test.cs

using System;
using System.Collections;
using System.Collections.Generic;
using Bizzkit.PIM.EndToEndTests.Helper.SeleniumTests.Helper;
using Bizzkit.PIM.EndToEndTests.Pages;
using NUnit.Framework;
using OpenQA.Selenium;
using OpenQA.Selenium.Chrome;

namespace Bizzkit.PIM.EndToEndTests
{
    public class WebDriversCollection: IEnumerable<IWebDriver>, IDisposable
    {
        private IWebDriver[] Drivers = Array.Empty<IWebDriver>();

        public void SetDrivers(IWebDriver[] drivers)
        {
            Drivers = drivers;
        }
        
        public IEnumerator<IWebDriver> GetEnumerator()
        {
            foreach(IWebDriver val in Drivers)
            {
                yield return val;
            }
        }

        IEnumerator IEnumerable.GetEnumerator()
        {
            return GetEnumerator();
        }

        public void Dispose()
        {
            foreach(IWebDriver val in Drivers)
            {
                val.Quit();
            }
        }
    }

    [TestFixture]
    public abstract class BaseET
    {
        private static WebDriversCollection Drivers= new WebDriversCollection();

        [OneTimeSetUp]
        public void SetUp()
        {
            Drivers.SetDrivers(new []
            {
                SeleniumTestBase.Chrome(),
                SeleniumTestBase.Chrome()
            });
        }
        
        [OneTimeTearDown]
        public void TearDown()
        {
            Drivers.Dispose();
        }
    }


    public class LoginPageTests:BaseET
    {


    [Test]
    [TestCaseSource(nameof(Drivers))]
    public void LoginTest(IWebDriver driver)
    {
        new PimLoginPage().Login(driver);
    }
    }
}