) as WebElement;
        inputNode.SendKeys("Text");

        // Assert
        var textNode = driver.ExecuteScript(
            "return rts.querySelector('InputValueContent').at(0).getDomElement()"
        ) as WebElement;
        var text = textNode.GetDomProperty("textContent");
        Assert.AreEqual(text, "Input value: Text");
    }
}