dotnet/test/common/ElementEqualityTest.cs

// <copyright file="ElementEqualityTest.cs" company="Selenium Committers">
// Licensed to the Software Freedom Conservancy (SFC) under one
// or more contributor license agreements.  See the NOTICE file
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// regarding copyright ownership.  The SFC licenses this file
// to you under the Apache License, Version 2.0 (the
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//
//   http://www.apache.org/licenses/LICENSE-2.0
//
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using NUnit.Framework;
using OpenQA.Selenium.Environment;
using System.Collections.ObjectModel;

namespace OpenQA.Selenium;

[TestFixture]
public class ElementEqualityTest : DriverTestFixture
{
    [Test]
    public void SameElementLookedUpDifferentWaysShouldBeEqual()
    {
        driver.Url = (simpleTestPage);

        IWebElement body = driver.FindElement(By.TagName("body"));
        IWebElement xbody = driver.FindElement(By.XPath("//body"));

        Assert.That(xbody, Is.EqualTo(body));
    }

    [Test]
    public void DifferentElementsShouldNotBeEqual()
    {
        driver.Url = (simpleTestPage);

        ReadOnlyCollection<IWebElement> ps = driver.FindElements(By.TagName("p"));

        Assert.That(ps[1], Is.Not.EqualTo(ps[0]));
    }

    [Test]
    public void SameElementLookedUpDifferentWaysUsingFindElementShouldHaveSameHashCode()
    {
        driver.Url = (simpleTestPage);
        IWebElement body = driver.FindElement(By.TagName("body"));
        IWebElement xbody = driver.FindElement(By.XPath("//body"));

        Assert.That(xbody.GetHashCode(), Is.EqualTo(body.GetHashCode()));
    }

    public void SameElementLookedUpDifferentWaysUsingFindElementsShouldHaveSameHashCode()
    {
        driver.Url = (simpleTestPage);
        ReadOnlyCollection<IWebElement> body = driver.FindElements(By.TagName("body"));
        ReadOnlyCollection<IWebElement> xbody = driver.FindElements(By.XPath("//body"));

        Assert.That(xbody[0].GetHashCode(), Is.EqualTo(body[0].GetHashCode()));
    }

    [Test]
    public void AnElementFoundInViaJsShouldHaveSameId()
    {
        driver.Url = EnvironmentManager.Instance.UrlBuilder.WhereIs("missedJsReference.html");

        driver.SwitchTo().Frame("inner");
        IWebElement first = driver.FindElement(By.Id("oneline"));

        IWebElement element = (IWebElement)((IJavaScriptExecutor)driver).ExecuteScript("return document.getElementById('oneline');");

        Assert.That(element, Is.EqualTo(first));
    }
}