How to use Selenium Grid with C#? - c#

I'm researching Selenium and have a seminar for my group...
I meet many troubles with this
I use C# language and write a demo SeleniumExample.dll Then I start
selenium RC and NUnit and run it with NUnit to see the test report.
I read testdata from XML.
Here's the SeleniumExample.dll: using System;
using System.Xml;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading;
using NUnit.Framework;
using Selenium;
namespace SeleniumExample
{
public class Success_Login
{
//User defined
private string strURL = "http://newtours.demoaut.com/
mercurywelcome.php";
private string[] strBrowser = new string[3] { "*iehta",
"*firefox", "*safari" };
// System defined
private ISelenium selenium;
private StringBuilder verificationErrors ;
[SetUp]
public void SetupTest()
{
selenium = new DefaultSelenium("localhost", 4444,
this.strBrowser[0], this.strURL);
selenium.Start();
verificationErrors = new StringBuilder();
}
[TearDown]
public void TeardownTest()
{
try
{
selenium.Stop();
}
catch (Exception)
{
// Ignore errors if unable to close the browser
}
Assert.AreEqual("", verificationErrors.ToString());
}
[Test]
public void Success_LoginTest()
{
try
{
XmlDocument doc = new XmlDocument();
XmlNode docNode;
doc.Load("XMLFile1.xml");
docNode = doc["TestCase"];
foreach (XmlNode node in docNode)
{
selenium.Open("/");
selenium.Type("userName",
node["username"].InnerText);
selenium.Type("password",
node["password"].InnerText);
selenium.Click("login");
selenium.WaitForPageToLoad("30000");
Assert.AreEqual("Find a Flight: Mercury Tours:",
selenium.GetTitle());
}
}
catch (AssertionException e)
{
verificationErrors.Append(e.Message);
}
}
}
}
Now I want to have a demo that using Selenium Grid (SG) but I don't know
how to do. I read document and understand the way SG works. I install
SG and install Ant1.8. The tests will communicate with Selenium Hub.
Actually, I just understand the theory I don't know how to make the
tests communicate with Selenium Hub and how to make Selenium Hub
control Selenium RC.
I am a new for Selenium. If anyone know this, please help me. I
appreciate it so much.
THANKS,
Hoang


In reality there is no major difference between Selenium RC and Selenium Grid. The only difference is that with Grid you don't have to know where the RC nodes are but if you use Selenium RC you will have to.
string hubAddress = "machineNameWithSeleniumGridHub"
[SetUp]
public void SetupTest()
{
selenium = new DefaultSelenium(hubAddress, 4444,this.strBrowser[0], this.strURL);
selenium.Start();
verificationErrors = new StringBuilder();
}
When your tests run they will speak to the hub which will then push the commands out to the first available RC. I have a Selenium Tutorial on my site. It uses C# and should get you going.

Related

how slove this error c# selenium find element locator

in need scraping data from this web site i used C# using selenium When extracting data from the element, I run into a problem that it does not find id and classname and Xpath Knowing that I have extracted the parameters of the element
using OpenQA.Selenium;
using OpenQA.Selenium.Chrome;
using System;
namespace Selenium_Automation
{
class Program
{
static void Main(string[] args)
{
IWebDriver driver = new ChromeDriver("chromedriver.exe");
// This will open up the URL
driver.Url = "https://www.olx.com.eg/";
//driver.FindElement(By.Name("q")).SendKeys("PHP");
//driver.FindElement(By.ClassName("gLFyf")).SendKeys("mysql");
driver.FindElement(By.XPath("//*[#id=\"body-wrapper\"]/div/header/div/div[4]/div/button/span")).Click();
driver.FindElement(By.XPath("//*[#id=\"strat-strat-dialog-545-container\"]/div/div/div/div/div[2]/div[2]/button[4]")).Click();
}
}
}

Getting Firefox logs in c# using Selenium throwing NullReferenceException

I am trying to record the log files in Firefox using Selenium in c#;
I have put together a very simple example to try and open a browser and get the logs.
However this is throwing a 'Object reference not set to an instance of an object' exception on the following line.
var entries = driver.Manage().Logs.GetLog(LogType.Browser);
Can anyone help as to why this is happening and if there is any solution?
Here is the full code
using OpenQA.Selenium;
using OpenQA.Selenium.Firefox;
using System;
namespace ConsoleApp2
{
class Program
{
static void Main(string[] args)
{
FirefoxOptions options = new FirefoxOptions();
options.SetLoggingPreference(LogType.Browser, LogLevel.All);
var driver = new FirefoxDriver(options);
driver.Navigate().GoToUrl("http://stackoverflow.com");
var entries = driver.Manage().Logs.GetLog(LogType.Browser);
foreach (var entry in entries)
{
Console.WriteLine(entry.ToString());
}
Console.ReadLine();
}
}
}

I believe that this is an unsupported feature, here's the referenced issues:
https://github.com/SeleniumHQ/selenium/issues/1161
https://github.com/mozilla/geckodriver/issues/284

Selenium C# tests in Browserstack

Does anyone have experience with running Selenium C# tests in Browserstack. Trying out this example from the Browserstack, but I can´t seem to get the test to the Test explorer in Visual Studio. Not sure why I´m not able to execute the test. Any ideas? I´m having no problems running my local test in Visual Studio.
using System;
using OpenQA.Selenium;
using OpenQA.Selenium.Remote;
namespace SeleniumTest
{
class Program
{
static void Main(string[] args)
{
IWebDriver driver;
DesiredCapabilities capability = DesiredCapabilities.Chrome();
capability.SetCapability("browserName", "iPad");
capability.SetCapability("platform", "MAC");
capability.SetCapability("device", "undefined");
capability.SetCapability("browserstack.user", "");
capability.SetCapability("browserstack.key", "");
driver = new RemoteWebDriver(
new Uri("http://hub-cloud.browserstack.com/wd/hub/"), capability
);
driver.Navigate().GoToUrl("http://www.google.com");
Console.WriteLine(driver.Title);
IWebElement query = driver.FindElement(By.Name("q"));
query.SendKeys("Browserstack");
query.Submit();
Console.WriteLine(driver.Title);
driver.Quit();
}
}
}

Try changing this line:
driver = new RemoteWebDriver(new Uri("http://hub-cloud.browserstack.com/wd/hub/"), capability
To
driver = new RemoteWebDriver(new Uri("http://hub-cloud.browserstack.com/wd/hub/"), capability, TimeSpan.FromSeconds(600));
If this does not work, debug it and find out where it is failing so we can narrow it down. You are using the user and key correct?

using System;
using System.Security.Policy;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using OpenQA.Selenium;
using OpenQA.Selenium.Remote;
namespace SeleniumTest
{
[TestClass]
class Program
{
[TestMethod]
public void Test()
{
IWebDriver driver;
DesiredCapabilities capability = DesiredCapabilities.Chrome();
capability.SetCapability("browserName", "iPad");
capability.SetCapability("platform", "MAC");
capability.SetCapability("device", "undefined");
capability.SetCapability("browserstack.user", "");
capability.SetCapability("browserstack.key", "");
driver = new RemoteWebDriver(
new Uri("http://hub-cloud.browserstack.com/wd/hub/"), capability);
driver.Navigate().GoToUrl("http://www.google.com");
Console.WriteLine(driver.Title);
IWebElement query = driver.FindElement(By.Name("q"));
query.SendKeys("Browserstack");
query.Submit();
Console.WriteLine(driver.Title);
driver.Quit();
}
}
}
**Change the add this code and try to check it by adding in empty Unit test class
file**

Selenium C# Can't find ID or Title

I manage to open a firefox browser, go to http://www.google.com/ search for "Bath Fitter". When i see a bunch of links, i want to in fact click on an item of the top menu provided by Google, Images. Images is located next to Map Videos News...
How can i have it click on Images?
Below is my code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using OpenQA.Selenium;
using OpenQA.Selenium.Firefox;
namespace SeleniumHelloWorld
{
class Program
{
static void Main(string[] args)
{
IWebDriver driver = null;
try
{
driver = new FirefoxDriver();
driver.Navigate().GoToUrl("http://www.google.com/");
driver.Manage().Window.Maximize();
IWebElement searchInput = driver.FindElement(By.Id("gbqfq"));
searchInput.SendKeys("Bath Fitter");
searchInput.SendKeys(Keys.Enter);
searchInput.FindElement(By.Name("Images"));
searchInput.Click();
driver.Close();
}
catch (Exception e)
{
Console.WriteLine("Exception ****" + e.ToString());
}
}
}
}

More specifically you can also write your selector pointing from Top Navigation. This is the XPath.
.//*[#id='hdtb_msb']//a[.='Images']
try this;
driver.FindElement(By.XPath(".//*[#id='hdtb_msb']//a[.='Images']"));
EDIT:
Even though the selectors above were correct your code was not working because of the second page was taking too long to load. There you need to wait for the the element to be in ready state and an implicit wait is needed. Change the code in your try block and replace with mine and try
driver = new FirefoxDriver();
driver.Navigate().GoToUrl("http://www.google.com/");
driver.Manage().Window.Maximize();
IWebElement searchInput = driver.FindElement(By.Id("gbqfq"));
searchInput.SendKeys("Bath Fitter");
searchInput.SendKeys(Keys.Enter);
//this is the magic
driver.Manage().Timeouts().ImplicitlyWait(TimeSpan.FromSeconds(10));
By byImage = By.XPath(".//*[#id='top_nav']//a[.='Images']");
IWebElement imagElement =
new WebDriverWait(driver, TimeSpan.FromSeconds(10)).Until(ExpectedConditions.ElementExists(byImage));
imagElement.Click();

Try something like this...
IList<IWebElement> links = driver.FindElements(By.TagName("a"));
links.First(element => element.Text == "Images").Click();

How can you automate Firefox from C# application?

Start with the simplest task of capturing the URL in Firefox from a C# application. It appears using user32.dll Windows API functions will not work as is the approach for capturing the URL within IE.

Should I need to do a capture of the URL with AutoHotkey, for example, I would send Ctrl+L (put focus in address bar and highlight content) and Ctrl+C (copy selection to clipboard). Then you just read the clipboard to get the info.
For more complex tasks, I would use Greasemonkey or iMacros extensions, perhaps triggered by similar keyboard shortcuts.

WatiN has support for Firefox.

WebAii can automate FireFox, including setting and retrieving the URL

It appears to be very beta-ey, but someone built a .net connector for mozrepl. Actually, the mozrepl codebase just moved to github. But mozrepl lets you issue commands to the Firefox's XUL environment.

Try Selenium (the Google testing engine - http://seleniumhq.org/) You can record task (Webpages UI related) done in Firefox and the convert the recording into a C# source :)

You can use Selenium WebDriver for C #.
This is a cross-platform API that allows you to control various browsers using APIs for Java, C#, among others.
Attachment of a code C # with Selenium WebDriver tests.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using OpenQA.Selenium.Firefox;
using OpenQA.Selenium;
using OpenQA.Selenium.Interactions;
using OpenQA.Selenium.Interactions.Internal;
using OpenQA.Selenium.Support.UI;
using OpenQA.Selenium.IE;
using NUnit.Framework;
using System.Text.RegularExpressions;
namespace sae_test
{ class Program
{ private static string baseURL;
private static StringBuilder verificationErrors;
static void Main(string[] args)
{ // test with firefox
IWebDriver driver = new OpenQA.Selenium.Firefox.FirefoxDriver();
// test with IE
//InternetExplorerOptions options = new InternetExplorerOptions();
//options.IntroduceInstabilityByIgnoringProtectedModeSettings = true;
//IWebDriver driver = new OpenQA.Selenium.IE.InternetExplorerDriver(options);
SetupTest();
driver.Navigate().GoToUrl(baseURL + "Account/Login.aspx");
IWebElement inputTextUser = driver.FindElement(By.Id("MainContent_LoginUser_UserName"));
inputTextUser.Clear();
driver.FindElement(By.Id("MainContent_LoginUser_UserName")).Clear();
driver.FindElement(By.Id("MainContent_LoginUser_UserName")).SendKeys("usuario");
driver.FindElement(By.Id("MainContent_LoginUser_Password")).Clear();
driver.FindElement(By.Id("MainContent_LoginUser_Password")).SendKeys("123");
driver.FindElement(By.Id("MainContent_LoginUser_LoginButton")).Click();
driver.Navigate().GoToUrl(baseURL + "finanzas/consulta.aspx");
// view combo element
IWebElement comboBoxSistema = driver.FindElement(By.Id("MainContent_rcbSistema_Arrow"));
//Then click when menu option is visible
comboBoxSistema.Click();
System.Threading.Thread.Sleep(500);
// container of elements systems combo
IWebElement listaDesplegableComboSistemas = driver.FindElement(By.Id("MainContent_rcbSistema_DropDown"));
listaDesplegableComboSistemas.FindElement(By.XPath("//li[text()='BOMBEO MECANICO']")).Click();
System.Threading.Thread.Sleep(500);
IWebElement comboBoxEquipo = driver.FindElement(By.Id("MainContent_rcbEquipo_Arrow"));
//Then click when menu option is visible
comboBoxEquipo.Click();
System.Threading.Thread.Sleep(500);
// container of elements equipment combo
IWebElement listaDesplegableComboEquipos = driver.FindElement(By.Id("MainContent_rcbEquipo_DropDown"));
listaDesplegableComboEquipos.FindElement(By.XPath("//li[text()='MINI-V']")).Click();
System.Threading.Thread.Sleep(500);
driver.FindElement(By.Id("MainContent_Button1")).Click();
try
{ Assert.AreEqual("BOMBEO MECANICO_22", driver.FindElement(By.XPath("//*[#id=\"MainContent_RejillaRegistroFinanciero_ctl00_ctl04_LabelSistema\"]")).Text);
}
catch (AssertionException e)
{ verificationErrors.Append(e.Message);
}
// verify coin format $1,234,567.89 usd
try
{ Assert.IsTrue(Regex.IsMatch(driver.FindElement(By.XPath("//*[#id=\"MainContent_RejillaRegistroFinanciero_ctl00_ctl04_labelInversionInicial\"]")).Text, "\\$((,)*[0-9]*[0-9]*[0-9]+)+(\\.[0-9]{2})? usd"));
}
catch (AssertionException e)
{ verificationErrors.Append(e.Message);
}
try
{ Assert.IsTrue(Regex.IsMatch(driver.FindElement(By.XPath("//*[#id=\"MainContent_RejillaRegistroFinanciero_ctl00_ctl04_labelCostoOpMantto\"]")).Text, "\\$((,)*[0-9]*[0-9]*[0-9]+)+(\\.[0-9]{2})? usd"));
}
catch (AssertionException e)
{ verificationErrors.Append(e.Message);
}
try
{ Assert.IsTrue(Regex.IsMatch(driver.FindElement(By.XPath("//*[#id=\"MainContent_RejillaRegistroFinanciero_ctl00_ctl04_labelCostoEnergia\"]")).Text, "\\$((,)*[0-9]*[0-9]*[0-9]+)+(\\.[0-9]{2})? usd"));
}
catch (AssertionException e)
{ verificationErrors.Append(e.Message);
}
try
{ Assert.IsTrue(Regex.IsMatch(driver.FindElement(By.XPath("//*[#id=\"MainContent_RejillaRegistroFinanciero_ctl00_ctl04_labelcostoUnitarioEnergia\"]")).Text, "\\$((,)*[0-9]*[0-9]*[0-9]+)+(\\.[0-9]{2})? usd"));
}
catch (AssertionException e)
{ verificationErrors.Append(e.Message);
}
// verify number format 1,234,567.89
try
{ Assert.IsTrue(Regex.IsMatch(driver.FindElement(By.XPath("//*[#id=\"MainContent_RejillaRegistroFinanciero_ctl00_ctl04_labelConsumo\"]")).Text, "((,)*[0-9]*[0-9]*[0-9]+)+(\\.[0-9]{2})?"));
}
catch (AssertionException e)
{ verificationErrors.Append(e.Message);
}
System.Console.WriteLine("errores: " + verificationErrors);
System.Threading.Thread.Sleep(20000);
driver.Quit();
}
public static void SetupTest()
{ baseURL = "http://127.0.0.1:8081/ver.rel.1.2/";
verificationErrors = new StringBuilder();
}
protected static void mouseOver(IWebDriver driver, IWebElement element)
{ Actions builder = new Actions(driver);
builder.MoveToElement(element);
builder.Perform();
}
public static void highlightElement(IWebDriver driver, IWebElement element)
{ for (int i = 0; i < 2; i++)
{ IJavaScriptExecutor js = (IJavaScriptExecutor)driver;
js.ExecuteScript("arguments[0].setAttribute('style', arguments[1]);",
element, "color: yellow; border: 2px solid yellow;");
js.ExecuteScript("arguments[0].setAttribute('style', arguments[1]);",
element, "");
}
}
}
}

One Microsoft tool I ran into:
UI Automation, as part of .NET 3.5
http://msdn.microsoft.com/en-us/library/aa348551.aspx
Here's an example:
http://msdn.microsoft.com/en-us/library/ms771286.aspx
I don't have UI Spy on my pc to interrogate Firefox, so I don't know if this will help out with your user32.dll problem.

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