dotnet/test/common/CssValueTest.cs

// <copyright file="CssValueTest.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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//
//   http://www.apache.org/licenses/LICENSE-2.0
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using NUnit.Framework;
using OpenQA.Selenium.Environment;

namespace OpenQA.Selenium;

[TestFixture]
public class CssValueTest : DriverTestFixture
{
    [Test]
    public void ShouldPickUpStyleOfAnElement()
    {
        driver.Url = javascriptPage;

        IWebElement element = driver.FindElement(By.Id("green-parent"));
        string backgroundColour = element.GetCssValue("background-color");

        Assert.That(backgroundColour, Is.EqualTo("#008000").Or.EqualTo("rgba(0, 128, 0, 1)").Or.EqualTo("rgb(0, 128, 0)"));

        element = driver.FindElement(By.Id("red-item"));
        backgroundColour = element.GetCssValue("background-color");

        Assert.That(backgroundColour, Is.EqualTo("#ff0000").Or.EqualTo("rgba(255, 0, 0, 1)").Or.EqualTo("rgb(255, 0, 0)"));
    }

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

        IWebElement element = driver.FindElement(By.Id("namedColor"));
        string backgroundColour = element.GetCssValue("background-color");
        Assert.That(backgroundColour, Is.EqualTo("rgba(0, 128, 0, 1)").Or.EqualTo("rgb(0, 128, 0)"));

        element = driver.FindElement(By.Id("rgb"));
        backgroundColour = element.GetCssValue("background-color");
        Assert.That(backgroundColour, Is.EqualTo("rgba(0, 128, 0, 1)").Or.EqualTo("rgb(0, 128, 0)"));
    }

    [Test]
    public void ShouldAllowInheritedStylesToBeUsed()
    {
        driver.Url = javascriptPage;

        IWebElement element = driver.FindElement(By.Id("green-item"));
        string backgroundColour = element.GetCssValue("background-color");

        Assert.That(backgroundColour, Is.EqualTo("transparent").Or.EqualTo("rgba(0, 0, 0, 0)"));
    }
}