Empty_String_Constraint.cs

using NUnit.Framework;
using OpenQA.Selenium;
using OpenQA.Selenium.Chrome;
using OpenQA.Selenium.Firefox;
using OpenQA.Selenium.IE;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Text.RegularExpressions;
 
namespace Assert_Demo
{
    class Assert_Demo_1
    {
        String test_url = "https://accounts.lambdatest.com/login";
        IWebDriver webDriver;
 
        [SetUp]
        public void start_Browser()
        {
            webDriver = new ChromeDriver();
            webDriver.Manage().Window.Maximize();
 
        }
 
        [Test]
        public void test_null()
        {
            String user_name_xpath = "//*[@id='app']/section/form/div/div/input[1]";
 
            webDriver.Url = test_url;
            System.Threading.Thread.Sleep(4000);
 
            //IWebElement submit_element = webDriver.FindElement(By.XPath("//*[@id='app']/section/form/div/div/button"));
 
            IWebElement user_name_element = webDriver.FindElement(By.XPath(user_name_xpath));
 
            user_name_element.SendKeys("abc@gmail.com");
 
            String user_name = user_name_element.GetAttribute("value");
 
            Console.WriteLine("User Name" + user_name);
 
            Assert.That(user_name, Is.Empty);
 
            // submit_element.Submit();
            /* Perform wait to check the output */
            System.Threading.Thread.Sleep(2000);
        }
 
        [TearDown]
        public void close_Browser()
        {
            webDriver.Quit();
        }
    }
}