Question

When I write a test in Visual Studio, I check that it works by saving, building and then running the test it in Nunit (right click on the test then run).

The test works yay…
so I Move on…

Now I have written another test and it works as I have saved and tested it like above. But, they dont work when they are run together.

Here are my two tests that work when run as individuals but fail when run together:

using System;
using NUnit.Framework;
using OpenQA.Selenium.Support.UI;
using OpenQA.Selenium;

namespace Fixtures.Users.Page1
{
    [TestFixture]
    public class AdminNavigateToPage1 : SeleniumTestBase
    {
        [Test]
        public void AdminNavigateToPage1()
        {
            NavigateTo<LogonPage>().LogonAsCustomerAdministrator();
            NavigateTo<Page1>();
            var headerelement = Driver.FindElement(By.ClassName("header"));

            Assert.That(headerelement.Text, Is.EqualTo("Page Title"));
            Assert.That(Driver.Url, Is.EqualTo("http://localhost/Page Title"));
        }

        [Test]
        public void AdminNavigateToPage1ViaMenu()
        {
            NavigateTo<LogonPage>().LogonAsCustomerAdministrator();
            Driver.FindElement(By.Id("menuitem1")).Click();
            Driver.FindElement(By.Id("submenuitem4")).Click();
            var headerelement = Driver.FindElement(By.ClassName("header"));

            Assert.That(headerelement.Text, Is.EqualTo("Page Title"));
            Assert.That(Driver.Url, Is.EqualTo("http://localhost/Page Title"));
        }
    }
}

When the second test fails because they have been run together

Nunit presents this:

Sse.Bec.Web.Tests.Fixtures.ManageSitesAndUsers.ChangeOfPremises.AdminNavigateToChangeOfPremises.AdminNavigateToPageChangeOfPremisesViaMenu:
OpenQA.Selenium.NoSuchElementException : The element could not be found

And this line is highlighted:

var headerelement = Driver.FindElement(By.ClassName("header"));

Does anyone know why my code fails when run together, but passes when run alone?

Any answer would be greatly appreciated!

Answer 1

Two things you can try

1. put the break point between the following two lines. And see which page are you in when the second line is hit

2. Introduce a slight delay between these two lines via Thread.Sleep

   Driver.FindElement(By.Id("submenuitem4")).Click();
   var headerelement = Driver.FindElement(By.ClassName("header"));